90L comes close to being the season's first named storm
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
Reader Comments
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The problem was with the GoToMyPC interface.
Everytime I disconnected, the encoder stopped running and the microphone cut out.
To solve the problem, I've set the inactivity disconnect for over 10 hours.
That should do it! :)
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.
I actually may have a shot at that 10 meter deal when deploying the remote weather station and live webcam during a TC landfall. That's only about 30 feet...say as high as a 3-story parking structure!
That also means that the 108.3 windspeed I measured on the 3rd Floor parking structure at the Hotel Galvez when I experienced Hurricane Ike is to be believed. Nice! :)
I.M.D. site: Link
Tropical Update for 2day
I believe the 108! There was a measurement taken @ Nassau Bay/Clear Lake at the Hilton @ 103. It's about 20 miles north of Galveston, so your 108 is totally believable!
Thanks 90L for sending a few showers my way. Just enoough for the yard to love!
ABNT20 KNHC 231732
TWOAT
SPECIAL TROPICAL WEATHER OUTLOOK
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 PM EDT SAT MAY 23 2009
FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...
SATELLITE IMAGERY...RADAR DATA...AND SURFACE OBSERVATIONS INDICATE
THAT THE AREA OF LOW PRESSURE THAT WAS OVER THE NORTH-CENTRAL GULF
OF MEXICO THIS MORNING HAS MOVED INLAND NEAR THE ALABAMA-MISSISSIPPI
BORDER. ALTHOUGH TROPICAL CYCLONE DEVELOPMENT IS NOT EXPECTED...
THIS SYSTEM IS LIKELY TO PRODUCE LOCALLY HEAVY RAINS OVER PORTIONS
OF THE SOUTHEASTERN UNITED STATES DURING THE NEXT DAY OR TWO. SEE
STATEMENTS FROM LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICES FOR
ADDITIONAL INFORMATION. THIS WILL BE THE LAST SPECIAL TROPICAL
WEATHER OUTLOOK ON THIS SYSTEM.
$$
FORECASTER PASCH/KIMBERLAIN
CYCLONE WARNINGS
Cyclone Warning For Indian Coast
R S M C Bulletin
Observed Track
Latest Satellite Imagery of Cyclone
Cyclone Track Prediction by QLM
Ocean State Forecast
Look at post 10, it has a link to the India Met Dep. Once there, click on cyclone page and then on cyclone warning or rsmc bulletin. Also Drak said something about models showing it blowing up in the last blog. Might be able to get link to those from him.
Time of issue: 1930 hours IST
Sub: Depression over west central Bay of Bengal and cyclone alert for West Bengal coast.
The depression over west central Bay of Bengal remained practically stationary and lay centred at 1730 hours IST of today, the 23rd May 2009 near lat. 16.50 N and long. 88.00 E, about 470 km south-southeast of Paradip, 600 km south of Sagar Island and 650 km south-southwest of Khepupara (Bangladesh). The system is likely to intensify further into a cyclonic storm and move in a near northerly direction and cross west Bengal-Bangladesh coast near 890 E (100 km east of Sagar Island) around 25th May 2009 evening.
Under its influence, rainfall at most places with scattered heavy to very heavy falls and isolated extremely heavy falls ( 25 cm) is likely to commence over Gangetic West Bengal and north coastal Orissa from tomorrow, the 24th May 2009 afternoon.
Gale wind speed reaching 65-75 kmph gusting to 85 kmph are likely to commence along and off West Bengal coast from tomorrow, the 24th May 2009 evening. Squally winds speed reaching 45-55 kmph gusting to 65 kmph are likely to commence along and off north Orissa coasts from tomorrow, the 24th May evening.
Sea condition will be high along and off West Bengal coast and rough to very rough along and off Orissa coast. Fishermen are advised not to venture into the sea along and off these coasts.
Next bulletin will be issued at 0130 hrs IST of tomorrow, the 24th May 2009
Wunderground won't usually put invests on the big map. Go to this site for current tracks and imagery.
It should be steered north by the monsoonal low over India, unfortunately right towards you in Bangladesh. It may be a formidable cyclone by the time it gets there according to the global models. It makes sense since conditions are favorable for development. We'll have to see how it organizes over the next 2 days.
They are very exclusive down here and cheap to foreigners. An exmaple here would be the St. Kitts Marriott Resort & The Royal Beach Casino. For more information you can visit here
Man with those sst's and 2 days at least over them, lets hope a 980 pressure is the lowest we see. Also, if it makes that western jog right before landfall Bangladesh is in for it big-time! Imo.
Thank you for the update and have a great memorial day weekend in Michigan.
Freaky.
GOM IR Loop
90L is still interesting. Looks to be wetting a lot of people before it goes away.
Severe weather all over the Globe, the past few days, with fire, flood and heatwaves.
Today at 11n 61w, Trinidad, it is 92F with 42% humidity.
Send some rain this way please. The ITCZ is nowhere to be seen........
Looks like Suriname and Guyana will get whatever rain is going that way. . .
It started moving fast, suns already out here in Mobile.
The Island is very dry. It has been a short dryseason, but intense. Last year was the same.
Crud!
StormSurgeon just to let you know I just got back from the West end of Dauphin Island and will be downloading Pictures of the "Flooding" with no burm there could not drive down to the end of it.... I sure hope this is not things to come this season....
Taco :0)
The ITCZ is very low for this time of year. Not expecting a much action in the Tropical Atlantic.
I'm watching to see how quickly these abnormal indicators iron themselves out. SSTs in the CAR are already rebounding towards summer norms. Maybe ITCZ will move north radically as we get closer to solstice.
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