Montana, 1999Tornado and Hail in Montana, June 20, 1999
June 20, 1999 · NWS BYZ · 3 events in 1 county or zone
1 tornado, 1 funnel cloud, 1 hail, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 3
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.
Event by event
1 tornado, 1 funnel cloud, 1 hail. Local standard time, as filed.
Tornado, Fallon
- When
- June 20, 7:00 PM MST to 7:15 PM MST
- Where
- Fallon County, Baker to 12 mi N of Baker
- Rating
- F2
- Path length
- 5 mi
- Path width
- 300 yd
- Reported by
- STORM CHASER
- Coordinates
- 46.530, -104.180
A large tornado which touched down near Ollie Road, about 3 miles east of Montana Highway 7. The tornado travelled north to County Road 616 then northwest over Beaver Creek before lifting at the Fallon/Wibaux County border. The tornado destroyed a well built cattle shed, lifted up, twisted and moved a large irrigation pipe about 100 yards and sucked the water out of a section of Beaver Creek.
Funnel Cloud, Fallon
- When
- June 20, 7:10 PM MST to 7:45 PM MST
- Where
- Fallon County, Countywide
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 46.334, -104.417 (the zone’s center; the record gives no point)
Numerous funnel clouds were reported by the Fallon County Sheriffs Department.
Hail, Fallon
- When
- June 20, 7:25 PM MST to 7:30 PM MST
- Where
- Fallon County, Ollie
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.580, -104.080
Golf ball size hail was reported in Ollie.
- 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.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flooding in Oklahoma, June 20, 19991 death · $250,000 · 5 events
- Flash Flooding in Texas, June 20 to 22, 1999$2.1 million · 11 events
- Flash Flooding and Hail in Montana, June 20, 1999$35,000 · 4 in hail · 15 events
- Lightning Strike in Florida, June 20, 19993 injured · 1 event
- Flash Flooding in Texas, June 20, 1999$25,000 · 2 events
- Damaging Wind in Texas, June 20, 1999$25,000 · 1 event
- Flood in North Dakota, June 20, 1999$20,000 · 1 event
- Flood in Minnesota, June 20, 1999$20,000 · 1 event
- Flash Flood in New Mexico, June 20 to 21, 1999$20,000 · 1 event
- Damaging Wind in Missouri, June 20, 1999$15,000 · 1 event
- Heavy Rain in New Jersey, June 20 to 21, 19994 events
- Flooding in Oklahoma, June 20 to 22, 19993 events
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: 5698336, 5698337, 5698338.