SPC AC 110709
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0209 AM CDT WED MAR 11 2009
VALID 131200Z - 141200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS/FORECAST...
LARGE SCALE SPLIT FLOW WILL PREVAIL INTO FRIDAY ACROSS THE CONUS. A
BROAD SOUTHERN STREAM UPPER TROUGH WILL CONTINUE TO MIGRATE EASTWARD
OVER THE SOUTHERN ROCKIES/FAR NORTHERN MEXICO...WITH POTENTIAL FOR
AN EJECTING/LEAD SHORTWAVE TROUGH ACROSS THE SOUTHERN PLAINS. WITH
APPRECIABLE MOISTURE CONFINED TO THE IMMEDIATE GULF COAST AND
PERSISTENT HIGH PRESSURE EAST OF THE ROCKIES...DEEP CONVECTIVE
POTENTIAL WILL GENERALLY BE QUITE LOW.
ONE EXCEPTION WILL BE CONTINUED RAIN/MAINLY ISOLD TSTM POTENTIAL
ACROSS TX INTO LA...VIA PERTURBED SOUTHWESTERLY FLOW ALOFT COUPLED
WITH WEAK ELEVATED BUOYANCY ATOP A COOL/STABLE BOUNDARY LAYER. ANY
RISK FOR HAIL SHOULD BE CONSIDERABLY LIMITED WITH WEAK ELEVATED CAPE
OF A FEW HUNDRED J/KG OR LESS...AND THUS SEVERE TSTMS ARE NOT
EXPECTED.
..GUYER.. 03/11/2009
CLICK TO GET WUUS03 PTSDY3 PRODUCT
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z
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