SWODY2
SPC AC 211727
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1227 PM CDT SAT APR 21 2012
VALID 221200Z - 231200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
AN UPPER LOW WILL BE SITUATED OVER CNTRL FL SUN MORNING...AND WILL
QUICKLY MOVE EWD OFFSHORE BY 18Z. THIS WILL OCCUR AHEAD OF A LARGER
AMPLIFYING TROUGH ACROSS THE OH/TN VALLEYS WITH AN 80+ KT MIDLEVEL
SPEED MAX DIVING SEWD ACROSS MS AL AND GA.
AT THE SURFACE...LOW PRESSURE WILL DEEPEN NEAR THE NC COAST WITH A
COLD FRONT EXTENDING SWWD ACROSS NRN FL BY MIDDAY. SHOWERS AND
STORMS OVER FL SHOULD GENERALLY BE WEAK AND MOVE OFFSHORE WITH THE
UPPER LOW PASSAGE...WITH A LINGERING STORM THREAT OVER ERN NC EARLY.
...ERN NC...
MODELS INDICATE THE SURFACE LOW WILL TRACK OVER FAR ERN NC OR EVEN
JUST OFFSHORE WITH A PLUME OF MID 60S F DEWPOINTS...MARGINAL
INSTABILITY AND LOW LEVEL VEERING WIND PROFILES. WITHIN A LARGER
AREA OF RAIN...A FEW EMBEDDED AREAS OF ROTATION WILL BE
POSSIBLE...AND A BRIEF TORNADO CANNOT BE RULED OUT WITH THE THREAT
ENDING BY EARLY AFTERNOON AS THE LOW LIFTS NEWD.
...FL...
AHEAD OF THE COLD FRONT...A FEW SHOWERS AND STORMS MAY BE ONGOING
EARLY. SHEAR OVER THE SRN PART OF THE STATE WOULD FAVOR SOME WIND
THREAT...HOWEVER...THIS ACTIVITY SHOULD DEPART RELATIVELY QUICKLY
WITH THE UPPER LOW MOVING RAPIDLY NEWD.
..JEWELL.. 04/21/2012
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