Tornado Watch much of Wisconsin until 9 PM. The greatest potential for damaging storms is now south and east of the Twin Cities. NOAA has issued a Tornado Watch, including western Wisconsin counties, until 9 pm. The storms near Mankato may force the issuance of a second watch box over southeastern Minnesota shortly. Details on the Wisconsin watch:
URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 242 NWS STORM PREDICTION CENTER NORMAN OK 240 PM CDT FRI JUN 10 2016 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF WESTERN AND CENTRAL UPPER MICHIGAN NORTHERN AND WEST CENTRAL WISCONSIN LAKE SUPERIOR * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 240 PM UNTIL 900 PM CDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE SUMMARY...THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING AND INTENSIFY FROM NORTHWESTERN WISCONSIN INTO WEST-CENTRAL WISCONSIN AND SPREAD EASTWARD THROUGH THE EVENING HOURS. A FEW TORNADOES MAY BE POSSIBLE WITH STRONGER STORMS...ALONG WITH A MORE WIDESPREAD THREAT FOR DAMAGING WIND GUSTS AND HAIL. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES EAST NORTHEAST OF IRONWOOD MICHIGAN TO 20 MILES EAST OF EAU CLAIRE WISCONSIN. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. AVIATION...TORNADOES AND 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 27030.
Developing Squall Line. The 3:30 pm visible satellite loop shows storms firing just south of MSP; a few will remain severe with large hail and potentially damaging winds.
Doppler Radar at 3:28 pm. Storms are severe from near Madelia to Mankato and St. Peter with 1-2" diameter hail estimates. Storms were also firing along the Minnesota River over the south metro - a few of these may pack hail and damaging wind gusts for the next 30-90 minutes.