Grimes County Natural Disasters and Weather Extremes
Hot Texas Rankings
The chance of earthquake damage in Grimes County is about the same as Texas average and is much lower than the national average. The risk of tornado damage in Grimes County is much lower than Texas average and is lower than the national average.
Earthquake Index, #158
| Grimes County | 0.00 |
| 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
| Grimes 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, #155
| Grimes County | 112.81 |
| 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 8,555 other weather extremes events within 50 miles of Grimes 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: | 0 | Cold: | 12 | Dense Fog: | 0 | Drought: | 155 |
| Dust Storm: | 6 | Flood: | 1,326 | Hail: | 3,050 | Heat: | 23 | Heavy Snow: | 32 |
| High Surf: | 3 | Hurricane: | 4 | Ice Storm: | 37 | Landslide: | 0 | Strong Wind: | 72 |
| Thunderstorm Winds: | 3,369 | Tropical Storm: | 13 | Wildfire: | 15 | Winter Storm: | 41 | Winter Weather: | 42 |
| Other: | 355 | ||||||||
Volcanos Nearby
No volcano is found in or near Grimes County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Grimes County.
No historical earthquake events found in or near Grimes County.
Historical Tornado Events
A total of 49 historical tornado events that had recorded magnitude of 2 or above found in or near Grimes County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 15.4 | 1981-02-10 | 2 | 30°46'N / 96°00'W | 2.50 Miles | 77 Yards | 0 | 2 | 250K | 0 | Grimes | |
| 16.8 | 1953-12-02 | 2 | 30°22'N / 96°11'W | 2 | 5 | 0K | 0 | Washington | |||
| 17.5 | 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 |
| 17.6 | 1983-11-19 | 2 | 30°24'N / 96°14'W | 1.10 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Brazos | |
| 18.6 | 1964-05-01 | 2 | 30°18'N / 96°12'W | 30°20'N / 96°07'W | 5.60 Miles | 880 Yards | 0 | 0 | 25K | 0 | Washington |
| 21.1 | 1954-04-30 | 2 | 30°38'N / 96°20'W | 30°39'N / 96°19'W | 1.90 Miles | 67 Yards | 0 | 0 | 0K | 0 | Brazos |
| 22.2 | 1956-04-05 | 3 | 30°41'N / 96°22'W | 30°41'N / 96°17'W | 5.20 Miles | 67 Yards | 0 | 0 | 250K | 0 | Brazos |
| 26.1 | 1954-10-22 | 2 | 30°55'N / 96°07'W | 30°55'N / 96°00'W | 7.10 Miles | 100 Yards | 0 | 0 | 25K | 0 | Madison |
| 26.4 | 1967-05-01 | 2 | 30°55'N / 96°05'W | 0.60 Mile | 33 Yards | 0 | 0 | 3K | 0 | Madison | |
| 27.2 | 1965-09-22 | 3 | 30°13'N / 95°44'W | 0.80 Mile | 33 Yards | 0 | 0 | 0K | 0 | Montgomery | |
| 28.6 | 1957-03-31 | 2 | 30°43'N / 95°33'W | 2.00 Miles | 100 Yards | 0 | 2 | 25K | 0 | Walker | |
| 29.5 | 1957-10-14 | 3 | 30°07'N / 96°00'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Waller | |
| 30.1 | 1953-12-02 | 2 | 30°38'N / 96°29'W | 0.20 Mile | 67 Yards | 0 | 0 | 25K | 0 | Brazos | |
| 31.3 | 1957-10-14 | 2 | 30°06'N / 96°06'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Waller | |
| 32.8 | 2000-03-10 | 3 | 30°25'N / 96°41'W | 30°24'N / 96°21'W | 21.00 Miles | 800 Yards | 0 | 2 | 1.0M | 0 | Burleson |
| Brief Description: Tornado touched down near Harmony at 1955 CST with significant tree damage including an 18 inch diameter tree blown down. A trailer was also significantly damaged. Tornado then tracked to just south of Center Line with mostly F0 tree damage along its path. Tornado then reached the Pin Oak subdivision at about 2022 CST. Several trailers, including a double-wide, were destroyed. A total of 7 homes were destroyed and another 10 severely damaged in this area, with damage reaching F2 status. Tornado then struck a ranch on the south side of FM 1361 with large trees uprooted or cut in half and windows blown out and portion of roof torn off large frame house. Several rural outbuildings at the ranch which had been bolted down were destroyed. Damage in this area was rated F3 with damage swath up to a half mile wide. Tornado then tracked to just north of Clay by 2051 CST with a narrow swath of F0 to F1 tree damage along the path. When tornado passed north of Clay before dissipating, car was blown off road and damage swath reached 200 yards wide. | |||||||||||
| 33.1 | 1962-06-18 | 2 | 30°04'N / 95°56'W | 0 | 0 | 0K | 0 | Waller | |||
| 33.7 | 1950-06-05 | 3 | 30°11'N / 96°24'W | 30°01'N / 96°03'W | 23.90 Miles | 67 Yards | 0 | 6 | 250K | 0 | Washington |
| 33.9 | 1987-11-15 | 2 | 30°58'N / 96°04'W | 31°06'N / 95°58'W | 7.00 Miles | 200 Yards | 3 | 2 | 2.5M | 0 | Madison |
| 34.3 | 1957-10-14 | 2 | 30°03'N / 95°55'W | 0.50 Mile | 17 Yards | 0 | 0 | 25K | 0 | Waller | |
| 34.8 | 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 |
| 34.9 | 1969-04-04 | 2 | 30°30'N / 96°38'W | 30°35'N / 96°31'W | 9.00 Miles | 440 Yards | 0 | 0 | 3K | 0 | Burleson |
| 35.1 | 1971-02-25 | 2 | 30°10'N / 96°23'W | 0.30 Mile | 33 Yards | 0 | 0 | 3K | 0 | Washington | |
| 35.1 | 1971-02-25 | 2 | 30°10'N / 96°23'W | 0.30 Mile | 33 Yards | 0 | 0 | 0K | 0 | Washington | |
| 36.0 | 1959-05-10 | 3 | 30°46'N / 96°36'W | 30°54'N / 96°23'W | 15.80 Miles | 333 Yards | 0 | 7 | 3K | 0 | Robertson |
| 38.1 | 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 |
| 39.7 | 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 |
| 40.1 | 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. | |||||||||||
| 40.3 | 1987-11-15 | 2 | 31°06'N / 95°58'W | 31°09'N / 95°54'W | 3.00 Miles | 200 Yards | 0 | 0 | 2.5M | 0 | Leon |
| 40.5 | 1954-04-30 | 3 | 30°37'N / 97°12'W | 31°29'N / 95°28'W | 118.8 Miles | 880 Yards | 0 | 0 | 250K | 0 | Milam |
| 41.2 | 1989-06-07 | 2 | 30°39'N / 96°44'W | 30°36'N / 96°37'W | 6.00 Miles | 150 Yards | 0 | 4 | 2.5M | 0 | Burleson |
| 41.4 | 1998-10-17 | 2 | 30°30'N / 96°41'W | 30°33'N / 96°41'W | 3.50 Miles | 100 Yards | 0 | 0 | 1.5M | 0 | Burleson |
| Brief Description: Two tornadoes touched down in the Caldwell area causing substantial damage. Twenty-two homes were completely destroyed, 37 sustained major damage, and 101 homes with minor damage. Caldwell Middle School also had major damage. Tombstones weighing more than 1000 pounds were unearthed and moved. | |||||||||||
| 41.6 | 1984-02-11 | 2 | 31°05'N / 96°18'W | 1.50 Miles | 100 Yards | 0 | 3 | 2.5M | 0 | Leon | |
| 42.3 | 1987-11-15 | 2 | 30°35'N / 96°41'W | 30°41'N / 96°42'W | 7.00 Miles | 500 Yards | 2 | 12 | 2.5M | 0 | Burleson |
| 42.6 | 1986-02-05 | 2 | 30°01'N / 95°37'W | 2.50 Miles | 70 Yards | 0 | 0 | 2.5M | 0 | Harris | |
| 43.0 | 1973-02-13 | 2 | 29°58'N / 95°43'W | 29°59'N / 95°40'W | 3.30 Miles | 30 Yards | 0 | 1 | 25K | 0 | Harris |
| 43.5 | 1987-11-15 | 2 | 30°41'N / 96°42'W | 30°45'N / 96°41'W | 3.00 Miles | 500 Yards | 0 | 0 | 2.5M | 0 | Milam |
| 43.6 | 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 |
| 44.0 | 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. | |||||||||||
| 44.2 | 1961-03-16 | 2 | 29°57'N / 96°16'W | 0.10 Mile | 80 Yards | 0 | 0 | 3K | 0 | Austin | |
| 44.6 | 1981-05-16 | 2 | 30°27'N / 96°48'W | 30°24'N / 96°39'W | 9.70 Miles | 73 Yards | 0 | 1 | 250K | 0 | Burleson |
| 45.2 | 1957-03-20 | 3 | 30°23'N / 96°47'W | 30°27'N / 96°41'W | 7.60 Miles | 880 Yards | 0 | 0 | 25K | 0 | Burleson |
| 46.4 | 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 |
| 46.9 | 1989-06-07 | 2 | 30°40'N / 96°48'W | 30°39'N / 96°44'W | 4.00 Miles | 150 Yards | 0 | 0 | 2.5M | 0 | Milam |
| 48.8 | 1981-05-09 | 2 | 30°35'N / 96°52'W | 30°29'N / 96°45'W | 9.70 Miles | 33 Yards | 0 | 0 | 250K | 0 | Burleson |
| 49.3 | 1986-02-05 | 2 | 29°50'N / 95°49'W | 29°52'N / 95°46'W | 4.00 Miles | 170 Yards | 0 | 0 | 250K | 0 | Harris |
| 49.5 | 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. | |||||||||||
| 49.6 | 1992-11-21 | 2 | 29°47'N / 95°46'W | 29°58'N / 95°36'W | 21.00 Miles | 200 Yards | 0 | 5 | 25.0M | 0 | Harris |
| 49.9 | 1986-02-05 | 2 | 29°50'N / 95°51'W | 29°50'N / 95°49'W | 4.00 Miles | 170 Yards | 0 | 5 | 250K | 0 | Waller |
| 50.0 | 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. | |||||||||||
* 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.