Saying goodnight…
753
ACUS11 KWNS 110446
SWOMCD
SPC MCD 110445
ALZ000-FLZ000-110615-
MESOSCALE DISCUSSION 0792
NWS STORM PREDICTION CENTER NORMAN OK
1145 PM CDT SUN MAY 10 2009
AREAS AFFECTED…SRN AL/FL PANHANDLE
CONCERNING…SEVERE THUNDERSTORM WATCH 287…
VALID 110445Z – 110615Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 287
CONTINUES.
BUT…THE REMAINING VALID PORTION OF WW WILL PROBABLY BE ALLOWED TO
EXPIRE AS SCHEDULED AT 06Z.
A CONVECTIVELY INDUCED OR ENHANCED WESTERLY MID-LEVEL SPEED MAXIMUM
/AROUND 30-40 KT/…CONTINUES TO NOSE EAST SOUTHEASTWARD INTO
SOUTHERN ALABAMA. THIS IS ACCOMPANIED BY REMNANT MESOSCALE
CONVECTIVE SYSTEM…WHICH STILL APPEARS TO POSSESS A FEW FAIRLY
VIGOROUS UPDRAFTS ALONG THE LEADING EDGE OF ITS BROADENING COLD
SURFACE OUTFLOW. HOWEVER…ONGOING WEAKENING/STABILIZING TRENDS
SUGGEST THAT THE RISK FOR SEVERE STORMS IS DIMINISHING. AND…WITH
LOW-LEVEL FLOW FIELDS REMAINING RATHER WEAK ACROSS THE CENTRAL/
EASTERN GULF COAST STATES OVERNIGHT…THIS SHOULD REMAIN THE CASE AS
ACTIVITY SPREADS EAST OF THE INTERSTATE 65 CORRIDOR…TO THE SOUTH
OF MONTGOMERY…BY 06-07Z.
..KERR.. 05/11/2009
…PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT…
ATTN…WFO…TAE…BMX…MOB…
