[BNAWX] Severe Storm Outlook Narrative

EMWIN Server emwin at nashvilleweather.net
Sat Jul 31 18:18:44 CDT 2010


ACUS11 KWNS 312318
SWOMCD
SPC MCD 312317
TNZ000-KYZ000-ILZ000-010015-

MESOSCALE DISCUSSION 1522
NWS STORM PREDICTION CENTER NORMAN OK
0617 PM CDT SAT JUL 31 2010

AREAS AFFECTED...PARTS OF WRN KY AND MIDDLE TN

CONCERNING...SEVERE THUNDERSTORM WATCH 553...

VALID 312317Z - 010015Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 553
CONTINUES.

REGIONAL RADAR IMAGERY AT 23Z INDICATES THAT STRONGEST STORM
ACTIVITY IS OCCURRING ALONG THE ERN EDGE OF HOT SURFACE AIR MASS
OVER MIDDLE TN...AS WELL AS PORTIONS OF WRN KY AHEAD OF S/W TROUGH
LOCATED INVOF THE LWR OH VALLEY. THE HOT/VERY MOIST BOUNDARY LAYER
AIR MASS CONTINUES TO MAINTAIN STRONG INSTABILITY ACROSS WW
553...FAVORABLE FOR A CONTINUED THREAT OF STRONG/SVR MULTICELLS AND
EVEN BRIEF SUPERCELLS GIVEN EFFECTIVE BULK SHEAR VALUES RANGING FROM
30-40 KT. IN ADDITION...LARGE SCALE ASCENT ASSOCIATED WITH THE UPPER
IMPULSE OBSERVED IN WV IMAGERY MAY AID IN CONTINUED STORM
MAINTENANCE AND INTENSITY THROUGH THE EVENING HOURS. THUS...THREAT
FOR DAMAGING WIND GUSTS AND LARGE HAIL IS EXPECTED TO CONTINUE
THROUGH 02Z.

..GARNER.. 07/31/2010

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

ATTN...WFO...MRX...LMK...OHX...HUN...PAH...MEG...

LAT...LON   37158854 37148545 35018474 35018776 37158854


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