Flash Flood Warning Issued for Armstrong and Clarion Counties Following Ice Jam Break
This alert is no longer in effect.
NOAA issued it on April 6, 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 Flash Flood Warning is in effect for parts of Armstrong and Clarion counties until 5:30 PM EST after an ice jam broke on the Allegheny River at Foxburg.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- West Central Pennsylvania
- Issued
- April 6, 2026
- Issuing authority
- NWS Pittsburgh
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 West Central Pennsylvania.
Alert Details
The National Weather Service in Pittsburgh has issued a Flash Flood Warning for northwestern Armstrong County and southwestern Clarion County in west central Pennsylvania. The warning was triggered by reports of an ice jam break on the Allegheny River.
Affected Areas
The warning impacts the following geographic regions:
- Northwestern Armstrong County in west central Pennsylvania
- Southwestern Clarion County in west central Pennsylvania
Specific downstream towns identified in the path of the flooding include Parker, Monterey, and West Monterey.
What You Should Do
Residents and motorists in the warning area should adhere to the following safety instructions:
- Turn around, don't drown: Do not attempt to drive on flooded roads. Most flood-related fatalities occur in vehicles.
- Stay away from river banks: River banks and culverts can become unstable and unsafe during flash flooding events.
- Remain vigilant: Be aware of your surroundings and avoid areas near the river downstream of the break.
Expected Conditions
At 2:29 PM EST, gauge reports indicated that an ice jam on the Allegheny River at Foxburg broke. This break is causing immediate flash flooding in areas near and downstream of the jam location. The primary hazard is flash flooding resulting directly from the sudden release of water and ice.
Timeline
The Flash Flood Warning is effective as of 2:29 PM EST on February 20, 2026, and is currently set to expire at 5:30 PM EST on the same day.
Original source: NOAA Official Notice ↗
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