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WWUS20 KWNS 211807

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 426

NWS STORM PREDICTION CENTER NORMAN OK

110 PM CDT MON JUL 21 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  WESTERN AND CENTRAL NORTH DAKOTA



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 110 PM UNTIL

  700 PM CDT.



* PRIMARY THREATS INCLUDE...

  A COUPLE TORNADOES POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 3 INCHES IN DIAMETER POSSIBLE

  SCATTERED 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 45 MILES EAST OF LEMMON SOUTH

DAKOTA TO 60 MILES NORTH NORTHEAST OF MINOT NORTH DAKOTA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU6).



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.



&&



DISCUSSION...THUNDERSTORMS ARE INTENSIFYING OVER WESTERN ND.  THIS

ACTIVITY WILL CONTINUE TO GROW AND BUILD EASTWARD ACROSS THE WATCH

AREA DURING THE AFTERNOON.  VERY HUMID CONDITIONS AND STRONG DAYTIME

HEATING WILL RESULT IN EXTREME INSTABILITY.  SUPERCELLS CAPABLE OF

VERY LARGE HAIL AND DAMAGING WINDS ARE EXPECTED.  COMBINED WITH

STRONG WINDS ALOFT AND THE PRESENCE OF SURFACE BOUNDARIES...ISOLATED

TORNADOES WILL BE POSSIBLE.  STORMS WILL EVENTUALLY DEVELOP INTO A

LARGE BOWING COMPLEX.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 24035.





...HART

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