Active Weather Alerts
Special Marine Warning
Issued: 3:24 AM Apr. 3, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until midnight CDT. * At 1024 PM CDT, severe thunderstorms were located along a line extending from 12 nm south of Waukegan Harbor to Wilmette Harbor to 7 nm southwest of Midway Airport, moving east at 30 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Severe thunderstorms will be near... Montrose Harbor, Monroe Harbor, 31st Street Harbor, Harrison-Dever Crib, Burnham Harbor, Belmont Harbor, Diversy Harbor, and DuSable Harbor around 1030 PM CDT. Jackson Park Harbor and 59th Street Marina around 1035 PM CDT. Calumet Harbor around 1040 PM CDT. Hammond Marina around 1045 PM CDT. Indiana Harbor around 1055 PM CDT. HAIL...0.00IN WIND...50KTS
Small Craft Advisory
Issued: 2:08 AM Apr. 3, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT FRIDAY... * WHAT...Southwest winds to 30 kt and significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 4 AM CDT Friday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
River Flood Watch
Issued: 12:51 AM Apr. 3, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY MORNING TO EARLY TUESDAY MORNING... * WHAT...Flooding is possible. * WHERE...Fox River Lower near New Munster. * WHEN...From Saturday morning to early Tuesday morning. * IMPACTS...At 11.5 feet, Water is in the yards of some homes in the Village of Salem Lakes and Town of Wheatland areas, including Riverside Dr and Shorewood Dr. There are 3-4 inches of water over 77th Street in the Town of Wheatland. * ADDITIONAL DETAILS... - At 7:00 PM CDT Thursday the stage was 8.7 feet. - Forecast...Flood stage may be reached Saturday morning. - Flood stage is 11.0 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 New Munster 11.0 10.0 8.73 7 pm 4/02 10.2 11.4 11.4 11.0 - 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 New Munster 8.73 7 pm 4/02 1.32 11.50 7 am 4/05 &&
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