The U.S. and European cold blast: blame the NAO

By: Dr. Jeff Masters , 16:00 GMT le 07 janvier 2010

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The Deep South shivered through another frigid morning today, with low temperature records crumbling again over much of Florida. Lakeland hit 27°F, smashing the old record of 34°F; Melbourne hit 28°F, eclipsing the old record of 32°F; and West Palm Beach bottomed out at 37°F, besting the old record of 38°F. The cold wave is being driven by an unusual sharp and persistent kink in the jet stream that is being blocked from moving by a strong ridge of high pressure over Greenland. As a result, an exceptionally strong surface high pressure of 1055 mb over the North Central U.S. is pushing large amounts of cold, Arctic air southwards from Canada. No coldest January temperature records have been set yet from the cold blast, but the 500 largest U.S. cities have been averaging about 11 new daily low temperature records per day the first five days of January, according to the National Climatic Data Center. The cold will ease Friday in the Deep South, but return with a vengeance Saturday night though Monday morning, as another push of cold air descending from Canada promises to bring a cold wave that will approach the December 1989 and January 1977 cold waves in intensity, and may being some new all-time January low temperature records to the South.

Colder in Florida than Alaska and Greenland
The sharp kink in the jet stream has brought record warm temperatures to a few stations in Alaska and the Pacific Northwest this week, making much of coastal Alaska warmer than Florida. Cold Bay, Alaska, set a record high yesterday of 47°F, after recording a low temperature of 30°F. This made Cold Bay warmer than Pensacola, Florida, which had a high of 47°F and a low of 24°F. In fact, most of Florida--including Jacksonville, Tampa, Melbourne, and Tallahassee--recorded lows at or below the 27°F low recorded in Anchorage, Alaska yesterday. The jet stream kink has also brought temperatures more than 30°F above average to Greenland. The temperature in Narsarsuaq, Greenland at 10am EST today was 46°F, far warmer than most of Florida.


Figure 1. Departure of the surface temperature from average for the first three day of 2010 shows much colder than average conditions were present over the Southeast U.S., much of Europe, and Central Asia. Much warmer than average temperatures were present over the Northwest U.S., Greenland, the Arctic, and Southern Asia. A sharp kink in the jet stream was responsible for the temperature anomaly pattern. Image credit: NOAA/ESRL.

Snow in Florida?
It doesn't snow very often in Florida, and the Wikipedia list of snow events in Florida lists only seven such events over the decade of the 2000s. This weekend's cold wave may be able to generate some snow over isolated regions of Central Florida, though it appears that the odds of this happening are less than 30%. The most widespread snowfall in Florida history occurred on January 19, 1977, when snow fell over much of the state, with flurries as far south as Homestead. Snow flurries also fell on Miami Beach for the only time in recorded history.


Figure 2. North Atlantic Oscillation (NAO) index for September 9, 2009 - January 6, 2010 (black line) and forecast from the GFS model (red lines). The NAO index was strongly negative, near -2.0, for much of December and January. Image credit: NOAA/CPC.

The winter cold blast: blame the North Atlantic Oscillation (NAO)
Why has the winter been so cold over Eastern North America and northern Europe? Well, don't blame El Niño. El Niño winters are rarely this cold. Instead, blame the the North Atlantic Oscillation (NAO). The NAO is a climate pattern in the North Atlantic Ocean of fluctuations in the difference of sea-level pressure between the Icelandic Low and the Azores High. It is one of oldest known climate oscillations--seafaring Scandinavians described the pattern several centuries ago. Through east-west oscillation motions of the Icelandic Low and the Azores High,the NAO controls the strength and direction of westerly winds and storm tracks across the North Atlantic. A large difference in the pressure between Iceland and the Azores (positive NAO) leads to increased westerly winds and mild and wet winters in Europe. Positive NAO conditions also cause the Icelandic Low to draw a stronger south-westerly flow of air over eastern North America, preventing Arctic air from plunging southward. In contrast, if the difference in sea-level pressure between Iceland and the Azores is small (negative NAO), westerly winds are suppressed, allowing Arctic air to spill southwards into eastern North America more readily. Negative NAO winters tend to bring cold winters to Europe, and the prevailing storm track moves south towards the Mediterranean Sea. This brings increased storm activity and rainfall to southern Europe and North Africa.

The winter of 2009 - 2010 has seen a very strong negative NAO, causing much of our cold weather over Eastern North America and Europe. The NAO index for the month of December 2009 was -1.93, which is the third lowest NAO index since 1950 for a winter month (December, January, or February). The only winter months with a lower NAO index were February 1978 (-2.20) and January 1963 (-2.12). January 1963 was one of the coldest months on record in the UK and the Eastern U.S.. February 1978 was the coldest February on record for five U.S. states, and featured the historic blizzards in both the U.S. and UK. The NAO so far for January 2010 has continued to stay strongly negative, ranging between -1.5 and -2.1. However, the blocking ridge over Greenland is forecast to weaken next week, allowing the sharp kink in the jet stream to straighten out. This will increase the NAO index to more typical values, allowing a return of more ordinary winter weather to the U.S. and Europe.

Jeff Masters

From The Porch 1 (suzi46)
from our porch view of sunrise this morning..totally different from the 'splendiferous' shots 1-8 taken from the top of our field overlooking the mountains
From The Porch 1
First snow (Rowdyblue)
of winter in South Mississippi.
First snow
Wind blown snow (bikesnapper)
Like sand dunes or Antelope Canyon
Wind blown snow

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Even if they use Tally's airport as the high it will be around 26 deg below the average high.
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2328. IKE
168 hour 18Z GFS....wow!!!

Member Since: 9 juin 2005 Posts: 23 Comments: 37858
2326. IKE
156 hour 18Z GFS....

Member Since: 9 juin 2005 Posts: 23 Comments: 37858
Quoting StSimonsIslandGAGuy:
32.9 here after a high of 35.4. We've kept a weather journal here since Nov 22, 2003 and this day has set two records for our journal.

The coldest high temperature, and our first high temperature in the 30s.

The coldest average temp for the day. Min 28.6 Max 35.4 yielding an average of 32.0, which has a good chance of falling since the temperature is already beginning to fall quickly. I think we will be well below 28.6 by midnight. The dew point is 11, the skies are clear, and there is a light offshore flow.

I also think that we have a good chance of making a new low tomorrow morning in our journal entries, with our minimum of 22.6 in jeopardy.

The temperature as of 5:15 was 32.7 at our house. Freezing temperatures shortly before sunset? I think by sunset!!


The record low max for Savannah and Charleston on this date is 31 degrees set back in 1970 - no record set, but still about 25 degrees below normal. The high today in CHS was 37.
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2324. jipmg
the sun is going down, and there is a sheet of rain over all of South florida..

I hope the temperature dips into the 30s soon.. and brings snow!!
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2321. Patrap
The Northern Gulf Coast is in Line for the System,,Fla included..

Comes Tuesday the Guidance should become clearer.



GFSx 10-day Loop


Friday 6pm CDT


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2320. bassis
18 deg in Dover NH
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2319. 882MB
Hey everyone,GFS and ECMWF models are continuing to show a very strong H5 CUTOFF LOW moving over northern mexico causing cyclogenesis in the central gulf, now even the CMC,NOGAPS, and UKMET are showing this low, kind of reminds me of the SUPERSTORM OF 1993, looks like FLORIDA could be in for a very ACTIVE SEVERE WEATHER OUTBREAK, anyone have opinions?
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2318. jipmg
Quoting BahaHurican:
Afternoon, everybody.

IT'S SNOWING!!!!!

Ok, that's not true in Nassau, Bahamas, but we are having one of those rare daytime precipitation events, which would be snow if we were further north..... lol

It started to rain shortly before 3 p.m., and temperatures have dropped almost 10 degrees from our 1 p.m. high of 75 degrees. The weather was quite acceptable here yesterday, with the forecast warm up happening one day later than expected. I shall watch with interest to see if we plummet to an overnight temp lower than the 57 degrees recorded this morning.....

How's your weather?


raining, at 42 in miami
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2317. Patrap
GOM NEXSAT Viz still
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
Afternoon, everybody.

IT'S SNOWING!!!!!

Ok, that's not true in Nassau, Bahamas, but we are having one of those rare daytime precipitation events, which would be snow if we were further north..... lol

It started to rain shortly before 3 p.m., and temperatures have dropped almost 10 degrees from our 1 p.m. high of 75 degrees. The weather was quite acceptable here yesterday, with the forecast warm up happening one day later than expected. I shall watch with interest to see if we plummet to an overnight temp lower than the 57 degrees recorded this morning.....

How's your weather?
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2315. IKE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
315 PM CST SAT JAN 9 2010

.DISCUSSION...

A TEMPERATURE FORECAST THIS PACKAGE AS MODELS KEEP A DRY AIR MASS
OVER THE CENTRAL GULF COAST REGION UNTIL THE END OF NEXT WEEK. IT
DOES APPEAR THE SURGE OF ARCTIC AIR HAS PEAKED AND WE WILL START A
SLOW WARMING TREND ON SUNDAY. DUE TO THE DRY AIR MASS AND VERY
COLD GROUND TEMPERATURES...LOWS THE NEXT TWO MORNINGS WILL BE IN
THE MIDDLE TEENS...SO HARD FREEZE WATCHES/WARNINGS WILL CONTINUE
THROUGH MONDAY. TEMPERATURES WILL REBOUND NICELY ON MONDAY AS LOW
LEVEL FLOW BECOMES WESTERLY AHEAD OF NEXT SHORT WAVE TROF. HIGHS IN
THE 40S AND LOWER 50S WILL SEEM DOWN RIGHT BALMY AFTER THE FRIGID
READINGS OVER THE PAST SEVERAL DAYS. THERE MAY BE ENOUGH LOW LEVEL
MOISTURE WITH THIS SYSTEM FOR SOME FLURRIES MONDAY NIGHT AND EARLY
TUESDAY...BUT WILL HOLD OFF INCLUDING IN THE FORECAST AT THIS
TIME. LOWS ON TUESDAY MORNING MAY BE ON THE LOW SIDE IF COLD AIR
DOES NOT ARRIVE QUICK ENOUGH. THIS SHOT OF RE-ENFORCING AIR WILL
NOT BE AS STRONG AS PREVIOUS ONES AND IT WILL MAINLY JUST DELAY
WARMING TREND BY ONE DAY.

UPPER RIDGE BUILDS QUICKLY OVER ALABAMA ON WEDNESDAY AS UPPER FLOW
UNDERGOES A SIGNIFICANT SHIFT TO A MORE ZONAL PATTERN. THIS WILL
ALLOW TEMPERATURES TO WARM INTO THE 50S BY WEDNESDAY AND THURSDAY
...WITH EVEN SOME 60S ACROSS SOUTHERN COUNTIES. DIGGING SHORT
WAVE TROF OVER THE SOUTHWEST UNITED STATES WILL KEEP DEEPER
MOISTURE TO THE WEST OF ALABAMA THROUGH THURSDAY...BUT AN ACTIVE
PATTERN NEXT WEEKEND ACROSS THE SOUTHERN UNITED STATES WILL BRING
A GOOD DOSE OF RAIN TO ALABAMA.
Member Since: 9 juin 2005 Posts: 23 Comments: 37858
Temp down 2 degrees in a half hour 38.1 in SWFL
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2313. KEEPEROFTHEGATE (Mod)
Quoting unf97:
36.4 degrees currently at 4:30 p.m. The sun has come out now, but too late to warm us up here in Jax. Probably seeing the max temps occurring right now.

The sun sets about one hour from now, and it will be below freezing here by about 6:30 this evening.

Frigid night ahead!

welcome to the meat locker
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2312. KEEPEROFTHEGATE (Mod)
Quoting NRAamy:
My Local Weather:

John Wayne-Orange County, California

72 °F

Mostly Cloudy


:)
you could sell tickets to that
Quoting charlottefl:
I'm wondering if they are going to issue some type of warning about ice, especially with all this rain on the roads, and the freezing temperatures tonight.
that would be interesting a flash freeze warning for fla
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2311. unf97
36.4 degrees currently at 4:30 p.m. The sun has come out now, but too late to warm us up here in Jax. Probably seeing the max temps occurring right now.

The sun sets about one hour from now, and it will be below freezing here by about 6:30 this evening.

Frigid night ahead!

Member Since: 25 septembre 2007 Posts: 0 Comments: 1193
I'm wondering if they are going to issue some type of warning about ice, especially with all this rain on the roads, and the freezing temperatures tonight.
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I know this weather East of the Rockies is very brutal. I know this isn't any consolation, but Europe is still getting hammered, all the way to the French Rivera, Link below to article:

Link
Member Since: 25 août 2009 Posts: 20 Comments: 6785
2308. IKE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
159 PM EST SAT JAN 9 2010

...FREEZE WARNING AND WIND CHILL WARNING ALL AREAS TONIGHT
INTO SUNDAY MORNING...

.DISCUSSION...IS THIS FLORIDA?! IT`S A RAW, MISERABLE DAY WITH
TEMPS CONTINUING STEADY THIS AFTERNOON...RANGING FROM THE UPPER
30S LAKE REGION TO THE L/M 40S ELSEWHERE. OBSERVATIONS ARE RUNNING
BELOW GFS MODEL GUIDANCE...AND MORE IN LINE WITH THE NAM...SO HAVE
LEANED IN THE NAM`S COLDER DIRECTION. AREAS NEAR LAKE OKEECHOBEE
ARE ONLY ABOUT 7-8F FROM FREEZING ALREADY...WITH THE METROPOLITAN
AREAS 9-13F FROM FREEZING AT THIS WRITING. SO WITH SUCH A COLD
START...IT`S NOT GOING TO TAKE A HUGE DROP IN TEMPS TO HIT
FREEZING. AM EXPECTING LOWS TONIGHT TO FALL INTO THE 25-30F RANGE
OVER THE INTERIOR TO THE L/M 30S ALONG THE COASTS. FOR THIS
REASON...A FREEZE WARNING HAS BEEN ISSUED FOR ALL OF MAINLAND
SOUTH FL.

RECORD LOWS ARE POSSIBLE TONIGHT. HERE ARE THE RECORD LOWS FOR
SUNDAY 1/10:

WEST PALM BEACH...29 IN 1970
FT. LAUDERDALE...32 IN 1970
MIAMI...35 IN 1970
NAPLES...32 IN 1970

DANGEROUSLY COLD WIND CHILLS...A RARITY FOR SOUTH FL...WILL OCCUR
TONIGHT WITH WIND CHILLS DROPPING INTO THE 20S ALL THE WAY TO THE
COASTS. EVEN UPPER TEEN-DEGREE WIND CHILL READINGS ARE EXPECTED
OVER PORTIONS OF THE INTERIOR OVERNIGHT...ESPECIALLY ACROSS THE
LAKE REGION. DUE TO THESE EXTREMELY LOW WIND CHILLS FOR SOUTH
FL...A WIND CHILL WARNING HAS BEEN ISSUED FOR ALL AREAS
TONIGHT/SUNDAY MORNING.

THE CLOUDS/LIGHT RAIN AND DRIZZLE WILL DECREASE FROM NORTH TO
SOUTH THIS EVENING. NEED TO MENTION THE FACT THAT THERE HAS BEEN SOME
SLEET ACROSS PORTIONS OF CENTRAL FLORIDA ESPECIALLY ALONG AND
NORTH OF TAMPA TO ORLANDO. FORECAST SOUNDINGS SHOWS WET BULB ZERO
HEIGHTS CRASHING TO BELOW 1 K FT ACROSS THE LAKE REGION BY 00Z
THIS EVENING. IT IS GOING TO END UP BEING A RACE BETWEEN THE COLD
AIR AND ENDING PRECIP. THE PRECIP LIKELY WILL END BEFORE IT GETS
COLD ENOUGH TO SUPPORT ANYTHING MORE THAN RAIN ACROSS THE SERVICE
AREA. HOWEVER...AS HAS BEEN MENTIONED THE PREVIOUS FEW
DAYS...THERE IS A REMOTE POSSIBILITY OF A LITTLE SLEET MIXING IN
WITH THE LIGHT RAIN EARLY THIS EVENING ON THE BACK SIDE OF THE
PRECIP SHIELD...MAINLY NORTH OF AN EVERGLADES CITY TO WEST PALM
BEACH LINE. THE PROBABILITY OF THIS OCCURRING IS LOW ENOUGH TO
CONTINUE TO EXCLUDE THIS MENTION IN THE OFFICIAL FORECAST...AND IF
IT OCCURRED IT WOULD HAVE NO ADVERSE IMPACTS. IT`S CRAZY TO EVEN
HAVE TO DISCUSS THIS IN SOUTH FLORIDA!

HIGHS TOMORROW WILL LIKELY STRUGGLE...AND HAVE FOLLOWED ALONG WITH
THE NAM12 DEPICTION OF HIGH TEMPS TOMORROW. EXPECT HIGHS AROUND 50
EXCEPT LOWER 50S SE COAST.

ANOTHER FREEZE IS POSSIBLE TOMORROW NIGHT AS THE ARCTIC HIGH
SETTLES CLOSER TO THE AREA OVER THE SE STATES. THIS WILL ALLOW FOR
THE POSSIBILITY OF ANOTHER FREEZE. A FREEZE WATCH CONTINUES IN
EFFECT FOR ALL BUT PORTIONS OF THE EAST COAST METRO AREAS.

A WARMING TREND WILL FINALLY TAKE PLACE NEXT WEEK WITH TEMPS
RETURNING BACK TO NORMAL BY LATE IN THE WEEK.
Member Since: 9 juin 2005 Posts: 23 Comments: 37858
Quoting NRAamy:
you guys wanna know how hot it is here today?


;)


NO!!!!!!...but I bet you tell us anyway - Skinny!
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34.3 here.
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2305. Patrap
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
2304. IKE
I'm at 39.9 right now.
Member Since: 9 juin 2005 Posts: 23 Comments: 37858
2303. NRAamy
My Local Weather:

John Wayne-Orange County, California

72 °F

Mostly Cloudy


:)
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2302. KEEPEROFTHEGATE (Mod)


ac on way to long over gom nice north flow

waitin on the return

and storm to follow
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2301. NRAamy
you guys wanna know how hot it is here today?


;)
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2300. IKE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
239 PM EST SAT JAN 9 2010

...VERY COLD TEMPERATURES TO CONTINUE INTO EARLY NEXT WEEK...

...WIND CHILL ADVISORY AND HARD FREEZE WARNING IN EFFECT FROM THIS
EVENING THROUGH MOST OF SUNDAY MORNING WITH A HARD FREEZE WATCH FOR
SUNDAY NIGHT...

.SYNOPSIS...THE LONG WAVE PATTERN REMAINS HIGHLY AMPLIFIED ACROSS
THE CONUS WITH A LARGE RIDGE OUT W AND A POSITIVELY TILTED TROUGH
OVER THE E. A STRONG SHORT WAVE IS DIVING INTO THE BASE OF THE
TROUGH OVER THE LOWER MS VALLEY. THE CENTER OF THE ARCTIC AIR MASS
IS CENTERED OVER THE MID AND UPPER MS VALLEY THIS AFTERNOON.
SATELLITE IMAGERY INDICATES THAT THE BACK EDGE OF THE UPPER LEVEL
CLOUD COVER CONTINUES TO WORK STEADILY TO THE SE AND SHOULD EXIT
DIXIE COUNTY BY AROUND 21Z. TEMPS HAVE BEEN VERY SLOW TO RISE UNDER
STRONG COLD ADVECTION. MANY AREAS TOOK UNTIL 18Z TO REACH THE
FREEZING MARK. WIND CHILL READINGS WERE STILL IN THE MID TO UPPER
20S AS OF 18Z.

&&

.SHORT TERM...TONIGHT THROUGH MON NIGHT.
THE LONG DURATION COLD WAVE OF 2010 WILL CONTINUE THROUGH THE SHORT
TERM PERIOD. FOR TONIGHT...THE SURFACE HIGH WILL SETTLE SWD INTO THE
OZARKS. THIS WILL KEEP STRONG COLD AIR ADVECTION GOING ALL NIGHT
ACROSS THE FORECAST AREA. MIN TEMPS WILL DROP INTO THE UPPER TEENS
TO LOWER 20S ACROSS THE REGION WITH LITTLE DIFFERENCE BETWEEN
URBAN...COASTAL AND RURAL AREAS. WE WILL ALSO SEE WIND CHILL
READINGS DROP INTO THE UPPER SINGLE DIGITS IN THE COLDEST AREAS BY
DAWN WITH LOWER TEENS ELSEWHERE. LIKE TODAY...IT COULD TAKE UNTIL
NOON FOR WIND CHILL READINGS TO RISE ABOVE THE ADVISORY CRITERIA OF
20 DEGREES. ACTUAL TEMPS WILL DROP BELOW FREEZING SHORTLY AFTER
SUNSET AND REMAIN BELOW UNTIL LATE MORNING. HIGH TEMPS ON SUN WILL
ONLY REACH THE LOWER 40S IN MOST AREAS. BY 12Z MON...THE CENTER OF
THE HIGH WILL BE OVER SRN MS. WINDS WILL BE MUCH LIGHTER AND MAY
ACTUALLY GO CALM. WIND CHILL WILL THEREFORE BE LESS OF A FACTOR.
THIS NIGHT WILL BE A TRANSITION NIGHT WITH COLD ADVECTION GIVING WAY
TO RADIATIONAL COOLING. DECIDED TO GO CLOSER TO THE COLDER MAV
NUMBERS TO ACCOUNT FOR THIS. WE WILL ALSO BEGIN TO SEE A BIT OF A
RANGE IN TEMPS IN LEON COUNTY WITH CENTRAL TLH ABOUT 4 DEGREES
WARMER THAN THE AIRPORT. WITH THE HIGH CENTER SETTLING TO THE N
CENTRAL GULF COAST...OUR LOW LEVEL WINDS WILL BACK TO WLY AND
HEIGHTS WILL BEGIN TO RISE AS THE SHORT WAVE EXITS QUICKLY TO THE E
OFF THE SE U.S. COAST. MAX TEMPS SHOULD TOP OUT WITHIN A DEGREE OR
TWO OF 50 EVERYWHERE ON MON. LOOK FOR ONE MORE HARD FREEZE MON NIGHT
WITH LOW TEMPS RANGING FROM THE UPPER TEENS IN THE COLDEST LOCATIONS
TO AROUND 30 AT THE COAST. THERE WILL BE AN EVEN GREATER RANGE IN
TEMPS ACROSS LEON THAN SUN NIGHT WITH UPPER TEENS AT THE AIRPORT AND
OUTLYING RURAL AREAS AND MID TO UPPER 20S IN CENTRAL TALLAHASSEE.
Member Since: 9 juin 2005 Posts: 23 Comments: 37858
2299. Patrap
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
Rain changes for next Fri and Sat are being shown already. 30% Friday night 50% on Sat.
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Quoting Patrap:


Doubt it,..in that Dec 89 freeze,the Lake froze out from the S. Shore froze between the rock out a few feet,so I'd say that was the record.


Well when under freezing for that long it makes sense.
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Quoting jipmg:


its raining in the low 40s =D


exactly. I've never seen it rain in Miami under 50. You are witnessing a rare event on it self.
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2295. Patrap
Quoting ElConando:


That near a record?


Doubt it,..in that Dec 89 freeze,the Lake froze out from the S. Shore,the rocks out a few feet,so I'd say that was the record.
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
2294. jipmg
Quoting ElConando:
Drak: I agree with that, usually do not have any percip in S Fla if its under 50 degrees.


its raining in the low 40s =D
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Quoting Patrap:
Lake Pontchartrain water temp now reading 40.0F

Wowsa,,..


That near a record?
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2292. Patrap


Miss River at Audubon now reading a water temp of 40.0F

Wowsa,,..

Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
2291. Patrap
Quoting StSimonsIslandGAGuy:
Patrap there was also a long cold wave in Jan 1962 when New Orleans had 2 consecutive days with highs in the 20s. Memphis, TN had their coldest high ever of 7 in that same cold wave.


Yeppars,,was almost 3 and my first real memories are of Mom bring snow inside for me to play with.
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
Drak: I agree with that, usually do not have any percip in S Fla if its under 50 degrees.
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2289. Patrap
A good site to add to ones bookmarks

The Gulf of Mexico Coastal Ocean Observing System (GCOOS)
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
2287. aquak9
SSS- yeah I had to laugh around 1pm, when it was 33º, and JAX NWS was still predicting 43º as our high.

Like THAT was gonna happen.

Mid-Twenties are cruel. Dewpoint of 10º? We'll remember today for a long time.
Member Since: 13 août 2005 Posts: 163 Comments: 25507
Quoting IKE:


I forgot he's in my avatar.

Yeah...that's the one that drowned.


sorry to hear that :(.
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2285. Patrap
Dec 23-26 1989 is the record here,..Dec 24th, 11f in NOLA.

Was under freezing for 69-71 Hours,major water outages ,fires and low pressure from the mains bursting
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628
2284. Drakoen
THE CLOUDS/LIGHT RAIN AND DRIZZLE WILL DECREASE FROM NORTH TO
SOUTH THIS EVENING. NEED TO MENTION THE FACT THAT THERE HAS BEEN SOME
SLEET ACROSS PORTIONS OF CENTRAL FLORIDA ESPECIALLY ALONG AND
NORTH OF TAMPA TO ORLANDO. FORECAST SOUNDINGS SHOWS WET BULB ZERO
HEIGHTS CRASHING TO BELOW 1 K FT ACROSS THE LAKE REGION BY 00Z
THIS EVENING. IT IS GOING TO END UP BEING A RACE BETWEEN THE COLD
AIR AND ENDING PRECIP. THE PRECIP LIKELY WILL END BEFORE IT GETS
COLD ENOUGH TO SUPPORT ANYTHING MORE THAN RAIN ACROSS THE SERVICE
AREA. HOWEVER...AS HAS BEEN MENTIONED THE PREVIOUS FEW
DAYS...THERE IS A REMOTE POSSIBILITY OF A LITTLE SLEET MIXING IN
WITH THE LIGHT RAIN EARLY THIS EVENING ON THE BACK SIDE OF THE
PRECIP SHIELD...MAINLY NORTH OF AN EVERGLADES CITY TO WEST PALM
BEACH LINE. THE PROBABILITY OF THIS OCCURRING IS LOW ENOUGH TO
CONTINUE TO EXCLUDE THIS MENTION IN THE OFFICIAL FORECAST...AND IF
IT OCCURRED IT WOULD HAVE NO ADVERSE IMPACTS. IT`S CRAZY TO EVEN
HAVE TO DISCUSS THIS IN SOUTH FLORIDA!


NWS Miami
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2283. IKE
Quoting IKE:


?


I forgot he's in my avatar.

Yeah...that's the one that drowned.
Member Since: 9 juin 2005 Posts: 23 Comments: 37858
Quoting IKE:


?


doggie as in that fluffy white thing in (sorry if I get this wrong) wifes hands.
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2279. Patrap



Picture of the December 23, 1989 Jacksonville snowfall
Member Since: 3 juillet 2005 Posts: 415 Comments: 125628

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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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