Weather alerts in Montana, December 2011

76 weather alerts in December 2011, 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 2011. Tap one for its archive.

Alerts: 76
Warnings: 23
Watches: 17
Advisories: 34
Busiest day: December 27, 20119 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, 5:28 PM MST	High Wind Warning	TFX		3 hr
Dec 1, 3:09 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	18 hr
Dec 1, 8:50 PM MST	High Wind Warning	TFX		8 hr
Dec 3, 3:18 AM MST	Winter Weather Advisory	GGW	Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more	38 hr
Dec 3, 4:20 AM MST	Winter Storm Watch	TFX		6 hr
Dec 3, 10:02 AM MST	Winter Storm Warning	TFX		31 hr
Dec 3, 10:02 AM MST	Winter Weather Advisory	TFX		31 hr
Dec 3, 2:08 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow	21 hr
Dec 3, 9:39 PM MST	Winter Weather Advisory	BYZ	Carbon, Park, Stillwater, Sweet Grass	15 hr
Dec 6, 2:08 AM MST	High Wind Warning	BYZ		13 hr
Dec 6, 2:08 AM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	13 hr
Dec 7, 10:26 AM MST	Freezing Fog Advisory	TFX		3 hr
Dec 8, 8:26 AM MST	Dense Fog Advisory	MSO	Flathead, Lake, Sanders	4 hr
Dec 9, 2:47 PM MST	Dense Fog Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	20 hr
Dec 10, 2:44 PM MST	Dense Fog Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	17 hr
Dec 11, 8:08 AM MST	Winter Weather Advisory	MSO	Flathead, Lincoln, Sanders	4 hr
Dec 12, 9:27 PM MST	Dense Fog Advisory	GGW	Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more	35 hr
Dec 13, 3:49 AM MST	Dense Fog Advisory	TFX		7 hr
Dec 13, 11:40 PM MST	Dense Fog Advisory	TFX		4 hr
Dec 16, 3:27 AM MST	High Wind Watch	TFX		24 hr
Dec 16, 8:26 AM MST	Dense Fog Advisory	GGW	Daniels, Dawson, McCone, Phillips, Richland, Roosevelt and 2 more	18 hr
Dec 17, 3:43 AM MST	High Wind Warning	TFX		32 hr
Dec 17, 7:35 PM MST	Dense Fog Advisory	MSO	Flathead, Lake, Lincoln, Mineral, Missoula, Sanders	9 hr
Dec 18, 11:43 AM MST	Winter Weather Advisory	TFX		11 hr
Dec 19, 3:30 AM MST	High Wind Watch	TFX		13 hr
Dec 19, 1:39 PM MST	High Wind Warning	TFX		25 hr
Dec 19, 2:14 PM MST	Winter Storm Watch	BYZ	Carbon, Park, Stillwater, Sweet Grass	26 hr
Dec 20, 2:41 AM MST	High Wind Warning	BYZ		12 hr
Dec 20, 3:49 AM MST	Winter Storm Watch	TFX		11 hr
Dec 20, 3:49 AM MST	Winter Weather Advisory	TFX		39 hr
Dec 20, 2:45 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	24 hr
Dec 20, 2:45 PM MST	Winter Storm Warning	TFX		28 hr
Dec 20, 3:47 PM MST	Winter Storm Warning	BYZ	Carbon, Park, Stillwater, Sweet Grass	29 hr
Dec 20, 3:47 PM MST	Winter Weather Advisory	BYZ	Big Horn, Golden Valley, Park, Powder River, Rosebud, Stillwater and 1 more	29 hr
Dec 21, 1:49 AM MST	Winter Weather Advisory	GGW	Dawson, Garfield, McCone, Phillips, Prairie, Valley and 1 more	13 hr
Dec 21, 2:34 PM MST	High Wind Watch	BYZ		13 hr
Dec 22, 3:17 AM MST	High Wind Watch	BYZ	Park, Stillwater, Sweet Grass	12 hr
Dec 22, 3:17 AM MST	High Wind Warning	BYZ		38 hr
Dec 22, 2:10 PM MST	High Wind Watch	TFX		25 hr
Dec 22, 2:10 PM MST	High Wind Warning	TFX		4 days
Dec 22, 3:16 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	42 hr
Dec 22, 9:16 PM MST	Winter Weather Advisory	TFX		15 hr
Dec 24, 7:37 AM MST	Winter Weather Advisory	MSO	Flathead, Lincoln, Mineral, Missoula, Sanders	3 hr
Dec 24, 2:03 PM MST	Winter Weather Advisory	MSO	Mineral, Missoula, Sanders	6 hr
Dec 24, 2:42 PM MST	High Wind Watch	TFX		23 hr
Dec 25, 6:24 AM MST	Freezing Fog Advisory	MSO	Flathead, Lake, Mineral, Missoula, Ravalli, Sanders	6 hr
Dec 25, 2:41 PM MST	High Wind Warning	GGW	Petroleum, Phillips	19 hr
Dec 25, 4:46 PM MST	High Wind Warning	BYZ		17 hr
Dec 25, 4:46 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	17 hr
Dec 26, 2:41 AM MST	High Wind Warning	GGW	Daniels, Dawson, Garfield, McCone, Prairie, Richland and 4 more	12 hr
Dec 26, 2:52 PM MST	High Wind Watch	TFX		12 hr
Dec 26, 2:56 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	18 hr
Dec 27, 2:48 AM MST	High Wind Warning	TFX		66 hr
Dec 27, 3:15 AM MST	Winter Weather Advisory	MSO	Flathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more	57 hr
Dec 27, 8:56 AM MST	High Wind Warning	BYZ	Big Horn, Carter, Custer, Fallon, Golden Valley, Musselshell and 7 more	60 hr
Dec 27, 10:49 AM MST	Flood Watch	MSO	Lincoln	3 days
Dec 27, 2:19 PM MST	Wind Advisory	MSO	Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow	48 hr
Dec 27, 2:36 PM MST	High Wind Watch	TFX		14 hr
Dec 27, 2:39 PM MST	High Wind Watch	BYZ	Big Horn, Carter, Custer, Fallon, Golden Valley, Musselshell and 4 more	38 hr
Dec 27, 2:41 PM MST	Winter Weather Advisory	TFX		45 hr
Dec 27, 3:31 PM MST	High Wind Watch	GGW	Petroleum, Phillips	12 hr
Dec 28, 3:38 AM MST	High Wind Watch	GGW	Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 4 more	24 hr
Dec 28, 3:38 AM MST	High Wind Warning	GGW	Phillips	14 hr
Dec 29, 4:05 AM MST	High Wind Warning	GGW	Dawson, Garfield, McCone, Petroleum, Phillips, Prairie and 3 more	19 hr
Dec 29, 7:33 AM MST	Special Weather Statement	BYZ	Yellowstone	42 min
Dec 29, 8:20 AM MST	Special Weather Statement	BYZ	Big Horn, Rosebud, Treasure	55 min
Dec 29, 2:30 PM MST	Winter Weather Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more	42 hr
Dec 29, 2:35 PM MST	Winter Weather Advisory	TFX		38 hr
Dec 29, 3:13 PM MST	Wind Advisory	BYZ	Park, Stillwater, Sweet Grass	30 hr
Dec 29, 10:14 PM MST	Winter Storm Warning	MSO	Flathead, Lake	29 hr
Dec 30, 3:21 AM MST	High Wind Watch	BYZ	Big Horn, Carter, Custer, Fallon, Musselshell, Powder River and 2 more	23 hr
Dec 30, 3:23 AM MST	High Wind Watch	GGW	Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more	23 hr
Dec 30, 3:36 AM MST	Winter Storm Warning	BYZ	Carbon, Park, Stillwater, Sweet Grass	30 hr
Dec 30, 4:57 AM MST	High Wind Warning	TFX		14 hr
Dec 31, 2:45 AM MST	High Wind Warning	GGW	Daniels, Dawson, McCone, Prairie, Richland, Roosevelt and 3 more	12 hr
Dec 31, 2:48 AM MST	High Wind Warning	BYZ	Carter, Custer, Fallon, Powder River	12 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
Special Weather Statement	2
Flooding
Flood Watch	1
Winter
Winter Storm Warning	5
Winter Storm Watch	3
Winter Weather Advisory	17
Wind and dust
High Wind Warning	18
High Wind Watch	13
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	8
Freezing Fog Advisory	2

Nearby

Alerts in force now Tornadoes on record The radar archive 2010 2012

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.