Texas alerts

Galveston County, Texas weather alerts

1 National Weather Service alert is in force for Galveston County: an air quality alert.

Checked Mon, Sep 21, 2026, 10:00 PM CDT. Times are Central Daylight Time.

Galveston County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Galveston County, Texas. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Galveston County, Texas Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for Galveston County, worst first, with its full text.

Air Quality Alert

Other

Air Quality Alert issued September 21 at 2:57PM CDT by NWS Houston/Galveston TX

Issued Until 21 hr left

Areas Inland Harris, TX; Inland Brazoria, TX; Inland Galveston, TX; Coastal Harris, TX; Coastal Brazoria, TX; Coastal Galveston, TX; Brazoria Islands, TX; Galveston Island, TX; Bolivar Peninsula, TX

Full text

AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, September 22, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean

NWS Houston/Galveston TXShare this alert

The past year in Galveston County

In the past year the National Weather Service issued 159 alerts for Galveston County, including 19 severe thunderstorm warnings, 4 flash flood warnings, 4 flood warnings and 3 tornado warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning19Aug 28, 2026
Flash Flood Warning4Jun 20, 2026
Flood Warning4Jun 20, 2026
Tornado Warning3Feb 14, 2026
Tropical Storm Warning3Aug 31, 2026
Extreme Heat Warning2Jul 22, 2026
Red Flag Warning2Mar 16, 2026
Coastal Flood Warning1Jun 16, 2026
Extreme Cold Warning1Jan 24, 2026
Freeze Warning1Jan 18, 2026
Flood Watch4Sep 1, 2026
Tornado Watch3Mar 11, 2026
Extreme Cold Watch2Jan 26, 2026
Fire Weather Watch2Mar 16, 2026
Severe Thunderstorm Watch2May 10, 2026
Tropical Storm Watch2Jul 22, 2026
Dense Fog Advisory28Mar 4, 2026
Flood Advisory28Sep 3, 2026
Wind Advisory10Apr 18, 2026
Heat Advisory7Sep 14, 2026
Coastal Flood Advisory6Jun 16, 2026
Cold Weather Advisory1Jan 31, 2026
Winter Weather Advisory1Jan 25, 2026
Rip Currents Statement18Jul 23, 2026
Beach Hazard Statement5Sep 1, 2026

Warnings issued

  1. Tropical Storm Warning
  2. Severe Thunderstorm Warning
  3. Severe Thunderstorm Warning
  4. Tropical Storm Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Extreme Heat Warning
  8. Flood Warning
  9. Severe Thunderstorm Warning
  10. Flash Flood Warning
  11. Flash Flood Warning
  12. Extreme Heat Warning
  13. Tropical Storm Warning
  14. Flood Warning
  15. Coastal Flood Warning
  16. Severe Thunderstorm Warning
  17. Flood Warning
  18. Flood Warning
  19. Flash Flood Warning
  20. Flash Flood Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Severe Thunderstorm Warning
  24. Severe Thunderstorm Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Warning
  27. Red Flag Warning
  28. Severe Thunderstorm Warning
  29. Tornado Warning
  30. Tornado Warning
  31. Severe Thunderstorm Warning
  32. Extreme Cold Warning
  33. Freeze Warning
  34. Red Flag Warning
  35. Tornado Warning
  36. Severe Thunderstorm Warning
  37. Severe Thunderstorm Warning
  38. Severe Thunderstorm Warning
  39. Severe Thunderstorm Warning
  40. Severe Thunderstorm Warning
Every alert, most recent first
  1. Heat Advisory
  2. Flood Advisory
  3. Flood Watch
  4. Beach Hazard Statement
  5. Tropical Storm Warning
  6. Severe Thunderstorm Warning
  7. Severe Thunderstorm Warning
  8. Heat Advisory
  9. Flood Advisory
  10. Flood Advisory
  11. Heat Advisory
  12. Heat Advisory
  13. Rip Currents Statement
  14. Beach Hazard Statement
  15. Tropical Storm Warning
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Extreme Heat Warning
  19. Tropical Storm Watch
  20. Heat Advisory
  21. Flood Advisory
  22. Flood Advisory
  23. Flood Advisory
  24. Rip Currents Statement
  25. Rip Currents Statement
  26. Flood Advisory
  27. Flood Advisory
  28. Flood Warning
  29. Severe Thunderstorm Warning
  30. Flash Flood Warning
  31. Flood Advisory
  32. Flash Flood Warning
  33. Flood Advisory
  34. Heat Advisory
  35. Rip Currents Statement
  36. Extreme Heat Warning
  37. Heat Advisory
  38. Tropical Storm Warning
  39. Flood Warning
  40. Flood Advisory

The 40 most recent of 159.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

Nearby

The counties around Galveston County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.