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.
What the preserved official data shows
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 · 9:15 AM CDT
- Record completed
- Sep 3, 2026 · 7:00 PM CDT
- Monitored duration
- 9 hours, 45 minutes
- Official severity
- Severe
- Named areas
- Houston; Trinity; Madison; Walker; San Jacinto; additional areas in official record
- Official expiration
- Sep 3, 2026 · 7:00 PM CDT
- Final monitor status
- Left the active NWS alert feed
Show the Official Affected Area
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.
Record facts
- Event
- Flood Watch
- Affected Texas areas
- Houston; Trinity; Madison; Walker; San Jacinto; Polk; Brazos; Grimes; Montgomery; Northern Liberty; Southern Liberty
- Effective
- 2026-09-03T09:12:00-05:00
- Expires
- 2026-09-03T19:00:00-05:00
- Issuing authority
- NWS Houston/Galveston TX
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.
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...Until 7 PM CDT this evening.
* 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 through this evening 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. Those living in areas prone to flooding should be
prepared to take action should flooding develop. Stay weather
aware and be ready to take action when Flash Flood Warnings are
issued, particularly wireless emergency alert Flash Flood
Warnings for considerable and/or catastrophic flooding.
- http://www.weather.gov/safety/flood
Meaningful official changes
The complete source history remains preserved. Routine monitoring snapshots and small gauge fluctuations are condensed here for readability.
- Record completedOfficial record ended or left the source’s active window.
- 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.