The Palm Sunday, March 28, 2010, Severe Thunderstorm Outbreak

Severe Thunderstorm Threat From the Central Plains to the Northeast; Extreme HeatRisk for the East Coast

Strong to severe thunderstorms are possible from the central Plains to the Northeast through this evening. Widespread damaging winds are the primary threat but hail and a tornado or two is also possible. Extremely dangerous heat continues across the Eastern U.S. Warm overnight low temperatures will provide little to no relief. Read More >

URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 37 NWS STORM PREDICTION CENTER NORMAN OK 350 PM EDT SUN MAR 28 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHEAST GEORGIA WEST CENTRAL NORTH CAROLINA CENTRAL AND UPSTATE SOUTH CAROLINA EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 350 PM UNTIL 1100 PM EDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF ATHENS GEORGIA TO 35 MILES EAST SOUTHEAST OF CHARLOTTE NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). 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. DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING OVER PORTIONS OF NORTHERN GA AND CENTRAL SC...IN VICINITY OF A RETREATING SURFACE BOUNDARY. VAD PROFILES AND FORECAST SOUNDINGS OVER THIS REGION SHOW FAVORABLE LOW LEVEL AND DEEP LAYER VERTICAL SHEAR PROFILES FOR SUPERCELLS CAPABLE OF LARGE HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES. POTENTIAL EXISTS FOR MULTIPLE PERIODS OF CONVECTION THROUGH THE AFTERNOON AND EVENING ACROSS THE WATCH AREA. AVIATION...TORNADOES AND 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 450. MEAN STORM MOTION VECTOR 24035. ...HART