TORNADO WATCH NUMBER 293 NWS STORM PREDICTION CENTER NORMAN OK 200 PM EDT MON JUN 10 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF DISTRICT OF COLUMBIA DELAWARE MUCH OF MARYLAND NORTHERN NORTH CAROLINA SOUTHERN NEW JERSEY SOUTHEAST PENNSYLVANIA MUCH OF VIRGINIA THE EASTERN PANHANDLE OF WEST VIRGINIA COASTAL WATERS * EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 200 PM UNTIL 1000 PM EDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES LIKELY NUMEROUS DAMAGING WIND GUSTS TO 70 MPH LIKELY THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTHWEST OF SOUTH HILL VIRGINIA TO 30 MILES NORTHWEST OF WILMINGTON DELAWARE. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 292... DISCUSSION...TSTMS EXPECTED TO DEVELOP/PERSIST THROUGH THIS EVE ALONG THE NRN EXTENSIONS OF THE SAME THE CONFLUENCE AXES RESPONSIBLE FOR STORMS NOW IN THE CAROLINAS. WHILE MID-LVL LAPSE RATES WILL REMAIN MODEST...SFC HEATING AND FAIRLY RICH LOW-LVL MOISTURE SHOULD YIELD SUFFICIENT BUOYANCY FOR SUSTAINED STORMS AND POSSIBLE SUPERCELLS GIVEN STRENGTHENING MID-LVL FLOW /WITH SWLY 500 MB FLOW AROUND 50 KTS/ AND ASCENT EXPECTED WITH THE CONTINUED EWD MOVEMENT OF TN VLY UPR TROUGH. POTENTIAL FOR LOW-LVL MESOCYCLONES MAY BE ENHANCED NEAR DIFFUSE WARM FRONT IN SE PA/NE MD/DE. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 23030. ...CORFIDI ====================================================================== 560 WWUS40 KWNS 101809 WWP3 TORNADO WATCH PROBABILITIES FOR WT 0293 NWS STORM PREDICTION CENTER NORMAN OK 0102 PM CDT MON JUN 10 2013 WT 0293 PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 60% PROB OF 1 OR MORE STRONG /F2-F5/ TORNADOES : 20% PROB OF 10 OR MORE SEVERE WIND EVENTS : 80% PROB OF 1 OR MORE WIND EVENTS >= 65 KNOTS : = 2 INCHES : 95% && ATTRIBUTE TABLE: MAX HAIL /INCHES/ : 1.0 MAX WIND GUSTS SURFACE /KNOTS/ : 60 MAX TOPS /X 100 FEET/ : 500 MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 23030 PARTICULARLY DANGEROUS SITUATION : NO && FOR A COMPLETE GEOGRAPHICAL DEPICTION OF THE WATCH AND WATCH EXPIRATION INFORMATION SEE WOUS64 FOR WOU3.
Posted on: Mon, 10 Jun 2013 18:17:34 +0000
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