Meagher County Natural Disasters and Weather Extremes
The chance of earthquake damage in Meagher County is lower than Montana average and is lower than the national average. The risk of tornado damage in Meagher County is about the same as Montana average and is much lower than the national average.
Earthquake Index, #16
| Meagher County | 0.49 |
| Montana | 1.98 |
| 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, #7
| Meagher County | 0.0000 |
| Montana | 0.0002 |
| 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, #21
| Meagher County | 8.25 |
| Montana | 7.73 |
| 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 2,210 other weather extremes events within 50 miles of Meagher 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: | 36 | Cold: | 24 | Dense Fog: | 1 | Drought: | 11 |
| Dust Storm: | 0 | Flood: | 55 | Hail: | 938 | Heat: | 2 | Heavy Snow: | 168 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 7 | Landslide: | 0 | Strong Wind: | 196 |
| Thunderstorm Winds: | 553 | Tropical Storm: | 0 | Wildfire: | 20 | Winter Storm: | 115 | Winter Weather: | 10 |
| Other: | 74 | ||||||||
Volcanos Nearby
No volcano is found in or near Meagher County.
Historical Earthquake Events
A total of 12 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Meagher County.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 42.6 | 1925-06-28 | 6.8 | N/A | 46 | -111.2 |
| 33.9 | 1966-03-07 | 4.8 | N/A | 46.3 | -111.5 |
| 41.2 | 1977-03-11 | 4.8 | 5 | 46.13 | -111.48 |
| 33.7 | 1963-02-16 | 4.5 | N/A | 46.1 | -111 |
| 43.4 | 1972-11-02 | 4.5 | 5 | 46.1 | -111.5 |
| 38.3 | 1970-10-18 | 4.3 | 15 | 46.2 | -111.5 |
| 37.3 | 1975-05-02 | 4 | N/A | 46.18 | -111.44 |
| 49.2 | 1966-09-19 | 4 | N/A | 45.9 | -111.2 |
| 38.0 | 1984-02-28 | 3.8 | 5 | 46.18 | -111.46 |
| 47.9 | 1976-04-05 | 3.6 | 5 | 46.13 | -111.68 |
| 35.0 | 1972-11-02 | 3.5 | 5 | 46.2 | -111.4 |
| 38.3 | 1972-11-02 | 3.5 | 5 | 46.2 | -111.5 |
Historical Tornado Events
A total of 5 historical tornado events that had recorded magnitude of 2 or above found in or near Meagher County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 28.8 | 1965-07-10 | 2 | 46°48'N / 110°24'W | 2.00 Miles | 23 Yards | 0 | 1 | 25K | 0 | Judith Basin | |
| 36.7 | 1975-06-30 | 2 | 47°03'N / 111°18'W | 0 | 0 | 0K | 0 | Cascade | |||
| 36.8 | 2010-07-02 | 2 | 46°10'N / 110°26'W | 46°12'N / 110°24'W | 2.00 Miles | 150 Yards | 0 | 0 | 32.5M | 0K | Park |
| Brief Description: EVENT NARRATIVE: At approximately 345pm to about 352pm, a supercell thunderstorm produced a tornado with surrounding microburst damage occurred about 15 miles northeast of Wilsall over the foothills of the Crazy Mountains in Park County. Thousands of trees were damaged, including large trees that were uprooted or snapped off at the base. Trees as large as three to four feet in diameter were uprooted and/or snapped. EF-2 scale damage with estimated wind speeds up to 120 mph was determined with this tornado. EPISODE NARRATIVE: At approximately 345pm to about 352pm, a supercell thunderstorm producing a tornado with surrounding microburst damage along with large hail occurred about 15 miles northeast of Wilsall over the foothills of the Crazy Mountains in Park County. Thousands of trees were damaged, including large trees that were uprooted or snapped off at the base. Trees as large as three to four feet in diameter were uprooted and/or snapped. EF-2 scale damage with estimated wind speeds up to 120 mph was determined with this tornado. Large hail was also reported with this thunderstorm as it moved east of the Crazy Mountains. | |||||||||||
| 48.8 | 1994-04-24 | 2 | 47°08'N / 110°16'W | 1.50 Miles | 100 Yards | 0 | 0 | 500K | 0 | Judith Basin | |
| Brief Description: The Bill Skelton ranch was hit by two tornadoes. Damage was extensive. A barn roof made from 8 to 12 inch logs was carried away. A two foot in diameter cottonwood tree was snapped five feet above the ground. A 24-foot horse trailer was picked up and carried 65 yards landing on its top and it hit and damaged a tractor enroute. A 1.5 ton truck was tipped over and an out building made from heavy beams and spiked down was twisted and moved. A mobile home was lifted and a large fuel tank was deposited under it. Several one ton hay bales were moved 20-30 yards. Golf ball-sized hail fell ahead of the tornadoes and covered the ground to a depth of five inches. | |||||||||||
| 48.8 | 1994-04-24 | 2 | 47°08'N / 110°16'W | 1.00 Mile | 300 Yards | 0 | 0 | 50K | 0 | Judith Basin | |
| Brief Description: The Bill Skelton ranch was hit by two tornadoes. Damage was extensive. A barn roof made from 8 to 12 inch logs was carried away. A two foot in diameter cottonwood tree was snapped five feet above the ground. A 24-foot horse trailer was picked up and carried 65 yards landing on its top and it hit and damaged a tractor enroute. A 1.5 ton truck was tipped over and an out building made from heavy beams and spiked down was twisted and moved. A mobile home was lifted and a large fuel tank was deposited under it. Several one ton hay bales were moved 20-30 yards. Golf ball-sized hail fell ahead of the tornadoes and covered the ground to a depth of five inches. | |||||||||||
* 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.