SPC AC 180015
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0615 PM CST TUE NOV 17 2009
VALID 180100Z - 181200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A LARGE UPPER LOW CENTERED OVER SERN MO/NERN AR IS EXPECTED TO
LINGER/DRIFT SLIGHTLY NWD THROUGH THE END OF THE PERIOD...WHILE
FARTHER W A TROUGH CONTINUES MOVING INTO THE NWRN CONUS.
AN ISOLATED LIGHTNING STRIKE OR TWO WILL REMAIN POSSIBLE OVER THE
LOWER AND MID OH VALLEY REGION THIS EVENING...THOUGH EXPECTED TO
REMAIN BELOW 10% PROBABILITY. MEANWHILE...SHOWERS AND A FEW
LIGHTNING STRIKES ARE ONGOING FROM THE HIGHER ELEVATIONS OF WRN WA
WWD/OFFSHORE. WITH THIS LIKELY TO CONTINUE OVERNIGHT...WILL
MAINTAIN A THUNDER AREA OVER WRN WA/WRN OREGON THROUGH THE END OF
THE PERIOD.
..GOSS.. 11/18/2009
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z
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