[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 051405
SWOMCD
SPC MCD 051404
KYZ000-INZ000-ILZ000-TNZ000-MOZ000-051530-

MESOSCALE DISCUSSION 1889
NWS STORM PREDICTION CENTER NORMAN OK
0904 AM CDT WED SEP 05 2012

AREAS AFFECTED...SRN IL AND IND...WRN KY...SERN MO

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 051404Z - 051530Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...STORMS MAY INCREASE OVER THE NEXT SEVERAL HOURS WITH
DAMAGING WINDS POSSIBLE FROM SRN IL/IND SWD INTO WRN KY AND TN.

DISCUSSION...A LINE OF STORMS ASSOCIATED WITH A MESO-HIGH FROM AN
EARLIER MCS IS EXPECTED TO PERSIST WITH DAMAGING WIND POTENTIAL
SPREADING SEWD INTO THE OH VALLEY.

SURFACE ANALYSIS SHOWS SUBSTANTIAL PRESSURE RISES BEHIND THIS
LINE...AND AREA OF HEATING WILL OCCUR AHEAD OF IT...STEEPENING LAPSE
RATES AND DESTABILIZING THE AIR MASS. ALSO...AS THIS SYSTEM
PROGRESSES SEWD...MEAN WINDS VEER AND BECOME LESS PARALLEL TO THE
LINE...WHICH MAY HELP TO ENHANCE FORWARD PROPAGATION.

..JEWELL/CORFIDI.. 09/05/2012

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

ATTN...WFO...LMK...OHX...IND...PAH...ILX...LSX...

LAT...LON   39668766 39378670 38358607 37428608 36858671 36638793
            36608939 37058981 37699004 38269018 38689013 39198889
            39668766



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