Monday, September 3, 2007

DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 030558
SWODY1
SPC AC 030557

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1257 AM CDT MON SEP 03 2007

VALID 031200Z - 041200Z

..NO SVR TSTM AREAS FORECAST...

..SYNOPSIS...
UPPER PATTERN IS FORECAST TO REMAIN FAIRLY NONDESCRIPT ACROSS MUCH
OF THE CONUS...WITH THE EXCEPTION OF THE NERN U.S. WHICH WILL REMAIN
UNDER THE INFLUENCE OF AN ERN NOAM TROUGH...AND THE PAC NW -- WHERE
A TROUGH WILL APPROACH THE COAST LATE.

..NRN MN INTO THE WRN UPPER GREAT LAKES REGION...
ELEVATED THUNDERSTORMS ARE FORECAST TO DEVELOP DURING THE EVENING
ACROSS PARTS OF THE UPPER MS VALLEY/WRN UPPER GREAT LAKES
REGION...AS LOW-LEVEL JET DEVELOPS ALONG WITH ASSOCIATED ZONE OF
WARM ADVECTION. STORMS SHOULD REMAIN FOR THE MOST PART CONFINED TO
THE NRN HALF OF MN/NRN WI/UPPER MI...N OF A W-E WARM FRONT FORECAST
TO LIE ACROSS THIS REGION.

WHILE INSTABILITY SHOULD REMAIN LIMITED...AMPLE SHEAR FOR ORGANIZED
STORMS -- PARTICULARLY OVER NRN MN AND ADJACENT PARTS OF NRN WI/WRN
UPPER MI -- MAY SUPPORT A LIMITED THREAT FOR HAIL. THUS...WILL
MAINTAIN 5% PROBABILITY FOR HAIL ACROSS THIS REGION.

.GOSS.. 09/03/2007

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