Flood Advisory — Harris County, Texas
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 4 at 7:50PM CDT until August 4 at 9:45PM CDT by NWS Houston/Galveston TX
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Texas, including the following counties, Harris and Montgomery. * WHEN...Until 945 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 750 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1.5 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood
Effective August 4, 2026 at 8:50 PM ET · Expires August 4, 2026 at 10:45 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Houston/Galveston TX
Expires
August 4, 2026 at 10:45 PM ET
Last Checked
2 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Also In Effect For
This same Flood Advisory also covers:
Other Active Alerts in Texas
Get Flood Advisory Alerts for Harris County
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Frequently Asked Questions
What does a Flood Advisory mean for Harris County, Texas?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (2 minutes ago). It's set to expire August 4, 2026 at 10:45 PM ET.
How do I get notified about Flood Advisory alerts for Harris County?
Download StormCast free on Google Play and set Harris 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 Flood Advisory is also in effect for Montgomery County.