2 hail, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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 Salt Lake City radar (KMTX), 90 km away, was scanning. The volume nearest the first event began at 18:01 UTC.
2 hail. Local standard time, as filed.
The same thunderstorm cell that later spawned the Salt Lake tornado, dropped 1 1/2 inch hail near the town of Herriman.
After producing the Salt Lake tornado, that same cell dropped 1 1/2 inch hail in Bountiful.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Utah in 1999Every state in 1999This day in weather historyWarnings in Utah, August 1999
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: 5703915, 5703916.