SPC Severe Thunderstorm Watch 662
Tue, 14 Sep 2010 21:56:02 -0500
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 662 NWS STORM PREDICTION CENTER NORMAN OK 955 PM CDT TUE SEP 14 2010 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF CENTRAL AND EASTERN SOUTH DAKOTA EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 955 PM UNTIL 500 AM CDT. 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 95 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTHWEST OF PHILIP SOUTH DAKOTA TO 35 MILES EAST NORTHEAST OF HURON SOUTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). 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...THIS SEVERE THUNDERSTORM WATCH REPLACES TORNADO WATCH NUMBER 660. WATCH NUMBER 660 WILL NOT BE IN EFFECT AFTER 955 PM CDT. CONTINUE...WW 661... DISCUSSION...SLIGHTLY ELEVATED TSTMS/POSSIBLE SUPERCELLS EXPECTED TO INCREASE IN COVERAGE AND STRENGTH THROUGH EARLY WED AS SLY LLJ/WAA INCREASE AHEAD OF WY/CO UPR IMPULSE. MODERATELY STRONG UNIDIRECTIONAL CLOUD LAYER SHEAR AND DEEP EML SUGGEST POTENTIAL FOR SVR HAIL AND POSSIBLY LOCALLY DMGG WIND...ESPECIALLY DURING EARLY STAGES OF STORM DEVELOPMENT. 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 27030. ...CORFIDIRead more
SPC Severe Thunderstorm Watch 662 Status Reports
Tue, 14 Sep 2010 21:56:10 -0500
STATUS FOR WATCH 0662 HAS NOT BEEN ISSUED YETRead more
SPC Severe Thunderstorm Watch 661 Status Reports
Tue, 14 Sep 2010 19:32:11 -0500
STATUS FOR WATCH 0661 HAS NOT BEEN ISSUED YETRead more
SPC Tornado Watch 660 Status Reports
Tue, 14 Sep 2010 19:00:06 -0500
STATUS FOR WATCH 0660 HAS NOT BEEN ISSUED YETRead more
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