[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 282335
SWOMCD
SPC MCD 282334
WVZ000-VAZ000-TNZ000-KYZ000-NCZ000-OHZ000-290030-

MESOSCALE DISCUSSION 0886
NWS STORM PREDICTION CENTER NORMAN OK
0634 PM CDT THU MAY 28 2009

AREAS AFFECTED...PORTIONS OF TN/KY/WV/VA/NC

CONCERNING...SEVERE THUNDERSTORM WATCH 313...

VALID 282334Z - 290030Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 313
CONTINUES.

SEVERE THREAT CONTINUES FOR WW313...BUT WILL LIKELY CONTINUE TO SEE
A RAPID DOWNWARD TREND IN SEVERITY OVER THE NEXT HOUR OR TWO.

EFFECTIVE SHEAR NEAR 25-35 KTS AND WEAK INSTABILITY HAS MAINTAINED A
FEW LOOSELY ORGANIZED CLUSTERS OF STORMS. HOWEVER...MAIN UPPER
SUPPORT HAS NOW MOVED NWD OUT OF THE WATCH AREA...WITH ONE VORT MAX
NOW MOVING INTO CNTRL OH...AND A SECONDARY VORT MAX MOVING NEWD INTO
SRN/CNTRL IND. ANVIL-LEVEL WINDS HAVE BECOME ALIGNED NEARLY PARALLEL
TO LINES/CLUSTERS OF CONVECTION...AND EXTENSIVE ANVIL DEBRIS IN
COMBINATION WITH DIURNAL COOLING IS RAPIDLY DECREASING INSTABILITY.
AS UPPER FORCING CONTINUES TO EXIT THE AREA AND INSTABILITY FURTHER
DECREASES...EXPECT A DOWNWARD TREND IN CONVECTION OVER THE NEXT HOUR
OR TWO. EARLY CANCELLATION OF THE WATCH MAY BE CONSIDERED.

..HURLBUT.. 05/28/2009

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

ATTN...WFO...RNK...RLX...GSP...MRX...JKL...ILN...OHX...HUN...

LAT...LON   35008637 38588305 38567985 35028330 35008637

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