Kmbc Weather: Dense Fog, Flooding and Severe-Storm Threat in Chicago Area

Dense fog and heavy rain struck the Chicago area on Friday, creating travel hazards, localized flooding in south suburbs and widespread flight disruptions — a fast-moving situation that matters now because stronger storms are expected overnight. The kmbc weather outlook highlights a Dense Fog Advisory that lingered into the day, heavy downpours that flooded streets and homes, and an after-midnight wave of showers and thunderstorms that could become severe.

Kmbc Weather: Dense Fog Advisory

A Dense Fog Advisory covered much of the region Friday morning, with one account placing the advisory in effect until 10 a. m. ET and another putting the advisory until 3 p. m. ET. The fog made travel difficult and had a pronounced effect on temperatures, keeping readings lower during the day. Although drizzle left the area feeling damp, heavier showers were limited during the daylight hours before a line of stronger storms moved in later.

Flooding and local damage

Heavy rain produced localized flooding in several south suburban communities. Homes, streets and vehicles were damaged, and witnesses said some drivers required rescue. Video captured a heavy downpour in Lynwood, and flooding was reported in South Chicago Heights and Steger. One resident described water so deep emergency crews had to walk a pregnant woman out of her car; another said basements and yards were inundated. Ponding was also observed on a major freeway near a city avenue, slowing traffic though cars were generally able to pass through.

Flights and overnight storm threat

Air travel was disrupted across major Chicago-area airports. At one point Friday morning, departures were subject to ground stops at both primary airports. City data showed 600 cancellations at O'Hare as of 9: 30 p. m. ET and 22 cancellations at Midway, with delays on the order of about an hour at both airports. Late in the evening conditions were mainly quiet and mild with temperatures in the 60s, but after midnight scattered showers and thunderstorms were expected to move in along a cold front. Those storms could potentially become severe, with the principal concerns being high winds and large hail.

• Dense fog advisory persisted into the day (listed end times: 10 a. m. ET and 3 p. m. ET in separate accounts).
• Heavy rain caused localized flooding in south suburbs, with vehicle and home damage reported.
• Overnight showers and thunderstorms could turn severe, with high winds and large hail the main threats; airports saw flight cancellations and delays.

Beyond the Chicago-area impacts, a deadly tornado struck southern Michigan, killing three people and producing dozens of injuries. A county office reported 12 injuries after an apparent tornado hit the Union Lake area roughly 125 miles west of Detroit. The event underscores a broader regional risk for hazardous weather during the same period.

Looking ahead, showers and thunderstorms were forecast to push through after midnight along the advancing cold front; if the storms maintain intensity into the evening hours they would increase the risk for severe wind and hail. Nighttime clearing and cooler conditions were expected to follow the exit of the showers, with a return to milder, sunnier conditions later in the weekend in separate outlooks. Officials and travelers should monitor updates as the forecast evolves and be prepared for rapidly changing conditions overnight.