Tuesday, September 1, 2009

DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 010848
SWOD48
SPC AC 010848

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0348 AM CDT TUE SEP 01 2009

VALID 041200Z - 091200Z

...POTENTIAL TOO LOW TO DELINEATE SEVERE THREAT AREA...

A LARGE SPREAD AMONG THE ENSEMBLES PERSISTS...AS DOES THE RUN TO RUN
VARIABILITY AMONG THE MEDIUM RANGE MODELS...CONCERNING THE LONGER
TERM LARGE-SCALE PATTERN EVOLUTION DOWNSTREAM OF THE STRONG ZONAL
UPPER JET NOW NOSING SOUTH OF THE ALEUTIANS. WHILE THE RISK FOR
SEVERE STORMS MAY NOT BE COMPLETELY NEGLIGIBLE ACROSS PARTS OF THE
PLAINS AND MISSISSIPPI VALLEY LATE THIS COMING WEEKEND INTO EARLY
NEXT WEEK...MOST SCENARIOS APPEAR TO SUGGEST THAT THE POTENTIAL FOR
AN ORGANIZED REGIONAL SEVERE WEATHER EVENT IS LOW.

..KERR.. 09/01/2009

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