[BNAWX] Severe Storm Outlook Narrative

EMWIN Server emwin at nashvilleweather.net
Thu Aug 16 21:27:06 CDT 2012


ACUS11 KWNS 170226
SWOMCD
SPC MCD 170226
TNZ000-KYZ000-170500-

MESOSCALE DISCUSSION 1780
NWS STORM PREDICTION CENTER NORMAN OK
0926 PM CDT THU AUG 16 2012

AREAS AFFECTED...SRN KY...MUCH OF MIDDLE TN

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 170226Z - 170500Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...SOME SEVERE THREAT WILL PERSIST SE OF WW 583 ACROSS CNTRL
KY AND INTO TN. A WATCH IS POSSIBLE BUT NOT CERTAIN.

DISCUSSION...RADAR SHOWS A LINE OF STORMS PROPAGATING SSEWD ACROSS
SRN KY...AND WILL APPROACH THE NASHVILLE AREA BY ABOUT 330Z WITH
GUSTY WINDS. OTHER MORE CELLULAR ACTIVITY EXISTS ACROSS WRN/MIDDLE
TN WITH A THREAT OF HAIL. EVEN THE CELLULAR ACTIVITY WAS SHOWING A
PROPENSITY TO PRODUCE OUTFLOW.

THE 00Z BNA SOUNDING SHOWED AMPLE INSTABILITY...BUT VERY WEAK LOW TO
MIDLEVEL FLOW. AS THE MAIN LINE OF STORMS CONTINUES SWD...IT WILL
ENCOUNTER LESS FLOW AND EVENTUALLY OUTFLOW MAY OUTRUN THE
STORMS...ENDING THE THREAT. THIS MIGHT OCCUR ACROSS SRN TN LATER
THIS EVENING. GIVEN CONTINUED COOLING OF THE BOUNDARY LAYER...A
GRADUAL WEAKENING OF THE STORMS IS ANTICIPATED.

..JEWELL/THOMPSON.. 08/17/2012

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

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

LAT...LON   35738900 36018837 36448791 36878763 37078660 37318603
            37328536 36848451 35988439 35568465 35228579 35298688
            35398798 35738900


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