

397 

WWUS20 KWNS 020107

SEL2

SPC WW 020107

KYZ000-MDZ000-VAZ000-WVZ000-020600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 452

NWS STORM PREDICTION CENTER NORMAN OK

905 PM EDT SUN JUL 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       EASTERN KENTUCKY

       WESTERN MARYLAND

       WESTERN AND SOUTHWESTERN VIRGINIA

       EASTERN WEST VIRGINIA INCLUDING THE EASTERN PANHANDLE



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 905 PM UNTIL

200 AM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES WEST

NORTHWEST OF MARTINSBURG WEST VIRGINIA TO 60 MILES SOUTHWEST OF

BLUEFIELD WEST VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 445...WW 446...WW

447...WW 448...WW 449...WW 450...WW 451...



DISCUSSION...SEVERAL CLUSTERS OF THUNDERSTORMS ARE SPREADING ACROSS

EASTERN KY/WESTERN WV AND EASTERN OH...PRODUCING LOCALLY DAMAGING

WINDS AND HAIL.  THESE STORMS WILL MOVE ACROSS THE WW AREA THROUGH

THE MID-LATE EVENING.  AS USUAL...THERE IS UNCERTAINTY WHETHER

STORMS CAN MAINTAIN INTENSITY AS THEY MOVE ACROSS THE APPALACHIAN

MOUNTAINS INTO WESTERN VA.  HOWEVER...MODERATE INSTABILITY AND A

SUBTLE SHORTWAVE TROUGH MOVING THROUGH THE AREA SUGGEST THE

POTENTIAL THAT STORMS WILL PERSIST FOR SEVERAL MORE HOURS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 30035.





...HART

