Hail, Fillmore
- When
- August 23, 5:30 PM CST
- Where
- Fillmore County, 5 mi N of Harmony
- Measured
- 0.88 in hail
- Crop damage
- $12,000
- Coordinates
- 43.620, -92.020
Tornado and Hail in Minnesota, August 23, 1997
Dime to golf ball size hail was reported by storm spotters, while a brief tornado touchdown heavily damaged a farm house. 2 x 4 boards were blown through a bedroom wall and glass debris was strewn throughout the house.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $235,000
- Crop damage
- $52,000
- Events
- 9
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What happened
The episode as NWS ARX wrote it up.
Dime to golf ball size hail was reported by storm spotters, while a brief tornado touchdown heavily damaged a farm house. 2 x 4 boards were blown through a bedroom wall and glass debris was strewn throughout the house.
The radar
The La Crosse radar (KARX), 70 km away, was scanning. The volume nearest the first event began at 23:27 UTC.
Event by event
5 hail, 3 thunderstorm wind, 1 tornado. Local standard time, as filed.
Hail, Fillmore
- When
- August 23, 5:37 PM CST
- Where
- Fillmore County, 3 mi W of Spring Valley
- Measured
- 0.88 in hail
- Crop damage
- $15,000
- Coordinates
- 43.680, -92.470
Thunderstorm Wind, Winona
- When
- August 23, 6:30 PM CST
- Where
- Winona County, Goodview
- Measured
- 55 kt (63 mph)
- Property damage
- $40,000
- Coordinates
- 44.070, -91.700
Hail, Winona
- When
- August 23, 6:35 PM CST
- Where
- Winona County, Winona
- Measured
- 0.75 in hail
- Property damage
- $25,000
- Coordinates
- 44.050, -91.650
Hail, Winona
- When
- August 23, 6:36 PM CST
- Where
- Winona County, Winona
- Measured
- 1 in hail
- Property damage
- $30,000
- Coordinates
- 44.050, -91.650
Hail, Winona
- When
- August 23, 7:30 PM CST
- Where
- Winona County, Winona
- Measured
- 1.75 in hail
- Property damage
- $30,000
- Coordinates
- 44.050, -91.650
Thunderstorm Wind, Winona
- When
- August 23, 8:00 PM CST
- Where
- Winona County, Winona
- Measured
- 55 kt (63 mph)
- Property damage
- $15,000
- Coordinates
- 44.050, -91.650
Tornado, Houston
- When
- August 23, 8:06 PM CST to 8:10 PM CST
- Where
- Houston County, Caledonia to 3 mi NW of Caledonia
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 80 yd
- Property damage
- $80,000
- Crop damage
- $25,000
- Coordinates
- 43.670, -91.550
Thunderstorm Wind, Houston
- When
- August 23, 8:15 PM CST
- Where
- Houston County, Caledonia
- Measured
- 52 kt (60 mph)
- Property damage
- $15,000
- Coordinates
- 43.630, -91.500
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Iowa, August 23, 1997
- Hail and Damaging Wind in Wisconsin, August 23, 1997
- Flash Flooding in Wisconsin, August 23, 1997
- Damaging Wind in Texas, August 23, 1997
- Damaging Wind in Iowa, August 23, 1997
- Flash Flood in Minnesota, August 23, 1997
- Lightning Strike in New Mexico, August 23, 1997
- Damaging Wind and Lightning Strike in Florida, August 23, 1997
- Hail in Wisconsin, August 23, 1997
- Hail in Minnesota, August 23, 1997
- Hail and Damaging Wind in Minnesota, August 23, 1997
- High Wind in Idaho, August 23, 1997
More
Every storm in Minnesota in 1997Every state in 1997This day in weather historyThe tornado archive for Minnesota, 1997Warnings in Minnesota, August 1997
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5610012, 5610013, 5610020, 5610014, 5610015, 5610016, 5610017, 5610018, 5610019.