Active Weather Alerts
Beach Hazard Statement
Issued: 2:55 AM Jun. 18, 2026 – National Weather Service
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... * WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 5 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through late tonight. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures. &&
Small Craft Advisory
Issued: 2:44 AM Jun. 18, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THURSDAY... * WHAT...West winds 25 to 30 kt and significant waves 5 to 6 ft occasionally to 8 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 9 AM CDT Thursday. * 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 Warning
Issued: 1:06 AM Jun. 18, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING... * WHAT...Minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until late tomorrow evening. * IMPACTS...At 11.5 feet, Glenwood Thornton Road threatened north of Glenwood. * ADDITIONAL DETAILS... - At 7:45 PM CDT Wednesday the stage was 8.4 feet. - Forecast...The river is expected to crest near 12 feet just after midnight tonight, then begin a slow fall. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 1:03 AM Jun. 18, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW EVENING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Calumet River from IN-912 in Hammond downstream to confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge. * WHEN...Until tomorrow evening. * IMPACTS...At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 7:00 PM CDT Wednesday the stage was 12.4 feet. - Forecast...The river is expected to crest of near 14 feet after midnight tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood &&
Flood Advisory
Issued: 12:02 AM Jun. 18, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... * WHAT...Rivers to remain near bankfull and may result in localized flooding near streams and rivers. * WHERE...Portions of northeast Illinois, including the following county, Cook and northwest Indiana, including the following county, Lake IN. * WHEN...Until midnight CDT tonight. * IMPACTS...Creeks and streams may rise to near bankfull. * ADDITIONAL DETAILS... - At 659 PM CDT, Gauges report rising streams and rivers due to earlier heavy rainfall. - Some locations that will experience flooding include... Hammond, Gary, Tinley Park, Calumet City, Portage, Merrillville, Chicago Heights, East Chicago, Schererville, Hobart, Lansing, Oak Forest, Harvey, Highland, Munster, Dolton, Park Forest, Homewood, Matteson and Frankfort. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. &&
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