Active Weather Alerts
Severe Thunderstorm Warning
Issued: 8:43 PM Aug. 12, 2025 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR NORTHEASTERN COOK COUNTY... At 342 PM CDT, a severe thunderstorm was located over Albany Park, or over Irving Park, moving northeast at 30 mph. HAZARD...60 mph wind gusts. The strongest winds are expected over Albany Park and Lincolnwood! SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Belmont Cragin, Dunning, West Ridge, Forest Glen, Edgewater, North Center, Skokie, Austin, Rogers Park, River Forest, Schiller Park, Logan Square, Albany Park, Avondale, Lincoln Park, Norwood Park, Jefferson Park, Uptown, Elmwood Park, North Park, Evanston, Humboldt Park, Lincolnwood, Oak Park, and Harwood Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Flood Advisory
Issued: 8:39 PM Aug. 12, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 645 PM CDT THIS EVENING... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following county, Cook. * WHEN...Until 645 PM CDT. * IMPACTS...Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 338 PM CDT, Doppler radar indicated heavy rain due to thunderstorms with rates up to 3 inches per hour. Heaviest rainfall extended from near Northlake eastward across northern Chicago. Up to 1.5 inches of rain have fallen. Additional thunderstorms may develop across the area over the next few hours leading to flooding. - Some locations that will experience flooding include... Chicago, Cicero, Evanston, Skokie, Des Plaines, Berwyn, Oak Park, Glenview, Ohare Airport, Park Ridge, Niles, Austin, Irving Park, South Lawndale, West Town, West Ridge, Lake View, Lincoln Park, Midway Airport and Bridgeport. - 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. &&
Special Weather Statement
Issued: 8:35 PM Aug. 12, 2025 – National Weather Service
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN COOK COUNTY THROUGH 400 PM CDT... At 334 PM CDT, Doppler radar was tracking a strong thunderstorm over Portage Park, or over Norridge, moving northeast at 30 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. These winds may cause small tree limbs to fall. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Belmont Cragin, Dunning, West Ridge, Forest Glen, Edgewater, North Center, Rogers Park, River Forest, Maywood, Logan Square, Albany Park, Avondale, Norwood Park, Franklin Park, Jefferson Park, Stone Park, Uptown, Elmwood Park, North Park, Evanston, Melrose Park, Lincolnwood, Harwood Heights, Lincoln Square, and Lake View. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && MAX HAIL SIZE...0.25 IN; MAX WIND GUST...50 MPH
Flash Flood Warning
Issued: 8:24 PM Aug. 12, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING FOR SOUTHEASTERN COOK AND CENTRAL WILL COUNTIES... At 323 PM CDT, Doppler radar and automated rain gauges indicated slow-moving thunderstorms continuing to move across the area. Rainfall rates up to 2-3 inches per hour are ongoing near Tinely Park and Oak Forest. Up to 3 inches of rain have fallen. Flash flooding is likely ongoing or imminent. HAZARD...Flash flooding. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. Some locations that will experience flash flooding include... Chicago, Hammond, Orland Park, Tinley Park, Oak Lawn, Calumet City, Chicago Heights, Roseland, Englewood, South Shore, Lansing, Oak Forest, Harvey, New Lenox, Homer Glen, Blue Island, Munster, Dolton, Park Forest and Homewood. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. && FLASH FLOOD...RADAR AND GAUGE INDICATED; EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
Special Marine Warning
Issued: 8:06 PM Aug. 12, 2025 – National Weather Service
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 430 PM CDT... For the following areas... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 305 PM CDT, a strong thunderstorm was located near Calumet Harbor, moving northeast at 20 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Burnham Harbor, Hammond Marina, Wilmette Harbor, Jackson Park Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Belmont Harbor, Calumet Harbor, Marina Shores at Dune Harbor, and Indiana Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && HAIL...0.00IN; WIND...40KTS
Flood Advisory
Issued: 7:33 PM Aug. 12, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 530 PM CDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following counties, Cook and Will. * WHEN...Until 530 PM CDT. * IMPACTS...Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 231 PM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Rain gauges indicate rainfall rates up to 3 inches per hour with storms near Frankfort, Mokena, and Orland Park. Up to 1.5 inches of rain has fallen thus far. - Some locations that may experience flooding include... Chicago, Hammond, Orland Park, Tinley Park, Oak Lawn, Calumet City, Woodridge, Chicago Heights, Roseland, Chicago Lawn, Englewood, South Shore, Burbank, Lansing, Oak Forest, Harvey, New Lenox, Homer Glen, Blue Island and Dolton. - 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. &&
Flood Watch
Issued: 4:34 PM Aug. 12, 2025 – National Weather Service
...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northeast Illinois, including the following areas, Central Cook, DuPage, Eastern Will, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...Through this evening. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - Showers and thunderstorms are possible this afternoon and evening. Atmospheric conditions are favorable for rainfall rates up to 1-2 inches per hour. In addition to increased runoff potential due to urban land cover in the Chicago Metropolitan Area, near surface soil moisture in some areas is elevated due to recent rainfall. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop. &&
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