SWOD48
SPC AC 310852
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0352 AM CDT WED MAR 31 2010
VALID 031200Z - 081200Z
...DISCUSSION...
STG SHORTWAVE TROUGH DISCUSSED IN DAY-3 OUTLOOK SHOULD LIFT NEWD UP
OH VALLEY DAY-4/3RD-4TH...OUTRUNNING ANY REMAINING/FAVORABLE
LOW-LEVEL THETAE AND LEAVING BEHIND FRONTOLYTIC BOUNDARY ACROSS
CENTRAL GULF COAST AND CENTRAL/S TX. BEYOND THAT...WSW TO SW FLOW
ALOFT AND RELATED LEE CYCLONE/TROUGHING WILL BECOME RE-ESTABLISHED
OVER CENTRAL/SRN PLAINS...AS WILL ELEVATED MIXED LAYER AIR MASS
ALOFT. CONSENSUS OF OPERATIONAL/MREF GUIDANCE STRONGLY INDICATES
NEXT COUPLE OF SIGNIFICANT SHORTWAVES -- WITHIN BROADER PLUME OF
CYCLONIC FLOW OVER WRN CONUS DAY-5/4TH-5TH AND BEYOND -- WILL PASS
ACROSS ROCKIES FARTHER N AND WITH BROADER/RICHER MOIST SECTORS THAN
DAY-2/DAY-3 SYSTEM. THIS POTENTIALLY PORTENDS MULTIPLE DAYS OF AT
LEAST MRGL SVR POTENTIAL E OF DRYLINE AND ALONG AND SE OF FRONTAL
ZONES...OVER CENTRAL AND/OR SRN PLAINS STATES. ATTM...PROGGED
TIMING/STRENGTH OF SPECIFIC PERTURBATIONS...AND OF THEIR RELATED
LOW-LEVEL BOUNDARIES...IS TOO INCONSISTENT TO ASSIGN CATEGORICAL
AREAS.
..EDWARDS.. 03/31/2010
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