Sunday, August 15, 2010

MESO: Mesoscale Discussion 1694

ACUS11 KWNS 152225
SWOMCD
SPC MCD 152225
PAZ000-OHZ000-MIZ000-INZ000-152330-

MESOSCALE DISCUSSION 1694
NWS STORM PREDICTION CENTER NORMAN OK
0525 PM CDT SUN AUG 15 2010

AREAS AFFECTED...NRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 617...

VALID 152225Z - 152330Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 617
CONTINUES.

AT 22Z...VISIBLE SATELLITE IMAGERY AND SURFACE OBSERVATIONS INDICATE
CONVECTIVE OUTFLOW HAS EMANATED NWD INTO CNTRL-NRN OH FROM STORMS
OVER SRN OH. THIS HAS RESULTED IN SUBSTANTIAL BOUNDARY LAYER
STABILIZATION OVER CNTRL OH /WHERE TEMPERATURES HAVE FALLEN INTO THE
UPPER 70S/LOW 80S F/...AND LESS SO OVER NRN OH /INVOF LAKE ERIE
COASTLINE/ WHERE TEMPERATURES REMAIN IN THE MID TO UPPER 80S F.
SHORT TERM MODEL GUIDANCE INDICATES THAT AN INCREASE IN LARGE SCALE
FORCING MAY OCCUR ACROSS NRN OH THROUGH 03Z AS 60+ KT MID LEVEL JET
STREAK APPROACHES THE REGION. MAGNITUDE AND ORIENTATION OF DEEP
LAYER VERTICAL ACROSS THE EWD MOVING COLD FRONT IS EXPECTED TO
SUPPORT DISCRETE STORMS AND POSSIBLE SUPERCELLS. PRIMARY SEVERE
WEATHER THREAT WILL CONTINUE TO BE DAMAGING WIND GUSTS AND
MARGINALLY SEVERE HAIL...IN ADDITION TO A BRIEF TORNADO.

..GARNER.. 08/15/2010

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

ATTN...WFO...PBZ...CLE...ILN...DTX...IWX...IND...

LAT...LON 40398494 41738356 41948050 40418091 39838435 40398494

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