[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 212228
SWOMCD
SPC MCD 212228
SCZ000-NCZ000-TNZ000-GAZ000-ALZ000-KYZ000-220000-

MESOSCALE DISCUSSION 1843
NWS STORM PREDICTION CENTER NORMAN OK
0528 PM CDT MON JUL 21 2008

AREAS AFFECTED...PARTS OF SRN KY...MIDDLE/ERN TN...NRN GA...WRN
CAROLINAS

CONCERNING...SEVERE THUNDERSTORM WATCH 717...718...

VALID 212228Z - 220000Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
717...718...CONTINUES.

THE NEED FOR ADDITIONAL WWS IS NOT ANTICIPATED THIS EVENING.

VIGOROUS CONVECTIVE DEVELOPMENT CONTINUES ACROSS PARTS OF THE
TENNESSEE VALLEY INTO THE SOUTHERN APPALACHIANS...WITHIN A
MODERATELY UNSTABLE AIR MASS ALONG GENERALLY SOUTHWARD ADVANCING
SURFACE COLD POOLS.  GIVEN WEAK DEEP LAYER SHEAR ACROSS THIS
REGION...THE ONGOING TENDENCY FOR A GRADUAL BOUNDARY LAYER
STABILIZATION AS TEMPERATURES BEGIN TO DROP OFF DAYTIME HIGHS... AND
WEAK TO NEGLIGIBLE LOW-LEVEL WARM ADVECTION ALONG STALLING WESTERN
FLANK OF OUTFLOWS NEAR/JUST NORTH OF THE WESTERN KENTUCKY/TENNESSEE
BORDER....CONVECTION IS EXPECTED TO WEAKEN BY/ SHORTLY AFTER 00-01Z.
 AS THIS OCCURS...THE SEVERE THREAT...NOW ALREADY BECOMING LIMITED
TO LOCALIZED DOWNBURSTS AND MARGINAL SEVERE HAIL...SHOULD DIMINISH
MORE RAPIDLY.

..KERR.. 07/21/2008

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

ATTN...WFO...GSP...MRX...FFC...LMK...OHX...BMX...HUN...PAH...MEG...

37068788 37128627 36518581 36288484 36528377 36108283
35728235 34828259 34178386 34118490 34538622 35198716
36328823



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