

602 

WWUS20 KWNS 092214

SEL7

SPC WW 092214

WIZ000-LMZ000-100400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 47

NWS STORM PREDICTION CENTER NORMAN OK

515 PM CDT THU APR 9 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHERN WISCONSIN

  LAKE MICHIGAN



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 515 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST

OF LONEROCK WISCONSIN TO 40 MILES SOUTHEAST OF MANITOWOC

WISCONSIN.  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 39...WW 40...WW 41...WW

42...WW 43...WW 44...WW 45...WW 46...



DISCUSSION...THUNDERSTORMS ARE INCREASING OVER SOUTHWEST

WI...TRACKING NORTHEASTWARD INTO THE WATCH AREA.  COOL/STABLE

SURFACE CONDITIONS SHOULD LESSEN THE TORNADO AND DAMAGING WIND

THREAT IN THIS AREA...BUT LARGE HAIL WILL BE POSSIBLE IN THE

STRONGEST CELLS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24035.





...HART



325 

WWUS20 KWNS 092214

SEL7

SPC WW 092214

WIZ000-LMZ000-100400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 47

NWS STORM PREDICTION CENTER NORMAN OK

515 PM CDT THU APR 9 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHERN WISCONSIN

  LAKE MICHIGAN



* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 515 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES SOUTHWEST

OF LONEROCK WISCONSIN TO 40 MILES SOUTHEAST OF MANITOWOC

WISCONSIN.  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 39...WW 40...WW 41...WW

42...WW 43...WW 44...WW 45...WW 46...



DISCUSSION...THUNDERSTORMS ARE INCREASING OVER SOUTHWEST

WI...TRACKING NORTHEASTWARD INTO THE WATCH AREA.  COOL/STABLE

SURFACE CONDITIONS SHOULD LESSEN THE TORNADO AND DAMAGING WIND

THREAT IN THIS AREA...BUT LARGE HAIL WILL BE POSSIBLE IN THE

STRONGEST CELLS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 55

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24035.





...HART

