Active Weather Alerts
Dense Fog Advisory
Issued: 7:46 AM Apr. 17, 2026 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...Fond du Lac, Rock, Dodge, and Jefferson Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&
Flood Watch
Issued: 4:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central, south central, and southeast Wisconsin, including the following counties, in east central Wisconsin, Fond du Lac and Sheboygan. In south central Wisconsin, Dane, Green, Green Lake, Iowa, Lafayette, Marquette and Rock. In southeast Wisconsin, Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...From Friday afternoon through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Excessive rain on saturated ground may result in flooding. An additional 1 to 2 inches of rainfall is likely, with locally higher amounts possible. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
River Flood Warning
Issued: 2:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Rock River at Jefferson. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Riverview Drive is closed due to floodwaters on the road. The Tensfeldt Park boat launch is closed. Intersection of S Main St and E Dane St is closed, and S Center Ave. Floodwaters affect highway K between Jefferson and Fort Atkinson. River's Edge Park flooded. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 10.4 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Thursday was 10.4 feet. - Forecast...The river is expected to rise to 12.4 feet early Wednesday morning. Additional rises are possible thereafter. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 12.3 feet on 04/20/2013. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 7 pm... Location stage stage stage/time Fri Sat Sun Mon Jefferson 10.0 8.0 10.38 9 pm 4/16 11.1 11.7 12.1 12.3 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days Jefferson 10.38 9 pm 4/16 0.86 12.40 7 pm 4/23 &&
River Flood Warning
Issued: 2:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is forecast. * WHERE...Crawfish River at Milford. * WHEN...Until further notice. * IMPACTS...At 8.0 feet, There is widespread flooding of agricultural land and lowland. There is widespread flooding in Riverbend Campground, about 5 miles upstream of Milford. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 6.8 feet. - Bankfull stage is 5.0 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight and continue rising to a crest of 8.1 feet early Monday morning. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 8.1 feet on 10/15/2018. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 7 pm... Location stage stage stage/time Fri Sat Sun Mon Milford 7.0 5.0 6.84 9 pm 4/16 7.4 7.8 8.0 8.1 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days Milford 6.84 9 pm 4/16 0.60 8.10 1 pm 4/22 &&
River Flood Warning
Issued: 2:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is forecast. * WHERE...Rock River at Fort Atkinson. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, Floodwaters are in the back yards of some homes on Rogers Street on the northeast side of Fort Atkinson and water surrounds a few homes and businesses at the end of Vets Lane near the intersection of Hwy 106 and Blackhawk Island Rd. These roads are flooded in the Fort Atkinson area: Sinissippi Drive, Vets Ln, Fox Hill Rd, Bark River Road from Kutz Road to Rock River Road, Rock River Rd from Milwaukee Ave E to Hwy 106, North Shore Rd, Ralph Rd. The river walkway in Fort Atkinson becomes flooded. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 15.9 feet. - Bankfull stage is 14.5 feet. - Forecast...The river is expected to rise above flood stage late this evening and continue rising to a crest of 16.8 feet Monday evening. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 16.8 feet on 10/12/2019. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 7 pm... Location stage stage stage/time Fri Sat Sun Mon Fort Atkinson 16.0 14.5 15.88 9 pm 4/16 16.4 16.5 16.7 16.8 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days Fort Atkinson 15.88 8 pm 4/16 0.85 16.80 1 am 4/22 &&
River Flood Warning
Issued: 2:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Moderate flooding is forecast. * WHERE...Rock River at Watertown. * WHEN...Until further notice. * IMPACTS...At 6.5 feet, Floodwaters affect some streets in Watertown. Water is in Riverside Park. About 6 miles upstream near Ixonia, Wayside park along Highway 16 and Kanow Park is flooded. Rock River Road near Highway 16 is flooded. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 5.4 feet. - Bankfull stage is 4.0 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning and continue rising to 6.4 feet early Wednesday morning. Additional rises are possible thereafter. - Flood stage is 5.5 feet. - Flood History...This crest compares to a previous crest of 6.3 feet on 04/04/1959. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 7 pm... Location stage stage stage/time Fri Sat Sun Mon Watertown 5.5 4.0 5.35 9 pm 4/16 5.6 5.9 6.1 6.2 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days Watertown 6.0 10 am 4/15 0.09 6.40 7 pm 4/23 &&
River Flood Watch
Issued: 2:57 AM Apr. 17, 2026 – National Weather Service
...FLOOD WATCH NOW IN EFFECT FROM FRIDAY EVENING UNTIL FURTHER NOTICE... * WHAT...Flooding is possible. * WHERE...Rock River near Lake Koshkonong. * WHEN...From Friday evening until further notice. * IMPACTS...At 11.3 feet, There is knee-deep water over Blackhawk Island Road. Lamp Road on west side of river also becomes flooded. Lake Koshkonong merges with Mud Lake to the east of Lake Koshkonong. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 9.2 feet. - Forecast...Flood stage may be reached late tomorrow evening. - Flood stage is 10.0 feet. - http://www.weather.gov/safety/flood && River forecasts are available for some but not all river gaging locations. The 7 day river forecast takes into account past precipitation, soil moisture conditions, and predicted precipitation for the basin. Precipitation is for the next 24 hours in the future from April through September and for 48 hours in the future from October through March. (Stages in ft.) Bank- Latest Forecast stages - Flood full observed ...for 7 pm... Location stage stage stage/time Fri Sat Sun Mon Lake Koshkonong 10.0 9.0 9.17 9 pm 4/16 9.9 10.5 11.0 11.3 - Highest 24 hour change - observed in river stage - stage in (ft.) up to Highest stage - the last latest observed forecast in - 7 days stage next 7 days Lake Koshkonong 9.17 9 pm 4/16 0.48 11.70 7 pm 4/23 &&
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