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Atascosa County Natural Disasters and Weather Extremes

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The chance of earthquake damage in Atascosa County is about the same as Texas average and is much lower than the national average. The risk of tornado damage in Atascosa County is much lower than Texas average and is lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #5

Atascosa County

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

Atascosa County

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, #185

Atascosa County

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 6,076 other weather extremes events within 50 miles of Atascosa County were recorded from 1950 to 2010. The following is a break down of these events:

Avalanche:0Blizzard:2Cold:14Dense Fog:2Drought:183
Dust Storm:2Flood:1,936Hail:2,149Heat:10Heavy Snow:41
High Surf:2Hurricane:1Ice Storm:19Landslide:0Strong Wind:85
Thunderstorm Winds:1,388Tropical Storm:10Wildfire:24Winter Storm:33Winter Weather:41

Volcanos Nearby

No volcano is found in or near Atascosa County.

Historical Earthquake Events

A total of 1 historical earthquake event that had a recorded magnitude of 3.5 or above found in or near Atascosa County.

Distance (miles)DateMagnitudeDepth (km)LatitudeLongitude

Historical Tornado Events

A total of 26 historical tornado events that had recorded magnitude of 2 or above found in or near Atascosa County.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
19.31965-05-18229°07'N / 98°20'W000K0Wilson
23.01970-09-13229°13'N / 98°26'W0.10 Mile17 Yards003K0Bexar
26.81965-09-18228°39'N / 98°11'W1.50 Miles880 Yards0025K0Live Oak
27.02002-03-19229°15'N / 98°41'W29°16'N / 98°42'W1.50 Miles50 Yards0302.0M0Bexar
 Brief Description: Tornado number five, strongest of the six and rated as a minimal F2 tornado on the Fujita Scale, formed about 3.5 miles southwest of the intersection of Loop 1604 and I35. It struck near 720 pm along near Silver Street and Bravo Street and moved toward the north for 1.5 miles. It apparently weakened periodically, producing a hit-and-miss damage path. It completely destroyed four mobile homes and damaged several others.
28.31959-05-10229°16'N / 98°20'W1.00 Mile33 Yards003K0Bexar
30.41973-04-15428°50'N / 99°13'W28°49'N / 98°50'W23.30 Miles440 Yards5120K0Frio
33.81961-11-22329°23'N / 98°32'W1.00 Mile50 Yards003K0Bexar
34.41969-05-03229°23'N / 98°25'W1.00 Mile67 Yards00250K0Bexar
34.61967-05-08228°58'N / 98°02'W29°01'N / 97°54'W8.90 Miles440 Yards003K0Karnes
35.11959-05-10228°29'N / 98°26'W28°20'N / 98°17'W13.80 Miles150 Yards0025K0Mcmullen
36.11980-08-10229°25'N / 98°25'W29°25'N / 98°37'W12.20 Miles100 Yards02250K0Bexar
36.71968-11-26228°38'N / 99°13'W28°48'N / 98°59'W18.20 Miles50 Yards000K0Frio
37.41969-05-16229°25'N / 98°30'W29°27'N / 98°27'W4.30 Miles100 Yards03250K0Bexar
37.51975-04-29329°04'N / 99°11'W29°04'N / 99°03'W8.30 Miles500 Yards350K0Medina
38.11988-09-17229°24'N / 98°38'W29°29'N / 98°35'W5.00 Miles50 Yards0325.0M0Bexar
39.91958-05-02229°17'N / 98°51'W29°34'N / 98°44'W20.80 Miles200 Yards00250K0Medina
40.01967-05-29328°24'N / 98°11'W1.00 Mile33 Yards003K0Live Oak
40.21956-10-20228°27'N / 98°06'W1.50 Miles33 Yards000K0Live Oak
40.41966-04-25328°49'N / 97°52'W28°49'N / 97°52'W03250K0Karnes
42.22002-04-07229°07'N / 99°10'W29°08'N / 99°11'W1.00 Mile100 Yards00200K0Medina
 Brief Description: As a new supercell formed in southern Medina County and tracked eastward, it spawned an F2 tornado just west of the small community of Yancey. This was very close to the the site where a devastating F3 killer tornado had struck almost exactly 27 years earlier. This tornado touched down along County Road 731, destroying two homes. It moved toward the northeast for one mile, damaging two other homes and a mobile home while rolling over a car and knocking down several large trees.
45.11970-08-03228°35'N / 99°11'W003K0Frio
46.51953-04-28329°33'N / 98°32'W29°35'N / 98°28'W4.90 Miles200 Yards15250K0Hays
47.01970-08-03228°44'N / 99°17'W0025K0Frio
47.61953-04-28429°34'N / 98°42'W1.00 Mile1760 Yards2150K0Bexar
49.01954-07-12229°35'N / 98°20'W1.00 Mile33 Yards003K0Bexar
49.72001-10-12229°22'N / 99°10'W29°21'N / 99°09'W1.20 Miles500 Yards02520.0M50KMedina
 Brief Description: The tornado was spotted as it touched down near 940 pm CST just northwest of the Hondo airport. It grew to nearly 500 yards in width and moved toward the southeast for 1.2 miles across the airport and over the National Guard Armory before dissipating near the center of town. Although much of the damage was F0 and F1 on the Fujita Scale, the tornado was rated F2 because of the level of damage from the airport to the armory. During this time it destroyed a large hangar, partially destroyed the roof and walls of the concrete Armory and moved numerous mobile homes off their pads. One mobile home clearly showed the nature of damage from a tornado. The center of the mobile home was completely destroyed, along with a tree in front of it, while much less damage was indicted on both ends of the mobile home as well as vegetation near the ends. The storm also knocked out power to much of the area, and this, along with the darkness in the late night hour, made spotting very difficult. It is possible that additional small tornadoes might have accompanied the storm, but the combination of damage from the large tornado and the downburst winds, along with the darkness of the late night hour made it impossible to tell. Almost 150 homes in Hondo and almost 50 more outside the city were damaged, with nearly 100 mobile homes damaged. At least 10 houses and 30 mobile homes were destroyed. Losses to homes and mobile homes were estimated at 1.5 million dollars. In addition, nearly two dozen aircraft, including one corporate jet and 14 crop dusters, were damaged and destroyed at the Hondo Airport. Some were in collapsed hangars while others were lifted, tossed and set down across the Airport area. Commercial losses placed at 18 million dollars. At least 25 persons were injured.

* 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.

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