Tornado Watch #673

A tornado watch has been issued for the west half of North Dakota, and NW South Dakota.

URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 673
   NWS STORM PREDICTION CENTER NORMAN OK
   535 PM CDT FRI JUL 22 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          WESTERN AND SOUTHERN NORTH DAKOTA
          NORTHERN SOUTH DAKOTA
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND SATURDAY MORNING FROM 535 PM
   UNTIL 200 AM CDT.
   
   TORNADOES...HAIL TO 3 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 90 STATUTE
   MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHWEST OF MINOT
   NORTH DAKOTA TO 55 MILES SOUTH OF LEMMON SOUTH DAKOTA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU3).
   
   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.