[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 132022
SWOMCD
SPC MCD 132022
KYZ000-TNZ000-INZ000-ALZ000-132115-

MESOSCALE DISCUSSION 0470
NWS STORM PREDICTION CENTER NORMAN OK
0322 PM CDT MON APR 13 2009

AREAS AFFECTED...FAR SRN IND...CNTRL KY...MIDDLE TN...FAR NRN AL

CONCERNING...TORNADO WATCH 151...

VALID 132022Z - 132115Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 151 CONTINUES.

SEVERE THUNDERSTORMS CAPABLE OF LARGE HAIL AND DMGG WINDS WILL
CONTINUE ACROSS MAINLY THE ERN HALF OF WW151. ISOLD TORNADOES REMAIN
POSSIBLE...ESPECIALLY NEAR THE WARM FRONT ACROSS THE FAR NRN PORTION
OF THE WATCH.

CONVECTIVE DEVELOPMENT HAS BECOME MORE WIDESPREAD ACROSS THE WATCH
AREA UNDER STRONGLY DIFFLUENT FLOW ALOFT AND AHEAD OF A MID LEVEL
SHORT WAVE NOTED ON WV IMAGERY APPROACHING CNTRL KY/MIDDLE TN. 20Z
SURFACE ANALYSIS PLACES A LOW IN CNTRL IL...WITH A MESOLOW IN SRN
IND. A WARM FRONT EXTENDS EWD ROUGHLY ALONG THE OH RIVER...WHILE A
COLD FRONT EXTENDS SWD THROUGH CNTRL KY/MIDDLE TN. ALTHOUGH STORMS
ON THE SRN EXTENT ARE GENERALLY MERGING INTO FORCED LINEAR
CONVECTION ALONG THE COLD FRONT...STORMS TO THE N ARE MAINTAINING
DISCRETE/SUPERCELLULAR STRUCTURES IN AN ENVIRONMENT CHARACTERIZED BY
50 TO 60 KT OF 0-6 KM BULK SHEAR AND MODERATE INSTABILITY. CLOSER TO
THE WARM FRONT...TORNADIC SUPERCELLS REMAIN POSSIBLE...SUPPORTED BY
RECENT PROFILER DATA IN SWRN OH WHERE CONSIDERABLE DIRECTIONAL SHEAR
IS NOTED IN LOW LEVELS. A LOCAL EXTENSION OR A NEW WW EAST OF THE
CURRENT WATCH MAY BE NEEDED.

..HURLBUT.. 04/13/2009

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

ATTN...WFO...JKL...ILN...LMK...OHX...IND...HUN...PAH...

LAT...LON   36358529 34828650 34858733 35488703 36648634 38288692
            38868672 39138573 38608467 37048494 36358529

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