The Economics and Social Benefits of NOAA Data and Products

No watches are valid as of Wed Nov 25 05:37:01 UTC 2009.

No Mesoscale Discussions are in effect as of Wed Nov 25 05:37:01 UTC 2009.

SPC 1200Z Day 1 Outlook

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1126 PM CST TUE NOV 24 2009

VALID 251200Z - 261200Z

...NO SVR TSTM AREAS FORECAST...

...FL...
A RATHER STRONG SOUTHERN STREAM SHORTWAVE TROUGH AND ASSOCIATED MID
LEVEL JET MAX OVER THE GULF OF MEXICO WILL OVERSPREAD THE FL
PENINSULA ON WEDNESDAY.  THIS WILL LEAD TO SCATTERED-NUMEROUS
SHOWERS AND THUNDERSTORMS OVER THE AREA THROUGH LATE
AFTERNOON...WITH A DECREASING TREND FROM WEST TO EAST BY DARK. 
MODEL GUIDANCE IS IN GENERAL AGREEMENT THAT LOW LEVEL VERTICAL SHEAR
WILL BE MARGINAL FOR ORGANIZED/ROTATING STORMS THROUGH THE PERIOD. 
HOWEVER...IT APPEARS THE MOST LIKELY TIME FOR STRONG STORMS WILL BE

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SPC 0700Z Day 2 Outlook

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1135 PM CST TUE NOV 24 2009

VALID 261200Z - 271200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
THANKSGIVING WEATHER INTEREST WILL BE ON THE EVOLUTION OF A
DEEP/COLD TROUGH OVER THE ERN PARTS OF THE COUNTRY.  THIS TROUGH
WILL BECOME NEGATIVELY-TILTED OVER THE UPR OH VLY THURSDAY AFTN AND
THEN TRANSLATE ENE INTO THE MID-ATLC REGION...ACCOMPANIED BY
180-METER/12-HR HEIGHT FALLS.  NWLY FLOW IN WAKE OF THE SYSTEM WILL
FORCE A CDFNT WELL S INTO THE GULF OF MEXICO AND FL STRAITS BY
THURSDAY NIGHT.

UPSTREAM...A NEW UPR TROUGH WILL ARRIVE ONSHORE THE PAC NW WHILE A
SUB-TROPICAL DISTURBANCE MIGRATES OVER NRN MEXICO. 

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