San Jacinto County weather alerts
There are no active weather alerts for San Jacinto County, TX right now.
Since 2016 the National Weather Service has issued about 981 alerts that included San Jacinto County, roughly 98 a year. The most common is the severe thunderstorm warning (195 from 2016 to 2025). The last tornado warning was issued on October 25, 2025. 21 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include San Jacinto County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Walker County, Liberty County, Montgomery County, Trinity County.
San Jacinto County alert history
Alert events that included San Jacinto County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 195 | 10 | September 2, 2026 |
| Flood Advisory | 131 | 13 | October 2, 2026 |
| Dense Fog Advisory | 108 | 7 | November 2, 2026 |
| Flood Warning | 101 | 6 | September 3, 2026 |
| Heat Advisory | 75 | 7 | September 14, 2026 |
| Severe Thunderstorm Watch | 62 | 0 | October 25, 2025 |
| Flash Flood Warning | 58 | 8 | September 3, 2026 |
| Tornado Watch | 50 | 2 | March 11, 2026 |
| Flood Watch | 47 | 4 | September 1, 2026 |
| Tornado Warning | 29 | 0 | October 25, 2025 |
| Wind Advisory | 28 | 2 | September 1, 2026 |
| Freeze Warning | 16 | 2 | March 17, 2026 |
| Cold Weather Advisory | 15 | 1 | January 31, 2026 |
| Red Flag Warning | 12 | 1 | March 16, 2026 |
| Extreme Heat Warning | 11 | 2 | July 22, 2026 |
| Fire Weather Watch | 10 | 1 | March 16, 2026 |
| Winter Weather Advisory | 6 | 0 | January 15, 2024 |
| Freeze Watch | 6 | 1 | February 1, 2026 |
| Winter Storm Warning | 5 | 0 | January 21, 2025 |
| Extreme Cold Watch | 4 | 2 | January 26, 2026 |
| Extreme Cold Warning | 3 | 1 | January 25, 2026 |
| Winter Storm Watch | 3 | 1 | January 24, 2026 |
| Extreme Heat Watch | 3 | 0 | August 17, 2023 |
| Tropical Storm Warning | 2 | 0 | July 6, 2024 |
| Tropical Storm Watch | 1 | 0 | August 24, 2020 |
| Ice Storm Warning | 0 | 1 | January 24, 2026 |
Tornado history in San Jacinto County
21 tornadoes have been recorded in San Jacinto County since 1950, killing 1 people and injuring 9. That ranks 181 of 254 counties in Texas. The most recent was on February 18, 2013 (rated EF1).
Strongest tornadoes in San Jacinto County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 23, 1975 | F2 | San Jacinto County | 6.4 mi | 100 yd | 0 | 0 |
| December 16, 2001 | F2 | San Jacinto County | 3 mi | 200 yd | 0 | 2 |
| April 29, 2006 | F2 | San Jacinto County | 1 mi | 30 yd | 0 | 4 |
| December 10, 1983 | F1 | San Jacinto County | 3 mi | 200 yd | 1 | 3 |
| October 23, 1997 | F1 | San Jacinto County | 20 mi | 440 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| February 18, 2013 | EF1 | San Jacinto County | 0.6 mi | 30 yd | 0 | 0 |
| November 15, 2011 | EF0 | San Jacinto County | 0.1 mi | 20 yd | 0 | 0 |
| July 3, 2007 | EF0 | San Jacinto County | 0.1 mi | 10 yd | 0 | 0 |
| April 29, 2006 | F2 | San Jacinto County | 1 mi | 30 yd | 0 | 4 |
| November 23, 2004 | F0 | San Jacinto County | 0.1 mi | 20 yd | 0 | 0 |
About San Jacinto County
- Population: 29,326 (2024 estimate)
- State: Texas
- NOAA Weather Radio SAME code: 048407 (how to use it)