Lewiston-Altura Public School District Natural Disasters and Weather Extremes
The chance of earthquake damage in Lewiston-Altura Public School District is about the same as Minnesota average and is much lower than the national average. The risk of tornado damage in Lewiston-Altura Public School District is lower than Minnesota average and is lower than the national average.
Earthquake Index, #212
| Lewiston-Altura Public 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
| Lewiston-Altura Public 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, #365
| Lewiston-Altura Public School District | 113.71 |
| 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 3,523 other weather extremes events within 50 miles of Lewiston-Altura Public 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: | 21 | Cold: | 62 | Dense Fog: | 62 | Drought: | 17 |
| Dust Storm: | 0 | Flood: | 273 | Hail: | 1,209 | Heat: | 45 | Heavy Snow: | 102 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 22 | Landslide: | 0 | Strong Wind: | 70 |
| Thunderstorm Winds: | 1,241 | Tropical Storm: | 0 | Wildfire: | 6 | Winter Storm: | 207 | Winter Weather: | 44 |
| Other: | 142 | ||||||||
Volcanos Nearby
No volcano is found in or near Lewiston-Altura Public School District.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Lewiston-Altura Public School District.
No historical earthquake events found in or near Lewiston-Altura Public School District.
Historical Tornado Events
A total of 38 historical tornado events that had recorded magnitude of 2 or above found in or near Lewiston-Altura Public School District.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 1.9 | 1999-07-08 | 2 | 44°00'N / 91°54'W | 43°58'N / 91°51'W | 3.50 Miles | 100 Yards | 0 | 2 | 2.0M | 60K | Winona |
| Brief Description: A tornado touched down just northwest of Lewiston (Winona County), then moved into the middle of town and intensified. Numerous homes along Main Street had extensive damage with broken windows, damaged roofs and downed trees. One home had the entire roof taken off, while at least 4 cars were demolished from debris landing on them. A farm southeast of town had every building destroyed, except the house. Of the 1,300 population in Lewiston, only two people sustained minor injuries. Elsewhere across southeast Minnesota, spotters and law enforcement officials reported hail up to 2 inches in diameter along with trees and power lines knocked down. | |||||||||||
| 6.1 | 1980-06-05 | 2 | 43°58'N / 91°51'W | 43°53'N / 91°51'W | 5.70 Miles | 100 Yards | 0 | 0 | 250K | 0 | Winona |
| 7.5 | 1953-05-10 | 4 | 44°00'N / 92°05'W | 44°12'N / 91°51'W | 17.80 Miles | 33 Yards | 0 | 5 | 2.5M | 0 | Winona |
| 8.4 | 1982-05-17 | 2 | 43°58'N / 92°05'W | 44°12'N / 91°57'W | 14.00 Miles | 800 Yards | 0 | 0 | 250K | 0 | Winona |
| 13.6 | 1953-05-10 | 4 | 43°51'N / 92°10'W | 44°00'N / 92°05'W | 10.80 Miles | 33 Yards | 1 | 6 | 2.5M | 0 | Olmsted |
| 13.8 | 1982-05-17 | 2 | 44°12'N / 91°57'W | 44°13'N / 91°54'W | 3.00 Miles | 800 Yards | 0 | 0 | 250K | 0 | Wabasha |
| 18.3 | 1982-05-17 | 2 | 44°13'N / 91°54'W | 44°20'N / 91°49'W | 9.00 Miles | 200 Yards | 0 | 3 | 2.5M | 0 | Buffalo |
| 20.7 | 1967-04-30 | 2 | 43°56'N / 92°21'W | 44°00'N / 92°14'W | 6.80 Miles | 33 Yards | 0 | 0 | 25.0M | 0 | Olmsted |
| 22.1 | 1965-05-05 | 3 | 43°41'N / 91°44'W | 43°51'N / 91°27'W | 18.00 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Houston |
| 24.1 | 1977-07-14 | 2 | 43°42'N / 92°16'W | 43°48'N / 92°08'W | 9.20 Miles | 1500 Yards | 0 | 10 | 2.5M | 0 | Fillmore |
| 25.4 | 1965-05-05 | 3 | 43°51'N / 91°27'W | 43°55'N / 91°21'W | 6.20 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Winona |
| 26.2 | 1979-07-03 | 2 | 43°57'N / 92°24'W | 0.50 Mile | 100 Yards | 0 | 0 | 2.5M | 0 | Olmsted | |
| 26.9 | 1962-09-16 | 2 | 43°51'N / 92°25'W | 43°53'N / 92°21'W | 3.00 Miles | 33 Yards | 0 | 0 | 25K | 0 | Olmsted |
| 28.5 | 1962-09-16 | 4 | 43°58'N / 92°27'W | 0.50 Mile | 33 Yards | 0 | 34 | 250K | 0 | Olmsted | |
| 29.0 | 1965-05-05 | 3 | 43°30'N / 92°01'W | 43°41'N / 91°44'W | 18.80 Miles | 100 Yards | 0 | 6 | 2.5M | 0 | Fillmore |
| 29.3 | 1964-04-13 | 2 | 43°57'N / 92°28'W | 44°00'N / 92°28'W | 3.40 Miles | 50 Yards | 0 | 0 | 250K | 0 | Olmsted |
| 29.5 | 1959-05-26 | 3 | 44°00'N / 91°25'W | 44°13'N / 91°11'W | 18.70 Miles | 67 Yards | 0 | 0 | 250K | 0 | Trempealeau |
| 30.0 | 1953-05-10 | 4 | 44°12'N / 91°51'W | 44°36'N / 91°22'W | 36.40 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Buffalo |
| 30.4 | 1953-05-10 | 4 | 43°30'N / 92°23'W | 43°51'N / 92°10'W | 26.20 Miles | 33 Yards | 1 | 6 | 2.5M | 0 | Fillmore |
| 30.7 | 1964-08-28 | 2 | 44°17'N / 92°21'W | 44°20'N / 92°20'W | 2.70 Miles | 67 Yards | 0 | 0 | 250K | 0 | Wabasha |
| 31.3 | 1962-05-22 | 2 | 43°53'N / 92°29'W | 0.50 Mile | 33 Yards | 0 | 0 | 25K | 0 | Olmsted | |
| 36.0 | 1957-04-19 | 2 | 43°58'N / 91°10'W | 43°58'N / 91°09'W | 0 | 0 | 0K | 0 | La Crosse | ||
| 36.0 | 1968-03-27 | 2 | 44°18'N / 91°21'W | 44°22'N / 91°16'W | 5.70 Miles | 100 Yards | 0 | 1 | 250K | 0 | Trempealeau |
| 36.1 | 1961-05-14 | 2 | 43°48'N / 91°13'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | La Crosse | |
| 36.3 | 1965-05-05 | 3 | 43°55'N / 91°21'W | 44°04'N / 90°57'W | 22.20 Miles | 100 Yards | 0 | 1 | 2.5M | 0 | La Crosse |
| 39.0 | 1965-05-05 | 2 | 43°30'N / 92°36'W | 43°48'N / 92°22'W | 23.60 Miles | 33 Yards | 0 | 0 | 25K | 0 | Mower |
| 39.2 | 1981-04-29 | 2 | 44°12'N / 92°39'W | 44°12'N / 92°36'W | 0 | 2 | 2.5M | 0 | Olmsted | ||
| 40.9 | 1965-05-05 | 4 | 43°25'N / 92°05'W | 43°27'N / 92°02'W | 2.30 Miles | 200 Yards | 0 | 0 | 25K | 0 | Winneshiek |
| 42.6 | 1960-06-28 | 2 | 44°34'N / 91°35'W | 44°32'N / 91°20'W | 12.20 Miles | 67 Yards | 0 | 0 | 25K | 0 | Buffalo |
| 43.0 | 1998-05-15 | 3 | 44°36'N / 91°50'W | 44°40'N / 91°50'W | 5.00 Miles | 66 Yards | 0 | 6 | 100K | 0 | Pepin |
| Brief Description: Tornado touched down in northern Buffalo County, and continued on ground for 9 miles into eastern Pepin County. Two homes were destroyed in Pepin County. House collapse injured 6 family members. Trailer home also damaged. Tornado rated F3 for a brief time east of Durand, however most of its damage track rated F1. | |||||||||||
| 43.8 | 1965-05-05 | 4 | 43°23'N / 92°09'W | 43°25'N / 92°05'W | 3.30 Miles | 200 Yards | 0 | 0 | 25K | 0 | Howard |
| 44.3 | 1971-07-18 | 2 | 44°07'N / 91°00'W | 1.00 Mile | 100 Yards | 0 | 0 | 250K | 0 | Monroe | |
| 44.3 | 1965-09-09 | 2 | 43°23'N / 92°04'W | 1.00 Mile | 50 Yards | 0 | 0 | 25K | 0 | Howard | |
| 45.0 | 1953-05-10 | 4 | 43°27'N / 92°24'W | 43°30'N / 92°23'W | 1.90 Miles | 33 Yards | 0 | 2 | 0K | 0 | Howard |
| 45.2 | 1980-06-05 | 2 | 43°45'N / 91°04'W | 43°43'N / 91°03'W | 0 | 0 | 250K | 0 | La Crosse | ||
| 45.6 | 1951-09-12 | 3 | 44°38'N / 92°05'W | 44°41'N / 92°02'W | 3.30 Miles | 200 Yards | 0 | 0 | 250K | 0 | Pepin |
| 47.7 | 2004-06-11 | 3 | 43°30'N / 92°33'W | 43°33'N / 92°34'W | 4.00 Miles | 150 Yards | 0 | 0 | 3.0M | 20K | Mower |
| Brief Description: A tornado crossed the Minnesota-Iowa state line just southwest of Le Roy (Mower County) causing considerable damage. One home right on the state line was completely destroyed, but there were no injuries or deaths. The tornado was approximately 150 yards wide at times and apparently reached F3 damage intensity right on the state line around 6:05 p.m. The tornado then started to weaken, but did heavy damage to a grain company (Koch Industries)(F2 damage) about 2 miles west of Le Roy and continued north, crossing Highway 56 just before 6:10 p.m. The tornado lifted approximately 4 miles northwest of Le Roy in open fields. There were also brief tornado touch downs (all rated F0) near Dexter (Mower County) and Le Roy, as well as areas along the Mower-Fillmore County line west of Spring Valley (Fillmore County). | |||||||||||
| 49.3 | 1965-05-05 | 4 | 43°23'N / 92°33'W | 43°23'N / 92°09'W | 19.90 Miles | 200 Yards | 0 | 5 | 25K | 0 | Howard |
* 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.