Dr. Jeff Masters' WunderBlog

July 22, 2011: A day of records
Posted by: Dr. Jeff Masters, 16:56 GMT le 23 juillet 2011 +8
The crest of the extreme heat wave of July 2011 has passed, although temperatures are still going to be dangerously hot in the Mid-Atlantic and Northeast today. New York City (Central Park) will reach 100° again, as well as Philadelphia and possibly Washington Dulles. Heat index values could surpass the 110° mark today, and excessive heat warnings are in effect from New York City to South Carolina, as well as a large portion of the Central United States. Yesterday, the heat index soared past 120° in Wilmington, DE (124), Easton, MD (125), Annapolis, MD (120) and Atlantic City, NJ (122), among others. A more complete list of Friday's heat index extremes can be found here.

Numerous records fell yesterday as far north as Maine. There were plenty of daily records to talk about, but here are some of the noteworthy all-time record high temperatures:

Newark, NJ: 108° (old record was 105° set in 2001)
Washington Dulles, DC: 105° (old record was 104° on multiple dates)
Bridgeport, CT: 103° (ties the old record set in 1957)
Hartford, CT: 103° (old record was 102° set on multiple dates)
New Haven, CT: 102° (old record was 101° set in 1926)

Baltimore hit 106°, one degree shy of their all-time high record which was set in 1936. New York City (Central Park) set a daily record of 104°, which was 2 degrees shy of their 106° all-time high record, which was also set in 1936. More on the record-setting year of 1936 in yesterday's blog from Jeff. Two notable all-time record high minimums were also set yesterday: 84° in New York (Central Park) and 86° in Newark, NJ.

Our weather historian, Christopher C. Burt, keeps track of 303 select stations in the U.S. with long standing record histories. So far this summer, seven of these have broken or tied their all-time maximum temperature records. Some of these were long-standing:

• Amarillo, TX 111° (1892)
• Dodge City, KS 110° (1874 tied)
• Newark, NJ 108° (1893)
• D.C. Dulles 105° (1962)
• Tallahassee, Fl 105° (1883)
• Hartford, CT 103° (1885)
• New Haven, CT 102° (1780)

The last summer to have more all-time high records than this year was 2002, which set 9. Christopher C. Burt estimates that yesterday probably rates in the top five hottest days on record for the mid-Atlantic states (Washington D.C. to Boston).

Invest 90L


Satellite imagery of NHC Invest 90L this morning.

Invest 90L is looking ragged on satellite as it makes its way across the Caribbean islands. While this wave looked ripe for eventual development earlier this week, it has really taken a turn for the worse as it moved across the Main Development Region of the North Atlantic. Today, low level circulation is could favorably be described as less than moderate, and almost nonexistent at higher levels. Today, not one of the global models I've looked at (ECMWF, NOGAPS, CMC, UKMET, or GFS) develop 90L, but they are coming into better agreement that the wave's track will be across the Caribbean islands and into the Gulf of Mexico, rather than up the east coast of Florida. This could be one of the reasons the models are not suggesting development—too much land interaction, not enough time over open warm waters. However, its hard to say that this wave will not show some signs of improvement when it reaches the Gulf. Water will be toasty, moisture will be relatively high, and wind shear will remain incredibly low. Today the National Hurricane Center is giving this wave a 20% chance of development over the next 48 hours. My forecast has been the same for the past two days, right around 20% chance of development over the lifetime of the wave.

Thanks to our weather historian Christopher C. Burt for some useful information on heat waves and yesterday's records. I'll have another blog on Monday.

Angela
Categories: Heat
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151. chevycanes 18:53 GMT le 23 juillet 2011    
Member Since: 6 août 2007 Posts: 0 Comments: 687
152. sunlinepr 18:54 GMT le 23 juillet 2011    
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154. chevycanes 18:56 GMT le 23 juillet 2011    
Quoting DestinJeff:
at this point let's at least hope that 90L transverses the eastern caribbean quickly, so to avoid prolonged invest tracking

people keep talking about land interaction, but I don't see it happening. the what-would-be-center of 90L is south of major islands, and I think will track substantially away from hispaniola for eventual development south-ish of Jamaica. beyond that I will not venture a guess.

i generally agree.

although as we've seen with systems like this a new center could reform at any point if deep convection gets going further to the N or NE.
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155. ncstorm 18:57 GMT le 23 juillet 2011    
12Z NOGAPS just do Texas so wrong..but it looks like it has the second storm heading to FLORIDA!!

Link
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156. nrtiwlnvragn 18:57 GMT le 23 juillet 2011    
GOES East recently started Rapid Scan Operations for the next 24 hours, so the GHCC Loop will have eight frames per hour.
Member Since: 23 septembre 2005 Posts: 12 Comments: 9089
157. KEEPEROFTHEGATE (Mod) 18:58 GMT le 23 juillet 2011    
Quoting DestinJeff:
if convection continues for awhile pressure will fall near the ofcl center.
yes and then the turning will commence again but this may be all day time heat induced and once the sun goes down the storms fade away
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158. JrWeathermanFL 19:00 GMT le 23 juillet 2011    
All 3 tropical storms this year have had an eye like feature.
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159. KEEPEROFTHEGATE (Mod) 19:04 GMT le 23 juillet 2011    
90L/INV/XX
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160. nigel20 19:04 GMT le 23 juillet 2011    
I wouldn't give on 90l just yet, if it gets to the western carib/ GOM then it could develope.
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161. blsealevel 19:08 GMT le 23 juillet 2011    
GFDL 90 hr out

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162. blsealevel 19:14 GMT le 23 juillet 2011    
Yep spins it up around Jamacia
we should see the other models start to pick this up by late tonight or tommorow morning wird ant it
Member Since: 23 août 2008 Posts: 0 Comments: 1916
163. BahaHurican 19:15 GMT le 23 juillet 2011    
BTW, I'm having internet problems [again!] so if I drop out of the conversation it's not really me, it's my ISP....

I'm thinking about 90L that it wasn't expected to do much before about 70W, so I wouldn't be surprised to see something after that point. I think there's still sufficient potential there. However, nothing will happen if we don't start to see some real rotation again...

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164. CanesfanatUT 19:16 GMT le 23 juillet 2011    
Quoting Patrap:
Lotsa consensus downstream in the Dynamic Run..as well


Oh yeah - that is crazy how close all the models are.
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165. tiggeriffic 19:17 GMT le 23 juillet 2011    
hey ya keeper...how goes it?...so...do you think 90 is pulling the day time fire up and evening cool down or is it finally pulling together enuf convection to be classified a TD....
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166. stormwatcherCI 19:17 GMT le 23 juillet 2011    
If the GFDL shows 90L at 0 hour which would be now and it is showing the pressure at 1008 mb, why is it showing other places at 1014 mb ?
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167. muddertracker 19:17 GMT le 23 juillet 2011    
Quoting Neapolitan:
Temps are a little lower than yesterday's, but there's still another two to four hours to, er, beat the heat:

TODAY'S HIGH TEMPERATURES FOR SELECTED US CITIES AS OF 2:00 PM EDT (7/22 HIGHS IN PARENTHESES)

WICHITA FALLS, TX: 100 (104)
OKLAHOMA CITY, OK: 97 (100)
AMARILLO, TX: 95 (100)
KANSAS CITY, MO: 100 (102)
ST. LOUIS, MO: 98 (101)
NEW YORK, NY: 100 (104)
NEWARK, NJ: 102 (108)
PHILADELPHIA, PA: 98 (103)
BALTIMORE, MD: 101 (108)
WASHINGTON, DC: 101 (102)
RICHMOND, VA: 101 (102)
RALEIGH, NC: 101 (103)


I want to say "Oh...poor babies..." But then I remembered that a lot if these folks don't have indoor air..I hope they get relief soon!
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168. muddertracker 19:20 GMT le 23 juillet 2011    
I know a lot of Texans who are rooting for 90L...that scares me a bit...once these things get into the gulf they are somebody's nightmare.
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169. tiggeriffic 19:22 GMT le 23 juillet 2011    
neapolitan...add Charleston, SC in that at highs 98F (heat index 108)...
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170. stormpetrol 19:23 GMT le 23 juillet 2011    
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171. blsealevel 19:25 GMT le 23 juillet 2011    
Thats why this things arnt very good at forcasting strength but at least its showing us something is their and a general direction though they fail at that at times also i just use um for that resone alone
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172. Levi32 19:28 GMT le 23 juillet 2011    
Quoting TropicalAnalystwx13:


Do you think that 90L will have a chance to develop once in the Gulf of Mexico? Any ULL's look to be there in 4-6 days or so?


The GFS and ECMWF have the western Caribbean upper low moving west into Mexico by the Day 4-5 period. With the upper low to the west and the TUTT to the east, chances are there will be an at least semi-favorable pocket between the two, though subsidence south of the big U.S. high may still be an issue. The wave will need to be firing convection near the NW Caribbean and Florida Straights though if it is to have a lot of luck in the gulf.
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173. wunderkidcayman 19:29 GMT le 23 juillet 2011    
90L looks better I think at 8pm TWO 90L will be up to 40% if this continues
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174. JrWeathermanFL 19:31 GMT le 23 juillet 2011    
Quoting wunderkidcayman:
90L looks better I think at 8pm TWO 90L will be up to 40% if this continues


Pressures arent falling though and its not headed into a favorable environment
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175. JRRP 19:35 GMT le 23 juillet 2011    
NE winds all day here in santo domingo
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176. drs2008 19:37 GMT le 23 juillet 2011    
Quoting chevycanes:

the GFDL doesn't show it moving due west. shows wnw and it doesn't take it all the way to the mexican coast in the latest run. shows it a couple hundred miles NW of the Yucatan.

HWRF doesn't take it due west either. it stops its run with the storm just to the NW of the Yucatan.
Maybe shoot the gap?
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177. redwagon 19:38 GMT le 23 juillet 2011    
Quoting muddertracker:
I know a lot of Texans who are rooting for 90L...that scares me a bit...once these things get into the gulf they are somebody's nightmare.

This may sound cynical, but Texas has a pretty good evacuation record (not counting Ike :()and we really won't survive much more of this drought.
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178. ncstorm 19:38 GMT le 23 juillet 2011    
12Z ECMWF..

Link
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179. wunderkidcayman 19:42 GMT le 23 juillet 2011    
Quoting JrWeathermanFL:


Pressures arent falling though and its not headed into a favorable environment

first let me correct you on something it is headed into a good envronment with 5-10kt shear building to the west of it and the 15 and higher getting kicked out the other thing the pressures will soon fall
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180. angiest 19:43 GMT le 23 juillet 2011    
Quoting redwagon:

This may sound cynical, but Texas has a pretty good evacuation record (not counting Ike :()and we really won't survive much more of this drought.


I think a *lot* of us would like something weak to move in, dump a few inches of rain, and move on. We do need it. Wait til the rest of the country sees what happens to corn, beef, dairy, and wheat prices. Our corn crop failed (statewide), ranchers have been culling herds, the wheat crop failed, cotton largely failed. I'm sure other farming and ranching areas suffered similarly.

We don't want or need another Allison, though.
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181. ackee 19:44 GMT le 23 juillet 2011    
I dont think 90L will move over hispanoal likely track south of there also south of jamaica guess we see
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182. yonzabam 19:45 GMT le 23 juillet 2011    
Quoting redwagon:

This may sound cynical, but Texas has a pretty good evacuation record (not counting Ike :()and we really won't survive much more of this drought.


I think there's some strange force field on the Texan border. Everywhere around you, like Mexico and Louisiana has had drought busting rains. But they all seem to stop at the border.
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184. brazocane 19:45 GMT le 23 juillet 2011    
Quoting redwagon:

This may sound cynical, but Texas has a pretty good evacuation record (not counting Ike :()and we really won't survive much more of this drought.


Ike evacuation went OK it was Rita that was the evacuation killer...
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186. blsealevel 19:51 GMT le 23 juillet 2011    
Quoting DestinJeff:
12Z ECMWF looks to send the 90L energy up toward the central gulf coast

@ +120



That was fast I really didnt expect that till later tonight.
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187. reedzone 19:52 GMT le 23 juillet 2011    
Nice circulation, broad, just south of PR


May get back to 30% at 8 p.m. if trends continue. The wind shear that tore it apart last night has lifted more to the north.
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188. chevycanes 19:52 GMT le 23 juillet 2011    
Quoting neutralenso:
Does Anyone know what is the best track for 90 L and will shear be favorable in the gulf when it gets there?

everything would just be a guess.
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189. bappit 19:54 GMT le 23 juillet 2011    
Quoting brazocane:


Ike evacuation went OK it was Rita that was the evacuation killer...

The evacuation for Rita killed people ... literally.
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190. CybrTeddy 19:54 GMT le 23 juillet 2011    
The models are showing a lotta nuttin.. telling us that we're going to be seeing a lotta nuttin until August or so.
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191. JrWeathermanFL 19:55 GMT le 23 juillet 2011    
90L looks better now. Just for excitement, I hope it forms.
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192. tiggeriffic 19:56 GMT le 23 juillet 2011    
still watching the critters myself...trust nature compared to machines...they sense things before we do, and they know when troughs are weakening vs holding strong b4 computer models have time to put a change into the scenerio
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193. muddertracker 19:56 GMT le 23 juillet 2011    
Quoting bappit:

The evacuation for Rita killed people ... literally.

My family lived in Elgin, TX. We were on bicycles and motorcycles taking gas to those who ran out trying to get to Austin. It was chaos.
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194. blsealevel 19:58 GMT le 23 juillet 2011    
Best track see post 129

Dynamic Models (More sophisticated models)

Shear is scary low

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195. muddertracker 19:59 GMT le 23 juillet 2011    
Quoting angiest:


I think a *lot* of us would like something weak to move in, dump a few inches of rain, and move on. We do need it. Wait til the rest of the country sees what happens to corn, beef, dairy, and wheat prices. Our corn crop failed (statewide), ranchers have been culling herds, the wheat crop failed, cotton largely failed. I'm sure other farming and ranching areas suffered similarly.

We don't want or need another Allison, though.

I sure can't argue with any of that. I guess I'm just a little hesitant to root for any storm this time of year..too many unknown variables in that scenario...jmo
Member Since: 16 août 2007 Posts: 1 Comments: 2167
196. tiggeriffic 20:01 GMT le 23 juillet 2011    
Quoting bappit:

The evacuation for Rita killed people ... literally.


same thing happened during floyd on the east coast... people stuck on the road...lots of people released from hospitals...died on the roads because oxygen tanks ran out etc...total road blocks etc...first they said FL...so they evacuated north....then GA was on the hit list...so they and FL came further north, then SC was on the hit list...by then we were packed with 3 states worth of people...they wouldn't open the roads back to the south...so everyone still tried to go north...it took us 9 hours to go 20 miles by the time we were able to try to leave...it was horrible and we were not trying to go north we went due west on the back roads...the main roads and interstates were worse...
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197. drs2008 20:02 GMT le 23 juillet 2011    
My guess is cyclogenesis will begin whe Camille began,south of Jamaica
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198. muddertracker 20:03 GMT le 23 juillet 2011    
I've been starring at the GOES infrared too long...everything is starting to spin!
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199. zoomiami 20:04 GMT le 23 juillet 2011    
Hi Tigger! Long time no see -- hope all is well with you and the family.

As to the evacuations - yes -- that's why more places are working on evacuating in place. If you live close to the coast -- move out to some place inland with family or friends. We have all seen that the moving of large populations does not work. Obviously this wouldn't apply to New Orleans, but plenty of places it would work.
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200. EYEStoSEA 20:05 GMT le 23 juillet 2011    
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201. blsealevel 20:06 GMT le 23 juillet 2011    
Quoting drs2008:
My guess is cyclogenesis will begin whe Camille began,south of Jamaica


Did yo experience Camille?
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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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