SWOD48
SPC AC 160900
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0400 AM CDT MON APR 16 2007
VALID 191200Z - 241200Z
..DISCUSSION...
EXTENDED MODELS REMAIN CONSISTENT IN BRINGING A LARGE UPPER
TROUGH/CLOSED LOW OUT OF THE ROCKIES AND INTO THE PLAINS DAYS 6-7
/SAT. APR 21-SUN. APR. 22/...ALONG WITH PRONOUNCED SURFACE LOW
DEVELOPMENT. WITH SELY INFLUX OF GULF MOISTURE EXPECTED IN ADVANCE
OF THIS SYSTEM...EXPECT AMPLE INSTABILITY WITHIN DEVELOPING WARM
SECTOR...WHILE INTENSITY OF THE UPPER FEATURE SHOULD PROVIDE
SUFFICIENT SHEAR FOR SUPERCELLS. THEREFORE...IT STILL APPEARS
LIKELY THAT A RELATIVELY WIDESPREAD SEVERE EVENT CAN BE EXPECTED FOR
THE UPCOMING WEEKEND...AND THUS WILL MAINTAIN A SEVERE THREAT AREA
ACROSS THE CENTRAL CONUS FOR DAY 6 AND INTO DAY 7. SUFFICIENT MODEL
DIFFERENCES BEGIN TO OCCUR BY DAY 8...PRECLUDING THE INCLUSION OF A
DAY 8 AREA ATTM.
.GOSS.. 04/16/2007
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