Alert archive / Montana / Daniels County

Weather alerts in Daniels County, Montana, 2017

93 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Daniels County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 93
Warnings: 30
Watches: 10
Advisories: 38
Busiest month: July22 alerts
Busiest day: July 10, 20175 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Daniels County, 2017

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	5	1	80%
Flash flood warnings	0

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Glasgow, MT: tornado warnings	0			1	0%
NWS Glasgow, MT: severe thunderstorm warnings	42	12	71%	43	42%	22 min
NWS Glasgow, MT: flash flood warnings	1	0	100%	0

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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	Lasted
Jan 2, 11:30 AM MST	Wind Chill Advisory	GGW	71 hr
Jan 3, 2:15 PM MST	Winter Weather Advisory	GGW	24 hr
Jan 7, 2:31 PM MST	Winter Storm Watch	GGW	267 days
Jan 7, 6:39 PM MST	Wind Chill Advisory	GGW	5 hr
Jan 8, 2:21 PM MST	Winter Weather Advisory	GGW	29 hr
Jan 9, 2:43 PM MST	Wind Chill Advisory	GGW	21 hr
Jan 10, 2:50 AM MST	Wind Chill Advisory	GGW	57 hr
Jan 11, 3:16 AM MST	Wind Chill Warning	GGW	8 hr
Jan 11, 3:16 AM MST	Wind Chill Advisory	GGW	33 hr
Jan 12, 1:42 AM MST	Blizzard Warning	GGW	4 hr
Jan 12, 2:14 PM MST	Wind Chill Advisory	GGW	19 hr
Jan 29, 2:46 AM MST	High Wind Watch	GGW	12 hr
Jan 29, 2:42 PM MST	High Wind Warning	GGW	23 hr
Feb 5, 3:25 AM MST	Winter Weather Advisory	GGW	48 hr
Feb 7, 2:05 PM MST	Wind Chill Advisory	GGW	23 hr
Feb 8, 2:50 AM MST	Wind Chill Warning	GGW	6 hr
Feb 8, 1:25 PM MST	Wind Chill Advisory	GGW	21 hr
Feb 8, 1:25 PM MST	Winter Weather Advisory	GGW	31 hr
Feb 19, 5:47 PM MST	Dense Fog Advisory	GGW	13 hr
Mar 5, 2:50 AM MST	Winter Weather Advisory	GGW	35 hr
Mar 7, 9:38 AM MST	Winter Weather Advisory	GGW	8 hr
Mar 7, 6:17 PM MST	Winter Weather Advisory	GGW	4 hr
Mar 8, 3:30 AM MST	Winter Storm Watch	GGW	24 hr
Mar 9, 3:50 AM MST	Winter Weather Advisory	GGW	47 hr
Mar 11, 8:56 AM MST	Winter Weather Advisory	GGW	26 hr
Mar 14, 2:59 AM MDT	Freezing Rain Advisory	GGW	24 hr
Mar 16, 9:16 PM MDT	Areal Flood Advisory	GGW	24 hr
Mar 17, 10:29 AM MDT	Areal Flood Advisory	GGW	48 hr
Mar 19, 9:56 AM MDT	Areal Flood Advisory	GGW	3 hr
Mar 19, 12:51 PM MDT	Areal Flood Advisory	GGW	48 hr
Mar 20, 7:37 AM MDT	Areal Flood Advisory	GGW	48 hr
Mar 31, 7:22 AM MDT	Dense Fog Advisory	GGW	4 hr
Apr 20, 3:13 AM MDT	Dense Fog Advisory	GGW	7 hr
Apr 23, 9:34 AM MDT	Winter Weather Advisory	GGW	21 hr
May 21, 3:27 PM MDT	Special Weather Statement	GGW	63 min
May 21, 4:07 PM MDT	Special Weather Statement	GGW	53 min
May 21, 4:35 PM MDT	Special Weather Statement	GGW	55 min
May 21, 7:50 PM MDT	Special Weather Statement	GGW	55 min
May 23, 1:18 PM MDT	Red Flag Warning	GGW	31 hr
May 28, 2:48 AM MDT	Red Flag Warning	GGW	18 hr
Jun 1, 10:23 PM MDT	Special Weather Statement	GGW	37 min
Jun 13, 4:58 PM MDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 2:22 PM MDT	High Wind Warning	GGW	3 hr
Jul 4, 7:04 PM MDT	Red Flag Warning	GGW	25 hr
Jul 10, 3:20 AM MDT	Red Flag Warning	GGW	18 hr
Jul 10, 4:43 PM MDT	Severe Thunderstorm Warning	GGW	47 min
Jul 10, 4:47 PM MDT	Mesoscale Discussion	SPC	88 min
Jul 10, 5:32 PM MDT	Severe Thunderstorm Warning	GGW	28 min
Jul 10, 5:56 PM MDT	Severe Thunderstorm Warning	GGW	42 min
Jul 10, 6:48 PM MDT	Special Weather Statement	GGW	42 min
Jul 11, 5:28 AM MDT	Special Weather Statement	GGW	62 min
Jul 13, 3:04 PM MDT	Red Flag Warning	GGW	30 hr
Jul 13, 3:04 PM MDT	Red Flag Warning	GGW	3 days
Jul 14, 2:41 PM MDT	Heat Advisory	GGW	54 hr
Jul 14, 2:43 PM MDT	Fire Weather Watch	GGW	24 hr
Jul 16, 6:30 PM MDT	Mesoscale Discussion	SPC	2 hr
Jul 16, 8:19 PM MDT	Special Weather Statement	GGW	41 min
Jul 16, 9:05 PM MDT	Special Weather Statement	GGW	55 min
Jul 20, 1:47 PM MDT	Special Weather Statement	GGW	43 min
Jul 20, 2:32 PM MDT	Mesoscale Discussion	SPC	58 min
Jul 20, 2:39 PM MDT	Red Flag Warning	GGW	54 hr
Jul 23, 3:09 AM MDT	Fire Weather Watch	GGW	11 hr
Jul 23, 2:28 PM MDT	Red Flag Warning	GGW	31 hr
Jul 28, 6:51 PM MDT	Special Weather Statement	GGW	39 min
Jul 28, 7:03 PM MDT	Severe Thunderstorm Warning	GGW	28 min
Aug 16, 3:05 AM MDT	Fire Weather Watch	GGW	11 hr
Aug 16, 2:14 PM MDT	Red Flag Warning	GGW	31 hr
Aug 18, 2:49 PM MDT	Red Flag Warning	GGW	28 hr
Aug 24, 9:40 PM MDT	Severe Thunderstorm Warning	GGW	65 min
Aug 29, 2:52 PM MDT	Fire Weather Watch	GGW	37 hr
Aug 30, 3:44 AM MDT	Red Flag Warning	GGW	41 hr
Sep 1, 3:09 PM MDT	Fire Weather Watch	GGW	24 hr
Sep 2, 2:52 PM MDT	Red Flag Warning	GGW	54 hr
Sep 7, 2:24 PM MDT	Red Flag Warning	GGW	29 hr
Sep 12, 3:49 PM MDT	Dense Smoke Advisory	GGW	12 hr
Sep 16, 9:57 PM MDT	Dense Fog Advisory	GGW	11 hr
Oct 17, 3:04 AM MDT	High Wind Warning	GGW	24 hr
Oct 18, 9:34 AM MDT	Red Flag Warning	GGW	8 hr
Oct 24, 2:49 PM MDT	Red Flag Warning	GGW	32 hr
Nov 2, 2:53 AM MDT	Winter Storm Watch	GGW	12 hr
Nov 2, 2:41 PM MDT	Winter Weather Advisory	GGW	45 hr
Nov 11, 2:50 PM MST	Dense Fog Advisory	GGW	20 hr
Nov 12, 5:25 PM MST	Dense Fog Advisory	GGW	18 hr
Dec 18, 2:59 AM MST	Winter Storm Watch	GGW	12 hr
Dec 18, 2:35 PM MST	Winter Storm Warning	GGW	50 hr
Dec 18, 2:35 PM MST	Winter Weather Advisory	GGW	55 hr
Dec 24, 3:02 AM MST	Wind Chill Advisory	GGW	3 days
Dec 25, 3:02 AM MST	Wind Chill Warning	GGW	8 hr
Dec 25, 3:02 AM MST	Wind Chill Advisory	GGW	57 hr
Dec 26, 8:35 PM MST	Wind Chill Warning	GGW	11 hr
Dec 27, 1:22 PM MST	Wind Chill Advisory	GGW	20 hr
Dec 28, 9:49 AM MST	Wind Chill Advisory	GGW	31 hr
Dec 29, 3:01 AM MST	Wind Chill Warning	GGW	3 days

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	5
Mesoscale Discussion	4
Special Weather Statement	11
Flooding
Areal Flood Advisory	5
Winter
Blizzard Warning	1
Winter Storm Warning	1
Winter Storm Watch	4
Freezing Rain Advisory	1
Winter Weather Advisory	12
Heat
Heat Advisory	1
Cold
Wind Chill Warning	5
Wind Chill Advisory	12
Wind and dust
High Wind Warning	3
High Wind Watch	1
Fire
Red Flag Warning	15
Fire Weather Watch	5
Fog and smoke
Dense Fog Advisory	6
Dense Smoke Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2016 2018

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.