Active Weather Alerts
Dense Fog Advisory
Issued: 9:50 AM Apr. 25, 2026 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, varying visibility as low as one eighth of a mile occurring. For the Small Craft Advisory, north winds to 25 kt and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, until 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
Small Craft Advisory
Issued: 9:50 AM Apr. 25, 2026 – National Weather Service
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...For the Dense Fog Advisory, varying visibility as low as one eighth of a mile occurring. For the Small Craft Advisory, north winds to 25 kt and significant waves to 6 ft occasionally to 8 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...For the Dense Fog Advisory, until 9 AM CDT this morning. For the Small Craft Advisory, until 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. &&
River Flood Warning
Issued: 9:40 AM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Floodwaters are into the lower levels of some homes in the Town of Wheatland and Village of Salem Lakes areas along Riverside Drive and Shorewood Drive. * ADDITIONAL DETAILS... - At 4:00 AM CDT Saturday the stage was 13.4 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 AM CDT Saturday was 13.7 feet. - Forecast...The river is expected to fall to 11.1 feet Friday evening. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 13.4 feet on 09/14/2019. - 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 am... Location stage stage stage/time Sun Mon Tue Wed New Munster 11.0 10.0 13.38 4 am 4/25 12.8 12.4 12.1 11.8 - 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 15.04 7 am 4/19 -0.37 13.30 1 am 4/25 &&
River Flood Warning
Issued: 1:18 AM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON... * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Sunday afternoon. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 7:30 PM CDT Friday the stage was 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Friday was 8.8 feet. - Forecast...The river is expected to fall below flood stage late Sunday morning and continue falling to 5.0 feet Friday, May 01. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 1:18 AM Apr. 25, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Major flooding is occurring and is forecasted to continue today. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Structures threatened along River Street, Johnson Street, and Maiden Lane in East Dundee. North Harrison Street threatened near Riverside Park in Algonquin. Washington Street threatened in Carpentersville. Water Street, Edwards Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road threatened in Elgin. Low-lying areas of Festival Park are threatened in Elgin. * ADDITIONAL DETAILS... - At 7:30 PM CDT Friday the stage was 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Friday was 12.0 feet. - Forecast...The river is expected to rise to a crest of 12.0 feet just after midnight tonight. - Flood stage is 9.5 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 05/23/2020. - http://www.weather.gov/safety/flood &&
Flood Warning
Issued: 7:00 PM Apr. 24, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until further notice. * IMPACTS...Numerous roads, yards, structures, and areas of park land are flooding along the Fox River Chain of Lakes. Flooding will continue through at least next week. * ADDITIONAL DETAILS... - At 102 PM CDT, River gauges along the Fox River Chain of Lakes indicate that water levels are now beginning to slowly recede following a recent crest in major flood stage. The latest forecast from the Illinois Department of Natural Resources indicates that water levels should continue to slowly recede into next week. - Water levels are expected to remain above flood stage at least through the middle of next week, assuming no additional rainfall occurs. - Some locations that will experience flooding include areas along the Fox River Chain of Lakes, including Nippersink Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie, Channel Lake, and Lake Catherine. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
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