Wednesday, June 4, 2008

Heavy Hitters on the way ! Between 4:00 PM and 9:00 PM this Evening

Issued 12:00 PM
Wednesday: 6/4/08

Very Strong to possibly Severe thunderstorms will move through the Delaware Valley between 4:00 Pm and 9:00 PM this Wednesday Evening ! Some storms could contain very heavy rain with some flooding, Strong damaging winds, Hail, and very dangerous Cloud to ground lightning.

The Western Suburbs of PHL should see these storms sometime between 4:00 PM and 5:00 PM, with areas from PHL and eastward into NJ and DE between 5:00 PM and 9:00 PM.

A Severe Thunderstorm or Tornado Watch could be issued for later afternoon into this evening for our region. There's now a Tornado Watch box to our west over WV into parts of VA and MD. An area of strong to Severe storms are now moving through these areas. As they continue to move east this afternoon a squall time and super cells will continue to develop. Our area is now in a moderate risk for severe weather, so be alert for potentially strong to Severe Storms later this afternoon and into the evening hours.

My thinking is Eastern MD, All of DE, and Southern NJ, will have the best chance for Severe Thunderstorms. Some additional heating has occured in these areas from a break line that's allowed for some sunshine out ahead of this approaching area of Severe weather to our west. This will aid to increase the instability for areas that recieved these breaks in the clouds and sunshine.

Ruggie
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2:55 PM A Tornado Watch has been Issued for much of the Delaware Valley through 8:00 PM this Evening.

Click to see Watch Box Map and Discussion from The SPC
http://www.spc.noaa.gov/products/watch/ww0449.html


URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 449 NWS STORM PREDICTION CENTER NORMAN OK 255 PM EDT WED JUN 4 2008 THE

NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF
DELAWARE
EASTERN MARYLAND
SOUTHERN NEW JERSEY
SOUTHEAST PENNSYLVANIA
COASTAL WATERS

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM UNTIL 800 PM EDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH NORTHEAST OF PHILADELPHIA PENNSYLVANIA TO 15 MILES EAST OF WALLOPS VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. OTHER WATCH INFORMATION...CONTINUE...WW 446...WW 447...WW 448... DISCUSSION...FAST-MOVING BOW ECHO CURRENTLY APPROACHING THE DC METRO AREA WILL CONTINUE EASTWARD INTO THIS REGION IN THE NEXT FEW HOURS. A SIGNIFICANT THREAT FOR DAMAGING WINDS IS EXPECTED WITH THESE STORMS...AS WELL AS ISOLATED TORNADOES ALONG THE LEADING EDGE. STRONG INSTABILITY WILL ALSO POSE A THREAT FOR ISOLATED THUNDERSTORM DEVELOPMENT AHEAD OF AND SOUTH OF SQUALL LINE. AVIATION...TORNADOES AND 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 27045. ...HART
SEL9

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