[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 240745
SWOMCD
SPC MCD 240744
TNZ000-KYZ000-MSZ000-MOZ000-ARZ000-240915-

MESOSCALE DISCUSSION 0366
NWS STORM PREDICTION CENTER NORMAN OK
0244 AM CDT SAT APR 24 2010

AREAS AFFECTED...CNTRL AND ERN AR...WRN TX AND NRN MS

CONCERNING...TORNADO WATCH 83...

VALID 240744Z - 240915Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 83 CONTINUES.

TORNADO WATCH 83 WILL EXPIRE AT 08Z. HOWEVER...ANOTHER WW MIGHT BE
NEEDED ON OR BEFORE 10Z FOR PARTS OF SRN AR INTO WRN TN AND NRN MS.

EARLY THIS MORNING THUNDERSTORMS CONTINUE DEVELOPING FROM WRN TN
SEWD THROUGH NRN AND CNTRL AL WITHIN BROAD ZONE OF WARM ADVECTION
GENERALLY ALONG AND NORTH OF A WARM FRONT. MOST OF THIS ACTIVITY
APPEARS ELEVATED ABOVE A STABLE BOUNDARY LAYER. STORMS JUST EAST OF
MEMPHIS TN HAVE DEVELOPED INTO A LINE SEGMENT AND MIGHT BE CAPABLE
OF PRODUCING STRONG WIND GUSTS. THE LOW LEVEL JET OVER WRN TN IS
FORECAST TO SHIFT TOWARD THE OH VALLEY IN ASSOCIATION WITH NEWD
EJECTING IMPULSE. THIS WILL RESULT IN A TEMPORARY DECREASE IN 0-1 KM
SHEAR AND FORCING FOR ASCENT ACROSS REMAINING PARTS OF WW 83. SEVERE
THREAT MAY INCREASE AGAIN BY 10Z OVER SRN AR AND SUBSEQUENTLY ACROSS
WRN TN AND NRN MS AS LINE OF SEVERE STORMS OVER NERN TX CONTINUES
NEWD...AND AS FORCING FOR ASCENT AND STRONG LOW LEVEL JET ASSOCIATED
WITH TX SHORTWAVE TROUGH BEGIN TO SHIFT TOWARD THE LOWER MS VALLEY.
RECENT RADAR TRENDS SHOW AN INCREASE IN CONVECTION OVER SWRN AR TO
THE EAST OF THE LINE. IF THIS ACTIVITY BEGINS TO INCREASE...ANOTHER
WW WOULD BE NEEDED BEFORE 10Z.

..DIAL.. 04/24/2010

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

ATTN...WFO...OHX...PAH...MEG...JAN...LZK...

LAT...LON   36179176 36528837 35848780 33988965 33579211 34159315
            36179176


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