Hail, Arapahoe
- When
- September 3, 2:50 PM MST
- Where
- Arapahoe County, Aurora Cherry Creek
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.630, -104.800
Tornadoes and Hail in Colorado, September 3, 1999
Large hail damaged homes and automobiles in Weld, Logan, Sedgwick and Phillips Counties.
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
- 15
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 BOU wrote it up.
Large hail damaged homes and automobiles in Weld, Logan, Sedgwick and Phillips Counties.
The radar
The national radar mosaic for the moment the first event began.
Event by event
13 hail, 2 tornado. Local standard time, as filed.
Hail, Arapahoe
- When
- September 3, 3:04 PM MST
- Where
- Arapahoe County, Aurora Cherry Creek
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.630, -104.800
Hail, Adams
- When
- September 3, 3:58 PM MST
- Where
- Adams County, Bennett to 12 mi N of Bennett
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.900, -104.430
Hail, Denver
- When
- September 3, 4:37 PM MST
- Where
- Denver County, Denver
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.730, -104.930
Hail, Weld
- When
- September 3, 4:40 PM MST to 4:55 PM MST
- Where
- Weld County, Gilcrest
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.280, -104.770
Hail, Weld
- When
- September 3, 4:55 PM MST
- Where
- Weld County, Greeley
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.420, -104.680
Tornado, Morgan
- When
- September 3, 5:55 PM MST
- Where
- Morgan County, 5 mi S of Ft Morgan
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 25 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.180, -103.800
A tornado touched down briefly but did no damage.
Hail, Logan
- When
- September 3, 6:21 PM MST
- Where
- Logan County, 2 mi N of Merino
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.520, -103.350
Hail, Weld
- When
- September 3, 6:25 PM MST
- Where
- Weld County, Greeley
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.420, -104.680
Hail, Logan
- When
- September 3, 7:00 PM MST
- Where
- Logan County, 7 mi ESE of Sterling
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.600, -103.080
Hail, Weld
- When
- September 3, 7:00 PM MST
- Where
- Weld County, 4 mi NW of Greeley
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.450, -104.730
Tornado, Logan
- When
- September 3, 7:25 PM MST
- Where
- Logan County, Fleming to 5 mi W of Fleming
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 25 yd
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.670, -102.930
A tornado touched down briefly but did no damage.
Hail, Logan
- When
- September 3, 7:30 PM MST
- Where
- Logan County, Dailey
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.650, -102.720
Hail, Phillips
- When
- September 3, 7:30 PM MST
- Where
- Phillips County, Haxtun to 5 mi NW of Haxtun
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.670, -102.680
Hail, Sedgwick
- When
- September 3, 8:15 PM MST
- Where
- Sedgwick County, 13 mi S of Ovid
- Measured
- 1.25 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.770, -102.380
What these are
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado in Utah, September 3, 1999
- Hail and Damaging Winds in Nebraska, September 3, 1999
- Hail in Utah, September 3, 1999
- Funnel Clouds and Waterspouts in Texas, September 3 to 28, 1999
- Hail and Damaging Winds in Kansas, September 3, 1999
- Damaging Winds in Kansas, September 3, 1999
- Hail and Damaging Wind in Iowa, September 3, 1999
- Damaging Winds in Nebraska, September 3, 1999
- Flood in South Dakota, September 3, 1999
- Flood in South Dakota, September 3 to 30, 1999
- Damaging Wind in Texas, September 3, 1999
- Damaging Wind in Oklahoma, September 3, 1999
More
Every storm in Colorado in 1999Every state in 1999This day in weather historyThe tornado archive for Colorado, 1999Warnings in Colorado, 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: 5718134, 5718135, 5718130, 5718131, 5718132, 5718136, 5718133, 5718137, 5718138, 5718142, 5718144, 5718139, 5718140, 5718141, 5718143.