Weather alerts in Montana, May 2007

165 weather alerts in May 2007, 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 May 2007. Tap one for its archive.

Alerts: 165
Warnings: 109
Watches: 14
Advisories: 19
Busiest day: May 14, 200728 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
May 1, 3:31 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	69 hr
May 2, 2:28 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Park, Stillwater, Sweet Grass, Yellowstone	2 hr
May 2, 3:02 PM MDT	Snow Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 3 more	27 hr
May 2, 3:51 PM MDT	Severe Thunderstorm Warning	TFX	Liberty, Toole	39 min
May 2, 4:36 PM MDT	Mesoscale Discussion	SPC	Broadwater, Cascade, Chouteau, Fergus, Gallatin, Glacier and 13 more	114 min
May 2, 9:23 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips, Valley	67 min
May 2, 10:01 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	59 min
May 3, 4:21 AM MDT	Snow Advisory	TFX		14 hr
May 3, 1:20 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Yellowstone	25 min
May 3, 1:35 PM MDT	Mesoscale Discussion	SPC	Big Horn, Custer, Garfield, McCone, Petroleum, Phillips and 5 more	25 min
May 3, 1:40 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Custer, Daniels, Garfield, McCone, Musselshell and 9 more	6 hr
May 3, 1:43 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Yellowstone	32 min
May 3, 2:05 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	25 min
May 3, 2:17 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	28 min
May 3, 2:47 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	58 min
May 3, 3:31 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone	59 min
May 3, 3:43 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Valley	62 min
May 3, 4:04 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	56 min
May 3, 4:55 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Valley	65 min
May 3, 5:59 PM MDT	Mesoscale Discussion	SPC	Custer, Daniels, Dawson, McCone, Powder River, Prairie and 4 more	61 min
May 3, 6:18 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Valley	30 min
May 5, 3:18 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Petroleum, Phillips, Valley	39 hr
May 5, 4:43 AM MDT	Flood Watch	BYZ	Powder River, Rosebud	23 hr
May 5, 6:58 AM MDT	Snow Advisory	BYZ	Carbon, Stillwater, Sweet Grass	3 hr
May 5, 10:08 AM MDT	Heavy Snow Warning	BYZ	Carbon, Park, Stillwater, Sweet Grass	6 hr
May 10, 12:30 PM MDT	Mesoscale Discussion	SPC	Beaverhead, Broadwater, Carbon, Deer Lodge, Fergus, Gallatin and 14 more	3 hr
May 10, 1:10 PM MDT	Severe Thunderstorm Warning	TFX	Jefferson, Madison	50 min
May 10, 1:57 PM MDT	Severe Thunderstorm Warning	TFX	Beaverhead, Madison	48 min
May 10, 2:16 PM MDT	Severe Thunderstorm Watch	SPC	Beaverhead, Broadwater, Carbon, Deer Lodge, Fergus, Gallatin and 14 more	7 hr
May 10, 2:24 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin, Madison	51 min
May 10, 3:44 PM MDT	Severe Thunderstorm Warning	MSO	Powell	35 min
May 10, 3:49 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark	56 min
May 10, 3:58 PM MDT	Severe Thunderstorm Warning	MSO	Missoula	62 min
May 10, 3:59 PM MDT	Mesoscale Discussion	SPC	Big Horn, Custer, Powder River, Rosebud, Treasure	2 hr
May 10, 4:04 PM MDT	Severe Thunderstorm Warning	MSO	Lake, Powell	26 min
May 10, 4:08 PM MDT	Severe Thunderstorm Warning	MSO	Missoula	52 min
May 10, 4:12 PM MDT	Severe Thunderstorm Warning	MSO	Ravalli	48 min
May 10, 4:19 PM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark	41 min
May 10, 4:45 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Chouteau	60 min
May 10, 4:59 PM MDT	Mesoscale Discussion	SPC	Beaverhead, Broadwater, Carbon, Cascade, Chouteau, Deer Lodge and 21 more	2 hr
May 10, 6:39 PM MDT	Severe Thunderstorm Warning	TFX	Cascade, Lewis and Clark, Teton	51 min
May 12, 3:44 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	16 hr
May 12, 1:19 PM MDT	Mesoscale Discussion	SPC	Blaine, Broadwater, Cascade, Chouteau, Fergus, Golden Valley and 10 more	116 min
May 12, 2:11 PM MDT	Severe Thunderstorm Watch	SPC	Blaine, Broadwater, Cascade, Chouteau, Deer Lodge, Fergus and 14 more	7 hr
May 12, 5:04 PM MDT	Severe Thunderstorm Warning	TFX	Judith Basin	41 min
May 12, 5:07 PM MDT	Mesoscale Discussion	SPC	Blaine, Broadwater, Cascade, Chouteau, Fergus, Hill and 8 more	83 min
May 12, 6:22 PM MDT	Severe Thunderstorm Warning	TFX	Liberty	23 min
May 12, 7:31 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	37 min
May 12, 7:42 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	63 min
May 12, 8:06 PM MDT	Severe Thunderstorm Warning	GGW	Petroleum	54 min
May 12, 9:09 PM MDT	Severe Thunderstorm Warning	GGW	Phillips	31 min
May 12, 11:31 PM MDT	Severe Thunderstorm Warning	MSO	Flathead	44 min
May 13, 12:11 AM MDT	Severe Thunderstorm Warning	MSO	Flathead	38 min
May 13, 1:49 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Custer, Gallatin, Garfield, Golden Valley and 10 more	56 min
May 13, 2:32 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Carbon, Carter, Custer, Dawson, Fallon and 16 more	7 hr
May 13, 2:48 PM MDT	Severe Thunderstorm Warning	TFX	Judith Basin	18 min
May 13, 3:12 PM MDT	Severe Thunderstorm Warning	BYZ	Park, Wheatland	63 min
May 13, 3:18 PM MDT	Severe Thunderstorm Warning	BYZ	Sweet Grass	57 min
May 13, 3:18 PM MDT	Severe Thunderstorm Warning	TFX	Gallatin	42 min
May 13, 3:34 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	56 min
May 13, 3:48 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	57 min
May 13, 4:12 PM MDT	Severe Thunderstorm Warning	BYZ	Park, Sweet Grass	63 min
May 13, 4:24 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell	29 min
May 13, 4:40 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Stillwater, Wheatland	80 min
May 13, 4:44 PM MDT	Severe Thunderstorm Warning	GGW	Valley	46 min
May 13, 4:58 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Custer, Garfield, McCone, Musselshell and 6 more	92 min
May 13, 4:59 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater, Sweet Grass	61 min
May 13, 5:09 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	66 min
May 13, 5:27 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan, Valley	63 min
May 13, 5:58 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Treasure, Yellowstone	62 min
May 13, 6:11 PM MDT	Severe Thunderstorm Warning	GGW	Phillips, Valley	64 min
May 13, 6:12 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	33 min
May 13, 6:19 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	44 min
May 13, 6:24 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Phillips, Valley	66 min
May 13, 6:28 PM MDT	Severe Thunderstorm Warning	GGW	Daniels, Roosevelt, Sheridan	62 min
May 13, 6:37 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud, Treasure	53 min
May 13, 6:38 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Yellowstone	67 min
May 13, 6:39 PM MDT	Mesoscale Discussion	SPC	Sheridan	96 min
May 13, 6:53 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie, Richland, Roosevelt	67 min
May 13, 6:54 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Treasure, Yellowstone	57 min
May 13, 7:13 PM MDT	Mesoscale Discussion	SPC	Carter, Custer, Fallon, Powder River, Rosebud	92 min
May 13, 7:16 PM MDT	Severe Thunderstorm Warning	GGW	Valley	59 min
May 13, 7:26 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Roosevelt, Valley	64 min
May 13, 7:27 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	63 min
May 13, 7:30 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud, Treasure	45 min
May 13, 7:46 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	59 min
May 13, 7:49 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	56 min
May 13, 8:01 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie, Richland	59 min
May 13, 8:14 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	31 min
May 13, 8:22 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	53 min
May 13, 8:34 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Richland, Wibaux	56 min
May 13, 8:56 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	64 min
May 13, 9:13 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	32 min
May 13, 9:22 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	23 min
May 13, 9:25 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie, Richland, Wibaux	65 min
May 13, 9:46 PM MDT	Flash Flood Warning	BYZ	Custer, Fallon, Rosebud	119 min
May 13, 9:58 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	47 min
May 14, 8:55 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	9 hr
May 17, 2:55 PM MDT	Mesoscale Discussion	SPC	Beaverhead, Broadwater, Cascade, Deer Lodge, Fergus, Gallatin and 20 more	65 min
May 17, 3:26 PM MDT	Severe Thunderstorm Warning	TFX	Fergus	20 min
May 17, 8:40 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau, Hill	50 min
May 18, 3:08 PM MDT	Mesoscale Discussion	SPC	Big Horn, Broadwater, Carbon, Fergus, Gallatin, Golden Valley and 10 more	3 hr
May 18, 3:56 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland, Wibaux	64 min
May 18, 4:17 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Yellowstone	28 min
May 18, 4:48 PM MDT	Severe Thunderstorm Warning	GGW	Richland, Wibaux	42 min
May 19, 3:43 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	15 hr
May 19, 1:41 PM MDT	Mesoscale Discussion	SPC	Big Horn, Broadwater, Carbon, Cascade, Fergus, Golden Valley and 12 more	64 min
May 19, 2:36 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Broadwater, Carbon, Carter, Cascade, Chouteau and 18 more	7 hr
May 19, 4:23 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Yellowstone	35 min
May 19, 4:31 PM MDT	Severe Thunderstorm Warning	TFX	Fergus, Judith Basin	44 min
May 19, 5:30 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley	47 min
May 19, 5:43 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carter, Custer, Fergus, Golden Valley, Judith Basin and 9 more	92 min
May 19, 6:08 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	67 min
May 19, 6:28 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	62 min
May 19, 6:46 PM MDT	Severe Thunderstorm Warning	BYZ	Powder River	59 min
May 19, 6:55 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	65 min
May 19, 7:13 PM MDT	Severe Thunderstorm Warning	TFX	Chouteau	47 min
May 19, 7:19 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	56 min
May 19, 7:26 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	35 min
May 19, 7:40 PM MDT	Severe Thunderstorm Warning	BYZ	Yellowstone	30 min
May 19, 9:04 PM MDT	Mesoscale Discussion	SPC	Carter, Custer, Fergus, Garfield, Musselshell, Petroleum and 4 more	56 min
May 19, 9:23 PM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	6 hr
May 20, 3:50 AM MDT	Winter Storm Watch	MSO	Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 2 more	24 hr
May 20, 4:45 AM MDT	Winter Storm Watch	TFX		23 hr
May 20, 1:45 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Carter, Custer, Golden Valley, Musselshell and 7 more	60 min
May 20, 2:07 PM MDT	Heavy Snow Warning	MSO	Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow	40 hr
May 20, 2:07 PM MDT	Snow Advisory	MSO	Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more	24 hr
May 20, 2:11 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	60 min
May 20, 2:33 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Carbon, Carter, Custer, Dawson, Fallon and 13 more	9 hr
May 20, 4:51 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Wheatland	37 min
May 20, 6:20 PM MDT	Severe Thunderstorm Warning	BYZ	Wheatland	40 min
May 20, 6:48 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carter, Custer, Powder River, Prairie, Rosebud and 2 more	87 min
May 20, 6:50 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley	25 min
May 20, 7:17 PM MDT	Severe Thunderstorm Warning	BYZ	Golden Valley, Musselshell	58 min
May 20, 7:54 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	66 min
May 20, 8:09 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell	36 min
May 20, 8:32 PM MDT	Severe Thunderstorm Warning	BYZ	Musselshell, Rosebud, Treasure, Yellowstone	73 min
May 20, 8:57 PM MDT	Severe Thunderstorm Warning	GGW	Garfield	63 min
May 20, 9:58 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, McCone, Prairie	62 min
May 20, 10:03 PM MDT	Mesoscale Discussion	SPC	Custer, Dawson, Prairie, Wibaux	87 min
May 20, 11:00 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, McCone, Prairie	60 min
May 20, 11:57 PM MDT	Severe Thunderstorm Warning	GGW	Dawson, Prairie	63 min
May 21, 12:34 AM MDT	Severe Thunderstorm Warning	GGW	Dawson, Richland	56 min
May 21, 1:14 AM MDT	Severe Thunderstorm Warning	GGW	Richland	46 min
May 21, 4:00 AM MDT	Snow Advisory	TFX		48 hr
May 21, 2:49 PM MDT	Flood Watch	BYZ	Big Horn	44 hr
May 21, 4:52 PM MDT	Heavy Snow Warning	BYZ	Carbon, Park, Stillwater, Sweet Grass	35 hr
May 21, 7:06 PM MDT	Heavy Snow Warning	TFX		33 hr
May 22, 3:16 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	17 hr
May 22, 5:48 AM MDT	Snow Advisory	MSO	Deer Lodge, Granite, Powell, Silver Bow	6 hr
May 23, 8:44 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	12 hr
May 23, 2:32 PM MDT	Winter Storm Watch	MSO	Flathead, Lake	14 hr
May 23, 2:57 PM MDT	Winter Storm Watch	TFX		13 hr
May 24, 4:00 AM MDT	Heavy Snow Warning	TFX		30 hr
May 24, 4:17 AM MDT	Heavy Snow Warning	MSO	Flathead, Granite, Lake, Missoula, Powell	26 hr
May 24, 2:13 PM MDT	Snow Advisory	MSO	Deer Lodge, Granite, Powell, Silver Bow	14 hr
May 24, 2:45 PM MDT	Flood Watch	GGW	Phillips, Valley	6 hr
May 24, 3:40 PM MDT	Severe Thunderstorm Warning	GGW	Garfield, Petroleum	65 min
May 24, 4:37 PM MDT	Mesoscale Discussion	SPC	Big Horn, Garfield, Musselshell, Petroleum, Rosebud, Treasure and 1 more	53 min
May 24, 7:01 PM MDT	Flash Flood Watch	TFX		9 hr
May 25, 4:23 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	10 hr
May 27, 7:04 PM MDT	Mesoscale Discussion	SPC	Big Horn, Broadwater, Carbon, Gallatin, Garfield, Golden Valley and 11 more	116 min
May 28, 3:58 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	16 hr
May 29, 8:35 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	9 hr
May 31, 2:58 AM MDT	Lake Wind Advisory	GGW	Garfield, McCone, Valley	16 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
Severe Thunderstorm Warning	102
Severe Thunderstorm Watch	6
Mesoscale Discussion	23
Flooding
Flash Flood Warning	1
Flash Flood Watch	1
Flood Watch	3
Winter
Heavy Snow Warning	6
Winter Storm Watch	4
Snow Advisory	7
Wind and dust
Lake Wind Advisory	12

By county

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

15 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2006 2008

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.