SWODY1
SPC AC 190041
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0641 PM CST WED NOV 18 2009
VALID 190100Z - 191200Z
...NO SVR TSTM AREAS FORECAST...
...NC COAST TO THE OH VALLEY...
STRONGEST LOW LEVEL WARM ADVECTION WILL REMAIN FOCUSED ACROSS THE OH
VALLEY WHERE LLJ ON THE ORDER OF 40-45KT SHOULD PERSIST. BUOYANCY
IS EXTREMELY LIMITED ACROSS THIS REGION BUT APPARENTLY ADEQUATE FOR
AT LEAST ISOLATED THUNDERSTORMS...PER RECENT LIGHTNING ACTIVITY OVER
SERN OH. EVEN SO...MOST CONVECTION WILL REMAIN LIGHTNING-FREE
ACROSS THE OH VALLEY.
FARTHER SOUTHEAST...DEEPER UPDRAFTS/THUNDERSTORMS WILL CONTINUE TO
DEVELOP JUST OFFSHORE OVER THE WARMER WATERS OF GULF STREAM. IN THE
ABSENCE OF STRONGER FORCING...ELEVATED INSTABILITY ATOP COOLER
AIRMASS WEDGED EAST OF THE APPALACHIANS MAY BE INADEQUATE TO SUPPORT
MORE THAN ISOLATED STORMS INLAND.
..DARROW.. 11/19/2009
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