Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >
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Hot and unstable air over south central Wisconsin interacted with a slow-moving boundary to cause a long-lived cluster of severe thunderstorms over Columbia County during the afternoon of June 16th, mostly between 330 pm and 630 pm CDT. Trees were blown down in the Portage, Poynette and Rio areas. Also, large hail was reported, with hail as large as golf balls near Poynette. Around 5 pm, a weak low level circulation developed in one of the thunderstorms that eventually produced a weak tornado about 4 miles northeast of Poynette near the intersection of Highway B and Dunning Road. |
Tornadoes:
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Tornado - LOCATION
Track Map  
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Radar:
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 924 PM CDT SAT JUN 16 2018 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0642 PM HAIL 5 NNW POYNETTE 43.46N 89.45W 06/16/2018 E1.00 INCH COLUMBIA WI TRAINED SPOTTER REPORTED IN DEKORRA. 0611 PM HAIL 5 NNW POYNETTE 43.46N 89.45W 06/16/2018 E1.00 INCH COLUMBIA WI PUBLIC MPING REPORT. 0556 PM HAIL 5 NW POYNETTE 43.45N 89.47W 06/16/2018 E1.75 INCH COLUMBIA WI LAW ENFORCEMENT 0554 PM HAIL 6 SSW PORTAGE 43.47N 89.50W 06/16/2018 E1.25 INCH COLUMBIA WI PUBLIC MPING REPORT. 0535 PM HAIL PORTAGE 43.54N 89.46W 06/16/2018 E1.00 INCH COLUMBIA WI 911 CALL CENTER 0525 PM TORNADO 4 NE POYNETTE 43.44N 89.36W 06/16/2018 COLUMBIA WI TRAINED SPOTTER BRIEF WEAK TORNADO ON THE GROUND FOR APPROX 3-4 MINS CAUSED TREE DAMAGE NEAR THE INTERSECTION OF HIGHWAY B AND DUNNING ROAD. REPORT CONFIRMED BY SOCIAL MEDIA PICTURE AND DAMAGE REPORT FROM SHERIFF`S OFFICE. 0515 PM TSTM WND DMG 4 SW RIO 43.42N 89.30W 06/16/2018 COLUMBIA WI PUBLIC PICTURES FROM SOCIAL MEDIA SHOW TREES DOWN ACROSS TRAUT ROAD WITH POWER LINES DOWN TOO. TIME ESTIMATED FROM RADAR. 0450 PM TSTM WND DMG 5 N POYNETTE 43.46N 89.41W 06/16/2018 COLUMBIA WI 911 CALL CENTER TREES AND POWER LINES DOWN SOUTH OF PORTAGE. 0400 PM TSTM WND DMG 1 ESE PORTAGE 43.54N 89.45W 06/16/2018 COLUMBIA WI 911 CALL CENTER TREES DOWN AROUND PORTAGE. 0335 PM TSTM WND DMG BARABOO 43.47N 89.73W 06/16/2018 SAUK WI 911 CALL CENTER TREE BLOWN DOWN OVER A DRIVEWAY.
0730 AM HEAVY RAIN 7 SW PORTAGE 43.48N 89.57W
06/17/2018 M3.58 INCH COLUMBIA WI COCORAHS
7.2 SW PORTAGE - STATION WI-CB-5.
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