842
ACUS01 KWNS 211232
SWODY1
SPC AC 211230
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0630 AM CST THU NOV 21 2024
VALID 211300Z - 221200Z
..NO SEVERE THUNDERSTORM AREAS FORECAST
..SUMMARY
SEVERE THUNDERSTORMS ARE NOT EXPECTED TODAY AND TONIGHT.
..SYNOPSIS AND DISCUSSION
A MATURE MID/UPPER-LEVEL CYCLONE WILL MOVE FROM THE GREAT LAKES/OH
VALLEY TO THE EAST COAST TODAY. MODEST LOW-LEVEL WARM ADVECTION MAY
SUPPORT OCCASIONAL ELEVATED THUNDERSTORMS TO THE NORTH OF A FRONT
NEAR LONG ISLAND NY. THIS ACTIVITY SHOULD GENERALLY REMAIN OFFSHORE.
OTHERWISE, ISOLATED LIGHTNING FLASHES MAY BE NOTED WITH SHALLOW
CONVECTION TODAY ACROSS PARTS OF THE CENTRAL APPALACHIANS, BENEATH
COLD MID-LEVEL TEMPERATURES ASSOCIATED WITH THE UPPER LOW. ALTHOUGH
LOW-LEVEL MOISTURE AND RELATED MUCAPE ARE BOTH FORECAST TO REMAIN
MEAGER, SOME OF THIS ACTIVITY MAY ACQUIRE SUFFICIENT DEPTH TO
SUPPORT CHARGE SEPARATION. FINALLY, ISOLATED CONVECTION PRODUCING
OCCASIONAL LIGHTNING MAY BRUSH PARTS OF THE WA COAST THROUGH THIS
AFTERNOON.
..GLEASON/KERR.. 11/21/2024
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