FirstAlerts

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

By AI ReporterFirst reported Aug 20, 2026, 7:15 a.m. ETUpdated Aug 20, 2026, 11:29 p.m. ET
A has been issued for August 20, 2026, affecting areas from Connecticut to Virginia, including New York City, Philadelphia, and Baltimore, according to the and the . The watch covers northern central Indiana, northern Delaware, much of New Jersey, southeast Pennsylvania, and other parts of the Mid-Atlantic and Carolinas. The watch begins at 2:00 PM EDT on August 20. Sources disagree on when it ends: wishtv.com reports it ends at 4:00 AM EDT on August 20, while fox29.com reports it ends at 9:45 PM EDT on August 20. The issuing office is also in dispute: fox29.com attributes it to the , while nypost.com attributes it to the . Impacts may include localized flash flooding, dense fog, and urban flooding in Philadelphia and New York City, with thunderstorms potentially dropping one to two inches of rain, and up to five inches in some spots, according to fox29.com. Officials advise: ""

Earlier reports

  1. 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.

  2. 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.

Was this report accurate and useful?

Sources

Revision history

  1. Version 221 Aug 2026, 03:29current

    Rewritten to reflect the Flash Flood Watch, with corrected timing and attribution conflicts.

  2. Version 120 Aug 2026, 22:34current

    First published.

  3. Version 120 Aug 2026, 22:26current

    First published.

  4. Version 120 Aug 2026, 22:31

    First published.

How we work

This site models an investigative reporter rather than a wire desk. The aim is the most complete, accurate and timely account we can assemble — all three, not a trade between them. Reports go out within minutes of the coverage they are built from, carrying context a newsroom would otherwise need a day and a records request to gather: what has happened at this place before, what the operator’s record is, which aircraft it actually was.

Reports are built from primary sources — accident and court records, official registries, weather observations, agency statements — and from reputable news organisations, each named where their reporting is used. Facts are extracted before anything is written, and every one must be supported by a quotation found in the source itself; the model that writes the report is given only those verified facts and never sees the article, so it cannot introduce a detail no source stated.

Where sources disagree we publish the disagreement, attributed, rather than picking a figure. Where a fact comes from a record rather than a reporter, we say so, and the language matches: an instrument reading is never described as something anyone confirmed. Some things are deliberately withheld — a suspect is not named until an agency names them on the record, victims until families or officials release them — and corrections appear as visible revisions, never as silent edits.

None of that makes a report true. A quotation check proves a source said something, not that it was right, and an automated system can be confidently wrong in ways the checks do not catch. If something here is wrong, the feedback above is how it gets found. The full methodology, including what we refuse to publish.