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Tornado Watch 324
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WW0324 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL4

   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 324
   NWS STORM PREDICTION CENTER NORMAN OK
   220 PM MDT SUN JUN 21 2015

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * TORNADO WATCH FOR PORTIONS OF 
     EASTERN MONTANA
     WESTERN AND CENTRAL NORTH DAKOTA
     NORTHERN SOUTH DAKOTA

   * EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 220 PM UNTIL
     1000 PM MDT.

   * PRIMARY THREATS INCLUDE...
     A COUPLE TORNADOES POSSIBLE
     SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
       INCHES IN DIAMETER POSSIBLE
     SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

   SUMMARY...SUPERCELL STORMS ERUPTING ACROSS EASTERN MT AT PRESENT
   WILL CONTINUE TO INCREASE IN COVERAGE AND INTENSITY AS LARGE SCALE
   ASCENT SPREADS EAST FROM THE NORTHERN ROCKIES AND AIDS LEE-SIDE
   CYCLONE DEVELOPMENT. STORMS MAY EVENTUALLY CONGEAL INTO A MORE
   EXTENSIVE BOW ECHO ACROSS THE DAKOTAS THROUGH LATE EVENING WHERE
   DAMAGING WINDS AND LARGE HAIL WILL LIKELY CONTINUE AFTER DARK.
   TORNADO POTENTIAL EXISTS IN THE INITIAL AND TRANSITORY STAGES
   ...ESPECIALLY ACROSS THE INSTABILITY AXIS OVER WESTERN NORTH
   DAKOTA...GIVEN STRENGTHENING LOW AND DEEP-LAYER SHEAR IN THE
   PRESENCE OF HIGHER BOUNDARY LAYER RH.

   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 165 STATUTE
   MILES EAST AND WEST OF A LINE FROM 75 MILES NORTHWEST OF MINOT
   NORTH DAKOTA TO 35 MILES WEST SOUTHWEST OF LEMMON SOUTH DAKOTA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU4).

   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 322...WW 323...

   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
   500. MEAN STORM MOTION VECTOR 28035.


   ...CARBIN
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Page last modified: June 22, 2015
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