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Flash Flood Warning issued August 1 at 1:46PM CDT until August 1 at 4:45PM CDT by NWS Lincoln IL

8.0

40.2780° N, 87.7700° W·US-IL

Started 1h ago

Event Details

Typeflood

Severity8.0

Statusactive

Location40.2780°N, 87.7700°W (US-IL)

Started2026-08-01T18:46:00+00:00

Last Updated2026-08-01T20:10:49.531+00:00

Sourcenoaa_ahps

Source URLapi.weather.gov

Confidence1.00

Impact Zones

Catastrophic Impact Zone

Flash flooding or major flood stage. Immediate danger to life and property.

NWS polygon

Zone estimates are based on scientific models and may differ from actual local conditions.

Impact Analysis

Note: Zone 1 uses NWS polygon geometry. Exposure for this zone is pending polygon-based computation — totals reflect outer zones only.

Population from ACS 5-Year 2022 tract sampling; structure counts from Microsoft Building Footprints or Census ACS housing data, capped by USGS NLCD 2021 developed land. Estimates for situational awareness — not for actuarial, regulatory, or underwriting use.

Historical Comparison

2018 VERMILION County, ILLINOIS Flood (2018)70% match

Flood in ILLINOIS, 31km from current event, $3M in recorded damage

VERMILION County, ILLINOISDamage: $3.0M

2018 CHAMPAIGN County, ILLINOIS Flood (2018)69% match

Flood in ILLINOIS, 32km from current event, $1M in recorded damage

CHAMPAIGN County, ILLINOISDamage: $1.0M

2014 CHAMPAIGN County, ILLINOIS Flash Flood (2014)66% match

Flash Flood in ILLINOIS, 60km from current event, $47M in recorded damage

CHAMPAIGN County, ILLINOISDamage: $47.0M

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

View on Live Map

US-IL flood hazard profile All US hazard profiles Scoring methodology

Zone estimates are based on scientific models and may differ from actual local conditions.