Idaho, 1997Flash Flooding and Hail in Idaho, August 12, 1997
August 12, 1997 · NWS PIH · 4 events in 1 county or zone
2 hail, 2 flash flood, as filed by the National Weather Service.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
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.
Hail, Cassia
- When
- August 12, 3:00 PM MST to 3:15 PM MST
- Where
- Cassia County, Heglar to 3 mi of Idahome
- Measured
- 1 in hail
- Coordinates
- 42.470, -113.220
Dime to Quarter-size hail severly damaged crops. Farmers estimated up to 70 percent wheat damage in Idahome area.
Hail, Cassia
- When
- August 12, 3:15 PM MST to 4:00 PM MST
- Where
- Cassia County, 2 mi N of Heglar
- Measured
- 0.75 in hail
- Coordinates
- 42.500, -113.150
Spotter reported dime-size hail and 0.70 inch of rain.
Flash Flood, Cassia
- When
- August 12, 3:30 PM MST to 4:30 PM MST
- Where
- Cassia County, 2 mi E of Heglar
- Coordinates
- 42.284, -113.600 (the zone’s center; the record gives no point)
6 to 8 feet of water rushed down Heglar Canyon damaging Heglar Canyon Road in several locations. Water flooded over one bridge.
Flash Flood, Cassia
- When
- August 12, 3:30 PM MST to 4:15 PM MST
- Where
- Cassia County, Heglar
- Coordinates
- 42.284, -113.600 (the zone’s center; the record gives no point)
Chapin Road was damaged by 1 to 3 feet of water which flooded down the normally dry stream channel next to the road.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- Hail and Damaging Winds in Utah, August 12, 19971 death · 2 injured · $10,000 · 61 kt wind · 5 events
- Rip Current in Florida, August 12, 19971 death · 1 event
- Heavy Rain in Idaho, August 12, 19971 death · 1 event
- Flood and Hail in Idaho, August 12, 1997$1.0 million · 1.75 in hail · 2 events
- Heavy Rain in Idaho, August 12, 1997$100,000 · 1 event
- Damaging Wind in Idaho, August 12, 1997$70,000 · 51 kt wind · 1 event
- High Wind in New Mexico, August 12, 1997$30,000 · 1 event
- Flash Flood in Alaska, August 12 to 13, 1997$20,000 · 1 event
- Lightning Strike in Pennsylvania, August 12 to 16, 1997$20,000 · 1 event
- Damaging Wind in Ohio, August 12, 19971 injured · $4,000 · 1 event
- Hail and Heavy Rain in Idaho, August 12, 19971.75 in hail · 8 events
- Damaging Winds in Wyoming, August 12, 199772 kt wind · 2 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: 5618172, 5618169, 5618170, 5618171.