Flood Warning Issued for Ogle County, Illinois
This alert is no longer in effect.
NOAA issued it on April 16, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flood Warning has been issued by the National Weather Service for Ogle County, Illinois, with moderate flooding expected on the Rock River starting late tonight.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Ogle County, Illinois
- Issued
- April 16, 2026
- Issuing authority
- NWS Chicago IL
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Ogle County, Illinois.
Flood Warning in Ogle County, Illinois
Alert Details
The National Weather Service in Chicago, IL has issued a Flood Warning. It was issued on April 16, 2026, at 11:17 AM CDT, and is effective from April 16, 2026.
Affected Areas
The warning affects Ogle County, Illinois, specifically the Rock River from the confluence with Kishwaukee River to Castle Rock State Park near Oregon, including the Byron gauge.
What You Should Do
Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. Avoid the affected areas.
Expected Conditions
Moderate flooding is forecast. The river stage is currently at 11.5 feet and is expected to rise above the 13.0-foot flood stage tonight, cresting near 14.0 feet on Saturday. At 13.5 feet, numerous low-lying structures downstream of Byron are flooded.
Timeline
The warning has an onset at April 17, 2026, 01:00 AM CDT and expires on April 17, 2026, 05:30 AM CDT. It is in effect from late tonight until further notice.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,028 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 16, 2026.
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