San Jacinto County Natural Disasters and Weather Extremes
Hot Texas Rankings
The chance of earthquake damage in San Jacinto County is about the same as Texas average and is much lower than the national average. The risk of tornado damage in San Jacinto County is much lower than Texas average and is lower than the national average.
Earthquake Index, #121
| San Jacinto County | 0.01 |
| Texas | 0.04 |
| U.S. | 1.81 |
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #1
| San Jacinto County | 0.0000 |
| Texas | 0.0000 |
| U.S. | 0.0023 |
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #142
| San Jacinto County | 122.80 |
| Texas | 208.58 |
| U.S. | 136.45 |
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 8,189 other weather extremes events within 50 miles of San Jacinto County were recorded from 1950 to 2010. The following is a break down of these events:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 2 | Cold: | 7 | Dense Fog: | 0 | Drought: | 101 |
| Dust Storm: | 5 | Flood: | 1,089 | Hail: | 2,759 | Heat: | 19 | Heavy Snow: | 36 |
| High Surf: | 0 | Hurricane: | 12 | Ice Storm: | 39 | Landslide: | 0 | Strong Wind: | 75 |
| Thunderstorm Winds: | 3,570 | Tropical Storm: | 17 | Wildfire: | 20 | Winter Storm: | 38 | Winter Weather: | 38 |
| Other: | 362 | ||||||||
Volcanos Nearby
No volcano is found in or near San Jacinto County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near San Jacinto County.
No historical earthquake events found in or near San Jacinto County.
Historical Tornado Events
A total of 52 historical tornado events that had recorded magnitude of 2 or above found in or near San Jacinto County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 1.9 | 2006-04-29 | 2 | 30°36'N / 95°09'W | 30°36'N / 95°09'W | 1.00 Mile | 30 Yards | 0 | 4 | 100K | 0 | San Jacinto |
| Brief Description: Tornado in the Coldspring Terrace Subdivision along Lake Livingston. Four injuries in two homes that received major damage. | |||||||||||
| 10.1 | 1975-10-23 | 2 | 30°32'N / 95°03'W | 30°32'N / 94°57'W | 6.40 Miles | 100 Yards | 0 | 0 | 250K | 0 | San Jacinto |
| 13.9 | 1987-12-06 | 2 | 30°41'N / 94°58'W | 1.00 Mile | 200 Yards | 0 | 0 | 250K | 0 | Polk | |
| 14.0 | 2001-12-16 | 2 | 30°46'N / 95°13'W | 30°47'N / 95°11'W | 3.00 Miles | 200 Yards | 0 | 2 | 2.5M | 0 | San Jacinto |
| Brief Description: An F2 Tornado touched down at the Point Lookout West Estates. There were 2 minor injuries. 15 homes were destroyed, with 15 to 20 other homes receiving major damage. Trees and power lines were down. Reported by the Sheriff's office. | |||||||||||
| 17.5 | 1967-05-01 | 2 | 30°48'N / 95°07'W | 30°49'N / 94°59'W | 8.00 Miles | 67 Yards | 0 | 2 | 25K | 0 | Polk |
| 20.4 | 1999-01-01 | 2 | 30°50'N / 95°23'W | 30°46'N / 95°23'W | 5.00 Miles | 500 Yards | 0 | 0 | 750K | 0 | Trinity |
| Brief Description: Funnel reported over the Trinity River bridge. Storm abruptly took a right turn along the eastern shore of Lake Livingston. Tornado touched down 7 miles south of Trinity. Effected Timber Bay, Whiterock Estates, Azteck Cove and Timber Cove subdivisions. Major damage caused by trees falling on residences/vehicles. Strongest damage (and not necessarly caused by falling trees) occurred at Whiterock Estates. Resident in Timber Bay (where the first touchdown occurred) had anemometer that clocked 110 mph winds before it was blown away. Mostly F1 damage with F2 damage in Whiterock Estates. | |||||||||||
| 20.8 | 1954-02-19 | 2 | 30°19'N / 95°27'W | 30°27'N / 95°25'W | 9.50 Miles | 150 Yards | 0 | 7 | 250K | 0 | Montgomery |
| 21.1 | 1968-12-12 | 3 | 30°19'N / 95°26'W | 30°22'N / 95°21'W | 6.20 Miles | 200 Yards | 0 | 0 | 250K | 0 | Montgomery |
| 21.2 | 1979-04-18 | 2 | 30°15'N / 95°12'W | 30°17'N / 95°07'W | 4.00 Miles | 50 Yards | 0 | 0 | 250K | 0 | Montgomery |
| 21.3 | 1997-10-23 | 2 | 30°18'N / 95°21'W | 30°17'N / 95°16'W | 5.00 Miles | 440 Yards | 0 | 1 | 175K | 0 | Montgomery |
| Brief Description: This tornado was probably the most significant in strength and length that occurred this day. Several homes and mobile homes received major damage. There was one injury when a young boy was in a mobile home when the tornado picked it up and wrapped it around a tree. Damage to trees was extensive with many trees being snapped off above the ground. This storm was surveyed from the air and had continuous tree damage from Midway to Shepherd in San Jacinto County. | |||||||||||
| 21.6 | 1992-11-21 | 2 | 30°35'N / 94°48'W | 2.00 Miles | 200 Yards | 0 | 0 | 25K | 0 | Polk | |
| 21.9 | 1981-02-10 | 2 | 30°48'N / 95°34'W | 30°50'N / 95°14'W | 19.90 Miles | 100 Yards | 1 | 8 | 250K | 0 | Walker |
| 23.8 | 1973-06-04 | 2 | 30°45'N / 95°23'W | 31°04'N / 95°08'W | 26.40 Miles | 40 Yards | 0 | 0 | 250K | 0 | Walker |
| 24.3 | 1952-12-03 | 2 | 30°54'N / 95°18'W | 30°57'N / 95°05'W | 13.30 Miles | 100 Yards | 0 | 4 | 25K | 0 | Trinity |
| 24.6 | 1989-05-17 | 2 | 30°48'N / 94°53'W | 30°50'N / 94°50'W | 3.00 Miles | 150 Yards | 0 | 0 | 0K | 0 | Polk |
| 25.0 | 1957-03-31 | 2 | 30°43'N / 95°33'W | 2.00 Miles | 100 Yards | 0 | 2 | 25K | 0 | Walker | |
| 25.1 | 1976-03-30 | 2 | 30°49'N / 95°08'W | 30°59'N / 94°49'W | 22.10 Miles | 1300 Yards | 0 | 1 | 2.5M | 0 | Polk |
| 25.6 | 1992-11-21 | 3 | 30°06'N / 95°02'W | 30°27'N / 94°47'W | 28.00 Miles | 300 Yards | 0 | 1 | 2.5M | 0 | Liberty |
| 26.2 | 1957-10-22 | 3 | 30°15'N / 94°58'W | 30°15'N / 94°54'W | 4.30 Miles | 100 Yards | 0 | 1 | 25K | 0 | Liberty |
| 28.3 | 1987-12-06 | 2 | 30°53'N / 94°51'W | 1.00 Mile | 200 Yards | 0 | 0 | 2.5M | 0 | Polk | |
| 30.2 | 1957-10-14 | 2 | 30°12'N / 94°54'W | 0.50 Mile | 200 Yards | 0 | 0 | 25K | 0 | Liberty | |
| 33.0 | 1982-06-28 | 2 | 31°04'N / 95°08'W | 31°02'N / 95°05'W | 3.00 Miles | 73 Yards | 0 | 0 | 25K | 0 | Trinity |
| 34.0 | 1983-12-10 | 2 | 31°02'N / 95°14'W | 31°06'N / 95°04'W | 10.00 Miles | 50 Yards | 0 | 0 | 250K | 0 | Trinity |
| 35.6 | 1981-05-09 | 2 | 30°27'N / 95°45'W | 30°23'N / 95°43'W | 5.10 Miles | 40 Yards | 0 | 2 | 25K | 0 | Montgomery |
| 36.2 | 1992-11-21 | 3 | 30°01'N / 95°05'W | 30°06'N / 95°02'W | 4.00 Miles | 300 Yards | 0 | 0 | 25.0M | 0 | Harris |
| 37.8 | 1961-04-08 | 2 | 31°02'N / 94°49'W | 0.40 Mile | 17 Yards | 0 | 1 | 25K | 0 | Polk | |
| 38.8 | 1967-05-01 | 2 | 30°04'N / 94°53'W | 1.50 Miles | 33 Yards | 0 | 0 | 25K | 0 | Liberty | |
| 38.9 | 1961-09-12 | 3 | 30°09'N / 94°44'W | 0.50 Mile | 17 Yards | 0 | 0 | 0K | 0 | Liberty | |
| 39.5 | 1954-04-30 | 2 | 31°04'N / 95°07'W | 31°11'N / 94°51'W | 17.80 Miles | 883 Yards | 0 | 13 | 250K | 0 | Trinity |
| 39.6 | 1976-03-30 | 2 | 30°49'N / 94°49'W | 31°07'N / 94°32'W | 26.70 Miles | 1300 Yards | 0 | 0 | 250K | 0 | Polk |
| 40.0 | 1977-12-13 | 3 | 29°59'N / 95°03'W | 30°02'N / 94°59'W | 5.40 Miles | 400 Yards | 0 | 5 | 25K | 0 | Liberty |
| 40.5 | 1992-11-21 | 4 | 29°57'N / 95°00'W | 30°05'N / 94°54'W | 10.00 Miles | 200 Yards | 0 | 1 | 250K | 0 | Liberty |
| 40.6 | 1983-05-20 | 2 | 30°04'N / 95°34'W | 30°04'N / 95°27'W | 7.00 Miles | 333 Yards | 1 | 5 | 2.5M | 0 | Harris |
| 42.0 | 1965-09-22 | 3 | 30°13'N / 95°44'W | 0.80 Mile | 33 Yards | 0 | 0 | 0K | 0 | Montgomery | |
| 42.5 | 1973-05-26 | 2 | 30°07'N / 94°52'W | 30°01'N / 94°39'W | 14.70 Miles | 33 Yards | 0 | 4 | 250K | 0 | Liberty |
| 43.3 | 1994-04-15 | 2 | 29°57'N / 95°09'W | 29°57'N / 95°03'W | 5.00 Miles | 300 Yards | 1 | 20 | 50K | 0 | Harris |
| Brief Description: Tornado began on west shore of Lake Houston, crossed the lake then crossed the east shore in Indian Shores Estates. The air survey located minor damage and trees down on the west shore of the lake. Eye witnesses observed the tornado over the lake and WSR-88D reflectivity/ velocity data indicated a strong low-level mesocyclone near the west shore of the lake just prior to the first tornado reports. The tornado moved across the east shore of the lake and into Indian Shores Estates around 1710 CST and produced a damage path 300 to 400-yards wide and approximately 2.5 miles in length that ended about 1.5 miles east of the intersection of FM 2100 and Heathergate. One woman was killed in a mobile home, and 20 received injuries in the area. | |||||||||||
| 43.8 | 2004-11-23 | 2 | 31°10'N / 94°53'W | 31°09'N / 94°52'W | 2.00 Miles | 500 Yards | 0 | 0 | 100K | 0 | Trinity |
| Brief Description: Seven hunters in the Davy Crockett National Forest were stranded and their vehicles severely damaged. Seventy to ninety percent of trees in path felled or damaged. | |||||||||||
| 44.4 | 1986-02-05 | 3 | 30°02'N / 95°33'W | 29°59'N / 95°29'W | 5.00 Miles | 70 Yards | 2 | 0 | 25.0M | 0 | Harris |
| 44.9 | 1997-10-23 | 2 | 29°54'N / 95°04'W | 29°58'N / 95°00'W | 7.00 Miles | 440 Yards | 0 | 0 | 150K | 0 | Harris |
| Brief Description: The tornado first touched down on the east shore of Lake Houston and moved northeast into extreme western Liberty County. This tornado was mostly F0 and F1 with some F2 damage at Foley Rd and Dallas Rd where a boat house was extremely damaged. An 18-wheeler in the same area was overturned and moved 50 feet. | |||||||||||
| 45.9 | 1967-09-21 | 2 | 29°56'N / 95°22'W | 2.00 Miles | 50 Yards | 0 | 3 | 3K | 0 | Harris | |
| 46.2 | 1982-05-06 | 2 | 29°57'N / 94°53'W | 0.50 Mile | 37 Yards | 0 | 0 | 250K | 0 | Liberty | |
| 46.4 | 1967-02-20 | 2 | 30°49'N / 94°26'W | 0.50 Mile | 100 Yards | 0 | 0 | 250K | 0 | Tyler | |
| 46.9 | 1971-06-20 | 2 | 29°54'N / 95°04'W | 0.30 Mile | 50 Yards | 0 | 20 | 250K | 0 | Harris | |
| 47.1 | 1986-02-05 | 2 | 30°01'N / 95°37'W | 2.50 Miles | 70 Yards | 0 | 0 | 2.5M | 0 | Harris | |
| 47.2 | 1955-05-19 | 2 | 31°11'N / 94°48'W | 0.50 Mile | 67 Yards | 0 | 0 | 3K | 0 | Angelina | |
| 47.7 | 1977-12-13 | 3 | 29°47'N / 95°17'W | 29°59'N / 95°03'W | 19.70 Miles | 400 Yards | 1 | 35 | 25.0M | 0 | Harris |
| 47.9 | 1989-05-17 | 2 | 31°12'N / 94°58'W | 31°17'N / 94°55'W | 6.00 Miles | 400 Yards | 0 | 3 | 2.5M | 0 | Trinity |
| 48.2 | 1960-06-26 | 2 | 31°11'N / 94°46'W | 0.70 Mile | 100 Yards | 0 | 0 | 25K | 0 | Angelina | |
| 48.2 | 1960-09-22 | 2 | 31°11'N / 94°46'W | 0.40 Mile | 30 Yards | 0 | 0 | 250K | 0 | Angelina | |
| 48.2 | 1990-01-19 | 3 | 31°13'N / 94°57'W | 31°16'N / 94°54'W | 5.00 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Trinity |
| 48.8 | 1970-10-27 | 2 | 29°53'N / 95°20'W | 2.00 Miles | 40 Yards | 0 | 0 | 0K | 0 | Harris | |
| 49.9 | 1983-12-10 | 2 | 30°30'N / 94°33'W | 30°34'N / 94°06'W | 26.00 Miles | 700 Yards | 0 | 4 | 2.5M | 0 | Tyler |
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.