Active Weather Alerts
Flood Watch
Issued: 8:11 PM Apr. 16, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall is 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. - 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: 5:25 PM Apr. 16, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON UNTIL FURTHER NOTICE... ...REPLACES RIVER FLOOD WATCH... * WHAT...Moderate flooding is forecast. * WHERE...Rock River at Afton. * WHEN...From this afternoon until further notice. * IMPACTS...At 11.5 feet, Water surrounds at least 2 homes near the river in the Afton area. Numerous secondary roads in the Afton area are closed to traffic. Floodwaters affect South River Road on the south side of Janesville. Traxler Park off of Memorial Drive in Janesville is flooded. * ADDITIONAL DETAILS... - At 12:00 PM CDT Thursday the stage was 9.0 feet. - Bankfull stage is 8.0 feet. - Forecast...The river is expected to rise to 11.7 feet Thursday, April 23. Additional rises are possible thereafter. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 04/10/1959. - 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 1 pm... Location stage stage stage/time Fri Sat Sun Mon Afton 9.0 8.0 8.96 12 pm 4/16 9.8 10.3 10.7 11.1 - 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 Afton 8.96 12 pm 4/16 0.85 11.70 7 am 4/23 &&
River Flood Warning
Issued: 4:52 PM Apr. 16, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SATURDAY MORNING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Sugar River at Brodhead. * WHEN...Until early Saturday morning. * IMPACTS...At 6.0 feet, Some roads are flooded about 6 miles downstream in Avon Township of Rock County, including Beloit Newark Rd. In the Avon Bottoms area of Rock County, flooding is occurring in Sugar River Park. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated. * ADDITIONAL DETAILS... - At 11:00 AM CDT Thursday the stage was 6.1 feet. - Bankfull stage is 4.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Thursday was 6.1 feet. - Forecast...The river is expected to rise to a crest of 6.2 feet this evening. It will then fall below flood stage late tomorrow evening. - Flood stage is 5.0 feet. - Flood History...This crest compares to a previous crest of 6.2 feet on 03/12/1936. - 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 1 pm... Location stage stage stage/time Fri Sat Sun Mon Brodhead 5.0 4.5 6.10 11 am 4/16 5.4 4.3 3.3 2.6 - 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 Brodhead 6.12 10 am 4/16 1.03 6.20 7 pm 4/16 &&
River Flood Warning
Issued: 4:51 PM Apr. 16, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE SATURDAY MORNING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Turtle Creek near Clinton. * WHEN...Until late Saturday morning. * IMPACTS...At 10.0 feet, South Creek Rd threatened north of Inman Parkway east of Beloit. Low-lying private roadways threatened west of Shopiere. Yards of residential structures inundated along Mocassin Trail, Bootmaker Dr, East Ridge Rd, Boulder Lane, Rockfence Lane, and Arrowhead Rd in Beloit. * ADDITIONAL DETAILS... - At 11:00 AM CDT Thursday the stage was 9.5 feet. - Bankfull stage is 6.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Thursday was 9.5 feet. - Forecast...The river is expected to rise to a crest of 10.0 feet this evening. It will then fall below flood stage late tomorrow evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 10.1 feet on 07/12/2008. - 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 1 pm... Location stage stage stage/time Fri Sat Sun Mon Clinton 8.0 6.0 9.49 11 am 4/16 8.8 7.0 5.7 5.2 - 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 Clinton 9.49 11 am 4/16 2.28 10.00 7 pm 4/16 &&
River Flood Watch
Issued: 4:45 PM Apr. 16, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON UNTIL FURTHER NOTICE... * WHAT...Flooding is possible. * WHERE...Rock River near Lake Koshkonong. * WHEN...From Friday afternoon 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 11:00 AM CDT Thursday the stage was 9.0 feet. - Forecast...Flood stage may be reached tomorrow afternoon. - 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 1 pm... Location stage stage stage/time Fri Sat Sun Mon Lake Koshkonong 10.0 9.0 8.97 11 am 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 8.97 10 am 4/16 0.51 11.70 7 am 4/23 &&
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