Montana, 2005

Winter Storm in Montana, April 18 to 19, 2005

April 18 to 19, 2005 · NWS TFX · 8 events in 8 counties and zones

A powerful spring storm brought heavy snow to a wide area of Southwest Montana from the 18th through the afternoon of the 19th. Reported snow fall amounts include: 18 inches at Lewistown 11SSE; 16 inches at Lewistown 22S; 12 inches at Clancy 3W, 12 inches at Crstal Lake, 12 inches at Rogers Pass; 11 inches at Bozeman; 10 inches at Lewistown 10S, 10 inches at Half Moon Pass; 9 inches at Big Sky…

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
8

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 TFX wrote it up.

A powerful spring storm brought heavy snow to a wide area of Southwest Montana from the 18th through the afternoon of the 19th. Reported snow fall amounts include: 18 inches at Lewistown 11SSE; 16 inches at Lewistown 22S; 12 inches at Clancy 3W, 12 inches at Crstal Lake, 12 inches at Rogers Pass; 11 inches at Bozeman; 10 inches at Lewistown 10S, 10 inches at Half Moon Pass; 9 inches at Big Sky 2WNW, 9 inches at Lima, 9 inches at Montana State University (Bozeman) and 4 inches at Lewistown, Utica 11SW and Hobson 16SW.

Event by event

8 winter storm. Local standard time, as filed.

Winter Storm, Fergus

When
April 18, 2:00 PM MST
Where
Fergus forecast zone
Reported by
GENERAL PUBLIC

Winter Storm, Cascade

When
April 18, 3:00 PM MST
Where
Cascade forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Madison

When
April 18, 3:30 PM MST
Where
Madison forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Gallatin

When
April 18, 4:00 PM MST
Where
Gallatin forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Judith Basin

When
April 18, 4:30 PM MST
Where
Judith Basin forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Jefferson

When
April 19, 5:00 AM MST
Where
Jefferson forecast zone
Reported by
TRAINED SPOTTER

Winter Storm, Broadwater

When
April 19, 5:00 AM MST
Where
Broadwater forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

Winter Storm, Meagher

When
April 19, 5:00 AM MST
Where
Meagher forecast zone
Reported by
AWOS,ASOS,MESONET,ETC

What these are

Winter Storm
A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Montana in 2005Every state in 2005This day in weather historyWarnings in Montana, April 2005

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: 5443024, 5443022, 5443025, 5443026, 5443023, 5443027, 5443028, 5443100.