SWODY3
SPC AC 010718
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0218 AM CDT THU OCT 01 2009
VALID 031200Z - 041200Z
...SYNOPSIS...
RELATIVELY SMALL CHANGES IN THE OVERALL UPPER PATTERN ARE FORECAST
THIS PERIOD...AS THE UPPER LOW OVER THE UPPER GREAT LAKES REGION
DRIFTS SLOWLY NWD AND THE WRN LOW DIGS SWD TOWARD NRN PARTS OF
CA/NV.
A SURFACE COLD FRONT ASSOCIATED WITH THE WRN UPPER LOW IS FORECAST
TO MOVE EWD/SEWD ACROSS CA AND THE GREAT BASIN. MEANWHILE...MODELS
SUGGEST THAT THE ERN U.S. COLD FRONT MAY LINGER INVOF THE ATLANTIC
COAST THROUGH THE FIRST HALF OF THE PERIOD.
PRESUMING THE ERN FRONT REMAINS ONSHORE...SHOWERS AND THUNDERSTORMS
WOULD AGAIN BE POSSIBLE ACROSS PORTIONS OF THE ATLANTIC SEABOARD.
SOME HINTS THAT AT LEAST A LIMITED SEVERE THREAT MAY EVOLVE OVER THE
MID ATLANTIC REGION ARE EVIDENT IN SOME MODEL GUIDANCE...BUT ATTM
CONFIDENCE REMAINS TOO LOW TO INTRODUCE SEVERE PROBABILITIES.
ELSEWHERE...APPRECIABLE SEVERE THREAT IS NOT EXPECTED.
..GOSS.. 10/01/2009
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