Montana, 1994

Tornado and Hail in Montana, May 17, 1994

May 17, 1994 · 5 events in 4 counties and zones

3 hail, 1 tornado, 1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 4 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
5

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

3 hail, 1 tornado, 1 thunderstorm wind. Local standard time, as filed.

Hail, Valley

When
May 17, 12:00 AM MST
Where
Valley County, Glasgow
Measured
1 in hail
Property damage
$5,000
Coordinates
48.365, -106.667 (the zone’s center; the record gives no point)

Hail, Valley

When
May 17, 12:05 AM MST
Where
Valley County, Richland
Measured
1.75 in hail
Property damage
$500,000
Coordinates
48.365, -106.667 (the zone’s center; the record gives no point)

Hail, Phillips

When
May 17, 9:45 AM MST
Where
Phillips County, Saco
Measured
0.75 in hail
Coordinates
48.259, -107.913 (the zone’s center; the record gives no point)

Tornado, Gallatin

When
May 17, 11:15 AM MST
Where
Gallatin County, Nr Trident
Rating
F0
Path length
0.1 mi
Path width
10 yd
Coordinates
45.950, -111.520

Thunderstorm Wind, Beaverhead

When
May 17, 12:00 PM MST
Where
Beaverhead County, Dillon
Property damage
$500,000
Coordinates
45.133, -112.899 (the zone’s center; the record gives no point)

Strong winds tore the roof off a building downtown. Yellowstone County Billings,19,1100MST,,,0,0,3,0,Lightning A sulfur storage tank was struck and caught fire.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
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

More

Every storm in Montana in 1994Every state in 1994This day in weather historyThe tornado archive for Montana, 1994Warnings in Montana, May 1994

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: 10334606, 10334607, 10332356, 10334864, 10335191.