Saturday, March 24, 2012

MESO: Mesoscale Discussion 0346

ACUS11 KWNS 241831
SWOMCD
SPC MCD 241831
WVZ000-VAZ000-NCZ000-TNZ000-241930-

MESOSCALE DISCUSSION 0346
NWS STORM PREDICTION CENTER NORMAN OK
0131 PM CDT SAT MAR 24 2012

AREAS AFFECTED...SWRN VA...SRN WV...WRN NC

CONCERNING...SEVERE THUNDERSTORM WATCH 105...

VALID 241831Z - 241930Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 105
CONTINUES.

SEVERE HAIL/WIND THREAT HAS PRIMARILY BEEN CONFINED TO THE NWRN
QUADRANT OF WW 105. PROPAGATION AND DEVELOPMENT N/NEWD IS OCCURRING
WHICH MAY RESULT IN AN ISOLATED SEVERE THREAT DEVELOPING NWD INTO
SRN WV. SOME UNCERTAINTY EXISTS OVER THE AMPLITUDE OF THE SEVERE
RISK HERE...OWING TO AN APPARENT STABLE BOUNDARY LAYER ON VIS
IMAGERY IN THE WAKE OF CONVECTION DURING THE MORNING AND REMNANT
OUTFLOW BOUNDARY DRAPED FROM AROUND 30 S PSK TO LYH.
STILL...SUBSTANTIAL INSOLATION OCCURRING N OF THE BOUNDARY MAY PROVE
SUFFICIENT FOR DESTABILIZATION AND A MAINTENANCE OF SEVERE POTENTIAL
NWD. MODEL FORECAST SOUNDINGS SUGGEST MEAGER LOW-LEVEL FLOW ALONG
WITH BACKING WINDS IN THE MID-LEVELS SHOULD MITIGATE MORE ROBUST
UPDRAFT ROTATION WITH MIXED CONVECTIVE MODES.

..GRAMS.. 03/24/2012

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

ATTN...WFO...RNK...RLX...GSP...MRX...

LAT...LON 36928135 37558131 38068128 38428101 38598068 38628019
38337989 37947982 36908022 35518106 35588151 35788202
36048205 36928135

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