Utah, 1999

Tornado in Utah, August 11, 1999

August 11, 1999 · NWS SLC · 1 event in 1 county or zone

1 tornado, 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
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  • Other

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The toll

Deaths
1
Injuries
80
Property damage
$170 million
Crop damage
$500,000
Events
1

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 Salt Lake City radar (KMTX), 77 km away, was scanning. The volume nearest the first event began at 18:41 UTC.

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Event by event

1 tornado. Local standard time, as filed.

Tornado, Salt Lake

When
August 11, 11:41 AM MST to 11:55 AM MST
Where
Salt Lake County, Salt Lake City
Rating
F2
Path length
4.3 mi
Path width
150 yd
Deaths
1 direct, 0 indirect
Injuries
80 direct, 0 indirect
Property damage
$170 million
Crop damage
$500,000
Reported by
GENERAL PUBLIC
Coordinates
40.730, -111.870

Around lunch time, a tornado touched down in the southwest portions of Salt Lake City. The tornado intensified to an F2 on the Fujita scale, and moved northeast through the metropolitan area of Salt Lake City. It caused widespread damage at the Delta Center, then ripped across an outdoor retailers convention tent, where the lone fatality occurred along with many of the injuries. After blowing out many windows in the Wyndam Hotel, the tornado continued its northeast track, knocking down scaffolding and shearing off a crane at the LDS Assembly Hall construction site. Next it skirted the Capitol Building, ripping out several large trees there and in historic Memory Grove. It then moved into the residential area known as The Avenues, damaging hundreds of trees and ripping the roofs off of several homes, before finally lifting back into the clouds. All told, there was 1 fatality, 80 injured, 300 buildings and homes sustained damage, with 34 homes deemed uninhabitable. At least 500 trees were totally destroyed, with 300 more damaged. Many vehicles were damaged or totalled as well.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Tornado, Salt Lake1999-08-1138MaleOutside/Open AreasDirect

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Utah in 1999Every state in 1999This day in weather historyThe tornado archive for Utah, 1999Warnings 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: 5703912.