Flood Watch Extended Through Late Sunday Night for Tucson Area
The National Weather Service has extended the flood watch for southern Arizona, now running from Saturday morning through late Sunday night.
4 reports on this incident · first at Aug 28, 2026, 5:07 p.m. ET
Earlier reports
Aug 28, 2026, 5:53 p.m. ET
Flood Watch Issued for Tucson Area and Surrounding Regions
The National Weather Service in Tucson has issued a Flood Watch for the Tucson Metro Area, Southeast Pinal County, the Tohono O'odham Nation, the Upper San Pedro River Valley, the Upper Santa Cruz River Valley/Altar Valley, the Baboquivari Mountains, the Catalina and Rincon Mountains, and the Dragoon, Mule, Huachuca, and Santa Rita Mountains. The watch will be in effect from 11 a.m. MST Saturday, August 29, through 5 a.m. MST Monday, August 31.
Flash flooding caused by excessive rainfall is possible. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded, and flooding may occur in poor drainage and urban areas.
Residents should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Aug 28, 2026, 5:23 p.m. ET
Flood Watch Issued for Tucson Area and Surrounding Regions
The National Weather Service in Tucson has issued a Flood Watch for the Tucson metro area and surrounding regions, warning that excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded, and flooding may occur in poor drainage and urban areas.
The watch will be in effect from 11 a.m. MST Saturday, August 29, through 5 a.m. MST Monday, August 31. It covers nine zones, including the Tohono O'odham Nation, Upper Santa Cruz River Valley/Altar Valley, Tucson Metro Area, South Central Pinal County, Southeast Pinal County, Upper San Pedro River Valley, and the Dragoon, Mule, Huachuca, Santa Rita, Catalina, Rincon, and Baboquivari Mountains. Cities in the watch area include Tucson, Nogales, Sierra Vista, Bisbee, Marana, and others.
The Weather Service advises residents to monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Aug 28, 2026, 5:07 p.m. ETFirst report
Flood Watch Issued for Tucson Area and Surrounding Regions
The National Weather Service in Tucson has issued a Flood Watch for the Tucson Metro Area and surrounding regions, effective from 11:00 a.m. MST on Saturday, August 29, 2026, through 5:00 a.m. MST on Monday, August 31, 2026. The watch was issued at 1:58 p.m. MST on Friday, August 28, 2026.
The watch covers nine zones, including the Tohono O'odham Nation, Upper Santa Cruz River Valley/Altar Valley, South Central Pinal County, Southeast Pinal County, Upper San Pedro River Valley, and the Dragoon, Mule, Huachuca, and Santa Rita Mountains, as well as the Catalina, Rincon, and Baboquivari Mountains. Cities in the affected area include Tucson, Nogales, Sierra Vista, Bisbee, and others.
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded, and flooding may occur in poor drainage and urban areas. The National Weather Service advises residents to monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Was this report accurate and useful?
Sources
Revision history
- Version 128 Aug 2026, 22:23current
First published.
- Version 128 Aug 2026, 21:23current
First published.
- Version 128 Aug 2026, 21:07current
First published.
- Version 128 Aug 2026, 21:53current
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.