SWOD48
SPC AC 230815
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0315 AM CDT FRI SEP 23 2011
VALID 261200Z - 011200Z
...DISCUSSION...
LATEST MEDIUM RANGE MODEL GUIDANCE IS IN SOME DISAGREEMENT REGARDING
THE SPEED/MOVEMENT OF THE OH VALLEY UPPER LOW. GFS IS A BIT FASTER
EJECTING THIS SYSTEM THAN THE ECMWF...APPARENTLY DUE TO STRONGER MID
LEVEL FLOW THAT DIGS INTO THE UPPER GREAT LAKES REGION. DESPITE THE
TIMING DIFFERENCES OF THESE TWO MODELS...THERMODYNAMIC PROFILES
DOWNSTREAM SHOULD REMAIN A BIT TOO MEAGER TO WARRANT AN ORGANIZED
SEVERE THREAT THIS PERIOD.
..DARROW.. 09/23/2011
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