[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 112056
SWOMCD
SPC MCD 112056
TNZ000-ALZ000-GAZ000-MSZ000-112130-

MESOSCALE DISCUSSION 0415
NWS STORM PREDICTION CENTER NORMAN OK
0356 PM CDT MON APR 11 2011

AREAS AFFECTED...WRN AND MIDDLE TN...MS...AND AL

CONCERNING...TORNADO WATCH 128...

VALID 112056Z - 112130Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 128 CONTINUES.

A NEW TORNADO WATCH WILL BE ISSUED SOON TO THE EAST THROUGH
SOUTHEAST OF WW 128.

STRONGER INSTABILITY HAS DEVELOPED FROM SRN MS INTO SWRN-WRN AL WITH
MLCAPE 1000-2000 J/KG.  THIS COMBINED WITH EFFECTIVE BULK SHEAR
50-60 KT AND SRH VALUES 100-200 M2/S2 ARE SUPPORTIVE FOR ORGANIZED
STORMS WITH THE POTENTIAL FOR BOTH TORNADOES AND DAMAGING WINDS AS
THE PRIMARY THREATS.  18Z EXPERIMENTAL HRRR INDICATED STORMS
DEVELOPING OVER CENTRAL/SRN MS BETWEEN 21-22Z WITHIN THIS FAVORABLE
ENVIRONMENT AS STRONGER FORCING FOR ASCENT SPREADS EWD THE NEXT
SEVERAL HOURS WITH THE PROGRESSIVE TROUGH APPROACHING THE MID SOUTH.

FARTHER N...LOCALIZED STRONGER WIND GUSTS REMAIN A POTENTIAL ACROSS
THE VALID PORTION OF WW 128...ATTENDANT TO SEVERAL LINE SEGMENTS
MOVING ENEWD AT 40-45 KT THROUGH WRN TN AND NRN MS.

..PETERS.. 04/11/2011

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

ATTN...WFO...MRX...FFC...OHX...BMX...HUN...MOB...MEG...JAN...

LAT...LON   32059086 33418967 34838873 35998817 36238792 36048543
            34848562 32898591 32098672 31768829 31498884 31609115
            32059086


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