SWOD48
SPC AC 150855
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0355 AM CDT THU OCT 15 2009
VALID 181200Z - 231200Z
...DISCUSSION...
IT APPEARS THAT CENTRAL/EASTERN STATES UPPER RIDGE/SURFACE HIGH
PRESSURE AND ASSOCIATED STABLE/DRY AIRMASS WILL KEEP DEEP CONVECTIVE
POTENTIAL QUITE LOW OVER THE CONUS INTO EARLY NEXT WEEK. LATEST
ECMWF/GEFS GUIDANCE CONTINUE TO IMPLY THAT A BROAD UPPER TROUGH WILL
DEVELOP OVER THE ROCKIES/PLAINS EARLY NEXT WEEK. SOME SEVERE THREAT
COULD DEVELOP BY AROUND DAY 6/TUESDAY ACROSS PORTIONS OF THE
CENTRAL/SOUTHERN PLAINS...BUT A WIDESPREAD SEVERE RISK IS NOT
CURRENTLY ANTICIPATED GIVEN EXPECTATIONS FOR MODEST BOUNDARY LAYER
MOISTURE.
..GUYER.. 10/15/2009
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