Thunderstorm Wind, Box Elder
- When
- August 30, 2:00 PM MST to 3:00 PM MST
- Where
- Box Elder County, Central Portion
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 41.521, -113.082 (the zone’s center; the record gives no point)
Damaging Winds in Utah, August 30, 1999
Thunderstorms produced dry microburst winds over portions of Northwest Utah. Gunnison Island on the Great Salt Lake recorded a gust to 77 mph (67 kts), while Muskrat Springs had a gust to 67 mph (58 kts).
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 SLC wrote it up.
Thunderstorms produced dry microburst winds over portions of Northwest Utah. Gunnison Island on the Great Salt Lake recorded a gust to 77 mph (67 kts), while Muskrat Springs had a gust to 67 mph (58 kts).
The radar
The Salt Lake City radar (KMTX), 60 km away, was scanning. The volume nearest the first event began at 21:01 UTC.
Event by event
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Tooele
- When
- August 30, 2:30 PM MST to 4:00 PM MST
- Where
- Tooele County, Central Portion
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 40.449, -113.131 (the zone’s center; the record gives no point)
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
- Lightning Strike in Florida, August 30, 1999
- Hurricane in North Carolina, August 30, 1999
- Damaging Wind in Wyoming, August 30, 1999
- Damaging Wind in Utah, August 30, 1999
- Hurricane in North Carolina, August 30 to 31, 1999
- Lightning Strike in Oregon, August 30, 1999
- Coastal Flood in New Jersey, August 30 to 31, 1999
- Flash Flooding in North Carolina, August 30, 1999
- Hurricane in South Carolina, August 30, 1999
- Flash Flooding in North Carolina, August 30, 1999
- Cold in Oregon, August 30 to 31, 1999
- Cold in California, August 30 to 31, 1999
More
Every storm in Utah in 1999Every state in 1999This day in weather historyWarnings in Utah, August 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: 5707414, 5707415.