Wednesday, May 4, 2011

DAY3SVR: Nws Storm Prediction Center Norman Ok

ACUS03 KWNS 040633
SWODY3
SPC AC 040633

DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0133 AM CDT WED MAY 04 2011

VALID 061200Z - 071200Z

...SYNOPSIS/DISCUSSION...
A NWLY FLOW REGIME WILL EXIST ACROSS THE CONUS WITH MULTIPLE
EMBEDDED SHORTWAVE TROUGHS. HIGH PRESSURE WILL EXIST OVER THE SERN
STATES IN THE WAKE OF ONE TROUGH WITH AXIS OVER THE MID ATLANTIC
COAST AT 00Z. FARTHER W...A WEAK SURFACE TROUGH WILL FORM FROM THE
ERN DAKOTAS SWD INTO THE CNTRL HIGH PLAINS AS A WEAK LOW AMPLITUDE
TROUGH PROCEEDS SEWD ACROSS THE NRN PLAINS.

SOME LOW LEVEL MOISTURE WILL ATTEMPT TO RETURN NWD ACROSS COASTAL
GA/CAROLINAS WHERE A WEAK SURFACE TROUGH WILL EXIST BY AFTERNOON.
ALTHOUGH AMPLE DEEP LAYER SHEAR WILL EXIST ACROSS THIS AREA WITH THE
EXITING UPPER TROUGH...SEVERE WEATHER IS NOT EXPECTED DUE TO VERY
WEAK INSTABILITY. A GREATER CHANCE OF THUNDERSTORMS WILL EXIST OVER
THE FL PENINSULA WHERE MID 60S F DEWPOINTS WILL EXIST...BUT ANY
WIND/DOWNBURST THREAT SHOULD BE QUITE LOCALIZED AND NOT GREAT ENOUGH
FOR ANY PROBS THIS FAR OUT.

..JEWELL.. 05/04/2011

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