ZCZC SPCSWOMCD ALL
ACUS11 KWNS 142037 
SPC MCD 142037 
PAZ000-MDZ000-WVZ000-OHZ000-KYZ000-INZ000-142200-

MESOSCALE DISCUSSION 1417
NWS STORM PREDICTION CENTER NORMAN OK
0337 PM CDT TUE JUL 14 2015

AREAS AFFECTED...OH VALLEY

CONCERNING...SEVERE THUNDERSTORM WATCH 421...

VALID 142037Z - 142200Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 421
CONTINUES.

SUMMARY...SEVERE THREAT WILL SPREAD ACROSS THE REMAINDER OF WW421
OVER THE NEXT SEVERAL HOURS.

DISCUSSION...WELL-ORGANIZED SQUALL LINE HAS EVOLVED OVER WW421. 
THIS LINE OF CONVECTION HAS SURGED THROUGH ALL BUT SRN AND ERN PARTS
OF SEVERE THUNDERSTORM WATCH.  THIS ACTIVITY SHOULD PROGRESS ACROSS
THE OH RIVER SHORTLY WITH GREATEST SURGE EXPECTED TOWARD CNTRL WV. 
LATEST RADAR TRENDS SUGGEST LEADING EDGE OF SQUALL LINE IS
PROGRESSING AT 35KT WHICH TRANSLATES INTO POCAHONTAS COUNTY WV BY
23Z.  DAMAGING WINDS ARE THE GREATEST THREAT WITH THESE STORMS.

ALONG THE WRN FLANK OF THIS ACTIVITY THE SWD MOVEMENT OF STORMS INTO
KY IS ON THE ORDER OF 20KT SUGGESTING PRIMARY SEVERE THREAT WILL
REMAIN IN CURRENT WW FOR THE NEXT 1-2 HOURS.  WITH TIME ORGANIZED
CONVECTION SHOULD SPREAD INTO NRN PORTIONS OF JKL AND LMK CWA LIKELY
WARRANTING A NEW WW.

..DARROW.. 07/14/2015

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

ATTN...WFO...CTP...LWX...PBZ...RLX...CLE...JKL...ILN...LMK...
IWX...IND...

LAT...LON   40628536 41577935 39127936 38178536 40628536 

NNNN