Saturday, November 15, 2008

MESO: Mesoscale Discussion 2391

ACUS11 KWNS 151848
SWOMCD
SPC MCD 151847
NYZ000-NJZ000-PAZ000-151945-

MESOSCALE DISCUSSION 2391
NWS STORM PREDICTION CENTER NORMAN OK
1247 PM CST SAT NOV 15 2008

AREAS AFFECTED...NERN PA...NRN NJ...SERN NY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 151847Z - 151945Z

PARTIAL CLEARING HAS DEVELOPED ACROSS PORTIONS OF SERN PA/NJ...AND
EVEN PORTIONS OF SERN NY AS WARM FRONT LIFTS NORTH AHEAD OF STRONG
UPPER TROUGH. SFC DEW POINTS SOUTH OF THE WARM FRONT RISE QUICKLY
INTO THE LOWER 60S WHICH COMBINED WITH WEAK LAPSE RATES ARE
SUFFICIENT FOR LOW TOPPED CONVECTION. GIVEN THE STRONG FORCING IT
APPEARS BOUNDARY LAYER MOISTURE WILL BE ADEQUATE FOR A FEW STRONGER
STORMS...DESPITE MINIMUM IN LIGHTNING. BROKEN SQUALL LINE IS
GRADUALLY DEVELOPING NWD ACROSS MD INTO SERN PA. THIS ACTIVITY
SHOULD CONTINUE DEVELOPING/SPREADING NNEWD ACROSS ERN PA INTO SERN
NY LATER THIS AFTERNOON INTO THE EARLY EVENING. LOCALLY STRONG
WINDS ARE THE GREATEST THREAT WITH FRONTAL CONVECTION. WILL
CONTINUE TO MONITOR FOR POSSIBLE WW.

..DARROW.. 11/15/2008

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...OKX...ALY...PHI...BGM...CTP...

LAT...LON 40537673 42357544 42637331 40557401 40537673

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