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989 

WWUS20 KWNS 222104

SEL0

SPC WW 222104

MTZ000-NDZ000-SDZ000-230400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 410

NWS STORM PREDICTION CENTER NORMAN OK

405 PM CDT FRI JUL 22 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN MONTANA

  WESTERN AND CENTRAL NORTH DAKOTA

  NORTHWEST AND NORTH CENTRAL SOUTH DAKOTA



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 405 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3

    INCHES IN DIAMETER POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...STORMS ARE EXPECTED TO CONTINUE DEVELOPING AND INTENSIFY

FROM SOUTHEAST MONTANA INTO NORTHWEST SOUTH DAKOTA AND SOUTHWEST

NORTH DAKOTA OVER THE NEXT SEVERAL HOURS.  AS THE ACTIVITY SPREADS

NORTHEASTWARD WITH TIME...THE STORMS MAY DEVELOP INTO A LARGER STORM

COMPLEX WITH POTENTIAL FOR VERY LARGE HAIL AND DAMAGING WIND GUSTS

TO PROGRESS ACROSS THE AREA.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES NORTH AND SOUTH OF A LINE FROM MILES CITY MONTANA

TO 45 MILES EAST NORTHEAST OF BISMARCK NORTH DAKOTA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU0).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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...CONTINUE...WW 408...WW 409...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 24025.





...WEISS

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