[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 312013
SWOMCD
SPC MCD 312012
INZ000-ILZ000-KYZ000-TNZ000-MOZ000-ARZ000-312145-

MESOSCALE DISCUSSION 2168
NWS STORM PREDICTION CENTER NORMAN OK
0212 PM CST FRI DEC 31 2010

AREAS AFFECTED...NERN AR...NWRN TN...SERN MO...WRN KY...SRN AND ERN
IL AND NWRN IND

CONCERNING...TORNADO WATCH 770...771...

VALID 312012Z - 312145Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 770...771...CONTINUES.

THE THREAT FOR ISOLATED TORNADOES AND ISOLATED DAMAGING WIND WILL
PERSIST NEXT COUPLE HOURS...ESPECIALLY FROM NERN AR NEWD THROUGH
SERN MO AND SRN IL.

BROKEN LINE OF STORMS EXTENDS FROM NERN IL...SWWD THROUGH SERN MO
AND NERN AR MOVING EAST AT 20-25 KT. ISOLATED BOWING SEGMENTS AND
SUPERCELLS ARE EMBEDDED WITHIN PORTIONS OF THE LINE. STRONGEST
STORMS REMAIN FROM SRN IL SWWD THROUGH NERN AR WHERE LATEST
OBJECTIVE ANALYSIS SHOWS A NARROW AXIS OF MARGINAL INSTABILITY WITH
MLCAPE AOB 500 J/KG. INSTABILITY IS MORE LIMITED WITH NWD EXTENT
TOWARD NERN IL AND STORMS HAVE BEGUN TO UNDERGO SOME WEAKENING IN
THIS AREA. ACTIVITY REMAINS EMBEDDED WITHIN LARGE 0-1 KM HELICITY
AND STRONG DEEP SHEAR SUPPORTIVE OF ORGANIZED STORMS...ESPECIALLY
ACROSS REMAINING PARTS OF WW 770 INTO SRN PARTS OF WW 771 WHERE THE
THERMODYNAMIC ENVIRONMENT IS SOMEWHAT MORE FAVORABLE.

..DIAL.. 12/31/2010

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

ATTN...WFO...IWX...IND...PAH...LOT...ILX...MEG...LSX...

LAT...LON   36279033 38368943 39748881 40808824 40618688 38118800
            36058941 36279033



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