78830 Zip Code Natural Disasters and Weather Extremes
The chance of earthquake damage in 78830 Zip Code is about the same as Texas average and is much lower than the national average. The risk of tornado damage in 78830 Zip Code is much lower than Texas average and is much lower than the national average.
Earthquake Index, #1542
| 78830 Zip Code | 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
| 78830 Zip Code | 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, #2395
| 78830 Zip Code | 28.00 |
| 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 609 other weather extremes events within 50 miles of 78830 Zip Code 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: | 1 | Dense Fog: | 0 | Drought: | 10 |
| Dust Storm: | 0 | Flood: | 159 | Hail: | 241 | Heat: | 0 | Heavy Snow: | 21 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 5 | Landslide: | 0 | Strong Wind: | 38 |
| Thunderstorm Winds: | 119 | Tropical Storm: | 0 | Wildfire: | 4 | Winter Storm: | 4 | Winter Weather: | 2 |
| Other: | 3 | ||||||||
Volcanos Nearby
No volcano is found in or near 78830 Zip Code.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near 78830 Zip Code.
No historical earthquake events found in or near 78830 Zip Code.
Historical Tornado Events
A total of 12 historical tornado events that had recorded magnitude of 2 or above found in or near 78830 Zip Code.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 19.8 | 1970-08-03 | 2 | 28°44'N / 99°17'W | 0 | 0 | 25K | 0 | Frio | |||
| 20.1 | 1970-08-03 | 2 | 28°35'N / 99°11'W | 0 | 0 | 3K | 0 | Frio | |||
| 21.6 | 1956-10-18 | 2 | 28°41'N / 99°49'W | 1.00 Mile | 27 Yards | 0 | 0 | 3K | 0 | Zavala | |
| 22.0 | 1966-05-23 | 2 | 28°42'N / 99°50'W | 28°51'N / 99°38'W | 16.00 Miles | 133 Yards | 0 | 0 | 0K | 0 | Zavala |
| 22.7 | 1971-02-25 | 2 | 28°32'N / 99°53'W | 2.00 Miles | 50 Yards | 0 | 0 | 25K | 0 | Dimmit | |
| 28.1 | 1968-11-26 | 2 | 28°38'N / 99°13'W | 28°48'N / 98°59'W | 18.20 Miles | 50 Yards | 0 | 0 | 0K | 0 | Frio |
| 35.7 | 1955-06-05 | 2 | 28°02'N / 99°21'W | 28°02'N / 99°18'W | 3.60 Miles | 33 Yards | 0 | 0 | 250K | 0 | La Salle |
| 35.9 | 1973-04-15 | 4 | 28°50'N / 99°13'W | 28°49'N / 98°50'W | 23.30 Miles | 440 Yards | 5 | 12 | 0K | 0 | Frio |
| 44.3 | 1975-04-29 | 3 | 29°04'N / 99°11'W | 29°04'N / 99°03'W | 8.30 Miles | 500 Yards | 3 | 5 | 0K | 0 | Medina |
| 46.1 | 2002-04-07 | 2 | 29°07'N / 99°10'W | 29°08'N / 99°11'W | 1.00 Mile | 100 Yards | 0 | 0 | 200K | 0 | Medina |
| 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. | |||||||||||
| 47.4 | 1959-05-02 | 2 | 29°10'N / 99°39'W | 29°14'N / 99°39'W | 4.60 Miles | 1200 Yards | 0 | 0 | 250K | 0 | Bexar |
| 49.1 | 2006-03-19 | 2 | 29°13'N / 99°43'W | 29°13'N / 99°41'W | 2.00 Miles | 50 Yards | 0 | 0 | 1.5M | 0 | Uvalde |
| Brief Description: The most severe level of damage was located approximately 5 miles to the east of the Uvalde airport along Agape Road. This was due to a combination of both severe thunderstorm winds and a strong tornado. The wind damage, which had ended just south of Uvalde, once again was observed beginning just west of the Agape area by the team. The damage continued toward the east nearly one quarter mile to the Agape compound. Roof damage was noted at the first buildings, along with widespread damage to trees. Continuing to the east, the team found a mobile home that had been completely destroyed with the debris deposited about 30 yards to the south. This was the first time damage had been thrown in any direction except to the east and is believed to be just east of the starting point of the tornado. About 50 yards further to the east, an asphalt road was observed to have chunks of the topping removed and tossed toward the southeast. Very nearby, a large three-story concrete and steel-beam gymnasium valued at one million dollars had been gutted by the storm. The windward, west side was not blown inward as would have occurred with severe thunderstorm winds. Instead, it was pulled outward. A 40-foot steel beam had been bolted in a dozen different places to the building. The beam was pulled from the building and thrown back 15 feet to the northwest. Although many of the supporting steel beams held, several were pulled away and tossed. Concrete blocks, filled solid with concrete in their construction, had been ripped out of the building and lay tossed and strewn over the area. Much of the wall structure was destroyed. Pieces of sheet metal were strewn to the east and southeast for nearly one half mile. Additional damage to vegetation stretched for another 2 miles east of the gymnasium. Some of this damage was clearly due to severe thunderstorm winds and some of the damage was due to the tornado. Based on the level of damage of the mobile home and the gymnasium, the tornado was rated F2. The path width was estimated at 50 yards and the path length was estimated at 2 miles. From the reports available, it is thought the tornado developed about 1020 pm CST and dissipated around 1025 pm CST. It is the strongest tornado in South Central Texas since the evening of October 12, 2001, when an F3 tornado struck Stonewall, and an F2 tornado struck Hondo. | |||||||||||
* 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.