Hail, Treasure
- When
- May 21, 6:50 PM MST
- Where
- Treasure County, 1 mi N of Hysham
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.317, -107.233
Windows broken out
Hail and Damaging Winds in Montana, May 21, 2006
3 hail, 2 thunderstorm wind, 1 heavy rain, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 1 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
- 6
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 Billings radar (KBLX), 118 km away, was scanning. The volume nearest the first event began at 01:51 UTC.
Event by event
3 hail, 2 thunderstorm wind, 1 heavy rain. Local standard time, as filed.
Hail, Treasure
- When
- May 21, 7:09 PM MST
- Where
- Treasure County, Hysham
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.300, -107.233
Nickel to quarter size hail covered the ground
Heavy Rain, Treasure
- When
- May 21, 7:10 PM MST
- Where
- Treasure County, Hysham
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.212, -107.272 (the zone’s center; the record gives no point)
Estimates of 1 inch of rain. People pumped water out of their basements. A sewer backed up causing water to flow over the steps of a bank.
Thunderstorm Wind, Treasure
- When
- May 21, 7:10 PM MST
- Where
- Treasure County, Hysham
- Measured
- 70 kt (81 mph) estimated gust
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.300, -107.233
Fallen trees in town
Thunderstorm Wind, Treasure
- When
- May 21, 7:10 PM MST
- Where
- Treasure County, Hysham
- Measured
- 70 kt (81 mph) estimated gust
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 46.300, -107.233
Porch roof blown off
Hail, Treasure
- When
- May 21, 7:23 PM MST
- Where
- Treasure County, Hysham
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.300, -107.233
Hail lasted 20 minutes. Power knocked out.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Strong Wind in Arizona, May 21, 2006
- Tornado in New Hampshire, May 21, 2006
- Hail and Damaging Winds in Massachusetts, May 21, 2006
- Hail and Damaging Winds in Massachusetts, May 21, 2006
- Hail and Damaging Winds in Texas, May 21, 2006
- Hail and Damaging Winds in Kansas, May 21, 2006
- Strong Wind in West Virginia, May 21, 2006
- Hail and Damaging Winds in Connecticut, May 21, 2006
- Hail and Damaging Winds in Connecticut, May 21, 2006
- Strong Wind in Maryland, May 21, 2006
- Damaging Winds in Texas, May 21, 2006
- Hail and Damaging Winds in South Carolina, May 21, 2006
More
Every storm in Montana in 2006Every state in 2006This day in weather historyWarnings in Montana, May 2006
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 2026-10-01. Each event’s entry at NCEI: 5505412, 5505413, 5505468, 5505469, 5505470, 5505471.