

590 

WWUS20 KWNS 152023

SEL1

SPC WW 152023

IDZ000-UTZ000-WYZ000-160500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 301

NWS STORM PREDICTION CENTER NORMAN OK

220 PM MDT MON JUN 15 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST IDAHO

  NORTHERN UTAH

  SOUTHERN AND CENTRAL WYOMING



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 220 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2 INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...THUNDERSTORMS WITH A RISK FOR LOCALLY DAMAGING WIND AND

MARGINALLY SEVERE HAIL EXPECTED TO MOVE/DEVELOP GENERALLY WEST TO

EAST ACROSS PARTS OF SOUTHERN AND EASTERN IDAHO...NORTHERN

UTAH...AND WESTERN AND CENTRAL WYOMING LATER THIS AFTERNOON AND

EVENING. FARTHER EAST...OTHER STORMS...INCLUDING A FEW SUPERCELLS

WITH LARGE HAIL...LOCALLY DAMAGING WIND...AND POSSIBLY A

TORNADO...MAY OCCUR OVER EAST CENTRAL AND SOUTHEAST WYOMING THROUGH

LATER TONIGHT.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST

SOUTHWEST OF MALAD CITY IDAHO TO 35 MILES EAST OF DOUGLAS

WYOMING.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



&&



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 28020.





...CORFIDI



275 

WWUS20 KWNS 152023

SEL1

SPC WW 152023

IDZ000-UTZ000-WYZ000-160500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 301

NWS STORM PREDICTION CENTER NORMAN OK

220 PM MDT MON JUN 15 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHEAST IDAHO

  NORTHERN UTAH

  SOUTHERN AND CENTRAL WYOMING



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 220 PM UNTIL

  1100 PM MDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2 INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...THUNDERSTORMS WITH A RISK FOR LOCALLY DAMAGING WIND AND

MARGINALLY SEVERE HAIL EXPECTED TO MOVE/DEVELOP GENERALLY WEST TO

EAST ACROSS PARTS OF SOUTHERN AND EASTERN IDAHO...NORTHERN

UTAH...AND WESTERN AND CENTRAL WYOMING LATER THIS AFTERNOON AND

EVENING. FARTHER EAST...OTHER STORMS...INCLUDING A FEW SUPERCELLS

WITH LARGE HAIL...LOCALLY DAMAGING WIND...AND POSSIBLY A

TORNADO...MAY OCCUR OVER EAST CENTRAL AND SOUTHEAST WYOMING THROUGH

LATER TONIGHT.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST

SOUTHWEST OF MALAD CITY IDAHO TO 35 MILES EAST OF DOUGLAS

WYOMING.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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.



&&



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 28020.





...CORFIDI

