[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 071829
SWOMCD
SPC MCD 071829
TNZ000-MSZ000-MOZ000-ARZ000-LAZ000-TXZ000-072100-

MESOSCALE DISCUSSION 0283
NWS STORM PREDICTION CENTER NORMAN OK
0129 PM CDT WED APR 07 2010

AREAS AFFECTED...NERN TX...SRN AND ERN AR WRN TN...AND EXTREME NWRN
MS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 071829Z - 072100Z

STORM INTENSITIES WILL UNDERGO A GRADUAL INCREASE THIS AFTERNOON AND
EVENING FROM NERN TX NRN LA...AR AND EVENTUALLY WRN TN. ISOLATED
LARGE HAIL AND DAMAGING WIND ARE EXPECTED TO BE THE PRIMARY THREATS.
AREA IS BEING MONITORED FOR A POSSIBLE WW.

A COLD FRONT EXTENDS FROM A SURFACE LOW IN WRN IL SWWD THROUGH NWRN
AR INTO NERN AND ERN TX. A MOIST AXIS WITH LOW 60S DEWPOINTS HAS
ADVECTED NWD THROUGH PRE-FRONTAL WARM SECTOR...BUT BOUNDARY LAYER
DESTABILIZATION HAS BEEN MODERATED BY WIDESPREAD LOW CLOUDS WITH
SURFACE TEMPERATURES REMAINING IN THE LOW 70S. SPECIAL 18Z RAOB FROM
LITTLE ROCK SHOWS MODEST LAPSE RATES AND AN INVERSION PRESENT JUST
ABOVE 700 MB. HOWEVER...FORCING ALONG EWD MOVING BAROCLINIC ZONE
AUGMENTED BY APPROACHING SHORTWAVE TROUGH WILL CONTINUE TO PROMOTE
THUNDERSTORM DEVELOPMENT THE REMAINDER OF THIS AFTERNOON. LOW-LEVEL
WIND PROFILES ARE UNIDIRECTIONAL...BUT DEEP SHEAR OF 40-50 KT WILL
SUPPORT ORGANIZED STORM STRUCTURES INCLUDING SUPERCELLS AND BOWING
LINE SEGMENTS.

..DIAL.. 04/07/2010

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

ATTN...WFO...MEG...JAN...LZK...SHV...

LAT...LON   33159442 35719183 36399042 36148933 35018964 32529272
            32199439 33159442



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