Hail and Damaging Winds in Montana, May 31, 1993

Name: Hail and Damaging Winds in Montana, May 31, 1993
Start: 1993-05-31T15:30
End: 1993-05-31T21:00
Location: Montana

May 31, 1993 · 7 events in 4 counties and zones

5 thunderstorm wind, 2 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 7 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

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The toll

Deaths: 0
Injuries: 0
Property damage: $1.0 million
Crop damage: None recorded
Events: 7

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.

Event by event

5 thunderstorm wind, 2 hail. Local standard time, as filed.

Hail, Sanders

When: May 31, 3:30 PM MST
Where: Sanders County, Thompson Falls
Measured: 1.75 in hail
Property damage: $5,000
Coordinates: 47.675, -115.133 (the zone’s center; the record gives no point)

Thunderstorm Wind, Sanders

When: May 31, 4:10 PM MST
Where: Sanders County
Property damage: $5,000
Coordinates: 47.675, -115.133 (the zone’s center; the record gives no point)

Thunderstorm Wind, Missoula

When: May 31, 4:40 PM MST
Where: Missoula County, Missoula
Measured: 56 kt (64 mph)
Property damage: $5,000
Coordinates: 47.037, -113.924 (the zone’s center; the record gives no point)

Hail, Missoula

When: May 31, 5:50 PM MST
Where: Missoula County
Measured: 0.75 in hail
Coordinates: 47.037, -113.924 (the zone’s center; the record gives no point)

Thunderstorm Wind, Lake

When: May 31, 7:30 PM MST
Where: Lake County, Swan Lake
Property damage: $500,000
Coordinates: 47.646, -114.089 (the zone’s center; the record gives no point)

Many trees were blown down with the loss of power and telephone.

Thunderstorm Wind, Flathead

When: May 31, 7:45 PM MST
Where: Flathead County, Kalispell
Measured: 52 kt (60 mph)
Property damage: $5,000
Coordinates: 48.295, -114.050 (the zone’s center; the record gives no point)

Trees and power lines were knocked down. Several funnel clouds were observed over Flathead Lake.

Thunderstorm Wind, Flathead

When: May 31, 9:00 PM MST
Where: Flathead County, Nr Kalispell
Measured: 61 kt (70 mph)
Property damage: $500,000
Coordinates: 48.295, -114.050 (the zone’s center; the record gives no point)

Trees and power lines were knocked down. Several funnel clouds were observed over Flathead Lake.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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

Every storm in Montana in 1993 Every state in 1993 This day in weather history Warnings in Montana, May 1993

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: 10334478, 10334479, 10335096, 10335097, 10334981, 10334849, 10334850.