

808 

WWUS20 KWNS 192219

SEL3

SPC WW 192219

MNZ000-WIZ000-LSZ000-200400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 273

NWS STORM PREDICTION CENTER NORMAN OK

520 PM CDT SUN JUN 19 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WEST CENTRAL INTO NORTHEAST MINNESOTA

  EXTREME NORTHWEST WISCONSIN

  LAKE SUPERIOR



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 520 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...THUNDERSTORMS WILL DEVELOP THE NEXT FEW HOURS ALONG AND

JUST AHEAD OF A COLD FRONT MOVING SOUTHEASTWARD ACROSS MINNESOTA.

THE STORM ENVIRONMENT WILL INITIALLY FAVOR SEMI-DISCRETE SUPERCELLS

CAPABLE OF PRODUCING VERY LARGE HAIL AND DAMAGING WINDS.  A TORNADO

OR TWO WILL ALSO BE POSSIBLE IN THE FIRST COUPLE OF HOURS AFTER

STORM DEVELOPMENT.  LATER THIS EVENING...STORMS WILL SPREAD TO THE

SOUTHEAST AND GRADUALLY MERGE INTO LINE SEGMENTS...WITH A CONTINUED

WIND/HAIL RISK.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTH

NORTHEAST OF SILVER BAY MINNESOTA TO 55 MILES SOUTHWEST OF

ALEXANDRIA MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 27035.





...THOMPSON

