Tri-County School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Tri-County School District is about the same as Minnesota average and is much lower than the national average. The risk of tornado damage in Tri-County School District is much lower than Minnesota average and is much lower than the national average.
Earthquake Index, #212
| Tri-County School District | 0.00 |
| Minnesota | 0.01 |
| 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
| Tri-County School District | 0.0000 |
| Minnesota | 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, #450
| Tri-County School District | 59.38 |
| Minnesota | 135.90 |
| 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 1,286 other weather extremes events within 50 miles of Tri-County School District 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: | 50 | Cold: | 47 | Dense Fog: | 0 | Drought: | 12 |
| Dust Storm: | 0 | Flood: | 100 | Hail: | 617 | Heat: | 2 | Heavy Snow: | 17 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 10 | Landslide: | 0 | Strong Wind: | 19 |
| Thunderstorm Winds: | 341 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 46 | Winter Weather: | 0 |
| Other: | 25 | ||||||||
Volcanos Nearby
No volcano is found in or near Tri-County School District.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Tri-County School District.
No historical earthquake events found in or near Tri-County School District.
Historical Tornado Events
A total of 15 historical tornado events that had recorded magnitude of 2 or above found in or near Tri-County School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 24.1 | 1997-06-27 | 2 | 48°48'N / 96°02'W | 48°42'N / 96°07'W | 11.00 Miles | 150 Yards | 0 | 1 | 250K | 0 | Roseau |
| Brief Description: A tornado damaged 2 homes, several farm buildings, and 2 steel grain bins as it struck 10 miles north and 2 miles east of Greenbush. One man barely made it out of his trailer home before the tornado struck. As the tornado travelled between the 2 homes, it came close to a tractor plowing a field. A man in the tractor had glass blown into his eyes as the glass tractor cab shattered. A third home, 3 miles east and 2 miles north of Greenbush, was shifted off its foundation as the tornado passed. The tornado crossed highway 11, damaging a fourth home located 3 miles east of Greenbush, before dissipating. | |||||||||||
| 29.2 | 2005-06-23 | 2 | 48°56'N / 96°56'W | 48°57'N / 96°55'W | 1.00 Mile | 200 Yards | 0 | 0 | 0 | 0 | Kittson |
| Brief Description: A brief touchdown occurred in Orleans. The tornado destroyed six large grain bins at the elevator and one small storage shed. Peak winds were estimated at 120 mph. | |||||||||||
| 29.9 | 2005-07-02 | 2 | 48°51'N / 97°07'W | 48°52'N / 97°02'W | 4.00 Miles | 200 Yards | 0 | 0 | 0 | 0 | Kittson |
| Brief Description: This tornado moved east-northeast along a 4 mile curved path and damaged several grain bins, uprooted numerous trees, and demolished portions of a barn 4 miles west of Northcote. Peak winds were estimated at 130 mph. | |||||||||||
| 30.8 | 2005-07-02 | 2 | 48°56'N / 97°00'W | 48°57'N / 96°58'W | 2.00 Miles | 200 Yards | 0 | 0 | 0 | 0 | Kittson |
| Brief Description: Twin vortices merged to form one tornado, which tracked for two miles. The tornado demolished two steel grain bins and blew the debris one-half mile downwind. Peak winds were estimated at 130 mph. | |||||||||||
| 31.5 | 2005-07-02 | 2 | 48°55'N / 97°04'W | 48°54'N / 97°03'W | 1.50 Miles | 200 Yards | 0 | 0 | 0 | 0 | Kittson |
| Brief Description: The tornado demolished 3 large grain bins, tore the doors off a large steel building, and blew down a small radio tower. Peak winds were estimated at 140 mph. | |||||||||||
| 31.6 | 1978-05-26 | 2 | 48°55'N / 97°03'W | 0.50 Mile | 20 Yards | 0 | 0 | 250K | 0 | Grand Forks | |
| 32.0 | 2005-07-02 | 2 | 48°53'N / 97°05'W | 48°55'N / 97°05'W | 1.50 Miles | 200 Yards | 0 | 0 | 0 | 0 | Kittson |
| Brief Description: The tornado snapped off 2 power poles and tore 2 steel grain bins from their foundations. The steel debris was carried over one mile downwind. Peak winds were estimated at 120 mph. | |||||||||||
| 32.2 | 2004-05-19 | 3 | 48°55'N / 97°05'W | 48°55'N / 97°03'W | 1.50 Miles | 150 Yards | 0 | 0 | 200K | 0 | Kittson |
| Brief Description: The tornado demolished 4 structures. One of the structures, a 30x40 foot machine shed, was swept from its foundation and thrown into the adjacent fields. Tools from the shed were driven into the banks of a nearby highway. Other debris was spread over a mile away. Many trees were torn up. | |||||||||||
| 38.2 | 1999-07-14 | 2 | 48°12'N / 97°08'W | 48°11'N / 97°06'W | 2.00 Miles | 150 Yards | 0 | 0 | 100K | 0 | Marshall |
| Brief Description: The tornado lifted the roof off a warehouse, depositing it nearly 2 miles away to the southeast. A 6-ton truck was also pushed nearly 150 yards. | |||||||||||
| 40.3 | 1977-07-13 | 2 | 48°01'N / 96°37'W | 2.00 Miles | 120 Yards | 0 | 2 | 25K | 0 | Polk | |
| 42.6 | 1977-07-13 | 2 | 48°06'N / 97°06'W | 1.00 Mile | 100 Yards | 0 | 0 | 25K | 0 | Polk | |
| 43.1 | 1955-06-30 | 2 | 48°05'N / 97°10'W | 48°08'N / 97°06'W | 4.10 Miles | 77 Yards | 0 | 0 | 3K | 0 | Grand Forks |
| 43.8 | 1983-08-25 | 2 | 48°00'N / 96°14'W | 1.30 Miles | 100 Yards | 0 | 0 | 0K | 0 | Pennington | |
| 46.1 | 1980-07-11 | 2 | 47°57'N / 96°19'W | 47°58'N / 96°13'W | 3.80 Miles | 33 Yards | 0 | 0 | 2.5M | 0 | Pennington |
| 46.3 | 1980-07-11 | 2 | 47°56'N / 96°23'W | 47°57'N / 96°19'W | 2.30 Miles | 200 Yards | 0 | 0 | 2.5M | 0 | Red Lake |
* 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.