SPC AC 180550
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1150 PM CST MON NOV 17 2008
VALID 181200Z - 191200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS...
THE UPPER PATTERN ACROSS THE U.S. IS FORECAST TO SLOWLY DEAMPLIFY
THIS PERIOD...AS THE ERN TROUGH MOVES SLOWLY TOWARD/OFF THE ATLANTIC
COAST AND THE UPSTREAM RIDGE WEAKENS AS A SHORT-WAVE TROUGH OVER THE
CANADIAN PRAIRIE CRESTS THE RIDGE.
WHILE A STABLE CONTINENTAL AIRMASS WILL GENERALLY PREVAIL E OF THE
ROCKIES...VERY COLD AIR ALOFT IN CONJUNCTION WITH THE ERN UPPER
TROUGH WILL CONTINUE SPREADING SEWD ACROSS THE MID-ATLANTIC REGION.
RESULTING INSTABILITY ATOP THE WARMER GULF STREAM WATERS MAY SUPPORT
SHOWERS AND A FEW THUNDERSTORMS...BUT IT APPEARS THAT LIGHTNING WILL
REMAIN OFFSHORE.
ELSEWHERE...THUNDERSTORMS ARE NOT ANTICIPATED.
..GOSS/GRAMS.. 11/18/2008
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z
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