Severe Storm Outlook Narrative (AC)
Issued by NWS

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000
ACUS11 KWNS 301949
SWOMCD
SPC MCD 301948
PAZ000-VAZ000-MDZ000-WVZ000-OHZ000-KYZ000-302145-

MESOSCALE DISCUSSION 1249
NWS STORM PREDICTION CENTER NORMAN OK
0248 PM CDT TUE JUN 30 2015

AREAS AFFECTED...PORTIONS OF OH/PA/MD/VA/WV/KY

CONCERNING...SEVERE THUNDERSTORM WATCH 371...372...373...

VALID 301948Z - 302145Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
371...372...373...CONTINUES.

SUMMARY...THE RISK FOR TSTMS WITH DMGG WINDS AND HAIL CONTINUES
ACROSS REMAINING-VALID PORTIONS OF THE SEVERE THUNDERSTORM WATCH
AREAS.

DISCUSSION...ONGOING CONVECTIVE CLUSTERS CONTINUE TO GROW INTO A
LOOSELY ORGANIZED MCS WITH A LEADING LINE FROM FAR NRN KY TO
S-CNTRL/E-CNTRL OHIO. THIS ACTIVITY WILL CONTINUE TO SPREAD EWD
TOWARD/ACROSS THE OHIO RIVER VALLEY. ADDITIONAL TSTMS MAY
POTENTIALLY DEVELOP IN ADVANCE OF THIS SYSTEM THROUGH PEAK
HEATING...WHICH IS SUPPORTING 500-1500 J/KG OF MLCAPE.
PBZ...JKL...AND RLX VWPS CONTINUE TO DEPICT AROUND 20-30 KT OF WLY
FLOW IN THE 2-3-KM LAYER THAT MAY SUPPORT ISOLATED TO WIDELY
SCATTERED DMGG WIND GUSTS VIA CONVECTIVE MOMENTUM TRANSPORT --
ESPECIALLY WITH ACTIVITY SPREADING ACROSS PARTS OF THE MIDDLE/UPPER
OHIO VALLEY IN THE SHORT-TERM.

..COHEN.. 06/30/2015

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

ATTN...WFO...CTP...LWX...RNK...PBZ...RLX...CLE...MRX...JKL...
ILN...LMK...

LAT...LON   38648486 38888340 39368216 40688136 41298040 41617932
            41597804 41027749 40077749 38707783 37277906 36698079
            36808277 37438436 38648486




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