Heavy Rain, Davis
- When
- May 21, 3:00 AM MST to 8:00 AM MST
- Where
- Davis County, Kaysville
- Property damage
- $40,000
- Crop damage
- $4,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.991, -112.111 (the zone’s center; the record gives no point)
Tornadoes and Hail in Utah, May 21, 1998
Severe thunderstorms ripped through the Wasatch Front on this date. Heavy rains combined with the spring runoff and caused flooding in Davis county during the morning hours.
Where it happened
Every event with a place to put it; 1 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
- $84,000
- Crop damage
- $11,000
- Events
- 6
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.
Severe thunderstorms ripped through the Wasatch Front on this date. Heavy rains combined with the spring runoff and caused flooding in Davis county during the morning hours. Several homes experienced basement and yard flooding from the 1-1.5" of rain that fell in the area. In the afternoon severe thunderstorms developed. Hail, microburst winds and 2 weak tornadoes caused damage.
The radar
The Salt Lake City radar (KMTX), 41 km away, was scanning. The volume nearest the first event began at 20:02 UTC.
Event by event
2 tornado, 2 thunderstorm wind, 1 heavy rain, 1 hail. Local standard time, as filed.
Hail, Summit
- When
- May 21, 1:00 PM MST to 1:05 PM MST
- Where
- Summit County, Coalville
- Measured
- 0.75 in hail
- Crop damage
- $200
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.920, -111.380
Tornado, Weber
- When
- May 21, 2:30 PM MST
- Where
- Weber County, Roy
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 10 yd
- Property damage
- $18,000
- Crop damage
- $2,000
- Reported by
- GENERAL PUBLIC
- Coordinates
- 41.170, -112.020
Tornado, Davis
- When
- May 21, 2:30 PM MST
- Where
- Davis County, West Pt
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 20 yd
- Property damage
- $22,000
- Crop damage
- $2,000
- Reported by
- GENERAL PUBLIC
- Coordinates
- 41.120, -112.080
Thunderstorm Wind, Cache
- When
- May 21, 2:50 PM MST
- Where
- Cache County, Logan
- Measured
- 53 kt (61 mph)
- Property damage
- $3,000
- Crop damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.730, -111.830
Thunderstorm Wind, Utah
- When
- May 21, 3:00 PM MST
- Where
- Utah County, Provo
- Measured
- 55 kt (63 mph)
- Property damage
- $1,000
- Crop damage
- $1,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.250, -111.670
What these are
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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
- Tornadoes and Hail in Nebraska, May 21, 1998
- Tornado and Hail in Iowa, May 21, 1998
- Hail and Heavy Rain in Nebraska, May 21, 1998
- Tornado and Hail in Nebraska, May 21, 1998
- Tornado in Nebraska, May 21, 1998
- Flash Flood and Hail in Tennessee, May 21, 1998
- Hail and Damaging Winds in Tennessee, May 21, 1998
- Tornado in Nebraska, May 21, 1998
- Tornado in Missouri, May 21, 1998
- Damaging Wind in Illinois, May 21, 1998
- Damaging Wind in Nebraska, May 21, 1998
- Hail in Colorado, May 21, 1998
More
Every storm in Utah in 1998Every state in 1998This day in weather historyThe tornado archive for Utah, 1998Warnings in Utah, May 1998
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: 5665270, 5665267, 5665271, 5665272, 5665268, 5665269.