Thunderstorm Wind, Owyhee
- When
- July 29, 1:55 PM MST
- Where
- Owyhee County, Grandview
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.980, -116.100
Hail and Damaging Wind in Idaho, July 29, 1997
During the afternoon of July 29th, a severe thunderstorm formed over Owyhee County and moved to the northeast into Elmore County. The storm produced damaging winds which snapped off three inch diameter tree branches in Grandview.
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
- 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.
What happened
The episode as NWS BOI wrote it up.
During the afternoon of July 29th, a severe thunderstorm formed over Owyhee County and moved to the northeast into Elmore County. The storm produced damaging winds which snapped off three inch diameter tree branches in Grandview. Nickel size hail was reported in southern Elmore County, and 3/4 inch hail and a 52 mph wind gust was reported northwest of Mountain Home , Idaho.
The radar
The Boise radar (KCBX), 58 km away, was scanning. The volume nearest the first event began at 20:57 UTC.
Event by event
2 hail, 1 thunderstorm wind. Local standard time, as filed.
Hail, Elmore
- When
- July 29, 2:15 PM MST
- Where
- Elmore County, 18 mi W of Mountain Home
- Measured
- 0.88 in hail
- Coordinates
- 43.130, -116.050
Hail, Elmore
- When
- July 29, 2:48 PM MST
- Where
- Elmore County, 12 mi NW of Mountain Home
- Measured
- 0.75 in hail
- Coordinates
- 43.250, -115.870
What these are
- 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.
- 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.
The same day elsewhere
- Flash Flooding and Flood in Colorado, July 29 to 30, 1997
- Flash Flood in Missouri, July 29, 1997
- Damaging Wind in Louisiana, July 29, 1997
- Flash Flooding and Lightning Strike in Colorado, July 29 to 30, 1997
- Damaging Winds and Lightning Strike in Texas, July 29 to 30, 1997
- Damaging Wind in Florida, July 29, 1997
- Tornadoes and Flash Flood in Wyoming, July 29 to 30, 1997
- Damaging Wind in Louisiana, July 29, 1997
- Flash Flooding and Hail in Texas, July 29, 1997
- Lightning Strike in New Mexico, July 29, 1997
- Damaging Wind in Texas, July 29, 1997
- Lightning Strike in North Carolina, July 29, 1997
More
Every storm in Idaho in 1997Every state in 1997This day in weather historyWarnings in Idaho, July 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: 5610094, 5610095, 5610096.