[spotters-illianaskywarn] Fwd: Mesoscale Discussion
- From: Keith Reedy <wa9dro@xxxxxxxxx>
- To: spotters-illianaskywarn@xxxxxxxxxxxxx
- Date: Mon, 21 Jun 2010 18:45:17 -0400
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Begin forwarded message:
> From: <interwarn@xxxxxxxx>
> Date: June 21, 2010 6:38:58 PM EDT
> To: <keithreedy@xxxxxxxxxxxx>
> Subject: Mesoscale Discussion
>
>
> ACUS11 KWNS 212236
> SWOMCD
> SPC MCD 212235
> INZ000-KYZ000-ILZ000-212330-
>
> MESOSCALE DISCUSSION 1062
> NWS STORM PREDICTION CENTER NORMAN OK
> 0535 PM CDT MON JUN 21 2010
>
> AREAS AFFECTED...SRN IL/CNTRL AND SRN IND
>
> CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
>
> VALID 212235Z - 212330Z
>
> ISOLATED SEVERE STORMS CAPABLE OF DMGG WINDS AND LARGE HAIL WILL BE
> POSSIBLE OVER THE NEXT FEW HOURS. DUE TO THE ISOLATED NATURE...A WW
> IS NOT ANTICIPATED. HOWEVER...A WW MAY BECOME NECESSARY LATER THIS
> EVENING AS CONVECTION IN SERN IA/NERN MO/W CNTRL IL PROGRESSES EWD.
>
> CONVECTION HAS INITIATED ALONG A REMNANT OUTFLOW BOUNDARY THAT
> EXTENDS ROUGHLY FROM NERN TN WNWWD INTO S CNTRL IND...WHILE CU IS
> INCREASING ALONG ANOTHER W-E ORIENTED BOUNDARY IN SRN IL/IND. AIR
> MASS HAS RECOVERED ACROSS IL/IND BEHIND A DECAYING MCS THAT IS NOW
> PROGRESSING INTO SWRN VA...WHILE SIGNIFICANT CLOUD COVER STILL
> REMAINS IN PORTIONS OF OH/ERN KY/WV. BEHIND THIS CLOUD COVER...AMPLE
> HEATING HAS LED TO A VERY TO EXTREMELY UNSTABLE AIR MASS...WITH
> MLCAPES EXCEEDING 3500 J/KG. WEAK UPPER RIDGING/SUBSIDENCE APPEARS
> TO BE ORIENTED OVER PORTIONS OF IL/IND AS ONE UPPER WAVE MOVES EWD
> IN OH/KY/WV...AND ANOTHER APPROACHES FROM THE W...CURRENTLY LOCATED
> ON WV IMAGERY OVER NRN IA/SRN MN. THIS WILL LIKELY PREVENT MORE
> WIDESPREAD CONVECTION FROM OCCURRING OVER THE NEXT FEW
> HOURS...THOUGH A WW MAY BECOME NECESSARY LATER THIS EVENING AS THE
> COMPLEX IN IA/W CNTRL IL PROGRESSES EWD. 18Z ILX SOUNDING INDICATES
> STEEP LAPSE RATES AND SUFFICIENT EFFECTIVE SHEAR FOR LARGE HAIL
> PRODUCTION AND DMGG WINDS. BRIEF ROTATION MAY BE POSSIBLE WITH ANY
> CELLS THAT CAN DEVELOP AS LINGERING BOUNDARIES ENHANCE LOW LEVEL
> VORTICITY...THOUGH ANY ROTATION WILL LIKELY BE BRIEF IN NATURE.
>
> .HURLBUT.. 06/21/2010
>
> ..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
>
> ATTN...WFO...LMK...IND...PAH...ILX...LSX...
>
> LAT...LON 39288551 38708553 38198619 37948705 37918799 38088890
> 38748941 39548887 39758722 39998597 39288551
>
> WWWW
>
>
> $$
>
> This weather bulletin was brought to you by InterWARN at www.interwarn.com
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