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Flood Watch Extended Through Wednesday Morning for San Jacinto, Polk, Montgomery and Southeast Texas

The National Weather Service has extended the Flood Watch for southeast Texas, including San Jacinto, Polk and Montgomery counties, now in effect from late Monday night through Wednesday morning.

4 reports on this incident · first at Aug 31, 2026, 11:32 a.m. ET

By AI ReporterWritten Aug 31, 2026, 11:53 a.m. ET
The has extended the for portions of southeast Texas, including San Jacinto, Polk and Montgomery counties, now in effect from 1 a.m. Tuesday, September 1, through 7 a.m. Wednesday, September 2. The was issued at 10:14 a.m. Monday, August 31, and now runs longer than initially announced. The covers counties and areas including Bolivar Peninsula, Chambers, Coastal Galveston, Coastal Harris, Galveston Island, Inland Galveston, Inland Harris, Montgomery, Northern Liberty, Polk, San Jacinto, and Southern Liberty. Cities in the area include Houston, Galveston, Baytown, Conroe, and League City. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, as well as poor drainage and urban areas. Residents are advised to monitor later forecasts and be alert for possible Flood Warnings. Those living in flood-prone areas should be prepared to take action if flooding develops.

Earlier reports

  1. Aug 31, 2026, 11:43 a.m. ET

    Flood Watch Issued for San Jacinto, Polk, Montgomery Through Wednesday Morning

    The National Weather Service Houston has issued a Flood Watch for portions of southeast Texas, effective from 1 a.m. Monday, September 1, 2026, through 7 a.m. Tuesday, September 2, 2026. The watch covers 12 zones, including Bolivar Peninsula, Chambers, Coastal Galveston, Coastal Harris, Galveston Island, Inland Galveston, Inland Harris, Montgomery, Northern Liberty, Polk, San Jacinto, and Southern Liberty.

    Affected cities include Houston, Galveston, Baytown, Conroe, The Woodlands, Pasadena, League City, Texas City, and Friendswood, among others. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may also occur in poor drainage and urban areas.

    Residents are advised to 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.

  2. Aug 31, 2026, 11:37 a.m. ET

    Flood Watch Issued for Southeast Texas Through Wednesday Morning

    The National Weather Service Houston has issued a Flood Watch for portions of southeast Texas, effective from 1 a.m. Monday, September 1, 2026, through 7 a.m. Wednesday, September 2, 2026. The watch covers 12 zones, including Bolivar Peninsula, Chambers, Coastal Galveston, Coastal Harris, Galveston Island, Inland Galveston, Inland Harris, Montgomery, Northern Liberty, Polk, San Jacinto, and Southern Liberty.

    According to the Weather Service, excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, with flooding also possible in poor drainage and urban areas. Residents in flood-prone areas should be prepared to take action should flooding develop, and are advised to monitor later forecasts and be alert for possible Flood Warnings.

  3. Aug 31, 2026, 11:32 a.m. ETFirst report

    Flood Watch Issued for San Jacinto, Polk, Montgomery and Other Southeast Texas Areas Through Wednesday Morning

    The National Weather Service Houston has issued a Flood Watch for a portion of southeast Texas, effective from late Monday night, September 1, 2026, through Wednesday morning, September 2, 2026, according to an official record from the agency. The watch covers 12 zones, including Bolivar Peninsula, Chambers, Coastal Galveston, Coastal Harris, Galveston Island, Inland Galveston, Inland Harris, Montgomery, Northern Liberty, Polk, San Jacinto, and Southern Liberty. Cities in the affected area include Houston, Galveston, Baytown, Conroe, and The Woodlands.

    The watch warns that excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, with flooding possible in poor drainage and urban areas. The National Weather Service advises residents to monitor later forecasts and be alert for possible Flood Warnings, and those living in flood-prone areas should be prepared to take action should flooding develop.

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Revision history

  1. Version 131 Aug 2026, 15:53current

    First published.

  2. Version 131 Aug 2026, 15:37current

    First published.

  3. Version 131 Aug 2026, 15:32current

    First published.

  4. Version 131 Aug 2026, 15:43current

    First published.

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