SWOD48
SPC AC 190850
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0350 AM CDT MON APR 19 2010
VALID 221200Z - 271200Z
...DISCUSSION...
MEDIUM-RANGE MODEL AGREEMENT CONTINUES TO DETERIORATE...WITH THE GFS
NOW ROUGHLY 24 HOURS FASTER IN BRINGING THE LARGE WRN U.S. STORM
SYSTEM OUT OF THE ROCKIES/INTO THE PLAINS. BOTH MODELS DO CONTINUE
TO SUGGEST MARKED INCREASE IN SEVERE POTENTIAL AFTER MIDWEEK AS THE
UPPER TROUGH AND ASSOCIATED SURFACE SYSTEM REACH THE CENTRAL CONUS
-- WITH CONVECTIVE/SEVERE POTENTIAL CONTINUING INTO THE WEEKEND AS
THE SYSTEM MOVES SLOWLY EWD. HOWEVER...GIVEN THE RATHER COMPLEX
EVOLUTION OF THIS SYSTEM -- WHICH COMPLICATES THE FORECAST IN TERMS
OF HIGHLIGHTING AREAS OF GREATER SEVERE POTENTIAL -- ALONG WITH THE
SUBSTANTIAL TIMING DIFFERENCES NOW EMERGING BETWEEN THE
MODELS...WILL NOT HIGHLIGHT ANY SPECIFIC THREAT AREAS THIS FORECAST.
..GOSS.. 04/19/2010
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