Flash Flood Watch Issued for Mid-Atlantic and Northeast
A Flash Flood Watch is in effect for parts of the Mid-Atlantic and Northeast, with heavy rain and thunderstorms expected.
3 reports on this incident · first at Aug 20, 2026, 6:26 p.m. ET
Earlier reports
Aug 20, 2026, 6:34 p.m. ET
Flood Warning Extended Through August 21
The National Weather Service Indianapolis IN has extended the flood warning for the area, now in effect until 9:12 AM EDT on Friday, August 21. The warning was originally set to expire earlier but now runs longer than first issued.
At 6:00 PM EDT Thursday, the river stage was 11.6 feet. The river is expected to fall and remain below flood stage. The warning was issued at 12:25 PM EDT on August 20.
For safety information, visit http://www.weather.gov/safety/flood.
Aug 20, 2026, 6:26 p.m. ETFirst report
Flood Warning Issued for August 20-21
The National Weather Service Indianapolis IN issued a Flood Warning on August 20, 2026, effective from 12:25 PM EDT to 9:12 AM EDT on August 21. The warning covers one zone.
At 6:00 PM EDT Thursday, the river stage was 11.6 feet. The forecast indicates the river is expected to fall and remain below flood stage. The National Weather Service advises residents to visit http://www.weather.gov/safety/flood for safety information.
The warning is in effect until 9:12 AM EDT on August 21, 2026.
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Sources
- Active pattern over central Indiana finally dries out | Aug. 20, 2026wishtv.com
- Philly region hit by tornado damage, flash floods and road closuresfox29.com
- Flood warnings expire as heavy rain subsidesjournal-news.com
- Risk of severe storms, flash flooding for Philly region today, weekend [Updated]readingeagle.com
- Severe storms expected to slam Northeast with 32M threatened by dangerous floodingnypost.com
Revision history
- Version 221 Aug 2026, 03:29current
Rewritten to reflect the Flash Flood Watch, with corrected timing and attribution conflicts.
- Version 120 Aug 2026, 22:34current
First published.
- Version 120 Aug 2026, 22:26current
First published.
- Version 120 Aug 2026, 22:31
First published.
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