Flash Flood Warning — San Jacinto County, Texas
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued September 2 at 4:49PM CDT until September 2 at 7:15PM CDT by NWS Houston/Galveston TX
FFWHGX The National Weather Service in Houston/Galveston has issued a * Flash Flood Warning for... Southeastern Polk County in southeastern Texas... East Central San Jacinto County in southeastern Texas... * Until 715 PM CDT. * At 449 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 16 inches of rain have fallen over the last 24 hours. The expected rainfall rate is 3 to 5 inches in 1 hour. Additional rainfall amounts of 2 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Shepherd, Goodrich, Alabama-Coushatta Reservation and Segno.
Effective September 2, 2026 at 5:49 PM ET · Expires September 2, 2026 at 8:15 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Houston/Galveston TX
Expires
September 2, 2026 at 8:15 PM ET
Last Checked
4 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Texas
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Get Flash Flood Warning Alerts for San Jacinto County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Flash Flood Warning mean for San Jacinto County, Texas?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (4 minutes ago). It's set to expire September 2, 2026 at 8:15 PM ET.
How do I get notified about Flash Flood Warning alerts for San Jacinto County?
Download StormCast free on Google Play and set San Jacinto County, Texas as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flash Flood Warning is also in effect for Polk County.