SWODY1
SPC AC 131608
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1008 AM CST WED JAN 13 2010
VALID 131630Z - 141200Z
...NO SVR TSTM AREAS FORECAST...
TROUGH HAS MOVED INLAND OVER CA AND WITH UPSTREAM RIDGING...WILL DIG
SEWD INTO AZ/NWRN MEXICO BY 12Z THU. WITH INCREASING SUBSIDENCE AND
DIMINISHING ONSHORE FLOW OF PAC MOISTURE...THREAT OF THUNDERSTORMS
SHOULD BE ABOUT OVER TO THE W OF SIERRAS.
IT WILL BE DIFFICULT TO DEVELOP MUCH INSTABILITY UNDER THE DIGGING
TROUGH INTERIOR SECTIONS OF SWRN U.S. AS LOW LEVEL AIR MASS
INITIALLY LACKING IN MOISTURE.
WITH ASCENT ASSOCIATED WITH DIGGING TROUGH AND STEEPENING LAPSE
RATES WILL MAINTAIN A LOW PROBABILITY OF THUNDERSTORMS THIS
AFTERNOON INTO TONIGHT GENERALLY ACROSS SRN NV INTO NWRN AZ.
..HALES.. 01/13/2010
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