The Northeast Weather Blog...

Hot and humid weather continues...
Posted by: Zachary Labe, 19:37 GMT le 14 juin 2010 +0
Upper level ridging continues across the eastern half of the nation as anomalous westerly 850hPa temperatures occur. This is will allow for a continued pattern with decaying cold fronts accompained by prefrontal warm southwesterly winds. Hot and humid air will return by the weeks end after midweek rainfall.

"Afternoon Thoughts" (Updated 6/14)
Good afternoon all!!! It is hard to believe my junior year has quickly come to a ceasing end. While pondering across the recess schoolyard in first grade, senior year appeared a daunting task far off on the horizon. None the less after countless new friendships, relationships, and innovative education motivations, the time has already come and approached in a matter of seconds. In an era of a crumbled economy, an importance is placed on secondary education; college is a near necessity in many peoples' opinions for success. While I am sure many of the last generation would argue success comes from hardwork and not necessarily a piece of paper (college diploma), importance is now placed on a solid educaton to guide one's ship in their future endeavors. The importance of success or just completing all of one's homework is in a majority of the youth's minds despite current cliched biases by current adults. I have been one of few fortunate enough to know from a young age what my passion is. There are thousands of people lost in a sea of abyss pondering the exact question in which I discovered an answer to years back. Therefore I have been able to base my priorities and motivations towards those endeavors and opportunities. Now as I look into future education, a critical decision arises. One could argue the benefits of any University, but in my mind I am looking for all of the benefits to allow future networking. Meteorology has a limited major field across the United States to a select few schools, especially in close proximity to my location. For years I pictured an image of myself frolicking across the grassy knoll at Penn State with a meteorology book in my hand studying under those large trees. The magnitude and size of those old trees seem smart in themselves. But as I begin to make this decision, I have second thoughts... For years I have strived to position myself with relationships with those who value the learning process. Education and knowledge never end and really only begin each day of our century long lives. To be accepted into a pretigious school such as Cornell would be my dream and strive my passion for working hard excellence. But there are thousands of kids across the nation with the same statistics as mine and many whom are much better. The separating factor is I know my where I want my future to be and I have roads to get me there. Whether or not my application points towards this ivy league school remains in question, but I suppose 70$ is worth the possibility of forever changing education and resume. But there remains the error... the personal fable... this exists for things such as the lottery. People believe "someone has to win and it could be me." In any case where ever my education turns towards, I know that the relationships and decisions I have made will only help me towards a better tomorrowland.

Also WU members, please vote in the latest poll...

"Regional Radar"

(Courtesy of NOAA)

"Regional Satellite"

(Courtesy of Penn State Meteo.)

"Regional Advisories"

(Courtesy of NOAA)

"Forecast Discussion" (Updated 6/14)
A 1020hPa high pressure will be departing over New England on Tuesday, but will still allow the northwest flow to keep generally clear skies over much of the northern Middle Atlantic. A decaying cold front will be approaching from the west in the Ohio Valley later in the day allowing for mid level and high level cirrus to overspread the region from southwest to northeast. H85 temperatures around 11-13C will keep temperatures near normal values in the 80s on Tuesday. By Tuesday night into Wednesday PWATs will be on the increase as the southwest moisture flow opens up to 1.8in precipitative waters. A weak low level jet will fuel scattered showers and isolated thunderstorms, but with the close proximity of a weak 1012hPa low pressure, stratiform rain will be the dominate threat for most areas on Wednesday. QPF ranges from .25in-.5in for most guidance with a few convective feedback problems on the GFS. The warm front will attempt to move northward on Wednesday allowing for a dirty warm sector, but it will be limited with high pressure over Newfoundland. Therefore elevated instability will dominate as clouds prevent diurnal heating maintaining LI's only around -2 and CAPE around 500j/kg. Most thunderstorm chances will be limited to along and south of interstate 76 in Pennsylvania. By Wednesday night the cold front will pass through, but cooler air will be nonexistent with H85s near 13C. Thursday will feature a northwest flow with a few orographically enhanced cumulus, but generally clear skies. Friday will feature a return to the southwest flow with increasing PWATs to near 1.5in. A few diurnal thunderstorms are also possible over the Laurel Highlands along the ridgetops. But generally most areas will be dry through Saturday night.

"Current Surface Map and Weekly History of Jet Stream Position"

(Courtesy of Weather Underground)

"Weekly Forecast" (Updated 6/14)
Tuesday- High pressure will dominate the region continuing brilliant sunshine with only a few high cirrus especially later in the day. Northwest flow will continue adding a few cumulus over the higher ridgetops in the northwestern portions of Pennsylvania. Under a northwest flow will keep temperatures near normal levels with lower humidity as dewpoints stay in the 50s and 60s. Highs will range from the mid 70s across the higher elevations to the low 80s near the Washington DC metropolitan region. Tuesday night will feature an increase in clouds as a cold front and coupled low pressure approach the region. Rainfall will move in across the region from west to east with lowering stratus. The rain shield will be generally confined to the northern portions of the region especially near northwestern Pennsylvania where up to .5in of rain is possible in a steady moderate rain. Lows will be mild generally in the upper 60s for most areas.

Wednesday- Wednesday will feature widespread stratus clouds as the cold front and low pressure approach from the west. Scattered rain showers and isolated thunderstorms will be possible most of the day especially north of the Mason-Dixon line. Most areas will receive rainfall generally ranging around .25in-.5in of rain with higher amounts courtesy of scattered elevated thunderstorms. Highs will be cooler in the low to mid 70s with a few 80s possible in the warm sector across Maryland and Delaware. In this region a few more peaks of sunshine are possible with a few scattered strong to severe thunderstorms. Damaging winds will be the dominate threat and isolated at best. Wednesday night will feature clearing skies from west to east. A few sheltered valleys may see some patchy valley fog with visibilities below 1mi later in the night. Lows will be in the low to mid 60s for most areas as drier air moves in

Thursday- High pressure will approach the region again under a northwest flow with very slightly cooler temperatures near normal values. Humidity levels will be a bit lower also with dewpoints in the low to mid 60s. Highs will range from 80F over the mountains to near 85F across the I-95 corridor with cooler air over the coastal waters courtesy of the sea breeze. Sunshine will be widespread over the region with any fog burning off by 9am. Thursday night will feature clear skies and cooler temperatures as dewpoints will be slightly lower. Radiational cooling will allow lows to drop into the mid to upper 50s for many areas.

Friday- Friday will feature a turn towards warmer and more humid air as the wind turns out of the southwest. Partly cloudy skies will dominate the region's weather with a few larger cumulus over the Laurel Highlands. A few pulse thunderstorms are possible over the ridgetops later in the day courtesy of elevation enhanced precipitation, but most all areas will be dry throughout much of the day. Any areas though that do see a thunderstorm, will be at threat to heavy rain from slow moving flash flooding. Highs will approach 90F for southern areas into Maryland/Delaware and southern Pennsylvania with mid 80s over the northcentral mouintains in Pennsylvania. Friday night will feature humid conditions with dewpoints in the upper 60s and low 70s featuring patchy fog and muggy conditions as lows drop into the upper 60s.

Saturday/Sunday- The weekend will feature hot and humid conditions with highs in the mid 80s to near 90F along with a chance of diurnal isolated thunderstorms Saturday with a more organized threat of thunderstorms towards Sunday. Sunshine will dominate the skies both days for a nice weekend outdoors despite the heat and humidity.

"Wildfire Outlook" (Updated 6/14)
Late meteorological Spring and meteorological Summer often lead towards spotty mesoscale rainfall. Essentially therefore rainfall falls generally in spotty convective events. Similar to lake effect snow, areas a few miles away may note heavy rain accumulations in excess of 1in, while another region nearby reports drizzle. For instance this month my rainfall is around an inch and a quarter, but Middletown (20min to my south) is reporting well over three inches of rain. Therefore lawns and foliage are beginning to turn brown here along the Blue Ridge. In general drought conditions are very difficult to define during the summer season unless a general absence of rain has been noted regionwide. Wildfire season is quickly coming to an end and this will be the last wildfire outlook until next Fall. All foliage is out and green, and general drought conditions are nonexistent over Pennsylvania, Maryland, and Delaware except for isolated locations. This outlook will be replaced by a quick Chesapeake Bay and Atlantic Coastline forecast section. Brushfires and forestfires were relatively limited this Spring as rainfall was generally very plentiful and there was a quick start to the green foliage season across the countryside courtesy of very warm weather. Drought conditions, fortunately, have been relatively limited during the past 5-10 years or so across Pennsylvania, Maryland, and Delaware. Yes there have been a few dry periods, but in general they have not lasted more than a few months. The most severe drought in recent memory was during the late 90s with many water conservation bans in place during this time period. Looking ahead there are not any starch signs of drought conditions approaching as wet moisture anomalies are continuosly being noted on long term climate models such as the CFS.

Here again are the fire criteria for development in Pennsylvania... Link.

Criteria for rapid initiation and spread of wildfires in PA:

1. Winds must be sustained at 15 mph (13 knots) for two hours or more, and

2. Minimum Relative Humidities (which usually occur in the afternoon) must be 30 percent or less, and

3. 10-hour Fuel Moistures must be 15 percent or less (and expected to remain there for two or more days).

"Fire Outlooks from Storm Prediction Center Days 1, 2, and 3"

(Courtesy of NOAA)

"Gardening Outlook" (Updated 6/14)
After unusually mild weather for the last several months, gardening has been an extended season so far along with generally plentiful rainfall except for a few of us along the rainshadow region in the northern Lower Susquehanna Valley. Anyways this past weekend I finally got around to digging up my cool weather crops including the last of the lettuce, spinach, broccoli, and cauliflower. My broccoli had an absolutely terrific year with large heads that were very flavorful. My cauliflower on the other hand had a terrible year, because after each began to form a head they quickly bolted and went to seed/flower. I even tried blanching it by protecting the leaves, but had little to no success. Perhaps the unusually mild weather was a bit too much for the sensitive plants. The lettuce and spinach had another successful year, and I will be sad to see it go despite giving much away due to too much excess. My Swiss Chard and Onions remain and are still being harvested when needed. For those who have not planted Swiss Chard, it has a wonderful flavor, adds color to the garden, and grows with little to no maintenance. My celery plants continue to grow and look very healthy. The topsy-turvy strawberry plant has been producing several strawberries, which are small but have a wonderful flavor. In general I will consider the planter a success. My other experimentation planters are doing wonderful, the potato barrels. My potato plants are growing at such an incredible rate and are now showing white flowers. I am quite pleased, but I guess the true test will come during harvest later in the year. My blueberry plants are doing well, and I finally found some cheese cloth for bird protection this summer to hopefully salvage the berry harvest. Yesterday I finally planted my tomato plants, cucumbers, zucchini, and peppers. Yes I know I am a bit late, but better late than never. I planted Early Girl, Roma, and Cherry tomato plants and Big Bertha Pepper Plants. My watermelon plants are not growing too much this year, unlike last year, but still I guess it is too early to tell if they will be successful. Last year I picked the melons too early and it never ripened so if anyone has any methods to tell when to pick a melon, feel free to mention them below. I also picked all of my sugar snap peas and then planted yellow wax beans in their location. I find yellow beans have a 100% better flavor than their sister green beans.

Looking ahead at this week, widespread rainfall and convective chances exist around the Wednesday time period in whic most locations will receive around .25in+ of rain, but hot and dry weather resumes for the weeks end before the next cold front approach in the Sunday time frame. Watering needs will be likely early in the week and late in the week as the hot weather will continue to beat on the soil as we enter the time of year with the strongest solar radiation. Happy Gardening!!!

"Soil Moisture Anomalies and 5-day Precipitation Amounts from Hydro Prediction Center"

(Courtesy of NOAA)

"Severe Weather Outlook" (Updated 6/14)
Severe weather chances remain limited to one potential this week during the Wednesday time frame. A cold front will be approaching from the west as the surface low tracks across the Ohio Valley. A warm front will attempt to move northward over Maryland and Pennsylvania, but will make little progress with high pressure departing off of Newfoundland. PWATs will increase Tuesday night with widespread stratiform rain trailing over northern Pennsylvania with widespread cloud cover south to the Mason-Dixon line. As the cold front closes in the warm sector will generally be limited to the Maryland-Delaware region, but even there dense stratus clouds may keep a cap on activity. At this point the GFS generates meager CAPE around 1000j/kg or below in this period, and most of the instability remains elevated. But if the warm front can progress a bit farther north, this will push the stratiform rains farther north into upstate New York. This will be something to watch. In any case the severe weather potential during this time period remains below 15% and generally confined to south of the Pennsylvania-Maryland border. Winds aloft remain around 30knots 0-6km shear levels, so nothing impressive, but still relatively strong. Later in the week diurnal convective chances increase as the flow turns out of the southwest with increasing heat and humidity. Daily CAPE levels will reach 2000j/kg, but with a lack of an organized trigger, most pulse thunderstorms wil be limited to orographically enhanced locations. The Laurel Highlands will be favored in this time frame with the highest threat featuring heavy rain and flash flooding. But still a wet downburst could produce a damaging wind gust or two. By the end of the upcoming weekend, it appears another cold front approaches the region with again the potential of stronger thunderstorms. All in all though this week, severe weather and general convective chances will be limited.

"Severe Weather Outlooks from Storm Prediction Center Days 1, 2, and 3"

(Courtesy of NOAA)

"Monthly Outlook" (June)
As noted by many, since about March temperatures across much of the region east of the Mississippi have maintained well above normal values. In fact some areas have seen some of the warmest Aprils on record for major metropolitan regions. And looking ahead there does not appear to be any major pattern changes. In fact the ECWMF and GFS consistently point to a very warm weather regime across the eastern seaboard in the 15 day time frame. H85 anomalies are well above normal values in this range with increasing upper level ridging over the region with a possible favorable Bermuda high development. The 5/16/10 6z GFS is now printing out its first 90 degree 2m values for KMDT in the end of the two week time frame as H85s rise above 14C. There have also been some interesting ENSO developments, which pose a lot of questions for long term weather predictions. Recent cool SST upwellings have developed across the western and eastern Pacific with very few positive anomalies. It is safe to note the strong El Nino has finally come to a cease. Northern Pacific SSTs in fact have surged well below normal anomalies therefore defining a strongly negative PDO. All Nino regions have now surged below +.5C now with neutral values. All tropical Pacific SSTs are nearly near negative values with already an evident ongoing easterly wind anomaly. So yes I am signaling a possible, dreaded La Nina. I must say I am a bit surprised, but not surprised at this development. Since about mid March, it was evident the higher positive SST anomalies were beginning to fall, but they have been falling at an incredible rate in fact. Several global ENSO models noted this development back in the winter signaling a strong La Nina, but many dismissed this as too extreme. While at this point forecasting a moderate or strong La Nina would be pointless, it is critical to note that this may be a slight possibility down the road. This tumultuous period across the tropical Pacific is definitely unusual going from a record La Nina to a very strong El Nino (strongest since 1998), and a radical switch to a La Nina. At this point I am going conservative with my Nina prediction until I see further evidence. This will be something critical to watch for next winter. In any case what does this all mean for June...

Temperature- I am going to go with normal to slightly above normal temperatures. I do think after these well above normal positive temperature anomalies, we will relax for a period again using my own little balance of equilibrium theory. Still though with very little cool air in Canada, I see nothing that would lend itself in the cooler than normal department. Positive anomalies will probably range from (+0.3)-(+0.9)F. We will likely see at least one heat wave (period of 3+ 90F high temperature days in a row). But also some cooler weather is likely as noted by external global wavelengths. General global forecast models are hinting at normal temperature anomalies, but generally speaking they have been running a bit too cool recently.

Precipitation- For precipitation MJO patterns indicates normal to above normal precipitation with several rainy periods likely in June. These rainy period will likely be in correspondence with the cooler than normal temperature periods. Rainfall anomalies will likely range from (+0.25")-(+0.75"). Isolated convection will cause localized areas to receive lower than normal values and higher than normal values depending on geographic placement. Several severe weather outbreaks are likely and I actually think the frequency of severe weather days will be higher than normal across the entire Middle Atlantic region. We have already noted several impressive and unusual convection days this 2010 season.

"Temperature and Precipitation Outlooks from Climate Prediction Center for next 30 days"

(Courtesy of NOAA)

"Learning Corner" (Updated 6/14)
As tropical season kicks off with an invest in the central Atlantic, effects often are also felt along the Middle Atlantic coast at some point during the tropical season. To review some of the forecasting techniques for inland tropical storm effects, it is critical to note the importance of possible PRE events...

Predecessor Rain Events (PRE) situations occur around 500-700 miles in three possible locations ahead of a tropical system. Either in the left quadrant from the storm, the right quadrant, or directly ahead of the storm. Typical regions of concerns are in the front entrance of an upper level trough which for this situation puts the area mentioned above in the highest threat. The mesoscale event is difficult to predict for placement and timing, but most times produce some localized every heavy rainfall with even mesoscale rainfall totals occurring in isolated locations. Several of these events have produced over 6inches in an isolated favorable orographic lift location. The moisture is fed by a strong low level jet ahead of a tropical system allowing moisture to stream up the right side of the upper level trough. These events occur in a narrow corridor of heavy rainfall that trains over the same location. Most recently tropical storm Hanna back in September 2008 produced this in nearly the same location as the forecast event in this situation. Up to 4inches of rainfall fell in eastern Pennsylvania.

It is always importance to note the importance of a low level jet influence in correlation with an anomalous plume of gulf moisture +2SD. PWATs typically must reign around or above 2in. Many times these areas of heavy rain are picked up on local high resolution models such as the 4km WRF, but often on the lower resolution, such as the GFS, these are typically just included as areas of 1in stratiform rain areas. It is equally important to note QPF charts, 750mb, and 500mb charts to note the trough axis position and low level jet influences. These PRE areas have been noted in the past to produce copious amounts of rain even before the main synoptic rainfall. These also occur in highly sheared environments therefore enhancing the potential for elevated convection including isolated severe weather. These PRE events tend to stay stationary for about a 12hr period with embedded thunderstorms and isolated severe weather. Remember the tornado that occurred in Allentown during the PRE from Tropical Storm Hanna, and how there was no warning given.

An example of a PRE NEXRAD radar image would be Hurricane Rita and the heavy rain plumes located north of the center of circulation...

(Courtesy of Albany EDU)

For more information visit this site... Link.

"Here north of Harrisburg 2010 statistics"
(Severe Weather Stats...)
Severe Thunderstorm Watches- 5
Severe Thunderstorm Warnings- 5
Tornado Watches- 1
Tornado Warnings- 0
Total Thunderstorms- 9

(Precipitation Stats...)
Flood Watches- 3
Flood Warnings- 1
Monthly Precipitation- 2.42inches
Yearly Precipitation- 16.64inches

(Temperature Stats...)
Heat Advisories- 0
Excessive Heat Warnings- 0
90degree days- 7
Categories: Weekly Forecast
  Permalink | A A A
Reader Comments
Display: 0, 50, 100, 200 Sort: Newest First - Order Posted
Viewing: 101 - 151

Page: 1 | 2 | 3 | 4Blog Index

101. TheRasberryPatch 21:05 GMT le 22 juin 2010    
i was going into Hershey, but turned around. there are trees and tree limbs all over the place.
i've got to get a new Davis. there is no record of the winds. ugh.
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
102. Zachary Labe 21:13 GMT le 22 juin 2010    
Quoting TheRasberryPatch:
i was going into Hershey, but turned around. there are trees and tree limbs all over the place.
i've got to get a new Davis. there is no record of the winds. ugh.

Wow, must have been an impressive downburst. I actually went to your station page on WU to check your highest wind gust, but did not see anything recorded, ugh.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
103. TrentonThunder 21:18 GMT le 22 juin 2010    
Pretty sure I'm seeing a sea breeze front on radar moving west through central & southern New Jersey, just starting to clear the Pinelands. I think this line will dissapate as it enters NJ.
Member Since: 17 décembre 2009 Posts: 0 Comments: 796
104. Hoynieva 21:19 GMT le 22 juin 2010    
this isn't looking good for the game...though if it hits it looks like it would only be a delay rather than a cancellation. I'll update there from my phone if it ends up hitting us.
Member Since: 20 janvier 2009 Posts: 0 Comments: 1292
105. Zachary Labe 21:20 GMT le 22 juin 2010    
First storm report...
1in hail in Annville, Lebanon County.

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
EAST CENTRAL YORK COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
SOUTHERN LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

* UNTIL 600 PM EDT

* AT 516 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM
CONTAINING THE POSSIBLE TORNADO WAS NEAR SHENKS FERRY...MOVING EAST
AT 30 MPH.

* THE TORNADO WILL BE NEAR...
SMITHVILLE AROUND 525 PM...
QUARRYVILLE AROUND 535 PM...
WAKEFIELD AROUND 540 PM...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
106. TheRasberryPatch 21:31 GMT le 22 juin 2010    
i am very close to Annville. sirens all around the area. leaves and limbs down. i saw a few fence sections removed from posts in the neighborhood.

i saw at least 3 trees where they were snapped a few feet above the ground. i would estimate they were 12" diameter trees. all within 100 feet of each other and kind of in a row
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
107. Zachary Labe 21:36 GMT le 22 juin 2010    
Quoting TheRasberryPatch:
i am very close to Annville. sirens all around the area. leaves and limbs down. i saw a few fence sections removed from posts in the neighborhood.

i saw at least 3 trees where they were snapped a few feet above the ground. i would estimate they were 12" diameter trees. all within 100 feet of each other and kind of in a row

You may want to call in your report to the NWS...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
108. Zachary Labe 21:40 GMT le 22 juin 2010    
Woah...

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
528 PM EDT TUE JUN 22 2010

0421 PM TORNADO CAMPBELLTOWN 40.28N 76.58W
06/22/2010 LEBANON PA EMERGENCY MNGR

POSSIBLE TORNADO IN CAMPBELLTOWN. WIDESPREAD TREES DOWN
WITH STRUCTURAL DAMAGE.

0430 PM TORNADO MOUNT GRETNA 40.25N 76.47W
06/22/2010 LEBANON PA EMERGENCY MNGR

POSSIBLE TORNADO NEAR MT. GRETNA. LARGE TREE DOWN ON
HOUSE. FUNNEL CLOUD SIGHTED.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
109. TheRasberryPatch 21:48 GMT le 22 juin 2010    
wow Blizz....i told you i thought i heard a train. so that very possibly could have been a tornado.
the rain was coming down so hard with the wind whipping and hail. i forgot about my garage door....it faces NW and it had been up. the power went out before the storm and I wasn't thinking. when i realized the rain was coming in the garage i went out into the garage....hail was coming in, rain was heavy and a river started coming into the garage. i realized to pull the cord for the door opener and close the door...duh.

i am sorry i didn't have my head out the door. i was going to the basement to get a battery for my weather station. and installing it and then listening

i guess the NWS will be out in my area checking out all the trees that are down.
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
110. Zachary Labe 21:50 GMT le 22 juin 2010    
TheRasberryPatch- From what I have heard... it sounds definitely like a tornado blew through your region. Looks like structural damage is right along Mt. Gretna ridge just east of Campbelltown from some of the reports. Boy your area sure is unlucky with tornadoes...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
111. Zachary Labe 21:52 GMT le 22 juin 2010    
Pretty evident hook echo in southern Lancaster, it may have pulsed rotation again. Interestingly enough CTP DID NOT issue a tornado warning and the Severe Thunderstorm Warning did not mention rotation for Lebanon County. Hopefully there were no injuries. The radar at the time definitely had small signs of rotation with reflectivity fields.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
112. TheRasberryPatch 22:05 GMT le 22 juin 2010    
it certainly is Blizz.

the time i heard the train would have been just before the rain hit. i was outside closing up the windows to my truck and I was entering the garage. that is when the cloud wall was coming into the area getting ready to overtake my house. that is when i heard the sound. and with my weather radio battery dead and no power i decided to get the battery installed. i guess i missed out on spotting any type of spinning clouds.

my wife just came home from Hershey and said all kinds of trees down around Milton Hershey School. and at least 20 large trees down going along Rt 322 coming into Campbelltown
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
113. Zachary Labe 22:09 GMT le 22 juin 2010    
TheRasberryPatch- Wow, that is something. The news said parts of 322 are shutdown with debris on the road. It will be interesting to see especially for you, where the structural damage exactly is.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
114. weathergeek5 22:19 GMT le 22 juin 2010    
Here in northern Delaware it is noisy outside. Will go outside and observe. I am on my laptop now so all my electronics are not plugged in at the moment.
Member Since: 25 décembre 2005 Posts: 0 Comments: 1721
115. TheRasberryPatch 22:24 GMT le 22 juin 2010    
The only damage I saw was flashing off a house, about a 12' section. 3 areas of fencing removed from the posts. except for all the trees down

You certainly called it earlier today. anymore surprise storms coming?
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
116. originalLT 22:31 GMT le 22 juin 2010    
Blizz, TRP. is right, you really did call it earlier today on your post #86. Good job!!
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
117. TrentonThunder 00:17 GMT le 23 juin 2010    
My cousin just called me from Langhorne PA (Lower Bucks County) from Chilis near Oxford Valley Mall and said everything turned into a whiteout and when they went to outside there were signs ripped out of the ground and everything. She asked me if there was a tornado and I told her it was entirely possible.
Member Since: 17 décembre 2009 Posts: 0 Comments: 796
118. originalLT 00:56 GMT le 23 juin 2010    
Getting a pretty good thunder shower now, some heavy rain with alittle lightning, looks like it will be over in 20-30 mins. Will give you precip totals when it stops.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
119. onoweather 01:31 GMT le 23 juin 2010    
i havent posted on here since the winter so I might as well make up for it. I worked tonight in mount gretna, and I'm not so sure it was a tornado at that point but maybe blizz can help me out. The winds were gusting from the west with heavy wind and hail coming down. Then there was a brief break maybe 30 seconds, and the wind shifted to the northeast and east for less than a minute, which is when most of the damage occured and then extremely heavy rain and lots of hail which I believe is rfd. There were trees laying north to south(one pine at least 60 foot tall) and several poles blown over from west to east. So maybe it was a weak rotation that made it to the surface and a micro burst combination?, not sure. It sounds like colebrook and campbelltown had more structural damage then gretna. The storm seemed to take almost the same path as the one that hit campbelltown a few years ago. Awesome storm to watch
Member Since: 3 décembre 2008 Posts: 0 Comments: 58
120. upweatherdog 02:45 GMT le 23 juin 2010    
Ono- I know your queston was for Blizzard, but I think you may have experienced a gustnado. It's a intense short lived rotation that sometimes occurs as a downburst impacts the ground and spreads.
Member Since: 14 octobre 2007 Posts: 173 Comments: 1365
121. originalLT 03:14 GMT le 23 juin 2010    
One last(I Think!) cell is moving over me now, the precip lasted longer than I thought, it kept building just to my West and moving East over me. I think I've gotten around an inch of rain but I'll check it for sure when it stops. I have an old-fashioned rain guage that I physically have to go outside and check.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
122. originalLT 03:51 GMT le 23 juin 2010    
Just had the dogs out one last time for tonight, checked the rain guage, it has stopped raining, I received 1.12". Quite a good amount. Not too much lightning and thunder, and no wind gusts. Temp. is 69F, no wind, and the Baro is 29.92F, sky is cloudy, humudity near 95%.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
124. TheRasberryPatch 13:23 GMT le 23 juin 2010    
I can't believe how many trees just snapped at their trunks like a toothpick. Also, I passed a corn field this morning in Annville on Rt 117 and all the corn tops were shredded.
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
125. shipweather 13:24 GMT le 23 juin 2010    
81 Degrees already in Kutztown. Last few days the temps haven't reached the predicted highs. 93 called for today, we'll see....
Member Since: 15 décembre 2007 Posts: 19 Comments: 946
126. partylight 13:47 GMT le 23 juin 2010    
A few tornado's for you folks down in PA yesterday
onoweather, here is what you saw
SPC
DAMAGE. (CTP)
2030 MOUNT GRETNA LEBANON PA 4025 7647 POSSIBLE TORNADO NEAR MT. GRETNA. LARGE TREE DOWN ON HOUSE. FUNNEL CLOUD SIGHTED. (CTP)

Member Since: 8 décembre 2008 Posts: 0 Comments: 107
127. TrentonThunder 14:33 GMT le 23 juin 2010    
Quoting P451:
Again I missed out terribly on any rain here in Central NJ. This is a very bad trend that has now played out the past TEN times we've been forecasted for storms - and seen them pop on radar to the west - and ended up with nothing.

Nice light show to the east around 10PM of a cell that moved through northern NJ and off the coast. Was about 40 miles east of me and putting on a spectacular display of lightning high in the towers of the cell.

Beyond that, we're bone dry, and it's bad.

92F yesterday. 95 forecasted today.

Thursday the next chance for rain. Not expecting anything anymore given the constant pattern of convection to die off as it enters central NJ - from any direction.

Had a great sea breeze yesterday afternoon. Dropped us from 92 to 80 in about 15 minutes. However that breeze made it 25 miles inland and likely killed those nice storm that were heading our way.

Seems to be the story of the summer thus far.


I saw that sea breeze front moving west on radar yesterday late afternoon. One of those ones that actually whips up a band of light showers. I believe it's what dissipated the first band of storms that reached Trenton as showers w some thunder.
Member Since: 17 décembre 2009 Posts: 0 Comments: 796
128. TrentonThunder 14:40 GMT le 23 juin 2010    
Quoting TheRasberryPatch:
I can't believe how many trees just snapped at their trunks like a toothpick. Also, I passed a corn field this morning in Annville on Rt 117 and all the corn tops were shredded.


Man that's just devastating to a farmer.


06/22/2010 0730 PM
Langhorne, Bucks County.
Thunderstorm wind damage, reported by public.
A worker at sesame place reported extensive damage to their property. Numerous trees down, as well a fences blown over, with tables and umbrellas blown around.
Member Since: 17 décembre 2009 Posts: 0 Comments: 796
129. originalLT 21:44 GMT le 23 juin 2010    
Hi Blizz and all in central and eastern PA. Quite a large area of T. Storms and showers again in eastern Ohio and western Pa. again the old question, do you think it will hold together and reach you guys late tonight or in the early morning hours? The last group of storms was pretty severe out by you. Of course most of them developed right near or on top of you, so they had no time to dissapate as the moved eastward.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
130. baxtheweatherman 21:58 GMT le 23 juin 2010    
This just came out:

Statement as of 5:37 PM EDT on June 23, 2010

... Tornado confirmed near South Annville TWP in Lebanon County
Pennsylvania...

Location... South Annville township in Lebanon County Pennsylvania
date... June 22 2010
estimated time... 430 PM EDT
maximum ef-scale rating... EF0
estimated maximum wind speed... 80 mph
maximum path width... 50 yards
path length... 200 yards
beginning lat/Lon...
ending lat/Lon...
* fatalities... 0
* injuries... 0

* the information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in NWS
storm data.

... Summary...
the National Weather Service in State College PA has confirmed a
tornado near South Annville TWP in Lebanon County Pennsylvania on
June 22 2010.

A survey team from the National Weather Service in State College
has concluded that an EF0 tornado touched down briefly at the
thousand trails campground in South Annville township in Lebanon
County around 430 PM Tuesday. Maximum winds within this tornado
were estimated at around 80 mph.

This tornado was embedded within a much larger area of straight
line downburst winds with estimated gusts up to 90 mph. The
damage from the downburst began in Dauphin County just east of
Hershey near the Milton Hershey school... then extended east
southeast for about 7 miles into southwest Lebanon County. The
damage path was up to 1 mile wide and consisted of mainly downed
trees. However... a roof was torn off a home in Derry
township... where 90 winds were estimated. A farmhouse in South
Annville township also suffered significant damage with a portion
of the roof torn off and windows broken.

This information can also be found on our website at
weather.Gov/ctp.

For reference... the Enhanced Fujita scale classifies tornadoes into
the following categories:

EF0... wind speeds 65 to 85 mph.
EF1... wind speeds 86 to 110 mph.
EF2... wind speeds 111 to 135 mph.
EF3... wind speeds 136 to 165 mph.
EF4... wind speeds 166 to 200 mph.
EF5... wind speeds greater than 200 mph.

For reference...
a microburst is a convective downdraft with an affected outflow
area of less than 2 1/2 miles wide and peak winds lasting less
than 5 minutes. Microbursts may induce dangerous
horizontal/vertical wind shears... which can adversely affect
aircraft performance and cause property damage. Straight-line
winds are generally any wind that is not associated with
rotation... used mainly to differentiate them from tornadic winds.
Member Since: 31 décembre 2007 Posts: 0 Comments: 114
131. originalLT 22:16 GMT le 23 juin 2010    
Blizz, that area of T.Storms is moving pretty quickly, maybe it will reach you by 10pm or so, again if it holds together.Sure seems hot enough to keep things active well into the night.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
132. baxtheweatherman 22:50 GMT le 23 juin 2010    
We just got a watch and then a thunderstorm warning. Rain gauge is ready, 1 to 2 inches possible in localized areas.
Member Since: 31 décembre 2007 Posts: 0 Comments: 114
133. Zachary Labe 23:50 GMT le 23 juin 2010    
MCS dying out quickly as a warm layer aloft CAP prevented any cumulus echo top growth today therefore warming the cloud tops and weakening the thunderstorm complex east of the mountains.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
134. originalLT 00:44 GMT le 24 juin 2010    
Gotcha! I see that on the radar. Also it seems to have a SE componant to it so the worst would have probably gone to your South.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
135. TheRasberryPatch 00:48 GMT le 24 juin 2010    
i take it you are saying that bit of rain won't make it over the mountains.

not terribly unbearable today. my high got to 91F with somewhat low humidity. i think the humidity was in the 40's. now if it had been in the 60's it would probably have been unbearable.

Blizz - did you do any investigating of the damage today?
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
136. originalLT 02:07 GMT le 24 juin 2010    
Cool looking little isolated Strong Cell in NW Pa.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
137. TheRasberryPatch 12:03 GMT le 24 juin 2010    
Blizz - I take it a cold front will be moving through the area this afternoon. What are your thoughts? How far south will it go before it moves back as a warm front? I thought I saw on tv (I was watching local the other night to see the damage) that this one is not strong and it won't be until Monday until we get a strong front.
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
138. Zachary Labe 12:36 GMT le 24 juin 2010    
Cold front moves through with less humid air for tomorrow, but ripe severe weather conditions may allow for a significant squall line to cause widespread severe weather reports over the Northeast today. I will have more on this later today...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
139. TheRasberryPatch 13:12 GMT le 24 juin 2010    
Thanks Blizz. did you get a chance to check out any of the damage yesterday. around the Milton Hershey School and east on 322 would be a good place to see the straighline damage.

btw - i picked another 30 or so cucumbers yesterday and probably get another 20 more today
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
140. originalLT 15:34 GMT le 24 juin 2010    
Hi Blizz and all, there is quite a nice band of showers and T. Storms moving Eastward in north-central PA. Looks like this group of showers will move North of you guys, but may get to me by 3-4PM. What do you think Blizz, will this hold together? or even get stronger?
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
141. originalLT 15:42 GMT le 24 juin 2010    
On radar that area seems to be weakening alittle bit.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
142. originalLT 16:01 GMT le 24 juin 2010    
Wow, another line is popping-up now west of you Blizz, near Altoona, its growing in strength and coverage, looks like you guys will get that one in a couple of hours!
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
143. Zachary Labe 17:30 GMT le 24 juin 2010    
Thundering here with a new warning...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN YORK COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
NORTH CENTRAL FRANKLIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
NORTHWESTERN LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
CUMBERLAND COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
LEBANON COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
DAUPHIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA...
PERRY COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

* UNTIL 230 PM EDT

* AT 127 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE SEVERE STORMS
EXTENDED FROM LYKENS TO AMITY HALL TO BIG SPRING STATE PARK...AND
WERE MOVING EAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
WILLIAMSTOWN AND SHERMANSDALE AROUND 135 PM...
DEHART DAM AND NEWVILLE AROUND 145 PM...
ELLENDALE FORGE AROUND 150 PM...
BLOSERVILLE AROUND 155 PM...
MARYSVILLE AND FORT INDIANTOWN GAP AROUND 200 PM...
ROCKVILLE AND PENN NATIONAL RACE AROUND 205 PM...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
144. Zachary Labe 17:32 GMT le 24 juin 2010    
Quoting TheRasberryPatch:
Thanks Blizz. did you get a chance to check out any of the damage yesterday. around the Milton Hershey School and east on 322 would be a good place to see the straighline damage.

btw - i picked another 30 or so cucumbers yesterday and probably get another 20 more today

I wanted too, but I was not home yesterday. I guess the final report is an EF-0 tornado.
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
145. originalLT 17:38 GMT le 24 juin 2010    
Be careful Blizz , looks like it will be right on you in 5 mins. or so . Fill us in how it was after it passes.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
146. TheRasberryPatch 17:49 GMT le 24 juin 2010    
clouds are getting dark and circling. looks like another round of storms
Member Since: 26 janvier 2007 Posts: 72 Comments: 5638
147. Zachary Labe 17:49 GMT le 24 juin 2010    
Strongest storm of the year for here, but nothing terribly impressive. Though looking at the cloud organization and gust front, this squall line will definitely produce pretty widespread straightline wind damage in the Lower Susquehanna Valley though. Very heavy rain involved in the squall line with a max rain rate of 10.29in/hr. It looks like the core of the squall went just to my east in East Hanover Township, Dauphin County and it looks like Indiantown Gap was slammed. Watchout those downstream of Harrisburg!
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
148. originalLT 18:00 GMT le 24 juin 2010    
Thanks Blizz for the report. Looking at the map, I know you said you are 10 miles NE of Harrisburg, is that near Linglestown?
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
149. Zachary Labe 18:05 GMT le 24 juin 2010    
Quoting originalLT:
Thanks Blizz for the report. Looking at the map, I know you said you are 10 miles NE of Harrisburg, is that near Linglestown?

Yep, right nearby. A nice .43in of rain here. Watchout for that bow echo moving through western Connecticut! Pretty many damage reports are coming out of that...
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302
150. originalLT 18:17 GMT le 24 juin 2010    
Thanks, it seems the bulk of it is sliding by just to my north and NE. I am at work nw in Cos Cob CT, which is a mile East of Greenwich, and the sun is still out here. Looks like I may get some light showers here in 1/2 hour or so.But my house I think caught the tail end of that line. I'll check the rain guage when I get home this evening.
Member Since: 31 janvier 2009 Posts: 0 Comments: 5054
151. Zachary Labe 18:25 GMT le 24 juin 2010    
Quoting originalLT:
Thanks, it seems the bulk of it is sliding by just to my north and NE. I am at work nw in Cos Cob CT, which is a mile East of Greenwich, and the sun is still out here. Looks like I may get some light showers here in 1/2 hour or so.But my house I think caught the tail end of that line. I'll check the rain guage when I get home this evening.

You are under a tornado warning just to your east!

* TORNADO WARNING FOR...
SOUTHERN NEW HAVEN COUNTY IN SOUTHERN CONNECTICUT...
FAIRFIELD COUNTY IN SOUTHERN CONNECTICUT...

* UNTIL 245 PM EDT...

* AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR TRUMBULL...
OR NEAR BRIDGEPORT...MOVING EAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MILFORD AND ORANGE
Member Since: 14 décembre 2007 Posts: 253 Comments: 14302

Viewing: 101 - 151

Page: 1 | 2 | 3 | 4Blog Index

New Comment
Community Standards Policy Comments will take a few seconds to appear.
Post Your Comments
Please sign in to post comments.
Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.
About Blizzard92
Cornell University- Atmospheric Sciences Student; Central PA SKYWARN Storm Spotter; American Meteorological Society Member; PA CoCoRaHS Branch Member

Personal Weather Stations
Linglestown, PA
Elevation: 520 ft
Température: 76.0 ° F
Point de rosée: 71.2 ° F
Humidité: 85%
Vent: Calme
Rafale de vent: 0.0 mph
Updated: 21:40 EDT le 21 mai 2013
Community Activity