Montana, 2020

Winter Storm in Montana, January 15, 2020

January 15, 2020 · NWS TFX · 1 event in 1 county or zone

A shortwave trough along with an associated Arctic frontal boundary brought periods of snow and cold temperatures to much of the region. Upslope winds along the Rocky Mountain Front enhanced the snowfall, bringing Winter Storm conditions to this area.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 shortwave trough along with an associated Arctic frontal boundary brought periods of snow and cold temperatures to much of the region. Upslope winds along the Rocky Mountain Front enhanced the snowfall, bringing Winter Storm conditions to this area.

Event by event

1 winter storm. Local standard time, as filed.

Winter Storm, North Rocky Mountain Front

When
January 15, 7:31 AM MST
Where
North Rocky Mountain Front forecast zone
Reported by
SNOTEL

SNOTEL at Marias Pass reports 10.6 inches of snow for a 48 hour storm total.

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 2020Every state in 2020This day in weather historyWarnings in Montana, January 2020

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: 872770.