Wednesday, October 22, 2008

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 220742
SWOD48
SPC AC 220742

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0242 AM CDT WED OCT 22 2008

VALID 251200Z - 301200Z

...DISCUSSION...
LARGE UPPER TROUGH IS FORECAST TO DRIFT SLOWLY EWD ACROSS THE ERN
U.S. THROUGH THE PERIOD...WHILE LATER IN THE PERIOD MODELS DIFFER ON
THE NEXT FEATURE CROSSING THE WRN U.S./WRN CANADA.

AS A SURFACE FRONT MOVES EWD -- AND EVENTUALLY OFF THE E COAST --
DAY 4 /SAT. OCT. 25/...A LOW-PROBABILITY SEVERE THREAT MAY EVOLVE
OVER THE CAROLINAS/VA VICINITY. HOWEVER...THREAT DOES NOT APPEAR
GREAT ENOUGH TO WARRANT THE ISSUANCE OF AN OUTLOOK AREA ATTM.

AFTER THIS FRONT MOVES OFFSHORE...COOLER/STABLE AIRMASS PREVAILING E
OF THE ROCKIES SHOULD PRECLUDE ANY SEVERE POTENTIAL THROUGH MOST --
IF NOT ALL -- OF THE REMAINDER OF THE PERIOD.

..GOSS.. 10/22/2008

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