Active Weather Alerts
River Flood Warning
Issued: 8:57 PM Apr. 18, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Milwaukee River near Cedarburg. * WHEN...Until Wednesday morning. * IMPACTS...At 12.0 feet, Thiensville: Villa Grove Rd, Thiensville Village Park, water into yards of homes. Klug Ln, River Rd and Bonniwell Rd floods and water approaches some homes along N Island Drive and N Shoreland Parkway in Mequon. The following roads may flood: Mill St, Green Bay Ave, S Riverside Dr, Hwy Y and Hawthorne Dr and Blueberry Dr and Hawthorne Dr in the Town of Saukville, Highway W from Highway 33 and Highway 57 in the Village and Town of Saukville. * ADDITIONAL DETAILS... - At 3:00 PM CDT Saturday the stage was 11.5 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Saturday was 11.6 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet early tomorrow afternoon. It will then fall below flood stage early Wednesday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 08/29/2018. - 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 1 pm... Location stage stage stage/time Sun Mon Tue Wed Cedarburg 11.0 10.0 11.52 3 pm 4/18 12.2 12.1 11.4 10.5 - 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 Cedarburg 11.56 1 pm 4/18 0.71 12.20 1 am 4/20 &&
Small Craft Advisory
Issued: 7:43 PM Apr. 18, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...West northwest winds 15 to 20 kt with gusts up to 25 kt. * WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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