Hail, Weld
- When
- July 19, 12:56 PM MST
- Where
- Weld County, 3 mi SE of Greeley
- Measured
- 0.75 in hail
- Coordinates
- 40.380, -104.650
Flash Flooding and Hail in Colorado, July 19, 1997
2 hail, 2 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 2 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
- None recorded
- Crop damage
- None recorded
- Events
- 4
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 Denver radar (KFTG), 67 km away, was scanning. The volume nearest the first event began at 19:53 UTC.
Event by event
2 hail, 2 flash flood. Local standard time, as filed.
Flash Flood, Morgan
- When
- July 19, 1:45 PM MST to 3:30 PM MST
- Where
- Morgan County, 12 mi N of Weldona
- Coordinates
- 40.263, -103.810 (the zone’s center; the record gives no point)
Heavy rainfall from thunderstorms in the area resulted in flooding and flash flooding problems over portions of Morgan County. Up to 4 feet of water reportedly covered the roadway near County Roads 14 and KK.
Hail, Denver
- When
- July 19, 3:45 PM MST
- Where
- Denver County, Denver
- Measured
- 1.25 in hail
- Coordinates
- 39.730, -104.930
Flash Flood, Denver
- When
- July 19, 3:45 PM MST to 5:45 PM MST
- Where
- Denver County, Denver
- Coordinates
- 39.762, -104.876 (the zone’s center; the record gives no point)
Torrential rain and damaging hail pummelled eastern portions of the Denver area. The Denver Weather Service Forecast Office, near the former Stapleton Airport complex, recorded 3.83 inches of rainfall in one hour from this nearly stationary storm. Numerous cars were stalled along I-70 and several homes flooded in East Denver. The roof of a building also collapsed.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Texas, July 19 to 30, 1997
- Flash Flooding in Oklahoma, July 19, 1997
- Hail in Nebraska, July 19, 1997
- Flash Flood and Flooding in Minnesota, July 19, 1997
- Wildfire in New Jersey, July 19 to 20, 1997
- Damaging Wind in Missouri, July 19, 1997
- Tornado and Damaging Winds in Illinois, July 19, 1997
- Damaging Wind in Illinois, July 19, 1997
- Damaging Winds and Lightning Strike in Iowa, July 19, 1997
- Hail and Damaging Wind in South Dakota, July 19, 1997
- Damaging Winds in North Carolina, July 19, 1997
- Hail and Damaging Wind in Colorado, July 19, 1997
More
Every storm in Colorado in 1997Every state in 1997This day in weather historyWarnings in Colorado, July 1997
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: 5607184, 5607263, 5607264, 5607265.