Holly, CO Natural Disasters and Weather Extremes
The chance of earthquake damage in Holly is lower than Colorado average and is lower than the national average. The risk of tornado damage in Holly is about the same as Colorado average and is lower than the national average.
Earthquake Index, #86
| Holly, CO | 1.00 |
| Colorado | 1.32 |
| 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, #187
| Holly, CO | 0.0000 |
| Colorado | 0.0009 |
| 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, #213
| Holly, CO | 119.80 |
| Colorado | 117.98 |
| 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 2,246 other weather extremes events within 50 miles of Holly, CO 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: | 1 | Drought: | 4 |
| Dust Storm: | 0 | Flood: | 70 | Hail: | 1,609 | Heat: | 14 | Heavy Snow: | 10 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 7 | Landslide: | 0 | Strong Wind: | 4 |
| Thunderstorm Winds: | 444 | Tropical Storm: | 0 | Wildfire: | 3 | Winter Storm: | 14 | Winter Weather: | 2 |
| Other: | 59 | ||||||||
Volcanos Nearby
No volcano is found in or near Holly, CO.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Holly, CO.
No historical earthquake events found in or near Holly, CO.
Historical Tornado Events
A total of 20 historical tornado events that had recorded magnitude of 2 or above found in or near Holly, CO.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 1.6 | 1968-06-24 | 2 | 38°04'N / 102°07'W | 38°05'N / 102°06'W | 0 | 1 | 25K | 0 | Prowers | ||
| 6.0 | 2007-03-28 | 3 | 38°01'N / 102°07'W | 38°16'N / 102°07'W | 17.00 Miles | 900 Yards | 2 | 9 | 4.0M | 0K | Prowers |
| Brief Description: EVENT NARRATIVE: With a maximum rating of EF3 and a maximum damage path width of 900 yards, the tornado raced through Holly, causing two fatalities and nine injuries. EPISODE NARRATIVE: A few severe thunderstorms occurred over extreme southeast Colorado... producing damaging winds and large hail. One supercell generated large hail...damaging winds...and two tornadoes. The tornado which struck Holly...rural northeast Prowers County...and rural southeast Kiowa County had a maximum rating of EF3. The path width reached a maximum of around 900 yards in extreme northeast Prowers County. Prior to this...as the tornado moved through Holly...the path width was around 600 feet. Over 200 residences and other buildings were affected or destroyed. Two people were killed and nine others were injured. The damage path was around 28 miles long...extending into Kiowa County. The last substantial damage with the tornado was 12 miles north of Holly...in northeast Prowers County...where a ranch sustained high end EF3 damage. As the supercell cycled through...another tornado occurred east of Towner...and moved into Kansas. | |||||||||||
| 17.9 | 1966-07-06 | 2 | 38°06'N / 101°48'W | 0 | 1 | 25K | 0 | Hamilton | |||
| 18.6 | 1962-05-17 | 2 | 37°59'N / 101°47'W | 38°10'N / 101°47'W | 12.60 Miles | 250 Yards | 0 | 0 | 25K | 0 | Hamilton |
| 18.9 | 2007-03-28 | 2 | 38°15'N / 102°04'W | 38°24'N / 102°04'W | 11.00 Miles | 400 Yards | 0 | 0 | 10K | 0K | Kiowa |
| Brief Description: EVENT NARRATIVE: The Prowers County tornado crossed into Kiowa County and traveled another 11 miles...destroying electrical transmission poles (EF2 damage). The tornado did not hit any other structures in Kiowa County. EPISODE NARRATIVE: A few severe thunderstorms occurred over extreme southeast Colorado... producing damaging winds and large hail. One supercell generated large hail...damaging winds...and two tornadoes. The tornado which struck Holly...rural northeast Prowers County...and rural southeast Kiowa County had a maximum rating of EF3. The path width reached a maximum of around 900 yards in extreme northeast Prowers County. Prior to this...as the tornado moved through Holly...the path width was around 600 feet. Over 200 residences and other buildings were affected or destroyed. Two people were killed and nine others were injured. The damage path was around 28 miles long...extending into Kiowa County. The last substantial damage with the tornado was 12 miles north of Holly...in northeast Prowers County...where a ranch sustained high end EF3 damage. As the supercell cycled through...another tornado occurred east of Towner...and moved into Kansas. | |||||||||||
| 20.1 | 1954-05-26 | 2 | 37°59'N / 101°46'W | 0.50 Mile | 100 Yards | 0 | 0 | 250K | 0 | Hamilton | |
| 26.9 | 1975-06-08 | 2 | 38°06'N / 102°37'W | 1.00 Mile | 220 Yards | 0 | 0 | 25K | 0 | Prowers | |
| 28.6 | 2001-05-29 | 3 | 38°04'N / 102°39'W | 38°06'N / 102°39'W | 3.00 Miles | 50 Yards | 0 | 0 | 150K | 0 | Prowers |
| Brief Description: Thunderstorms spawned six brief tornadoes and an F3 tornado within a three mile radius of the Lamar Municipal Airport between 1049 MST and 1231 MST just west of Lamar. The F3 tornado, which showed supercellular characteristics, completely destroyed a modular home and five vehicles in its vicinity, and damaged two other homes nearby. Eleven power poles were destroyed as well. | |||||||||||
| 33.4 | 1990-06-19 | 2 | 37°46'N / 101°38'W | 1.50 Miles | 150 Yards | 0 | 0 | 250K | 0 | Hamilton | |
| 36.2 | 1963-11-21 | 2 | 38°15'N / 101°44'W | 38°36'N / 101°34'W | 25.70 Miles | 100 Yards | 0 | 0 | 3K | 0 | Hamilton |
| 38.4 | 1970-05-30 | 2 | 37°32'N / 101°53'W | 0.50 Mile | 100 Yards | 0 | 0 | 25K | 0 | Stanton | |
| 39.1 | 1990-06-19 | 2 | 37°42'N / 101°34'W | 1.50 Miles | 150 Yards | 0 | 0 | 250K | 0 | Stanton | |
| 41.5 | 1972-08-22 | 2 | 37°34'N / 101°41'W | 0.10 Mile | 220 Yards | 0 | 0 | 25K | 0 | Stanton | |
| 42.5 | 1967-06-10 | 2 | 37°32'N / 102°27'W | 37°24'N / 102°15'W | 14.20 Miles | 100 Yards | 0 | 4 | 250K | 0 | Baca |
| 44.4 | 1999-06-22 | 3 | 38°22'N / 101°21'W | 38°19'N / 101°26'W | 4.00 Miles | 880 Yards | 0 | 0 | 250K | 0 | Wichita |
| Brief Description: A large tornado (F3) destroyed a farmstead. The house was nearly flattened by the tornado, and a tractor and grain combine/harvester were rolled several hundred feet. Tornado moved from East to West. | |||||||||||
| 46.4 | 1982-05-18 | 2 | 38°22'N / 102°53'W | 2.00 Miles | 200 Yards | 0 | 0 | 25K | 0 | Kiowa | |
| 46.9 | 1954-06-10 | 2 | 38°08'N / 101°16'W | 0 | 0 | 25K | 0 | Kearny | |||
| 48.0 | 1951-05-20 | 2 | 37°58'N / 101°15'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Kearny | |
| 49.2 | 1975-05-10 | 2 | 38°46'N / 102°45'W | 38°28'N / 102°37'W | 21.90 Miles | 440 Yards | 0 | 0 | 0K | 0 | Cheyenne |
| 49.9 | 1975-05-12 | 2 | 38°30'N / 102°58'W | 38°28'N / 102°46'W | 11.10 Miles | 440 Yards | 0 | 0 | 250K | 0 | Kiowa |
* 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.