[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 301239
SWOMCD
SPC MCD 301238
WVZ000-OHZ000-VAZ000-TNZ000-KYZ000-NCZ000-GAZ000-ALZ000-301415-

MESOSCALE DISCUSSION 0093
NWS STORM PREDICTION CENTER NORMAN OK
0638 AM CST WED JAN 30 2013

AREAS AFFECTED...PARTS OF SRN OH...ERN KY...WRN WV...FAR SWRN VA AND
ERN TN

CONCERNING...TORNADO WATCH 15...17...

VALID 301238Z - 301415Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 15...17...CONTINUES.

SUMMARY...THREAT FOR DAMAGING WINDS PERSISTS EARLY THIS MORNING
ACROSS PARTS OF SRN OH...ERN KY...AND ERN TN...WITH THIS THREAT
REACHING SERN OH...WRN WV AND FAR SWRN VA BETWEEN 13-14Z WHERE
COUNTIES MAY NEED TO BE ADDED ON THE NERN EXTENT OF WW 17.  IN
ADDITION...A TORNADO THREAT ALSO CONTINUES...WITH PARTICULAR CONCERN
INTO NWRN GA AS DISCRETE CELLS TRACK NEWD INTO THIS AREA FROM EAST
CENTRAL-NERN AL.

DISCUSSION...DESPITE A CONTINUED WEAKLY UNSTABLE ENVIRONMENT ACROSS
THE UPPER TN THROUGH THE MIDDLE-UPPER OH VALLEY THIS MORNING...VERY
STRONG DEEP LAYER WIND FIELDS WILL MAINTAIN THE LINEAR STRUCTURE
WITH EMBEDDED LEWPS. WSR-88D VWP DATA ALONG AND EAST OF THE LINE OF
LOW TOPPED CONVECTION TRAVERSING THIS REGION INDICATED SLY WINDS AT
70 KT AT 1 KM AGL.  THESE WINDS COMBINED WITH THE EWD MOTION OF THE
LINE AT 40 KT AND INDIVIDUAL LINE/BOWING SEGMENTS TRACKING NEWD AT
50-60 KT WILL CONTINUE TO SUPPORT A THREAT FOR DAMAGING WINDS.  IN
ADDITION...GIVEN THE STRENGTH OF THE SLY LLJ...STRONG LOW LEVEL WIND
SHEAR /0-1 KM SRH OF 500+ M2 PER S2/ WILL CONTINUE TO SUPPORT A
THREAT FOR TORNADOES.

THE NRN EXTENT OF THE LINE ACROSS SRN/CENTRAL OH...THOUGH NOT
PRODUCING LIGHTNING AT THIS TIME...COULD POSE A THREAT FOR A FEW
STRONGER WIND GUSTS...MAINLY IN SOUTH CENTRAL TO PERHAPS SERN OH.
FARTHER TO THE N AND NE OVER NERN-EAST CENTRAL OH...THE INFLUX OF
WEAKER LOW LEVEL MOISTURE MAY TEND TO LIMIT STRONGER MOMENTUM FROM
REACHING THE SURFACE.

..PETERS.. 01/30/2013

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

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

LAT...LON   39498301 39808288 39728184 39458143 38508120 37688159
            36438180 36138225 35348394 34678464 33948473 33568488
            33338518 33578535 34988561 35038587 35908497 36438466
            37198401 38358358 39028332 39498301


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