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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
ATTN...WFO...TAE...BMX...MOB...
LAT...LON 32618720 32528647 32358563 31938524 31398518 31108545
30958722 31048779 31368769 31808745 32198731 32338728
32618720
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