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FloodNational Weather Service

Flood Watch — Houston + 10 more areasFlood Watch — Houston + 10 more areas

Completed official-source record with preserved facts and meaningful-change history. The final record does not infer impacts the source did not report.

StatusCompleted
Affected area / locationHouston; Trinity; Madison
Record roleIncident record
Last meaningful change1 week ago
Last source check1 week ago
Official sourceNational Weather Service
FINAL RECORD

What the preserved official data shows

Automated factual summary

This Flood Watch left the National Weather Service active-alert feed after being preserved by Texas Disaster Watch. The official record named Houston; Trinity; Madison; Walker; San Jacinto; additional areas in official record. Completion confirms the alert is no longer in the active feed; it does not by itself establish damage or other impacts.

First collected
Sep 3, 2026 · 12:05 AM CDT
Record completed
Sep 3, 2026 · 9:15 AM CDT
Monitored duration
9 hours, 10 minutes
Official severity
Severe
Named areas
Houston; Trinity; Madison; Walker; San Jacinto; additional areas in official record
Official expiration
Sep 3, 2026 · 1:00 PM CDT
Final monitor status
Left the active NWS alert feed
EXACT LOCATION & OFFICIAL GIS

Show the Official Affected Area

Official NWS Texas zone/county boundaries

The map distinguishes an official point, official warning/perimeter geometry, and optional satellite thermal detections. Aerial imagery is a basemap and may be older than the incident.

Official source pointOfficial warning/zone area
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Record facts

Event
Flood Watch
Affected Texas areas
Houston; Trinity; Madison; Walker; San Jacinto; Polk; Brazos; Grimes; Montgomery; Northern Liberty; Southern Liberty
Effective
2026-09-03T00:03:00-05:00
Expires
2026-09-03T13:00:00-05:00
Issuing authority
NWS Houston/Galveston TX
LATEST MEANINGFUL CHANGE

Completed

Official record ended or left the source’s active window.

Instructions preserved with the record

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

This record is completed. Check current official sources before acting.

Latest official-source information

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...A portion of southeast Texas, including the following
areas, Brazos, Grimes, Houston, Madison, Montgomery, Northern
Liberty, Polk, San Jacinto, Southern Liberty, Trinity and Walker.

* WHEN...Through Thursday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- A swath of very high rainfall totals over portions of Liberty,
Polk, San Jacinto, Montgomery, and Trinity Counties has saturated
the ground. Rainfall has not been as significant further to the
west and northwest. That said, periods of showers and
thunderstorms are anticipated into Thursday in association with
the remnants of Edouard. Embedded, training rain rates between
2-4 inches per hour are possible in this deep tropical airmass.
Where this occurs, especially over the already hardest hit areas,
rainfall will rapidly runoff to produce flash flooding.
- http://www.weather.gov/safety/flood

RECORDED TIMELINE

Meaningful official changes

2 meaningful changes

The complete source history remains preserved. Routine monitoring snapshots and small gauge fluctuations are condensed here for readability.

  1. Record completedOfficial record ended or left the source’s active window.
  2. First recordedNew official record added to the monitor.

Original source

This record is derived from an official public source. Texas Hazard Watch preserves and organizes it but does not replace the issuing authority.

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