Flash Flood, Fallon
- When
- August 20, 3:00 PM MST to 10:00 PM MST
- Where
- Fallon County, Countywide
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.334, -104.417 (the zone’s center; the record gives no point)
Flash Flooding in Montana, August 20, 1998
Slow moving thunderstorms produced up to five inches of rainfall over Fallon and Carter Counties. Both Russell Creek and Box Elder Creek were running at or near bankfull.
Where it happened
Every event with a place to put it; 2 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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 BYZ wrote it up.
Slow moving thunderstorms produced up to five inches of rainfall over Fallon and Carter Counties. Both Russell Creek and Box Elder Creek were running at or near bankfull. Highway 12 was reported closed because of flooding between Baker and Plevna, and water was reported over the road 10 miles Southeast of Ekalaka.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 flash flood. Local standard time, as filed.
Flash Flood, Carter
- When
- August 20, 3:00 PM MST to 10:00 PM MST
- Where
- Carter County, Countywide
- Reported by
- TRAINED SPOTTER
- Coordinates
- 45.517, -104.536 (the zone’s center; the record gives no point)
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado in Utah, August 20, 1998
- Damaging Winds in Nebraska, August 20, 1998
- Flash Flood and Flooding in Iowa, August 20, 1998
- Damaging Winds in Texas, August 20, 1998
- Lightning Strike in Oregon, August 20, 1998
- Damaging Winds in Texas, August 20, 1998
- Damaging Wind in Florida, August 20, 1998
- Damaging Wind in Florida, August 20, 1998
- Flash Flooding in South Carolina, August 20, 1998
- Hail in Montana, August 20, 1998
- Hail in Kansas, August 20, 1998
- Flash Flood and Flood in Illinois, August 20, 1998
More
Every storm in Montana in 1998Every state in 1998This day in weather historyWarnings in Montana, August 1998
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: 5662499, 5662500.