[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 230544
SWOMCD
SPC MCD 230544
KYZ000-INZ000-ILZ000-TNZ000-MOZ000-MSZ000-ARZ000-OKZ000-230745-

MESOSCALE DISCUSSION 2070
NWS STORM PREDICTION CENTER NORMAN OK
1144 PM CST MON NOV 22 2010

AREAS AFFECTED...E CNTRL OK AND AR NEWD INTO SRN IL/SW IND

CONCERNING...TORNADO WATCH 748...749...

VALID 230544Z - 230745Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 748...749...CONTINUES.

A BROKEN BAND OF TSTMS CONTINUES ALONG SW-NE ORIENTED COLD FRONT
THAT ATTM EXTENDS FROM E CNTRL OK INTO SRN IL/CNTRL IND.  THE FRONT
SHOULD CONTINUE STEADILY SEWD AT ABOUT 15 KTS THROUGH LATER THIS
MORNING...WITH INDIVIDUAL STORMS ALONG THE BOUNDARY CONTINUING TO
MOVE ENE AT 40-45 KTS.

AHEAD OF THE FRONT...OTHER STORMS CONTINUE TO INCREASE IN COVERAGE
AND STRENGTH ALONG AXIS OF CONFLUENCE/WAA ON ERN EDGE OF LOW-LVL
MOISTURE/INSTABILITY AXIS.  WHILE THESE STORMS LIKELY HAVE BEEN
SLIGHTLY ELEVATED OVER THE PAST 2-3 HRS...IT APPEARS THAT THEY
GRADUALLY ARE BECOMING MORE NEARLY SFC-BASED.

AREA VWP DATA CONTINUE TO SHOW A WIND ENVIRONMENT VERY FAVORABLE FOR
SUPERCELLS...WITH 50 KT 1 KM SWLY FLOW VEERING TO 60-70 KT WSW FLOW
AT 500 MB.  WHILE NOCTURNAL BOUNDARY LAYER COOLING WILL CONTINUE TO
LIMIT SFC-BASED INSTABILITY...COMBINATION OF FAST/VERTICALLY-VEERING
WINDS AND GLANCING INFLUENCE OF ERN KS/WRN MO UPR VORT SUGGEST A
CONTINUED RISK FOR LEWPS AND/OR SUPERCELLULAR STRUCTURES.  THESE
WILL POSE A RISK FOR ISOLD TORNADOES AND LOCALLY DMGG WIND JUST
ABOUT ANYWHERE WITHIN THE VALID PORTIONS OF WWS 748 AND 749 NEWD
INTO SERN IND THROUGH LATER THIS MORNING.

..CORFIDI.. 11/23/2010

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

ATTN...WFO...LMK...OHX...IND...PAH...ILX...MEG...LZK...SGF...
TSA...

LAT...LON   34399288 34609434 35219471 35589459 35939336 36129252
            36459160 36899081 37289013 37758946 38238885 38598764
            38328677 37418710 35988870 34958954 34299104 34399288



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