[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 161810
SWOMCD
SPC MCD 161810
WVZ000-TNZ000-KYZ000-VAZ000-OHZ000-NCZ000-INZ000-ILZ000-161845-

MESOSCALE DISCUSSION 1158
NWS STORM PREDICTION CENTER NORMAN OK
0110 PM CDT TUE JUN 16 2009

AREAS AFFECTED...TN/SERN IL/FAR SRN IND/KY/FAR SWRN WV AND SWRN VA

CONCERNING...SEVERE THUNDERSTORM WATCH 432...

VALID 161810Z - 161845Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 432
CONTINUES.

DESTRUCTIVE WINDS HAVE BECOME MORE LIKELY WITH THE LEADING LINE OF
TSTMS TRACKING EWD ACROSS WRN KY/TN.  NEW WW WILL LIKELY BE NEEDED
TO THE EAST OF WW 432 BY 19Z.

GREATEST RISK FOR DESTRUCTIVE WINDS OF AT LEAST 60 KT EXTENDS FROM
THE NRN TIER OF TN COUNTIES INTO KY WHERE STRONGEST WLY REAR INFLOW
JET IS TRANSLATING EWD.  WSR-88D VADS IN WRN KY SINCE 17Z INDICATED
THIS JET IS LOCATED IN THE 1-4 KM AGL LAYER WITH VALUES RANGING FROM
50-60 KT.  THIS SUSTAINED REAR INFLOW JET COMBINED WITH A WELL
DEFINED COLD POOL WILL SUPPORT CONTINUED EWD MOVEMENT WITH LATEST
RADAR TRENDS SHOWING A FORWARD SPEED OF 40-45 KT.

ADDITIONAL SURFACE HEATING DOWNSTREAM AS TEMPERATURES RISE THROUGH
THE 80S IS RESULTING IN A MODERATELY UNSTABLE AIR MASS EWD TO THE
CENTRAL/SRN APPALACHIANS AND THEN SEWD ACROSS SC.  THIS COMBINED
WITH GIVEN SPEED OF CURRENT LINE OF TSTMS AND REAR INFLOW JET...A
NEW WW WILL LIKELY BE NEEDED TO THE EAST OF WW 432 BY 19Z.

..PETERS.. 06/16/2009

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

ATTN...WFO...RLX...GSP...MRX...JKL...ILN...LMK...OHX...IND...
HUN...PAH...ILX...MEG...

LAT...LON   35378985 36168885 37148802 38618853 38548666 38778599
            38788455 38428257 37928213 36838246 35898299 35058431
            35228580 35378985

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