[spotters-illianaskywarn] Fwd: NOAA's National Weather Service SPC Mesoscale Discussion Update
- From: Keith Reedy <keithreedy@xxxxxxxxxxxx>
- To: "spotters-illianaskywarn@xxxxxxxxxxxxx" <spotters-illianaskywarn@xxxxxxxxxxxxx>
- Date: Thu, 9 May 2013 18:53:41 -0400
Keith Reedy
keithreedy@xxxxxxxxxxxx
Begin forwarded message:
> From: "GovDelivery Weather Updates" <weatherupdates@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: NOAA's National Weather Service SPC Mesoscale Discussion Update
> Date: May 9, 2013 6:06:37 PM EDT
> To: keithreedy@xxxxxxxxxxxx
> Reply-To: weatherupdates@xxxxxxxxxxxxxxxxxxxxxx
>
>
>
> You are subscribed to SPC Mesoscale Discussion for NOAA's National Weather
> Service.
> GovDelivery provides this service using unaltered NOAA/NWS products.
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>
> SPC MD 612
> 05/09/2013 05:58 PM EDT
>
> MD 0612 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR CNTRL IL/IND
>
>
> MESOSCALE DISCUSSION 0612
> NWS STORM PREDICTION CENTER NORMAN OK
> 0457 PM CDT THU MAY 09 2013
>
> AREAS AFFECTED...CNTRL IL/IND
>
> CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
>
> VALID 092157Z - 100000Z
>
> PROBABILITY OF WATCH ISSUANCE...40 PERCENT
>
> SUMMARY...A CLUSTER OF STRONG THUNDERSTORMS HAS DEVELOPED OVER
> SOUTH-CENTRAL IL. THE POTENTIAL EXISTS FOR A FEW SEVERE STORMS OVER
> A LIMITED AREA THIS AFTERNOON AND EVENING.
>
> DISCUSSION...LATEST SURFACE ANALYSIS SHOWS A LOW OVER SOUTHEAST
> IA...WITH A WEAK WARM FRONT/OUTFLOW BOUNDARY ARCING SOUTHEASTWARD
> ACROSS SOUTH-CENTRAL IL...AND EASTWARD ACROSS CENTRAL IND.
> MEANWHILE...A WELL-DEFINED AND COMPACT MID LEVEL VORTICITY MAX IS
> TRACKING EASTWARD ROUGHLY ALONG THE BOUNDARY NEAR MVN/SLO.
> SCATTERED THUNDERSTORMS HAVE FORMED IN THE IMMEDIATE VICINITY OF THE
> UPPER CIRCULATION IN A SMALL POCKET OF MODERATE INSTABILITY /SBCAPE
> VALUES AROUND 2000 J/KG/ AND LITTLE CAP. WIDESPREAD CLOUD COVER HAS
> LIMITED HEATING FARTHER EAST...WHICH MAY LIMIT THE EASTWARD EXTENT
> OF THE THREAT OF STRONG/SEVERE STORMS. NEVERTHELESS...AMBIENT
> VORTICITY NEAR THE NEAR THE CIRCULATION CENTER AND ALONG THE WARM
> FRONT COULD BE SUFFICIENT FOR SUPERCELL CHARACTERISTICS AND A RISK
> OF HAIL/DAMAGING WINDS AND A BRIEF TORNADO. STORMS IN THIS REGION
> WILL BE MONITORED FOR INTENSIFICATION WITH THE POSSIBILITY OF A
> SMALL WATCH.
>
> ..HART/BROYLES.. 05/09/2013
>
> ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
>
> ATTN...WFO...LMK...IND...PAH...ILX...LSX...
>
> LAT...LON 39548885 39618810 40058638 39968575 39468579 38358709
> 37968887 37938996 38189009 38488987 39278983 39498946
> 39548885
>
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