Flood Warning

Locations Affected

Janesville, WI ∙ Afton, WI ∙ Rock, WI ∙ South Beloit, IL ∙ Beloit, WI

Headline

...The Flood Warning continues for the following rivers in Wisconsin...Illinois...
Rock River At Fort Atkinson affecting Jefferson County.
Rock River At Afton affecting Winnebago and Rock Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Additional information is available at www.weather.gov.
The next statement will be issued Friday morning at 800 AM CDT.
&&

Full Alert Message

Flood Statement National Weather Service Milwaukee/Sullivan WI 758 PM CDT Thu Apr 16 2026 ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued Friday morning at 800 AM CDT. && ...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Rock River at Afton. * WHEN...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 7:00 PM CDT Thursday the stage was 9.1 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 PM CDT Thursday was 9.1 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 7 pm... Location stage stage stage/time Fri Sat Sun Mon Afton 9.0 8.0 9.10 7 pm 4/16 10.0 10.4 10.8 11.2 - 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 Afton 9.1 7 pm 4/16 0.98 11.70 7 am 4/23 && LAT...LON 4274 8910 4274 8903 4265 8899 4248 8902 4248 8910 4261 8909

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