Weather alerts in Montana, December 2012

70 weather alerts in December 2012, 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 2012. Tap one for its archive.

Alerts: 70
Warnings: 19
Watches: 7
Advisories: 43
Busiest day: December 1, 20128 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
Dec 1, 3:26 AM MST	High Wind Warning	TFX		55 hr
Dec 1, 3:58 AM MST	High Wind Watch	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	24 hr
Dec 1, 12:07 PM MST	Winter Storm Warning	MSO	Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more	31 hr
Dec 1, 12:07 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Granite, Powell, Silver Bow	31 hr
Dec 1, 2:49 PM MST	Winter Weather Advisory	TFX		31 hr
Dec 1, 3:02 PM MST	High Wind Warning	BYZ	Golden Valley, Park, Stillwater, Sweet Grass, Wheatland	33 hr
Dec 1, 3:16 PM MST	Dense Fog Advisory	GGW	Daniels, Dawson, McCone, Phillips, Richland, Roosevelt and 2 more	15 hr
Dec 1, 3:16 PM MST	High Wind Watch	GGW	Phillips	12 hr
Dec 1, 5:19 PM MST	Dense Fog Advisory	TFX		4 hr
Dec 1, 9:04 PM MST	Wind Advisory	BYZ		24 hr
Dec 1, 9:13 PM MST	Winter Storm Warning	BYZ	Carbon, Park, Stillwater, Sweet Grass	30 hr
Dec 2, 3:03 AM MST	High Wind Warning	GGW	Phillips	40 hr
Dec 2, 7:04 PM MST	Winter Weather Advisory	MSO	Flathead, Granite, Lake, Mineral, Missoula, Powell and 2 more	16 hr
Dec 3, 10:17 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	47 hr
Dec 3, 11:30 AM MST	High Wind Warning	TFX		55 hr
Dec 3, 2:57 PM MST	High Wind Watch	TFX		5 hr
Dec 4, 3:39 AM MST	High Wind Watch	TFX		11 hr
Dec 5, 9:31 AM MST	Winter Weather Advisory	TFX		4 hr
Dec 6, 3:27 AM MST	Winter Weather Advisory	BYZ	Big Horn, Carbon, Park, Stillwater, Sweet Grass	24 hr
Dec 6, 10:22 AM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	52 hr
Dec 6, 3:21 PM MST	Winter Weather Advisory	TFX		54 hr
Dec 7, 2:46 PM MST	Winter Weather Advisory	GGW	Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 4 more	29 hr
Dec 7, 3:42 PM MST	Winter Weather Advisory	BYZ	Big Horn, Carter, Custer, Fallon, Golden Valley, Park and 4 more	35 hr
Dec 7, 7:23 PM MST	Winter Storm Warning	MSO	Deer Lodge, Granite, Lake, Mineral, Missoula, Powell and 3 more	13 hr
Dec 8, 2:57 AM MST	Winter Storm Warning	TFX		18 hr
Dec 8, 8:24 AM MST	Mesoscale Discussion	SPC	Custer, Dawson, Fallon, Garfield, McCone, Prairie and 4 more	4 hr
Dec 9, 1:45 PM MST	Winter Weather Advisory	TFX		20 hr
Dec 9, 2:16 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	19 hr
Dec 9, 3:30 PM MST	Winter Weather Advisory	BYZ	Park, Stillwater, Sweet Grass	29 hr
Dec 9, 4:30 PM MST	High Wind Warning	TFX		12 hr
Dec 10, 1:18 PM MST	High Wind Watch	TFX		7 hr
Dec 10, 2:46 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	36 hr
Dec 10, 8:46 PM MST	High Wind Warning	TFX		32 hr
Dec 11, 1:51 PM MST	Winter Weather Advisory	MSO	Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more	21 hr
Dec 12, 10:04 AM MST	Winter Weather Advisory	GGW	Dawson, McCone, Prairie, Richland	9 hr
Dec 12, 4:25 PM MST	Winter Weather Advisory	TFX		5 hr
Dec 13, 8:49 AM MST	High Wind Warning	TFX		9 hr
Dec 13, 5:35 PM MST	Dense Fog Advisory	BYZ	Custer, Rosebud, Treasure	10 hr
Dec 13, 6:14 PM MST	Dense Fog Advisory	GGW	Daniels, Dawson, Garfield, McCone, Phillips, Prairie and 5 more	27 hr
Dec 15, 10:50 AM MST	Dense Fog Advisory	GGW	Daniels, Dawson, McCone, Phillips, Richland, Roosevelt and 3 more	24 hr
Dec 15, 2:26 PM MST	High Wind Watch	TFX		24 hr
Dec 15, 2:26 PM MST	Winter Weather Advisory	TFX		61 hr
Dec 15, 2:57 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	60 hr
Dec 16, 11:02 AM MST	Dense Fog Advisory	GGW	Daniels, Phillips, Roosevelt, Sheridan, Valley	2 hr
Dec 16, 12:35 PM MST	Winter Storm Warning	MSO	Flathead, Lake, Lincoln, Mineral, Missoula, Sanders	33 hr
Dec 16, 2:01 PM MST	High Wind Warning	TFX		38 hr
Dec 16, 3:12 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	42 hr
Dec 16, 9:37 PM MST	Dense Fog Advisory	GGW	Valley	5 hr
Dec 18, 7:49 AM MST	Winter Weather Advisory	MSO	Flathead, Lake	14 hr
Dec 18, 8:04 AM MST	Winter Weather Advisory	TFX		12 hr
Dec 18, 2:39 PM MST	Winter Weather Advisory	MSO	Flathead, Lake, Lincoln, Mineral, Missoula, Sanders	44 hr
Dec 19, 2:41 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	21 hr
Dec 19, 9:34 AM MST	High Wind Watch	TFX		12 hr
Dec 19, 3:04 PM MST	Winter Storm Warning	TFX		23 hr
Dec 19, 9:14 PM MST	High Wind Warning	TFX		30 hr
Dec 19, 11:54 PM MST	High Wind Warning	BYZ	Park, Stillwater, Sweet Grass	17 hr
Dec 19, 11:54 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	36 hr
Dec 21, 10:54 AM MST	Winter Storm Warning	TFX		17 hr
Dec 22, 2:24 PM MST	Winter Weather Advisory	GGW	Daniels, Sheridan	28 hr
Dec 22, 8:57 PM MST	Winter Weather Advisory	MSO	Granite, Lake, Missoula, Powell, Ravalli	7 hr
Dec 23, 3:40 AM MST	Winter Weather Advisory	TFX		41 hr
Dec 23, 2:08 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	33 hr
Dec 23, 2:23 PM MST	Winter Weather Advisory	GGW	Garfield, Petroleum, Phillips	30 hr
Dec 23, 3:32 PM MST	Winter Weather Advisory	BYZ	Big Horn, Carbon, Golden Valley, Musselshell, Park, Rosebud and 4 more	38 hr
Dec 23, 5:21 PM MST	Winter Storm Warning	MSO	Mineral, Missoula, Sanders	30 hr
Dec 25, 2:00 PM MST	Wind Chill Advisory	GGW	Phillips, Roosevelt, Valley	21 hr
Dec 25, 2:31 PM MST	Wind Chill Advisory	TFX		13 hr
Dec 26, 10:43 AM MST	Wind Chill Warning	GGW	Valley	11 min
Dec 26, 10:54 AM MST	Wind Chill Advisory	GGW	Valley	16 hr
Dec 30, 5:16 AM MST	Winter Weather Advisory	TFX		4 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
Winter
Winter Storm Warning	8
Winter Weather Advisory	27
Cold
Wind Chill Warning	1
Wind Chill Advisory	3
Wind and dust
High Wind Warning	10
High Wind Watch	7
Wind Advisory	6
Fog and smoke
Dense Fog Advisory	7

Nearby

Alerts in force now Tornadoes on record The radar archive 2011 2013

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. Rebuilt daily.