[spotters-illianaskywarn] Fwd: NOAA's National Weather Service SPC Mesoscale Discussion Update
- From: Keith Reedy <keithreedy@xxxxxxxxxxxx>
- To: spotters-illianaskywarn@xxxxxxxxxxxxx
- Date: Wed, 11 May 2011 15:26:36 -0400
Keith Reedy
keithreedy@xxxxxxxxxxxx
Begin forwarded message:
> From: National Weather Service <nws.noaa@xxxxxxxxxxxxxxxxxxxxxxx>
> Date: May 11, 2011 3:24:21 PM EDT
> To: keithreedy@xxxxxxxxxxxx
> Subject: NOAA's National Weather Service SPC Mesoscale Discussion Update
> Reply-To: National Weather Service <nws.noaa@xxxxxxxxxxxxxxxxxxxxxxx>
>
> You are subscribed to SPC Mesoscale Discussion for NOAA's National Weather
> Service.
>
>
>
> SPC MD 736
>
> 05/11/2011 03:19 PM EDT
>
> MD 0736 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR CNTRL IL...FAR ERN
> MO
>
>
>
> MESOSCALE DISCUSSION 0736
> NWS STORM PREDICTION CENTER NORMAN OK
> 0218 PM CDT WED MAY 11 2011
>
> AREAS AFFECTED...CNTRL IL...FAR ERN MO
>
> CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
>
> VALID 111918Z - 112015Z
>
> THE THREAT FOR SVR STORMS WITH DMGG WINDS AND LARGE HAIL IS
> INCREASING. A SVR TSTM WATCH MAY BE REQUIRED SOUTH OF WW 281...OR WW
> 281 MAY NEED TO BE EXPANDED SWD.
>
> THE IMPACTS OF A SUBTLE MID-LEVEL IMPULSE SWINGING THROUGH THE
> MID-MISSISSIPPI VALLEY REGION CONTINUE TO BE MANIFESTED AS
> CONVECTION DEVELOPING NEAR AND NORTH OF THE SAINT LOUIS AREA. MLCAPE
> VALUES AOA 2500 J/KG WILL RESULT IN DEEP/VIGOROUS UPDRAFTS. SWLY
> FLOW AROUND 50 KT AT 5 KM AGL PER STL VWP...LIKELY ASSOCIATED WITH
> THE IMPULSE...WILL PROVIDE SOME SUSTENANCE TO THE MULTICELLULAR
> CONVECTION GIVEN EFFECTIVE BULK SHEAR MAGNITUDE VALUES OF 30-35 KT.
> DMGG WINDS AND LARGE HAIL WILL BE THE PRIMARY THREATS.
>
> ..COHEN.. 05/11/2011
>
> ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
>
> ATTN...WFO...LOT...ILX...LSX...DVN...
>
> LAT...LON 38639077 39359146 40159127 40309012 41068920 41058860
> 40818797 39938815 38728867 38348966 38639077
>
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