Hail, Cassia
- When
- August 10, 4:00 PM MST to 4:50 PM MST
- Where
- Cassia County, Almo
- Measured
- 0.75 in hail
- Coordinates
- 42.100, -113.630
Thunderstorm produced dime-size hail and 0.50 inch of rain.
Flash Flood and Hail in Idaho, August 10, 1997
4 hail, 2 heavy rain, 1 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 3 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
- 8
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.
The radar
The Salt Lake City radar (KMTX), 135 km away, was scanning. The volume nearest the first event began at 23:00 UTC.
Event by event
4 hail, 2 heavy rain, 1 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Heavy Rain, Cassia
- When
- August 10, 4:25 PM MST
- Where
- Cassia County, Elba
- Coordinates
- 42.284, -113.600 (the zone’s center; the record gives no point)
Thunderstorm produced 'wall' of rain and pea-size hail.
Hail, Oneida
- When
- August 10, 5:00 PM MST to 5:30 PM MST
- Where
- Oneida County, Juniper
- Measured
- 1 in hail
- Coordinates
- 42.130, -112.980
Dime to Quarter-size hail accummulated 1 to 2 inches in Juniper area. Hail destroyed wheat crop in area, completely stripped leaves from trees, and broke a car windsheild and truck mirror.
Heavy Rain, Oneida
- When
- August 10, 5:00 PM MST
- Where
- Oneida County, Juniper
- Coordinates
- 42.195, -112.540 (the zone’s center; the record gives no point)
1.9 inches of rain measured by storm spotter.
Hail, Oneida
- When
- August 10, 5:00 PM MST to 5:30 PM MST
- Where
- Oneida County, 2 mi S of Juniper
- Measured
- 1.75 in hail
- Coordinates
- 42.100, -112.980
Golfball-size hail.
Hail, Oneida
- When
- August 10, 5:00 PM MST to 5:30 PM MST
- Where
- Oneida County, 1 mi E of Juniper
- Measured
- 1.5 in hail
- Coordinates
- 42.130, -112.970
Quarter to Golfball-size hail.
Thunderstorm Wind, Cassia
- When
- August 10, 5:30 PM MST
- Where
- Cassia County, 5 mi NE of Strevell
- Measured
- 51 kt (59 mph)
- Coordinates
- 42.050, -113.130
Moburg Canyon RAWS gust to 59 mph.
Flash Flood, Oneida
- When
- August 10, 5:30 PM MST to 6:00 PM MST
- Where
- Oneida County, Juniper
- Coordinates
- 42.195, -112.540 (the zone’s center; the record gives no point)
4 to 8 feet of water rushed down normally dry streambeds and channels with Interstate 84 exit 263 underpass flooded. Water also flooded over several bridges, across roads and yards. A Juniper resident commented that this was the worse storm he had seen in 60 years.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- 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.
- 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
- Flash Flooding and Hail in Nevada, August 10, 1997
- Damaging Winds in Texas, August 10, 1997
- Flash Flooding and Damaging Winds in Oklahoma, August 10 to 11, 1997
- Lightning Strike in Colorado, August 10, 1997
- Flash Flood in Utah, August 10, 1997
- Hail in Texas, August 10, 1997
- Damaging Winds in Utah, August 10, 1997
- High Wind in Alaska, August 10 to 11, 1997
- Flood and Heavy Rain in Idaho, August 10, 1997
- Damaging Winds in Texas, August 10, 1997
- Waterspout in Florida, August 10, 1997
- Flash Flood in Idaho, August 10, 1997
More
Every storm in Idaho in 1997Every state in 1997This day in weather historyWarnings in Idaho, 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: 5618055, 5618056, 5618058, 5618059, 5618155, 5618156, 5618057, 5618154.