90L comes close to being the season's first named storm

By: Dr. Jeff Masters , 5:30 PM GMT on May 23, 2009

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The large extratropical storm (90L) that has been pounding Florida, the Bahamas, and Haiti this week with heavy rain and high surf has moved ashore over Mississippi. Last night and this morning, the storm put on an impressive burst of heavy thunderstorm activity and came close to becoming a subtropical or tropical depression. Winds at the Fort Morgan, AL station were 44 mph, gusting to 52 mph, and winds at Dauphin Island, Alabama coastal station were sustained at 39 mph, gusting to 48 mph at between 8am and 10am EDT this morning. While these winds were in excess of the 39 mph threshold of tropical storm force, both measurements were taken at elevations higher than the international wind measurement standard of ten meters, so the top measured winds of 90L were actually slightly less than tropical storm force. Had 90L spent another six hours over water, it very likely would have been declared a tropical/subtropical depression/storm.

The circulation around 90L continues to mean rain for Florida, but the rains will be lessening today. Rainfall amounts as high as 28 inches were measured this week in Northern Florida at Brunnell. Rainfall amounts of 2 - 3 inches have accumulated along the Alabama, Mississippi, and Florida Panhandle coasts from 90L so far (Figure 1).


Figure 1. Estimated rainfall from the Mobile, AL radar.

There are no other threat areas in the Atlantic to discuss today, so have a great weekend, and I'll have a new blog post by Tuesday.

Jeff Masters

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Quoting Patrap:
AOI Atlantic IR Loop


Looks like the old 90L is sucking all of the moisture out of it. it's trying to break away
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Member Since: July 24, 2005 Posts: 407 Comments: 19076


Lots of rain for a good deal of the States.
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1145. Patrap
AOI Atlantic IR Loop

Member Since: July 3, 2005 Posts: 426 Comments: 128630
Member Since: July 24, 2005 Posts: 407 Comments: 19076
1143. KEEPEROFTHEGATE (Mod)
Quoting Weather456:
Arms of ex-90L

yeah 456 90l was the kick start for sure and its lifting a big mass of warm tropical air nortward over eastern half of north america once this passes we should really see the summer heat and humity kick in if ya look even further out over west coast NA everthing in the pacfic is pushing ne towards the poles the seasonal shift is in full swing and will get more interesting as we move along summers almost here
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looks like Pacman
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25n 73W looks like the CoC trying to develop.
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Member Since: July 24, 2005 Posts: 407 Comments: 19076
There is a wind shift south of the area of consolidation.
Link
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1138. KEEPEROFTHEGATE (Mod)
latest 500 mb winds vorticity RUC 2115 utc
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Arms of ex-90L

Member Since: July 24, 2005 Posts: 407 Comments: 19076
Wow if TS ana forms from this low in Bahamas then she proves us all wrong on the dates we think the next storm will form.I remember no one said one storm will form in May.lol
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1134. K8eCane
maybe i should pull a night shift tonite
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1133. Drakoen
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Quoting Opal95:
I think about late this week into early next week, we will have a 60 mph TS Ana.
yeah 60mph IF it follows the gulf stream
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1131. Drakoen
Consolidated area of convection near the Bahamas:
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Quoting Opal95:
I think about late this week into early next week, we will have a 60 mph TS Ana.

I agree.
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Quoting HadesGodWyvern:
India Meteorological Department
Tropical Cyclone Warning Number SEVENTEEN
CYCLONIC STORM AILA (BOB02-2009)
23:30 PM IST May 25 2009
===============================

Subject: Cyclonic storm over Gangetic West Bengal and adjoining Bangladesh.

At 18:00 PM UTC, Cyclonic Storm Aila over Gangetic West Bengal Bengal moved further in nearly northerly direction and lay centered over Gangetic West Bengal and adjoining Bangladesh about 100 kms north of Kolkata. The system is likely to move in a near northerly direction and weaken gradually.

Under its influence, rainfall at most places with heavy to very heavy falls at a few places and isolated extremely heavy falls (%u226525 cm) is likely over Gangetic West Bengal during next 24 hours and over Sub-Himalayan West Bengal & Sikkim during next 48 hours.

Rain/thundershower is also likely at most places over Assam and Meghalaya with isolated heavy to very heavy fall during next 48 hours

Squally wind speed reaching 25-30 knots gusting 35 knots likely along and off West Bengal and north Orissa coasts during next 12 hours.

Sea condition will be rough to very rough along and off West Bengal and north Orissa coasts during next 12 hours. Fishermen are advised not to venture into sea during next 12 hours.

This has the latest info on the death toll from Aila: Link
Right now, the death toll is 45, with over 1000 missing.
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Hi-resolution visible:

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1125. HadesGodWyvern (Mod)
India Meteorological Department
Tropical Cyclone Warning Number SEVENTEEN
CYCLONIC STORM AILA (BOB02-2009)
23:30 PM IST May 25 2009
===============================

Subject: Cyclonic storm over Gangetic West Bengal and adjoining Bangladesh.

At 18:00 PM UTC, Cyclonic Storm Aila over Gangetic West Bengal Bengal moved further in nearly northerly direction and lay centered over Gangetic West Bengal and adjoining Bangladesh about 100 kms north of Kolkata. The system is likely to move in a near northerly direction and weaken gradually.

Under its influence, rainfall at most places with heavy to very heavy falls at a few places and isolated extremely heavy falls (≥25 cm) is likely over Gangetic West Bengal during next 24 hours and over Sub-Himalayan West Bengal & Sikkim during next 48 hours.

Rain/thundershower is also likely at most places over Assam and Meghalaya with isolated heavy to very heavy fall during next 48 hours

Squally wind speed reaching 25-30 knots gusting 35 knots likely along and off West Bengal and north Orissa coasts during next 12 hours.

Sea condition will be rough to very rough along and off West Bengal and north Orissa coasts during next 12 hours. Fishermen are advised not to venture into sea during next 12 hours.
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1124. KEEPEROFTHEGATE (Mod)
Quoting melwerle:
Geez...I thought things were supposed to stay quiet for a bit. So much for that idea.


the tropical push is on and we owe it to our 90l for kicking it in as it pulls itself nw then n ne the past few days its pullin all the tropical air northward from east gom carb sw tropical atlantic if you check out an anim. conus sat image u can clearly see this feature
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Someone had said that QuikSCAT miss the area this morning but it did not miss it, at the time it was processing it.

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Geez...I thought things were supposed to stay quiet for a bit. So much for that idea.


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Quoting Weather456:
hmm


Hmm...probably because it's expected to track along the Gulf Stream, warm enough in places for intensification. Also notice how the cone includes New York!
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Quoting K8eCane:

hey!

really close to the airport


Cool! Porter's Neck Area here.
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1119. KEEPEROFTHEGATE (Mod)
456 invest and its a tropical storm once it gets to nc offshore then pulls itself ne after that looks like we got something to watch
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Quoting Weather456:


doesnt seem so. Unofficial


Ah alright thanks. I wasn't sure....I haven't been on for quite a few hours.
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Quoting Stormchaser2007:


Invest?


doesnt seem so. Unofficial
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1116. K8eCane
Quoting natrwalkn:


Me too! I'm in Wilmington. Where are you?

hey!

really close to the airport
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Quoting presslord:
I really wish my friend KEEPEROFTHEGATE was KEEPEROFHISMOUTHSHUT with that kinda info....geeez....


lol
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Quoting Weather456:
hmm



Invest?
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Wonder what the difference is between the 18km and the 6km? Link

Note, im pretty sure the 6km is still loading.
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Quoting K8eCane:
LOL patrap
I'm just barely in the cone


Me too! I'm in Wilmington. Where are you?
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hmm

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1110. K8eCane
LOL patrap
I'm just barely in the cone
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Cyclone Aila update: at least 45 dead, over 1000 missing.
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1108. Patrap
Quoting K8eCane:
darn
im in the cone



Ack..ack..ack

Member Since: July 3, 2005 Posts: 426 Comments: 128630
suits me if this one goes just swims around out there...don't wanna fool with the slop this week....
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OK..ya get a few points for that...
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1105. K8eCane
darn
im in the cone
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Quoting KEEPEROFTHEGATE:
lol


Keeper, you are responsible for securing WU's gate from sly trolls this year lol
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Lake O getting a good fill right now , keep it up , looking good.
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FSU mm5 cone- Link

"Disclaimer: This forecast is unofficial, experimental, and not meant to replace NHC official forecasts. Please refer to the NHC and local emergency officials for official forecasts when making a decision."
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1100. KEEPEROFTHEGATE (Mod)
lol
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1099. KEEPEROFTHEGATE (Mod)
well at least i did'nt say the caroliners
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.