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WWUS20 KWNS 011719

SEL0

SPC WW 011719

OHZ000-WVZ000-LEZ000-020100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 710

NWS STORM PREDICTION CENTER NORMAN OK

120 PM EDT MON AUG 1 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL OHIO

       FAR NORTHERN WEST VIRGINIA

       LAKE ERIE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 120 PM UNTIL 900

PM 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 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST

SOUTHWEST OF TOLEDO OHIO TO 25 MILES SOUTH SOUTHEAST OF

YOUNGSTOWN OHIO.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 709...



DISCUSSION...TSTM WILL LIKELY CONTINUE TO INTENSIFY THIS AFTERNOON

AHEAD OF SURFACE FRONT WHERE AIR MASS HAS BECOME STRONGLY UNSTABLE

WITH MLCAPE OF 3000 J/KG.  THE PRESENCE OF STEEP MIDLEVEL LAPSE

RATES AND 40 KT OF DEEP NWLY SHEAR /REF. 12Z DTX SOUNDING/ WILL

PROMOTE SUPERCELLS CAPABLE OF LARGE HAIL AND DAMAGING WINDS WITH

ACTIVITY SPREADING SWD/SEWD ACROSS WATCH AREA.



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 33030.





...MEAD

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