Knox City, TX Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Knox City is about the same as Texas average and is much lower than the national average. The risk of tornado damage in Knox City is lower than Texas average and is higher than the national average.
Earthquake Index, #796
| Knox City, TX | 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
| Knox City, TX | 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, #1012
| Knox City, TX | 184.14 |
| 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 2,061 other weather extremes events within 50 miles of Knox City, TX 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: | 1 | Cold: | 4 | Dense Fog: | 0 | Drought: | 11 |
| Dust Storm: | 1 | Flood: | 100 | Hail: | 1,343 | Heat: | 4 | Heavy Snow: | 4 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 6 | Landslide: | 0 | Strong Wind: | 8 |
| Thunderstorm Winds: | 548 | Tropical Storm: | 0 | Wildfire: | 3 | Winter Storm: | 10 | Winter Weather: | 8 |
| Other: | 10 | ||||||||
Volcanos Nearby
No volcano is found in or near Knox City, TX.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Knox City, TX.
No historical earthquake events found in or near Knox City, TX.
Historical Tornado Events
A total of 56 historical tornado events that had recorded magnitude of 2 or above found in or near Knox City, TX.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 1.1 | 1953-03-13 | 4 | 33°24'N / 99°49'W | 33°25'N / 99°47'W | 2.70 Miles | 50 Yards | 5 | 5 | 2.5M | 0 | Knox |
| 3.1 | 1961-09-03 | 3 | 33°23'N / 99°51'W | 0.70 Mile | 30 Yards | 0 | 0 | 250K | 0 | Haskell | |
| 6.5 | 1953-03-13 | 4 | 33°17'N / 99°57'W | 33°24'N / 99°49'W | 11.20 Miles | 50 Yards | 12 | 20 | 2.5M | 0 | Haskell |
| 6.6 | 1955-05-25 | 2 | 33°25'N / 99°58'W | 33°33'N / 99°50'W | 11.90 Miles | 300 Yards | 0 | 0 | 3K | 0 | Knox |
| 7.1 | 1976-06-23 | 2 | 33°23'N / 99°42'W | 0.80 Mile | 440 Yards | 0 | 0 | 25K | 0 | Knox | |
| 11.1 | 1958-11-17 | 2 | 33°19'N / 99°40'W | 1.00 Mile | 33 Yards | 0 | 7 | 250K | 0 | Haskell | |
| 11.5 | 1971-05-04 | 2 | 33°25'N / 99°37'W | 2.00 Miles | 50 Yards | 0 | 0 | 0K | 0 | Knox | |
| 13.2 | 1969-08-22 | 2 | 33°32'N / 99°38'W | 0.30 Mile | 67 Yards | 0 | 0 | 250K | 0 | Knox | |
| 17.4 | 2009-06-13 | 2 | 33°12'N / 99°57'W | 33°10'N / 99°54'W | 4.00 Miles | 440 Yards | 0 | 0 | 1.0M | 0K | Haskell |
| Brief Description: EVENT NARRATIVE: A National Weather Service survey team found a quarter mile wide EF2 tornado that tore the roof off of four homes and desroyed several outbuildings, irrigation sprinklers, and power poles. EPISODE NARRATIVE: On June 13, thunderstorms developed along an outflow boundary across Northwest Texas. A supercell thunderstorm moved southeast across Haskell County and produced a strong tornado. There was significant damage near Rule. Also, large hail and widespread 60 to 70 mph winds were reported with this severe storm. | |||||||||||
| 17.4 | 1991-04-24 | 3 | 33°09'N / 99°46'W | 33°12'N / 99°42'W | 3.50 Miles | 200 Yards | 0 | 1 | 250K | 0 | Haskell |
| 17.6 | 1962-05-26 | 2 | 33°10'N / 99°46'W | 1.00 Mile | 67 Yards | 0 | 0 | 0K | 0 | Haskell | |
| 18.1 | 2005-05-13 | 3 | 33°38'N / 99°38'W | 33°29'N / 99°28'W | 16.00 Miles | 1000 Yards | 0 | 0 | 0 | 0 | Knox |
| Brief Description: The tornado began in Knox County and traveled just over 16 miles, eventually moving into Baylor County for less than a half a mile before dissipating 3.3 miles SW of Bomarton. The storm was being seeded by precipitation from another supercell just to its southwest and the tornado was apparently rain-wrapped throughout its duration. However mobile research radars, Doppler on Wheels (DOW), were able to track this tornado. The initial path of the tornado was to the south-southwest crossing U.S. Highway 82. The tornado then generally moved to the southeast for the rest of its life. This tornado moved through sparsely populated areas with no reported damage. Preliminary analysis of data from the Doppler On Wheels indicated a maximum wind velocity of 79 m/s (about 177 mph) at 30 m above ground level which was measured at 1829 CST when the tornado was in open country about 6 miles south of Vera. | |||||||||||
| 19.1 | 1963-04-05 | 2 | 33°09'N / 99°44'W | 1.00 Mile | 33 Yards | 0 | 0 | 3K | 0 | Haskell | |
| 19.1 | 1962-05-26 | 4 | 33°10'N / 99°46'W | 33°10'N / 99°35'W | 10.70 Miles | 133 Yards | 0 | 1 | 2.5M | 0 | Haskell |
| 20.7 | 1958-08-20 | 2 | 33°38'N / 99°34'W | 1.00 Mile | 50 Yards | 0 | 1 | 3K | 0 | Knox | |
| 20.8 | 1954-06-01 | 2 | 33°38'N / 99°35'W | 33°39'N / 99°34'W | 1.90 Miles | 133 Yards | 0 | 0 | 0K | 0 | Knox |
| 24.0 | 1957-08-12 | 2 | 33°26'N / 99°24'W | 0.40 Mile | 100 Yards | 0 | 0 | 25K | 0 | Baylor | |
| 25.1 | 2003-05-03 | 2 | 33°04'N / 99°38'W | 33°07'N / 99°37'W | 4.00 Miles | 440 Yards | 0 | 0 | 10K | 0 | Haskell |
| Brief Description: Spotters watched a large one quarter mile wide tornado that moved across the northeast portion of lake Stamford. This tornado came within yards of hitting the lake Stamford power plant, however it did knock down 11 transmission poles coming out of the power plant and eight distribution poles. This tornado was also filmed by a weather broadcaster from a local Abilene television station. An isolated severe thunderstorm formed along the dry line in the late afternoon in Dickens County. This thunderstorm split into two different cells with one going northeast into Oklahoma and the other moving almost due east across Stonewall, Haskell and Eastern Throckmorton Counties. As the thunderstorm was over eastern Stonewall County, it begin to take on tornadic radar signatures and continued to intensify as it moved into Haskell County. During it's two hour trek across Haskell County, it produced at least four tornadoes. Right after the storm crossed over into Throckmorton County it weakened rapidly and eventually dissipated over the southeastern portion of Throckmorton County. | |||||||||||
| 25.8 | 2004-03-04 | 2 | 33°05'N / 99°37'W | 33°05'N / 99°37'W | 1.00 Mile | 440 Yards | 0 | 0 | 100K | 0 | Haskell |
| Brief Description: Numerous manufactured homes were damaged or destroyed by the tornado along Lake Stamford. A strong upper level disturbance combined with a strong surface low pressure system moving across West Central Texas produced a significant squall line that moved through the entire San Angelo county warning area. This squall line was accompanied by 60 to 80 MPH winds which produced widespread damage, especially across the Big Country. Embedded within the squall line, were several Supercell thunderstorms which produced nine tornadoes within the San Angelo county warning area. | |||||||||||
| 26.2 | 1971-07-06 | 2 | 33°36'N / 99°25'W | 0.30 Mile | 10 Yards | 0 | 1 | 25K | 0 | Baylor | |
| 26.8 | 1957-10-07 | 2 | 33°37'N / 99°25'W | 2.00 Miles | 33 Yards | 0 | 0 | 3K | 0 | Baylor | |
| 31.2 | 1987-05-28 | 2 | 33°33'N / 100°25'W | 33°33'N / 100°15'W | 13.00 Miles | 100 Yards | 0 | 0 | 0K | 0 | King |
| 31.5 | 1982-05-30 | 2 | 33°00'N / 99°58'W | 32°57'N / 99°56'W | 3.00 Miles | 100 Yards | 0 | 0 | 250K | 0 | Haskell |
| 31.7 | 1976-04-15 | 2 | 33°26'N / 99°16'W | 0.10 Mile | 33 Yards | 0 | 0 | 0K | 0 | Baylor | |
| 32.2 | 1976-04-17 | 2 | 33°52'N / 99°50'W | 33°54'N / 99°47'W | 3.80 Miles | 150 Yards | 0 | 0 | 0K | 0 | Foard |
| 32.9 | 1955-04-05 | 2 | 32°56'N / 99°48'W | 32°57'N / 99°46'W | 2.70 Miles | 67 Yards | 0 | 3 | 250K | 0 | Jones |
| 33.0 | 1955-04-05 | 2 | 32°57'N / 99°46'W | 32°59'N / 99°29'W | 16.60 Miles | 67 Yards | 0 | 0 | 250K | 0 | Haskell |
| 33.0 | 1967-04-12 | 2 | 33°50'N / 100°06'W | 2.00 Miles | 50 Yards | 0 | 0 | 0K | 0 | Cottle | |
| 33.4 | 1982-05-30 | 2 | 32°57'N / 99°56'W | 32°56'N / 99°54'W | 2.00 Miles | 100 Yards | 0 | 0 | 250K | 0 | Jones |
| 33.5 | 2002-04-07 | 2 | 33°11'N / 99°20'W | 33°14'N / 99°15'W | 7.00 Miles | 1500 Yards | 0 | 0 | 10K | 0 | Throckmorton |
| Brief Description: Immediately after the first tornado dissipated, a second larger, more stable multiple vortex tornado developed. Tracking along a 7 mile long path across western Throckmorton County, this tornado would reach over three quarters of a mile wide. Fortunately, the tornado tracked largely over open county and damage was minimal for a tornado of this size. Partially buried fence posts were torn out of the ground and disappeared, while a 300 yard path was swept clean and a large mesquite tree was ripped out of the ground. Severe thunderstorms rolled across much of West Central Texas during the afternoon and evening hours of the 7th. Two supercells produced a total of 5 tornadoes, 3 across the northern Big Country in Throckmorton County and 2 more across the Northern Edwards Plateau in Crockett County. Although one of the tornadoes in Throckmorton was about three quarters of a mile wide and stayed on the ground for 16 minutes, it fortunately crossed open farmland, striking no homes were causing no injuries. Damage was more extensive with the southern supercell, with tennis ball size hail causing tens of thousands of dollars of damage to several ranch houses in eastern Crockett County. Other storms produced hail up to golf ball size across parts of the Concho Valley and Heartland. | |||||||||||
| 35.3 | 1961-05-07 | 3 | 32°56'N / 99°35'W | 32°58'N / 99°33'W | 3.60 Miles | 133 Yards | 0 | 0 | 250K | 0 | Shackelford |
| 35.4 | 1990-05-14 | 2 | 32°56'N / 100°01'W | 2.00 Miles | 100 Yards | 0 | 2 | 250K | 0 | Jones | |
| 37.0 | 1976-04-17 | 3 | 33°52'N / 99°30'W | 33°59'N / 99°43'W | 14.70 Miles | 150 Yards | 0 | 1 | 250K | 0 | Foard |
| 37.0 | 1962-04-26 | 2 | 32°52'N / 99°43'W | 32°55'N / 99°40'W | 4.70 Miles | 440 Yards | 0 | 0 | 25K | 0 | Jones |
| 37.1 | 1990-05-14 | 3 | 32°53'N / 99°53'W | 0.20 Mile | 10 Yards | 0 | 2 | 0K | 0 | Jones | |
| 37.5 | 1979-04-10 | 2 | 33°51'N / 99°48'W | 34°02'N / 99°29'W | 22.10 Miles | 33 Yards | 0 | 1 | 250K | 0 | Foard |
| 37.8 | 1979-04-10 | 2 | 33°37'N / 99°18'W | 33°42'N / 99°09'W | 10.40 Miles | 300 Yards | 0 | 0 | 25K | 0 | Baylor |
| 38.4 | 1990-05-14 | 2 | 32°53'N / 100°00'W | 0.20 Mile | 10 Yards | 0 | 2 | 0K | 0 | Jones | |
| 38.7 | 1994-02-19 | 2 | 32°55'N / 99°31'W | 0.10 Mile | 10 Yards | 0 | 0 | 0 | 0 | Shackelford | |
| Brief Description: A brief tornado formed in open country on the Nail Ranch. | |||||||||||
| 39.3 | 1971-05-31 | 2 | 33°50'N / 100°17'W | 2.00 Miles | 67 Yards | 0 | 0 | 3K | 0 | Cottle | |
| 39.5 | 1994-08-17 | 2 | 33°59'N / 99°43'W | 2.00 Miles | 40 Yards | 0 | 0 | 500K | 0 | Foard | |
| 39.8 | 1962-05-25 | 3 | 32°50'N / 100°00'W | 32°53'N / 99°58'W | 4.10 Miles | 67 Yards | 1 | 1 | 25K | 0 | Jones |
| 40.8 | 1989-05-15 | 2 | 33°40'N / 100°23'W | 33°45'N / 100°29'W | 7.00 Miles | 90 Yards | 0 | 0 | 25K | 0 | King |
| 41.2 | 1991-05-02 | 2 | 32°53'N / 100°08'W | 0.20 Mile | 10 Yards | 0 | 0 | 25K | 0 | Jones | |
| 41.7 | 1990-05-14 | 2 | 32°50'N / 100°00'W | 0.20 Mile | 10 Yards | 0 | 3 | 0K | 0 | Jones | |
| 42.0 | 1980-08-23 | 2 | 32°55'N / 99°26'W | 32°52'N / 99°28'W | 4.30 Miles | 73 Yards | 0 | 0 | 250K | 0 | Palo Pinto |
| 42.1 | 1955-04-05 | 2 | 32°59'N / 99°29'W | 33°02'N / 99°04'W | 24.40 Miles | 67 Yards | 0 | 3 | 250K | 0 | Throckmorton |
| 42.2 | 1980-04-02 | 4 | 33°36'N / 99°11'W | 33°41'N / 99°05'W | 8.40 Miles | 250 Yards | 0 | 0 | 0K | 0 | Baylor |
| 43.2 | 1954-06-01 | 3 | 34°01'N / 100°18'W | 33°52'N / 100°09'W | 13.40 Miles | 267 Yards | 1 | 14 | 2.5M | 0 | Cottle |
| 43.5 | 1957-04-20 | 2 | 33°48'N / 100°25'W | 0.40 Mile | 100 Yards | 0 | 0 | 3K | 0 | King | |
| 43.9 | 1954-05-01 | 4 | 33°59'N / 99°43'W | 34°04'N / 99°28'W | 15.40 Miles | 267 Yards | 0 | 0 | 25K | 0 | Foard |
| 44.1 | 1979-04-10 | 4 | 33°59'N / 99°35'W | 34°02'N / 99°28'W | 7.60 Miles | 880 Yards | 0 | 0 | 3K | 0 | Foard |
| 45.3 | 1969-06-19 | 2 | 32°47'N / 99°37'W | 0.10 Mile | 10 Yards | 0 | 0 | 25K | 0 | Jones | |
| 49.1 | 1985-04-21 | 3 | 33°14'N / 99°00'W | 33°15'N / 98°59'W | 1.50 Miles | 400 Yards | 3 | 0 | 250K | 0 | Throckmorton |
| 49.3 | 1956-05-08 | 2 | 34°01'N / 100°17'W | 1.00 Mile | 67 Yards | 0 | 0 | 3K | 0 | Cottle | |
| 49.7 | 1991-04-24 | 2 | 33°18'N / 100°45'W | 33°18'N / 100°35'W | 12.10 Miles | 350 Yards | 0 | 0 | 25K | 0 | Kent |
* 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.