SWOD48
SPC AC 100858
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0358 AM CDT THU MAY 10 2007
VALID 131200Z - 181200Z
..GREAT PLAINS AND UPPER MIDWEST...
MEDIUM RANGE MODEL FORECASTS ARE IN GENERAL AGREEMENT EARLY IN THE
PERIOD WITH AN UPPER-LEVEL RIDGE IN PLACE ACROSS THE PLAINS STATES.
THE BELT OF STRONGER MID-LEVEL FLOW IS FORECAST TO REMAIN IN THE NRN
PLAINS EARLY IN THE PERIOD. DIFFERENCES IN THE MODELS EMERGE EARLY
NEXT WEEK AS A SUBTLE UPPER-LEVEL TROUGH MOVES EWD ACROSS THE NRN
STATES. AT THE SFC DURING THE UPCOMING WEEK...A COLD FRONT WILL
LIKELY MOVE SWD INTO THE CNTRL PLAINS AND UPPER MIDWEST. MOISTURE
AND INSTABILITY SHOULD BE ADEQUATE FOR A SEVERE POTENTIAL ALONG THE
BOUNDARY EACH AFTERNOON AND EVENING. HOWEVER...THE UPPER-LEVEL
PATTERN SHOULD RESULT IN WEAK MID-LEVEL FLOW ACROSS THE CNTRL PLAINS
SUGGESTING THE SEVERE THREAT WILL REMAIN ISOLATED. IT IS TOO EARLY
TO FORECAST WHERE ANY ENHANCED SEVERE THREATS MAY EXIST IN THE DAY 4
TO 8 PERIOD.
.BROYLES.. 05/10/2007
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