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Wednesday, June 12, 2013

Dangerous Weather Situation Indiana, Kentucky and Pennsylvania


 I know I have some friends in Pennsylvania. Read the following and keep on your toes.


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 302
NWS STORM PREDICTION CENTER NORMAN OK
1150 PM EDT WED JUN 12 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEAST INDIANA
EXTREME NORTHEAST KENTUCKY
WESTERN MARYLAND
MUCH OF OHIO
SOUTHWEST PENNSYLVANIA
CENTRAL AND NORTHERN WEST VIRGINIA
LAKE ERIE

* EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1150
PM UNTIL 600 AM EDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

* PRIMARY THREATS INCLUDE...
NUMEROUS SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH LIKELY
SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
A FEW TORNADOES POSSIBLE


THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH
SOUTHEAST OF LATROBE PENNSYLVANIA TO 25 MILES WEST OF DAYTON
OHIO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 300...WW 301...

DISCUSSION...A LARGE BOW ECHO HAS BECOME ESTABLISHED ALONG THE
IND/OH BORDER AND IS RACING EAST-SOUTHEASTWARD AT 45-50 KT. THIS
SYSTEM MAY RESULT IN A CORRIDOR OF WIDESPREAD SIGNIFICANT WIND
DAMAGE /DERECHO/ ACROSS CENTRAL OH OVER THE NEXT SEVERAL HOURS.

SURROUNDING THE CORRIDOR OF GREATEST RISK...SCATTERED SEVERE STORMS
WILL POSE A RISK OF DAMAGING WINDS AND HAIL THROUGH 10Z. AN
ISOLATED TORNADO IS ALSO POSSIBLE ALONG THE LEADING EDGE OF THE
BOW...AS WELL AS ASSOCIATED WITH DISCRETE CELLS AHEAD OF THE SYSTEM.


AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28045