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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Well I had more development in region 2. North of 20N and west of 50W. i'll post the graphic this evening.
it looks like a surface trough to me. Due the inflow created by 90L winds are converging in a sporadic fashion.
No.
If I didn't know any better, I wouldv'e thought I was getting hit by a hurricane or a tornado.
NATIONAL WEATHER SERVICE MELBOURNE FL
434 PM EDT MON MAY 25 2009
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN ST. LUCIE COUNTY IN FLORIDA...
* UNTIL 515 PM EDT.
* AT 434 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER SOUTHWEST
ST. LUCIE COUNTY...OR 13 MILES EAST OF OKEECHOBEE...MOVING SOUTH
AT 10 MPH.
* THE TORNADO WILL BE NEAR...
RURAL SOUTHWESTERN ST. LUCIE COUNTY THROUGH 5 PM EDT
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR...IN AN INTERIOR ROOM SUCH AS A BATHROOM OR CLOSET.
KEEP AWAY FROM WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.
EVACUATE MOBILE HOMES OR VEHICLES FOR MORE SUBSTANTIAL SHELTER. IF NO
SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS. ABANDON YOUR VEHICLE IF THE
TORNADO IS NEARBY.
Most signs point to no.
99.99999999999999% NO
The only place to look for development right now is the Bahamas blob.
Stormchaser2007: What do you use for your radar in the above post? Looks nice!
tropical wave
This footage was taken Right after the eyewall came onshore. Okay it wasn't an eyewall but there was no debris at all untill it made landfall and the surge came up very fast. I would estimate a good 5 FT in about 20 mins . Winds were gusting well over 50 mph at that time and we had sustained winds in the 30mph range before landfall . This storm is one that should be upgraded down the road by the NHC and I hope that this video and some of my others will help with there decision. Problem is there is not much footage from this system but bouy data and weather station data indicate this was no doubt at least tropical depression if not a tropical storm
Link
North/Northeast
on your map, why is there the number 16 by the bahamas with a line drawn straight to wilmington nc?????
Mean sea level pressure is 1016mb along that line.
Yea it showed up well last night on 315K PV
Watching the Bahamas
Isobars 1016
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
358 PM CDT MON MAY 25 2009
THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL CALHOUN COUNTY IN SOUTH TEXAS...
* UNTIL 500 PM CDT
* AT 357 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
SOUTHWEST OF MAGNOLIA BEACH...OR 7 MILES NORTHEAST OF SEADRIFT...
MOVING SOUTHEAST AT 10 MPH.
* THE TORNADO WILL BE NEAR...
ALONG HIGHWAY 185 BETWEEN SEADRIFT AND PORT OCONNOR BY 500 PM
CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
hurricane 2 killed 8000 people.... 1930
and all of you know about Andrew
I would guess it would.
Corpus Christi, Base Reflectivity 0.50 Degree Elevation Range 124 NMI
Storm E0
59 dBZ 37,000 ft.
Vil 45kg/ 100% chance 0.75in[Hail]
Mvmnt 16 knots NNW (327)
I think so, local patterns yes, not basin wide. Will be hard to tell though, chicken/egg?
Two cold fronts (seabreeze) playing chicken.
Bangladesh: Cyclone Aila - Sit.report no. 69
Source: Network for Information, Response and Preparedness Activities on Disaster
Date: 25 May 2009
Dhaka, May 25, 2009
Event Title: Cyclone AILA
Date and Time of onset: 25.05.09 (intensified and crossing north northwest towards West Bengal)
Location of the disaster: Bangladesh, 20°22'N-26°36'N, 87°48'E-92°41'E,
Event Update:
1. Till now, coastal regions are experiencing continuous raining with gusty winds.
2. According to RTV news at 6.30pm, AILA has just moved northwest direction.
3. Deaths of 7 people have been reported till now. (2 from Nijum Dwip and 2 from Bayar Char of Noakhali district, and 3 from other districts).
4. Around 2000 fishers and Bawali (resource collector from Sundarbans) are trapped in the Sundarbans.
5. Vast area of Pirojpur district has been inundated because the Beri bund has been collapsed by the tidal surge.
6. 15 houses and 10 shops fully damaged in St Martin Island.
7. 7 unions of Ujirpur upazila of Barial district have been inundated.
Reporting from:
NIRAPAD Secretariat,
Dhaka, Bangladesh
Model Cycle: 2009052518
North America: Model Tracks for Mid-Latitude Cyclones
18Z NAM
Viewing: 1051 - 1101
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