Thunderstorm Wind, Griggs
- When
- July 8, 7:35 AM CST
- Where
- Griggs County, Cooperstown
- Property damage
- $5,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 47.450, -98.120
Trees and power lines were downed.
Damaging Winds in North Dakota, July 8, 1999
3 thunderstorm wind, as filed by the National Weather Service.
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
- $10,000
- 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.
The radar
The Fargo/Grand Forks radar (KMVX), 60 km away, was scanning. The volume nearest the first event began at 13:32 UTC.
Event by event
3 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Traill
- When
- July 8, 8:15 AM CST
- Where
- Traill County, Hillsboro
- Property damage
- $5,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 47.400, -97.070
Trees and power lines were downed, knocking out power to 2882 customers.
Thunderstorm Wind, Traill
- When
- July 8, 8:15 AM CST
- Where
- Traill County, 4 mi E of Hillsboro
- Measured
- 87 kt (100 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 47.400, -96.980
An 87 knot wind was reported from a personal weather station. A metal building was destroyed and trees and power lines were downed.
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood in Nevada, July 8, 1999
- Heat in Missouri, July 8 to 9, 1999
- Tornado and Hail in Minnesota, July 8, 1999
- Tornado and Hail in Wisconsin, July 8, 1999
- Flood and Hail in Wisconsin, July 8 to 9, 1999
- Flooding and Damaging Winds in Wisconsin, July 8, 1999
- Damaging Winds in Michigan, July 8 to 9, 1999
- Damaging Winds in Iowa, July 8, 1999
- Damaging Wind in Iowa, July 8, 1999
- Lightning Strike in New Mexico, July 8, 1999
- Flood in California, July 8, 1999
- Hail and Damaging Winds in Minnesota, July 8, 1999
More
Every storm in North Dakota in 1999Every state in 1999This day in weather historyWarnings in North Dakota, July 1999
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: 5708880, 5708881, 5708882.