Active Weather Alerts
River Flood Warning
Issued: 8:57 PM Apr. 18, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY WEDNESDAY MORNING... * WHAT...Minor flooding is forecast. * WHERE...Baraboo River near Baraboo. * WHEN...Until early Wednesday morning. * IMPACTS...At 17.0 feet, If Wisconsin River at Portage up to 17 feet also, water impacts parking lots near Hwy 33 and water over Tritz Rd near Hwy 33. There is widespread flooding of agricultural land. * ADDITIONAL DETAILS... - At 3:00 PM CDT Saturday the stage was 15.8 feet. - Bankfull stage is 14.0 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 17.0 feet Monday morning. It will then fall below flood stage late Tuesday evening. - Flood stage is 16.0 feet. - Flood History...This crest compares to a previous crest of 17.0 feet on 04/12/2013. - 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 1 pm... Location stage stage stage/time Sun Mon Tue Wed Baraboo 16.0 14.0 15.77 3 pm 4/18 16.6 16.9 16.4 15.0 - 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 Baraboo 16.86 1 pm 4/17 -0.82 17.00 7 am 4/20 &&
Flash Flood Watch
Issued: 8:49 PM Apr. 18, 2026 – National Weather Service
...FLASH FLOOD WATCH FOR THE POTENTIAL COMPROMISE OF THE CALEDONIA-LEWISTON LEVEE ON THE WISCONSIN RIVER REMAINS IN EFFECT THROUGH SUNDAY MORNING... * WHAT...Flash flooding due to the potential compromise of the Caledonia-Lewiston Levee. The Wisconsin Department of Natural Resources has indicated that the Calendonia-Lewiston Levee along the Wisconsin River may become compromised as the river levels rise. If this takes place, a rapid inundation of water is expected along the south and west side of the river. The City of Portage is not anticipated to be impacted by a potential compromise of the Caledonia-Lewiston Levee. * WHERE...A portion of south central Wisconsin, including the following counties, Columbia and Sauk along the south and west side of the Wisconsin River. Areas affected include, but are not limited to the Pine Island State Wildlife Area and portions of Highway 33. The City of Portage is not anticipated to be impacted by a potential compromise of the Caledonia-Lewiston Levee. * WHEN...Through Sunday morning. * IMPACTS...A compromised levee may result in flash flooding of low-lying areas along the Caledonia-Lewiston Levee. * ADDITIONAL DETAILS... - Excessive rainfall over the past several days has resulted in very high water level on the Wisconsin River. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... PLAN NOW so you will know what to do in an emergency. Keep informed by listening to local radio and television for statements and possible warnings. Follow the advice of public safety officials. &&
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