Low pressure over southern Saskatchewan kept North-Central and Southwest Montana under an increasingly cold northerly flow. Winds were generally light across the region, but 10 mph across most of North-Central Montana and portions of Southwest Montana, combined with temperatures in the teens below zero, caused widespread wind chill values of 25 below to 45 below zero during overnight hours.

Cold/Wind Chill in HILL, MONTANA
From 05-DEC-13 00:00:00 to 05-DEC-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind chill values less than 40 below zero reported at the Havre, MT ASOS.

Cold/Wind Chill in BLAINE, MONTANA
From 05-DEC-13 00:00:00 to 05-DEC-13 11:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill values less than 40 below zero reported at Fort Belknap, MT.

Cold/Wind Chill in JUDITH BASIN, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Wind chill value of 45 below zero reported 12 mi NNE of Checkerboard, MT at the South Fork Judith RAWS.

Cold/Wind Chill in BLAINE, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

Wind chill value of 42 below zero reported 13 mi S of Fort Belknap, MT at the Fort Belknap RAWS.

Cold/Wind Chill in JEFFERSON, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 43 below zero reported 3 mi SE of Wickes, MT.

Cold/Wind Chill in FERGUS, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 45 below zero reported at Judith Peak, MT.

Cold/Wind Chill in CASCADE, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 44 below zero reported 7 mi S of Neihart, MT.

Cold/Wind Chill in SOUTHERN ROCKY MOUNTAIN FRONT, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Wind chill value of 41 below zero reported 2 mi NW of Pendroy, MT.

Cold/Wind Chill in CASCADE, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind chill value of 45 below zero reported at the Malmstrom AFB, MT ASOS.

Cold/Wind Chill in HILL, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind chill value of 48 below zero reported 4 mi W of Havre, MT at the KHVR ASOS.

Cold/Wind Chill in EASTERN GLACIER, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Wind chill value of 43 below zero reported 3 mi SW of Cut Bank, MT at the KCTB ASOS.

Cold/Wind Chill in BEAVERHEAD, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 41 below zero reported 6 mi ESE of Jackson, MT.

Cold/Wind Chill in MEAGHER, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 44 below zero reported 6 mi S of Neihart, MT.

Cold/Wind Chill in TOOLE, MONTANA
From 06-DEC-13 00:00:00 to 06-DEC-13 12:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Wind chill value of 45 below zero reported 6 mi NNW of Sunburst, MT.