Funnel Cloud, Millard
- When
- September 10, 12:29 PM MST
- Where
- Millard County, 10 mi NW of Delta
- Reported by
- AIRPLANE PILOT
- Coordinates
- 39.074, -113.100 (the zone’s center; the record gives no point)
Flash Flood in Utah, September 10, 1998
A funnel cloud was reported by a pilot (pirep) just northwest of Delta. Heavy thunderstorm rains caused flash flooding in eastern Washington county.
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
- $20,000
- Crop damage
- $2,000
- Events
- 2
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.
A funnel cloud was reported by a pilot (pirep) just northwest of Delta. Heavy thunderstorm rains caused flash flooding in eastern Washington county. Several roads were closed due to debris and flood waters. 1.59" of rain fell at the Zion National Park Headquarters that afternoon.
The radar
The Cedar City radar (KICX), 166 km away, was scanning. The volume nearest the first event began at 19:30 UTC.
Event by event
1 funnel cloud, 1 flash flood. Local standard time, as filed.
Flash Flood, Washington
- When
- September 10, 2:00 PM MST to 4:00 PM MST
- Where
- Washington County, East Portion
- Property damage
- $20,000
- Crop damage
- $2,000
- Reported by
- PARK/FOREST SERVICE
- Coordinates
- 37.280, -113.505 (the zone’s center; the record gives no point)
What these are
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
- 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
- Tornado and Tropical Storm in Louisiana, September 10 to 12, 1998
- Tornado and Flash Flooding in Texas, September 10 to 11, 1998
- Flash Flooding in Texas, September 10 to 11, 1998
- Lightning Strike in Oklahoma, September 10, 1998
- Cold in Alabama, September 10, 1998
- Funnel Cloud in Florida, September 10, 1998
- Funnel Cloud in Idaho, September 10, 1998
- Waterspout in Florida, September 10, 1998
- Tornado in Texas, September 10, 1998
- Flash Flood in Arizona, September 10, 1998
More
Every storm in Utah in 1998Every state in 1998This day in weather historyWarnings in Utah, September 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: 5663919, 5663920.