Friday, February 19, 2010

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 190959
SWOD48
SPC AC 190958

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0358 AM CST FRI FEB 19 2010

VALID 221200Z - 271200Z

...DISCUSSION...
THE MODEL DIFFERENCES EXHIBITED IN THE DAY 3 OUTLOOK BECOME EVEN
GREATER FROM DAY 4 /MON FEB 22/ AND BEYOND AS THE HIGH-AMPLITUDE
UPPER RIDGE ALONG THE COAST OF WRN NORTH AMERICA BREAKS DOWN. A LOW
SEVERE WEATHER THREAT IS POSSIBLE INVOF THE NERN GULF COAST DURING
THE FIRST HALF OF DAY 4...BUT IS NOT EXPECTED TO BE GREAT ENOUGH TO
INCLUDE AS A REGIONAL SEVERE WEATHER THREAT AREA. BEYOND DAY 4...
THE COMBINATION OF OFFSHORE FLOW INTO THE GULF BASIN MAINTAINING A
STABLE AIR MASS ACROSS INLAND AREAS AND DIFFERENCES IN TIMING OF
SYSTEMS AFFECTING THIS REGION RESULT IN POTENTIAL TOO LOW FOR A
REGIONAL SEVERE WEATHER THREAT THROUGH DAY 8 /FRI FEB 26/.

..PETERS.. 02/19/2010

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