Hail, Clay
- When
- June 18, 1:50 AM CST
- Where
- Clay County, Moorhead
- Measured
- 0.75 in hail
- Coordinates
- 46.880, -96.750
Flash Flood and Hail in Minnesota, June 18, 1998
2 hail, 1 lightning, 1 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
- $175,000
- 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 Fargo/Grand Forks radar (KMVX), 84 km away, was scanning. The volume nearest the first event began at 07:48 UTC.
Event by event
2 hail, 1 lightning, 1 flash flood. Local standard time, as filed.
Lightning, Grant
- When
- June 18, 4:00 AM CST
- Where
- Grant County, 4 mi S of Ashby
- Property damage
- $75,000
- Coordinates
- 45.934, -96.012 (the zone’s center; the record gives no point)
The upper level of a house was lost due to a lightning fire. The downstairs was damaged by water that was used to fight the fire. The family escaped unharmed.
Hail, Grant
- When
- June 18, 3:50 PM CST
- Where
- Grant County, 3 mi NW of Barrett
- Measured
- 0.75 in hail
- Coordinates
- 45.950, -95.930
Flash Flood, Clay
- When
- June 18, 4:00 PM CST to 8:10 PM CST
- Where
- Clay County, Moorhead
- Property damage
- $100,000
- Coordinates
- 46.892, -96.491 (the zone’s center; the record gives no point)
Over 3 inches of rain fell in less than three hours, causing rapid flooding problems in Moorhead.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Lightning
- A lightning strike that killed, injured or caused damage.
- 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
- Tornadoes and Damaging Winds in Wisconsin, June 18, 1998
- Tornado and Flash Flooding in Iowa, June 18, 1998
- Flood and Hail in Wisconsin, June 18, 1998
- Tornadoes and Hail in Illinois, June 18, 1998
- Flooding in Iowa, June 18 to 20, 1998
- Tornadoes and Hail in Iowa, June 18, 1998
- Tornadoes and Hail in Minnesota, June 18, 1998
- Damaging Winds in Iowa, June 18, 1998
- Flash Flood in Maine, June 18, 1998
- Tornado and Flash Flooding in North Dakota, June 18, 1998
- Tornado and Flash Flooding in Oklahoma, June 18 to 19, 1998
- Flood in Nebraska, June 18, 1998
More
Every storm in Minnesota in 1998Every state in 1998This day in weather historyWarnings in Minnesota, June 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: 5649578, 5649581, 5649579, 5649580.