Continued cold air from Canada became more entrenched and more widespread, and combined with gusty northwest winds to create dangerous wind chill values for many locations across northeast Montana.

Cold/Wind Chill in NORTHERN VALLEY, MONTANA
From 04-JAN-22 19:44:00 to 06-JAN-22 08:44:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

At the Bluff Creek RAWS site (BLUM8), temperatures in the teens to 30s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the night of the 4th into the morning of the 6th. The peak wind chill of -46 was recorded at 1:44 AM on the 5th.

Cold/Wind Chill in DANIELS, MONTANA
From 04-JAN-22 23:45:00 to 06-JAN-22 19:16:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Daniels County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from late night of the 4th into the night of the 6th. The peak wind chill of -53 was recorded multiple times between 9:32 PM and 10:32 PM at the Navajo MT-5 DOT site (MTRED).

Cold/Wind Chill in WESTERN ROOSEVELT, MONTANA
From 04-JAN-22 21:01:00 to 06-JAN-22 18:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Western Roosevelt County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the night of the 4th into the night of the 6th. The peak wind chill of -51 was recorded at 10:12 PM on the 5th at the McDonald's MT-13 DOT site (MTMCD).

Cold/Wind Chill in EASTERN ROOSEVELT, MONTANA
From 05-JAN-22 03:30:00 to 06-JAN-22 19:18:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Eastern Roosevelt County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the early morning of the 5th into the night of the 6th. The peak wind chill of -49 was recorded from 1:29 AM to 1:39 AM on the 6th at the US-2 Stateline DOT site (MTSTA).

Cold/Wind Chill in LITTLE ROCKY MOUNTAINS, MONTANA
From 04-JAN-22 20:39:00 to 06-JAN-22 05:41:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites in the Little Rocky Mountains, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the night of the 4th to the morning of the 6th . The peak wind chill of -45 was recorded at 3:11 AM on the 5th at the Malta South US-191 DOT site (MTMAL).

Cold/Wind Chill in WIBAUX, MONTANA
From 04-JAN-22 23:15:00 to 06-JAN-22 05:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

At the Beach, ND ASOS site (K20U) near Wibaux County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from late night on the 4th to the early morning of the 6th. The peak wind chill of -46 was recorded at 5:35 AM and 6:35 AM.

Cold/Wind Chill in PRAIRIE, MONTANA
From 04-JAN-22 19:08:00 to 05-JAN-22 20:08:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

At the Big Sheep Mountain RAWS site (LCFM8), temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the night of the 4th into the night of the 5th. The peak wind chill of -50 was recorded from 9:08 AM to 10:08 AM on the 5th.

Cold/Wind Chill in SHERIDAN, MONTANA
From 05-JAN-22 05:05:00 to 07-JAN-22 01:30:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Sheridan County, temperatures from the teens to 30s below zero and breezy winds created intermittent periods of wind chills of -40 or worse beginning as early as the morning of the 5th and lasting as long as the early morning of the 7th. The peak wind chill of -55 was recorded from 1:16 AM to 1:32 AM on the 6th at the Comertown Turn-OFF MT-5 DOT site (MTCOM).

Cold/Wind Chill in CENTRAL AND SE PHILLIPS, MONTANA
From 04-JAN-22 11:00:00 to 06-JAN-22 12:35:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

For multiple sites across Central and Southeast Phillips County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the morning of the 4th into the early afternoon of the 6th. The peak wind chill of -53 was recorded at 9:00 AM on the 6th at the mesonet site located 5 miles south of Malta.

Cold/Wind Chill in CENTRAL AND SOUTHERN VALLEY, MONTANA
From 04-JAN-22 17:20:00 to 06-JAN-22 10:53:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

For multiple sites across Central and Southern Valley County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the evening of the 4th into the morning of the 6th. The peak wind chill of -50 was recorded multiple times between 3:40 AM and 8:10 AM on the 5th at the Saint Marie MARCO mesonet site (07MT).

Cold/Wind Chill in GARFIELD, MONTANA
From 05-JAN-22 00:22:00 to 05-JAN-22 10:52:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Garfield County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the early morning on the 5th to the early morning on the 6th. The peak wind chill of -46 was recorded from 6:52 AM to 7:07 AM on the 5th at the Lufborough Hill MT-200 DOT site (MTLUF).

Cold/Wind Chill in MCCONE, MONTANA
From 04-JAN-22 21:23:00 to 06-JAN-22 07:04:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across McCone County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the night of the 4th into the morning of the 6th. The peak wind chill of -47 was recorded at 7:50 AM on the 5th at the Fort Peck Dam handar site (GGWFP) and at 9:24 AM on the 5th at the Cow Creek MT-13 DOT site (MTCOW).

Cold/Wind Chill in DAWSON, MONTANA
From 04-JAN-22 13:54:00 to 06-JAN-22 07:50:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites across Dawson County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the afternoon of the 4th into the morning of the 6th. The peak wind chill of -53 was recorded from 8:19 AM on the 5th at the Lindsay Divide MT-200 DOT site (LDSM8).

Cold/Wind Chill in RICHLAND, MONTANA
From 04-JAN-22 23:30:00 to 06-JAN-22 04:56:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

For multiple sites across Richland County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from late night on the 4th into the early morning of the 6th. The peak wind chill of -46 was recorded at 10:31 PM and 11:45 PM on the 5th, and at 12:30 AM on the 6th at the Badger Creek CWOP mesonet site (FW2498).