Montana, 2011

Extreme Cold in Montana, February 25 to 26, 2011

February 25 to 26, 2011 · NWS GGW · 4 events in 4 counties and zones

An arctic airmass was in control over the area while winds worked in combination to bring dangerous wind chills to the area.

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
None recorded
Crop damage
None recorded
Events
4

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 GGW wrote it up.

An arctic airmass was in control over the area while winds worked in combination to bring dangerous wind chills to the area.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

4 extreme cold/wind chill. Local standard time, as filed.

Extreme Cold/Wind Chill, Sheridan

When
February 25, 10:00 PM MST to February 26, 10:00 AM MST
Where
Sheridan forecast zone
Reported by
Mesonet
Coordinates
48.721, -104.505 (the zone’s center; the record gives no point)

Wind chills of -40F were common at many reporting stations across the area.

Extreme Cold/Wind Chill, Daniels

When
February 25, 10:00 PM MST to February 26, 10:00 AM MST
Where
Daniels forecast zone
Reported by
Mesonet
Coordinates
48.784, -105.549 (the zone’s center; the record gives no point)

Wind chills of -40F were reported at a couple of stations across the area.

Extreme Cold/Wind Chill, Central and Southern Valley

When
February 25, 10:00 PM MST to February 26, 10:00 AM MST
Where
Central and Southern Valley forecast zone
Reported by
ASOS
Coordinates
48.365, -106.667 (the zone’s center; the record gives no point)

Wind chills of -40F were common at many reporting stations across the area.

Extreme Cold/Wind Chill, Western Roosevelt

When
February 25, 10:00 PM MST to February 26, 10:00 AM MST
Where
Western Roosevelt forecast zone
Reported by
Mesonet
Coordinates
48.295, -105.016 (the zone’s center; the record gives no point)

Wind chills of -40F were reported at a DOT sensor in the area.

What these are

Extreme Cold/Wind Chill
Temperatures or wind chills at or below the local warning criteria, or cold that caused deaths.

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

The same day elsewhere

More

Every storm in Montana in 2011Every state in 2011This day in weather historyWarnings in Montana, February 2011

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 2026-09-30. Each event’s entry at NCEI: 276915, 276916, 276917, 276918.