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Flood Watch issued September 30 at 5:00PM CDT until October 3 at 7:00PM CDT by NWS Chicago IL

7.0
42.3214°N, 87.9357°W·US-IL
Started just now
NWS flood alerts data as of
Event Details
Typeflood
Severity7.0
Statusactive
Location42.3214°N, 87.9357°W (IL)
Started2026-10-02T18:00:00+00:00
Last Updated2026-10-01T00:01:06.341+00:00
Sourcenoaa_ahps
Source URLapi.weather.gov
Confidence1.00
Impact Analysis

No impact zones are drawn for this event, so there is no population or structure estimate.

Historical Comparison
2023 COOK County, ILLINOIS Flash Flood79% match

Flash Flood in ILLINOIS, 34km from current event, $500M in recorded damage

COOK County, ILLINOISDamage: $500.0M
2017 LAKE County, ILLINOIS Flash Flood73% match

Flash Flood in ILLINOIS, 29km from current event, $13M in recorded damage

LAKE County, ILLINOISDamage: $12.7M
2013 COOK County, ILLINOIS Flash Flood73% match

Flash Flood in ILLINOIS, 26km from current event, $12M in recorded damage

COOK County, ILLINOISDamage: $12.0M

Historical comparison based on peril type, geography, and severity. Past events do not predict future outcomes.

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Related
Lake County, IL disaster historyAll US hazard profilesScoring methodology

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