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169 

WWUS20 KWNS 172003

SEL7

SPC WW 172003

IAZ000-MNZ000-SDZ000-180300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 267

NWS STORM PREDICTION CENTER NORMAN OK

305 PM CDT FRI JUN 17 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWEST IOWA

  SOUTHERN MINNESOTA

  EASTERN SOUTH DAKOTA



* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 305 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



SUMMARY...RELATIVELY ISOLATED STRONG TO SEVERE THUNDERSTORMS MAY

CONTINUE TO INCREASE IN COVERAGE ESPECIALLY ACROSS

SOUTHWEST/SOUTH-CENTRAL MINNESOTA OVER THE NEXT FEW HOURS...WITH

ADDITIONAL DEVELOPMENT ANTICIPATED LATER THIS AFTERNOON AND EARLY

EVENING ACROSS EASTERN SOUTH DAKOTA/NORTHWEST IOWA. WHILE VERTICAL

SHEAR IS WEAK...STEEP LAPSE RATES AND STRONG INSTABILITY WILL

SUPPORT AT LEAST SOME POTENTIAL FOR DAMAGING WINDS AND HAIL.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH

NORTHEAST OF MANKATO MINNESOTA TO 35 MILES WEST SOUTHWEST OF

MITCHELL SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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 265...WW 266...



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 33015.





...GUYER

