SWODY1
SPC AC 181233
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0733 AM CDT MON OCT 18 2010
VALID 181300Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
LATEST WATER VAPOR IMAGERY SHOWS A PRONOUNCED UPPER LOW OFF THE
CENTRAL CA COAST. THIS FEATURE WILL TRACK SOUTHWARD AND BECOME MORE
DETACHED FROM THE PREVAILING WESTERLIES DURING THE FORECAST
PERIOD...WHILE BROAD CYCLONIC FLOW REMAINS OVER MUCH OF THE REST OF
THE NATION. ISOLATED SHOWERS AND THUNDERSTORMS ARE OCCURRING THIS
MORNING OVER A RATHER LARGE PART OF THE SOUTHWEST STATES AND
SOUTHERN PLAINS. THIS PATTERN WILL CONTINUE THROUGH THE DAY AND
INTO TONIGHT AS LOW/MID LEVEL MOISTURE INCREASES. AREAL COVERAGE OF
THUNDERSTORMS WILL LIKELY REMAIN LIMITED THROUGH MOST OF THE
DAY...UNTIL MORE FOCUSED LIFT AND DESTABILIZATION INCREASE THE
POTENTIAL FOR CONCENTRATED CONVECTION OVER PARTS OF OK/KS AFTER
DARK. WEAK VERTICAL SHEAR AND MARGINAL INSTABILITY SHOULD PRECLUDE
THE RISK OF SEVERE STORMS.
..HART/ROGERS.. 10/18/2010
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