NWS county zone ILC031

Cook weather alerts

Public weather alerts linked to this verified National Weather Service zone.

NWS feedSource freshLast successful check: Aug 2, 2026, 2:03 AM UTC

Current answer

4 active alerts

Open official zone data

Active Official severity: Severe

Flood Warning for Cook, IL; Will, IL; Lake, IN

Cook, Will, Lake

Until Aug 2, 2026, 4:45 AM UTC

Active Official severity: Severe

Flood Warning for Cook, IL; Lake, IN

Until Aug 2, 2026, 12:00 PM UTC

Active Official severity: Severe

Flood Warning for Cook, IL

Until Aug 2, 2026, 2:00 PM UTC

Active Official severity: Minor

Flood Advisory for Cook, IL; DuPage, IL; Will, IL +1 more

Cook, DuPage, Will and 1 more

Until Aug 2, 2026, 6:00 AM UTC

Official zone ID: ILC031
Zone type: county
State: Illinois
Metadata verified: Yes, from NWS

Context only

Recently ended alerts

Ended Official severity: Extreme

Tornado Warning for Cook, IL; Will, IL

Ended Jul 27, 2026, 5:57 PM UTC

Ended Official severity: Severe

Flood Warning for Cook, IL; Lake, IN

Ended Jul 28, 2026, 7:02 AM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; Will, IL

Ended Jul 27, 2026, 11:00 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; DuPage, IL

Ended Jul 27, 2026, 10:45 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; DuPage, IL

Ended Jul 27, 2026, 10:30 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL

Ended Jul 27, 2026, 7:07 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; Lake, IN

Ended Jul 27, 2026, 6:52 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; Will, IL

Ended Jul 27, 2026, 6:30 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; Will, IL

Ended Jul 27, 2026, 6:30 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL; Lake, IN

Ended Jul 27, 2026, 6:30 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL

Ended Jul 27, 2026, 6:00 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL

Ended Jul 27, 2026, 5:52 PM UTC

Ended Official severity: Severe

Severe Thunderstorm Warning for Cook, IL

Ended Jul 27, 2026, 5:15 PM UTC

Ended Official severity: Severe

Flood Warning for Cook, IL; DuPage, IL; Kane, IL +2 more

Cook, DuPage, Kane and 2 more

Ended Aug 1, 2026, 8:00 PM UTC

Ended Official severity: Severe

Flash Flood Warning for Cook, IL; DuPage, IL

Ended Aug 1, 2026, 2:18 PM UTC

Ended Official severity: Severe

Flash Flood Warning for Cook, IL

Ended Jul 27, 2026, 10:00 PM UTC

Ended Official severity: Severe

Flash Flood Warning for Cook, IL; DuPage, IL

Ended Jul 27, 2026, 9:00 PM UTC

Ended Official severity: Severe

Flood Warning for Cook, IL

Ended Jul 28, 2026, 7:47 PM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL; Grundy, IL; Kendall, IL +3 more

Cook, Grundy, Kendall and 3 more

Ended Aug 2, 2026, 12:00 AM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL; DuPage, IL; Kendall, IL +1 more

Cook, DuPage, Kendall and 1 more

Ended Aug 2, 2026, 12:00 AM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL; Will, IL

Ended Aug 2, 2026, 12:00 AM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL; Lake, IN

Ended Aug 1, 2026, 6:30 PM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL

Ended Aug 1, 2026, 4:15 PM UTC

Ended Official severity: Minor

Flood Advisory for Cook, IL; DuPage, IL

Ended Aug 1, 2026, 3:28 PM UTC

Ended Official severity: Unknown

Hydrologic Outlook for Boone, IL; Cook, IL; De Kalb, IL +17 more

Boone, Cook, De Kalb and 17 more

Ended Aug 1, 2026, 9:00 AM UTC

Zone matching is not a personal forecast

This page uses official NWS zone membership. For exact location matching, an alert must include official geometry or be linked to a verified zone geometry that contains the point.

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