Hail, San Juan
- When
- September 16, 5:10 PM MST to 5:15 PM MST
- Where
- San Juan County, 33 mi NW of Monticello
- Measured
- 0.75 in hail
- Reported by
- PARK/FOREST SERVICE
- Coordinates
- 38.200, -109.780
Hail in Utah, September 16, 1999
Nickel-sized hail pummeled the Needles area of Canyonlands National Park.
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
- None recorded
- Crop damage
- None recorded
- 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.
What happened
The episode as NWS GJT wrote it up.
Nickel-sized hail pummeled the Needles area of Canyonlands National Park.
The radar
The Grand Junction radar (KGJX), 166 km away, was scanning. The volume nearest the first event began at 00:08 UTC.
Event by event
1 hail. Local standard time, as filed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hurricane and Tropical Storm in New Jersey, September 16 to 23, 1999
- Flash Flooding and Coastal Flood in Pennsylvania, September 16 to 17, 1999
- Flash Flooding in New Jersey, September 16 to 17, 1999
- Hurricane and Flash Flooding in Delaware, September 16 to 17, 1999
- Flash Flooding and High Wind in New York, September 16 to 17, 1999
- Flash Flooding in New York, September 16 to 18, 1999
- Flash Flooding in North Carolina, September 16, 1999
- Tropical Storm and Storm Surge in Maryland, September 16, 1999
- Flash Flooding and Heavy Rain in Connecticut, September 16 to 18, 1999
- Tropical Storm and Flash Flooding in Virginia, September 16, 1999
- High Wind in Vermont, September 16 to 17, 1999
- Flash Flooding and High Wind in Maryland, September 16 to 18, 1999
More
Every storm in Utah in 1999Every state in 1999This day in weather historyWarnings in Utah, September 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: 5716744.