Weather alerts in Montana, December 2018

96 weather alerts in December 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in December 2018. Tap one for its archive.

Alerts: 96
Warnings: 20
Watches: 21
Advisories: 32
Busiest day: December 17, 201811 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Nov 30, 5:54 PM MST	Dense Fog Advisory	GGW	Daniels, Roosevelt, Sheridan	10 hr
Dec 1, 3:20 AM MST	Winter Weather Advisory	MSO	Flathead, Lake, Sanders	6 hr
Dec 1, 7:58 AM MST	Special Weather Statement	TFX	Cascade	62 min
Dec 1, 8:04 AM MST	Special Weather Statement	TFX	Blaine, Fergus	56 min
Dec 1, 3:15 PM MST	Dense Fog Advisory	GGW	Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 2 more	18 hr
Dec 2, 7:54 PM MST	Dense Fog Advisory	GGW	Daniels, Sheridan, Valley	7 hr
Dec 2, 10:00 PM MST	Dense Fog Advisory	TFX		4 hr
Dec 3, 9:42 AM MST	Special Weather Statement	BYZ	Yellowstone	108 min
Dec 3, 6:10 PM MST	Special Weather Statement	BYZ	Custer	4 hr
Dec 3, 7:39 PM MST	Dense Fog Advisory	BYZ	Custer, Rosebud	9 hr
Dec 4, 2:44 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	26 hr
Dec 4, 3:15 PM MST	High Wind Warning	BYZ		14 hr
Dec 5, 1:57 PM MST	Special Weather Statement	BYZ	Custer, Fallon	63 min
Dec 5, 3:01 PM MST	Special Weather Statement	BYZ	Fallon	59 min
Dec 7, 2:12 AM MST	Special Weather Statement	BYZ	Custer, Rosebud	4 hr
Dec 10, 2:45 AM MST	High Wind Watch	TFX		12 hr
Dec 10, 3:08 AM MST	High Wind Watch	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	35 hr
Dec 10, 3:20 AM MST	Winter Storm Watch	MSO	Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more	11 hr
Dec 10, 3:24 AM MST	Winter Storm Watch	TFX		11 hr
Dec 10, 7:31 AM MST	Winter Weather Advisory	MSO	Flathead, Lake, Lincoln, Sanders	2 hr
Dec 10, 2:18 PM MST	High Wind Warning	TFX		3 days
Dec 10, 2:33 PM MST	Blizzard Warning	TFX		42 hr
Dec 10, 2:33 PM MST	Winter Weather Advisory	TFX		45 hr
Dec 10, 2:42 PM MST	Winter Storm Warning	MSO	Flathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more	42 hr
Dec 10, 2:42 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	50 hr
Dec 11, 3:20 AM MST	High Wind Watch	GGW	Phillips	11 hr
Dec 11, 3:33 AM MST	High Wind Watch	TFX		11 hr
Dec 11, 3:38 AM MST	High Wind Warning	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	70 hr
Dec 11, 2:17 PM MST	High Wind Warning	GGW	Phillips	27 hr
Dec 12, 7:46 AM MST	Special Weather Statement	BYZ	Park	29 min
Dec 14, 1:43 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	38 hr
Dec 14, 2:50 AM MST	High Wind Warning	TFX		35 hr
Dec 15, 10:09 AM MST	High Wind Warning	GGW	Phillips	4 hr
Dec 15, 12:46 PM MST	High Wind Warning	BYZ		3 hr
Dec 16, 10:57 PM MST	Special Weather Statement	BYZ	Park	2 hr
Dec 17, 2:13 AM MST	High Wind Watch	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	12 hr
Dec 17, 3:28 AM MST	High Wind Watch	TFX		10 hr
Dec 17, 3:37 AM MST	Winter Storm Watch	TFX		10 hr
Dec 17, 3:39 AM MST	Winter Storm Watch	MSO	Flathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more	11 hr
Dec 17, 7:59 AM MST	Winter Weather Advisory	MSO	Granite, Lake, Missoula, Powell	2 hr
Dec 17, 1:35 PM MST	High Wind Watch	TFX		15 hr
Dec 17, 1:35 PM MST	High Wind Warning	TFX		49 hr
Dec 17, 1:39 PM MST	Winter Weather Advisory	TFX		42 hr
Dec 17, 1:46 PM MST	High Wind Warning	BYZ	Big Horn, Golden Valley, Musselshell, Park, Rosebud, Stillwater and 2 more	50 hr
Dec 17, 2:37 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	44 hr
Dec 18, 2:36 AM MST	High Wind Watch	BYZ	Big Horn, Golden Valley, Musselshell, Rosebud, Stillwater	18 hr
Dec 18, 3:15 AM MST	High Wind Watch	GGW	Petroleum, Phillips	19 hr
Dec 18, 9:45 PM MST	High Wind Warning	GGW	Petroleum, Phillips	18 hr
Dec 19, 2:14 PM MST	High Wind Watch	TFX		13 hr
Dec 20, 2:42 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	28 hr
Dec 20, 3:03 AM MST	High Wind Watch	TFX		12 hr
Dec 20, 3:03 AM MST	High Wind Warning	TFX		36 hr
Dec 20, 2:39 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	20 hr
Dec 20, 3:15 PM MST	Winter Weather Advisory	TFX		21 hr
Dec 21, 10:16 AM MST	High Wind Warning	BYZ	Golden Valley, Wheatland	8 hr
Dec 22, 3:34 AM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	64 hr
Dec 24, 1:19 AM MST	Winter Weather Advisory	TFX		13 hr
Dec 25, 3:01 AM MST	Winter Weather Advisory	GGW	Dawson, Garfield, McCone, Petroleum, Prairie, Richland and 1 more	39 hr
Dec 25, 3:17 AM MST	Winter Weather Advisory	BYZ	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 8 more	38 hr
Dec 25, 8:16 AM MST	Special Weather Statement	TFX	Blaine, Cascade, Chouteau, Fergus, Glacier, Hill and 4 more	119 min
Dec 25, 8:08 PM MST	Special Weather Statement	TFX	Cascade, Chouteau, Hill, Judith Basin, Lewis and Clark, Liberty and 2 more	82 min
Dec 26, 2:25 PM MST	Winter Weather Advisory	MSO	Granite, Missoula, Ravalli	24 hr
Dec 26, 10:42 PM MST	Dense Fog Advisory	TFX		8 hr
Dec 27, 2:39 PM MST	Winter Storm Watch	MSO	Flathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more	48 hr
Dec 27, 3:19 PM MST	High Wind Watch	TFX		36 hr
Dec 27, 3:31 PM MST	Winter Storm Watch	TFX		47 hr
Dec 28, 2:52 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	12 hr
Dec 28, 2:00 PM MST	High Wind Warning	TFX		37 hr
Dec 28, 2:22 PM MST	High Wind Watch	BYZ	Golden Valley, Wheatland	10 hr
Dec 28, 2:22 PM MST	High Wind Warning	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	43 hr
Dec 28, 2:38 PM MST	High Wind Watch	GGW	Phillips	13 hr
Dec 28, 2:40 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	24 hr
Dec 28, 10:57 PM MST	Special Weather Statement	TFX	Cascade	108 min
Dec 29, 3:15 AM MST	High Wind Warning	GGW	Phillips	26 hr
Dec 29, 7:54 AM MST	Special Weather Statement	TFX	Cascade, Liberty	51 min
Dec 29, 8:29 AM MST	Special Weather Statement	BYZ	Sweet Grass	2 hr
Dec 29, 8:39 AM MST	Winter Storm Warning	TFX		43 hr
Dec 29, 9:03 AM MST	Special Weather Statement	TFX	Chouteau, Judith Basin	42 min
Dec 29, 1:58 PM MST	Winter Weather Advisory	BYZ	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 7 more	49 hr
Dec 29, 2:11 PM MST	Winter Storm Warning	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	30 hr
Dec 29, 2:11 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	39 hr
Dec 29, 2:27 PM MST	Wind Chill Watch	GGW	Daniels, Phillips, Roosevelt, Sheridan, Valley	13 hr
Dec 29, 2:35 PM MST	Winter Weather Advisory	TFX		41 hr
Dec 30, 3:30 AM MST	Wind Chill Advisory	GGW	Daniels, Phillips, Roosevelt, Sheridan, Valley	33 hr
Dec 30, 8:23 AM MST	Winter Weather Advisory	GGW	Petroleum	9 hr
Dec 30, 9:59 AM MST	Special Weather Statement	MSO	Missoula	46 min
Dec 30, 2:12 PM MST	Special Weather Statement	MSO	Lake	48 min
Dec 30, 2:16 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Granite, Powell, Silver Bow	15 hr
Dec 30, 2:21 PM MST	Special Weather Statement	MSO	Missoula	39 min
Dec 30, 3:01 PM MST	Winter Storm Warning	BYZ	Carter	24 hr
Dec 30, 3:46 PM MST	Special Weather Statement	MSO	Deer Lodge	44 min
Dec 30, 5:06 PM MST	Special Weather Statement	MSO	Missoula	39 min
Dec 30, 5:20 PM MST	Special Weather Statement	MSO	Ravalli	40 min
Dec 30, 5:52 PM MST	Special Weather Statement	MSO	Granite	53 min
Dec 30, 7:52 PM MST	Wind Chill Advisory	TFX		12 hr
Dec 30, 8:48 PM MST	Mesoscale Discussion	SPC	Big Horn, Carbon, Carter, Powder River, Yellowstone	5 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Mesoscale Discussion	1
Special Weather Statement	22
Winter
Blizzard Warning	1
Winter Storm Warning	4
Winter Storm Watch	6
Winter Weather Advisory	20
Cold
Wind Chill Watch	1
Wind Chill Advisory	2
Wind and dust
High Wind Warning	15
High Wind Watch	14
Wind Advisory	4
Fog and smoke
Dense Fog Advisory	6

By county

Every county with at least one alert. A county page lists each alert that covered it.

10 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2017 2019

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.