[spotters-illianaskywarn] Fwd: Mesoscale Discussion
- From: Keith Reedy <reedyk@xxxxxx>
- To: spotters-illianaskywarn@xxxxxxxxxxxxx
- Date: Sat, 24 Apr 2010 13:05:15 -0400
Begin forwarded message:
> From: interwarn@xxxxxxxx
> Date: April 24, 2010 12:49:46 PM EDT
> To: reedyk@xxxxxx
> Subject: Mesoscale Discussion
>
>
> ACUS11 KWNS 241641
> SWOMCD
> SPC MCD 241640
> GAZ000-KYZ000-TNZ000-ALZ000-INZ000-241815-
>
> MESOSCALE DISCUSSION 0375
> NWS STORM PREDICTION CENTER NORMAN OK
> 1140 AM CDT SAT APR 24 2010
>
> AREAS AFFECTED...AL...WRN GA...MIDDLE TN...CNTRL KY...SCNTRL IND
>
> CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
>
> VALID 241640Z - 241815Z
>
> TORNADO WATCHES 92/93 WILL BE REPLACED AND/OR EXPANDED /BY 18Z/ TO
> COVER MOST...IF NOT ALL...OF THE REGION THROUGH THE EVENING HOURS.
> COMPLEX SCENARIO HAS UNFOLDED OVER THE REGION AND WILL RESULT IN
> MULTIPLE REGIONS OF ENHANCED SVR RISKS.
>
> ..CNTRL/SRN AL-NRN/CNTRL GA...
> MORNING ACTIVITY...ENHANCED BY A LEAD MID-LVL WAVE...WILL LIKELY
> CONTINUE TO THRIVE AS LARGER-SCALE ASCENT AHEAD OF THE PRIMARY UPR
> IMPULSE SPREADS ENE. THIS WILL MAINTAIN A ZONE OF HIGHER SVR
> PROBABILITIES ACROSS CNTRL/SRN AL INTO WCNTRL/NWRN GA FOR SVRL MORE
> HOURS. EXTREME LLVL SHEAR IN PLACE...LOW-LCLS AND LARGELY DISCRETE
> STORM MODES WILL MAINTAIN RISKS FOR STRONG TORNADOES.
>
> ..CNTRL KY TO SCNTRL IND...
> MCV WAS EVIDENT OVER MIDDLE TN WITH STRONG WAA DRIVING PRIMARILY
> ELEVATED STORMS FROM THE LWR OH VLY INTO MIDDLE TN...TRANSITIONING
> TO SFC-BASED SUPERCELLS ALONG THE WRN TN/NRN MS BORDER. STORMS WILL
> CONTINUE TO DEVELOP ENE INTO CNTRL KY AND SCNTRL IND LATER THIS AFTN
> WHERE AIR MASS WILL UNDERGO RAPID DESTABILIZATION. WHILE INITIAL
> STORMS WILL BE MOSTLY A LARGE HAIL THREAT...AS LOW-LEVELS CONTINUE
> TO MOISTEN AND LARGE SCALE ASCENT INCREASES...MORE ROBUST SFC-BASED
> STORMS WILL BE LIKELY WITH AN INCREASE IN TORNADO/LARGE HAIL
> THREATS.
>
> ..NRN AL AND MIDDLE TN...
> THE BRIEF LULL IN SVR THREAT LATE THIS MORNING WILL CHANGE THIS AFTN
> AS LARGE SCALE ASCENT OVERSPREADS THE DESTABILIZING WARM SECTOR IN
> PLACE. STORMS WERE ALREADY RAPIDLY FORMING OVER NERN MS AND THESE
> ARE EXPECTED TO MOVE/DEVELOP INTO NRN AL/MIDDLE TN EARLY-MID AFTN AS
> DISCRETE STORMS. STRONG TORNADOES WILL BE POSSIBLE ALONG WITH VERY
> LARGE HAIL GIVEN 0-1KM SRH IN EXCESS OF 450 M2/S2.
>
> .RACY.. 04/24/2010
>
> ..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
>
> ATTN...WFO...MRX...JKL...FFC...ILN...LMK...OHX...IND...BMX...
> HUN...MOB...PAH...
>
> LAT...LON 31288809 34598745 36828715 38688660 38448457 35378479
> 33798471 32088523 31768560 31288809
>
> $$
>
>
> This weather bulletin was brought to you by InterWARN at www.interwarn.com
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