Winona County Natural Disasters and Weather Extremes
The chance of earthquake damage in Winona County is about the same as Minnesota average and is much lower than the national average. The risk of tornado damage in Winona County is lower than Minnesota average and is lower than the national average.
Earthquake Index, #55
| Winona County | 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
| Winona County | 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, #52
| Winona County | 111.93 |
| 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 11,884 other weather extremes events within 50 miles of Winona 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: | 98 | Cold: | 162 | Dense Fog: | 77 | Drought: | 45 |
| Dust Storm: | 0 | Flood: | 983 | Hail: | 4,279 | Heat: | 64 | Heavy Snow: | 192 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 49 | Landslide: | 0 | Strong Wind: | 186 |
| Thunderstorm Winds: | 4,682 | Tropical Storm: | 0 | Wildfire: | 7 | Winter Storm: | 411 | Winter Weather: | 87 |
| Other: | 562 | ||||||||
Volcanos Nearby
No volcano is found in or near Winona County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Winona County.
No historical earthquake events found in or near Winona County.
Historical Tornado Events
A total of 42 historical tornado events that had recorded magnitude of 2 or above found in or near Winona County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 4.9 | 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. | |||||||||||
| 5.4 | 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 |
| 12.4 | 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 |
| 13.8 | 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 |
| 17.3 | 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 |
| 17.5 | 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 |
| 17.8 | 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 |
| 19.9 | 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 |
| 20.6 | 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 |
| 25.2 | 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 |
| 25.6 | 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 |
| 26.5 | 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 |
| 27.4 | 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 |
| 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 |
| 30.6 | 1961-05-14 | 2 | 43°48'N / 91°13'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | La Crosse | |
| 30.7 | 1957-04-19 | 2 | 43°58'N / 91°10'W | 43°58'N / 91°09'W | 0 | 0 | 0K | 0 | La Crosse | ||
| 31.1 | 1979-07-03 | 2 | 43°57'N / 92°24'W | 0.50 Mile | 100 Yards | 0 | 0 | 2.5M | 0 | Olmsted | |
| 31.1 | 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 |
| 31.2 | 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 |
| 32.7 | 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 |
| 33.5 | 1962-09-16 | 4 | 43°58'N / 92°27'W | 0.50 Mile | 33 Yards | 0 | 34 | 250K | 0 | Olmsted | |
| 33.6 | 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 |
| 34.3 | 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 |
| 35.8 | 1962-05-22 | 2 | 43°53'N / 92°29'W | 0.50 Mile | 33 Yards | 0 | 0 | 25K | 0 | Olmsted | |
| 35.9 | 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 |
| 39.6 | 1971-07-18 | 2 | 44°07'N / 91°00'W | 1.00 Mile | 100 Yards | 0 | 0 | 250K | 0 | Monroe | |
| 39.7 | 1980-06-05 | 2 | 43°45'N / 91°04'W | 43°43'N / 91°03'W | 0 | 0 | 250K | 0 | La Crosse | ||
| 40.4 | 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 |
| 42.0 | 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 |
| 42.2 | 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 |
| 43.6 | 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 |
| 43.8 | 1965-09-09 | 2 | 43°23'N / 92°04'W | 1.00 Mile | 50 Yards | 0 | 0 | 25K | 0 | Howard | |
| 44.7 | 1981-04-29 | 2 | 44°12'N / 92°39'W | 44°12'N / 92°36'W | 0 | 2 | 2.5M | 0 | Olmsted | ||
| 45.0 | 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. | |||||||||||
| 46.6 | 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 |
| 46.8 | 1964-05-04 | 2 | 44°07'N / 90°57'W | 44°12'N / 90°47'W | 9.70 Miles | 200 Yards | 0 | 2 | 250K | 0 | Jackson |
| 48.0 | 1964-05-23 | 2 | 44°27'N / 91°20'W | 44°32'N / 90°54'W | 21.90 Miles | 100 Yards | 0 | 0 | 250K | 0 | Trempealeau |
| 48.7 | 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 |
| 48.9 | 1980-06-05 | 3 | 43°40'N / 91°13'W | 43°27'N / 90°46'W | 26.90 Miles | 33 Yards | 0 | 1 | 2.5M | 0 | Vernon |
| 49.2 | 1954-06-18 | 2 | 44°23'N / 91°02'W | 44°20'N / 90°50'W | 10.20 Miles | 900 Yards | 0 | 0 | 250K | 0 | Jackson |
| 49.9 | 1959-05-04 | 2 | 44°19'N / 90°53'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Jackson | |
| 50.0 | 1968-05-15 | 2 | 43°20'N / 92°11'W | 43°17'N / 92°06'W | 4.70 Miles | 250 Yards | 0 | 0 | 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.