Alert archive / North Dakota / Rolette County

Weather alerts in Rolette County, North Dakota, 2023

77 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Rolette County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 77
Warnings: 14
Watches: 9
Advisories: 32
Busiest month: October11 alerts
Busiest day: July 2, 20236 alerts

Over time

By month

Warning verification

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

Rolette County, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	5	4	20%	4	50%	28 min
Flash flood warnings	0			0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Bismarck, ND: tornado warnings	4	1	75%	4	25%	11 min
NWS Bismarck, ND: severe thunderstorm warnings	132	89	33%	203	86%	26 min
NWS Bismarck, ND: 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 3, 2:06 AM CST	Dense Fog Advisory	BIS	34 hr
Jan 15, 6:18 AM CST	Dense Fog Advisory	BIS	33 hr
Jan 21, 10:48 PM CST	Dense Fog Advisory	BIS	13 hr
Jan 25, 4:06 AM CST	Wind Advisory	BIS	51 hr
Jan 27, 1:01 PM CST	Wind Chill Advisory	BIS	71 hr
Jan 28, 1:27 PM CST	Wind Chill Warning	BIS	46 hr
Jan 30, 11:25 AM CST	Wind Chill Advisory	BIS	25 hr
Feb 1, 1:45 PM CST	Wind Chill Advisory	BIS	46 hr
Feb 2, 2:38 AM CST	Wind Chill Warning	BIS	9 hr
Feb 5, 6:29 PM CST	Dense Fog Advisory	BIS	6 hr
Feb 14, 3:28 AM CST	Winter Weather Advisory	BIS	29 hr
Feb 19, 2:39 AM CST	Winter Weather Advisory	BIS	42 hr
Feb 21, 1:58 PM CST	Wind Chill Warning	BIS	46 hr
Feb 21, 1:58 PM CST	Wind Chill Advisory	BIS	4 days
Mar 9, 10:14 AM CST	Winter Storm Watch	BIS	16 hr
Mar 10, 2:43 AM CST	Blizzard Warning	BIS	47 hr
Mar 10, 8:41 PM CST	Winter Weather Advisory	BIS	38 hr
Mar 10, 11:08 PM CST	Mesoscale Discussion	SPC	5 hr
Mar 17, 3:37 AM CDT	Winter Weather Advisory	BIS	17 hr
Mar 17, 2:33 PM CDT	Wind Chill Advisory	BIS	20 hr
Mar 23, 6:42 AM CDT	Dense Fog Advisory	BIS	5 hr
Apr 2, 3:22 AM CDT	Winter Storm Watch	BIS	33 hr
Apr 3, 4:05 AM CDT	Blizzard Warning	BIS	68 hr
Apr 5, 1:02 PM CDT	Mesoscale Discussion	SPC	4 hr
Apr 14, 12:53 PM CDT	Areal Flood Warning	BIS	6 days
Apr 18, 2:56 AM CDT	Winter Storm Watch	BIS	12 hr
Apr 18, 2:43 PM CDT	Winter Weather Advisory	BIS	36 hr
Apr 20, 3:07 AM CDT	Winter Weather Advisory	BIS	42 hr
Jun 8, 5:00 PM CDT	Special Weather Statement	BIS	30 min
Jun 8, 5:32 PM CDT	Special Weather Statement	BIS	28 min
Jun 8, 6:11 PM CDT	Special Weather Statement	BIS	34 min
Jun 8, 6:21 PM CDT	Severe Thunderstorm Warning	BIS	39 min
Jun 20, 4:52 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 20, 8:51 PM CDT	Severe Thunderstorm Warning	BIS	39 min
Jun 28, 2:27 PM CDT	Special Weather Statement	BIS	33 min
Jun 28, 4:56 PM CDT	Special Weather Statement	BIS	34 min
Jun 28, 5:28 PM CDT	Special Weather Statement	BIS	47 min
Jun 28, 5:46 PM CDT	Special Weather Statement	BIS	29 min
Jul 1, 10:15 PM CDT	Severe Thunderstorm Warning	BIS	60 min
Jul 1, 10:57 PM CDT	Severe Thunderstorm Warning	BIS	63 min
Jul 2, 5:20 PM CDT	Special Weather Statement	BIS	25 min
Jul 2, 5:40 PM CDT	Special Weather Statement	BIS	50 min
Jul 2, 5:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 2, 6:38 PM CDT	Special Weather Statement	BIS	37 min
Jul 19, 12:46 AM CDT	Special Weather Statement	BIS	29 min
Jul 19, 1:20 AM CDT	Special Weather Statement	BIS	40 min
Jul 19, 2:47 AM CDT	Special Weather Statement	BIS	43 min
Jul 31, 5:11 PM CDT	Mesoscale Discussion	SPC	94 min
Aug 16, 3:14 AM CDT	Wind Advisory	BIS	18 hr
Aug 23, 3:43 PM CDT	Mesoscale Discussion	SPC	3 hr
Aug 23, 4:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 24, 2:22 AM CDT	Dense Fog Advisory	BIS	8 hr
Aug 24, 1:20 PM CDT	Mesoscale Discussion	SPC	115 min
Aug 24, 2:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 24, 3:42 PM CDT	Severe Thunderstorm Warning	BIS	63 min
Aug 24, 5:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 26, 5:53 AM CDT	Dense Fog Advisory	BIS	5 hr
Sep 16, 6:18 AM CDT	Dense Fog Advisory	BIS	5 hr
Sep 25, 4:23 AM CDT	Dense Fog Advisory	BIS	8 hr
Oct 1, 9:50 PM CDT	Dense Fog Advisory	BIS	11 hr
Oct 3, 3:46 AM CDT	Special Weather Statement	BIS	29 min
Oct 3, 4:23 AM CDT	Special Weather Statement	BIS	22 min
Oct 4, 2:15 PM CDT	Freeze Watch	BIS	24 hr
Oct 5, 1:22 PM CDT	Wind Advisory	BIS	21 hr
Oct 5, 2:31 PM CDT	Freeze Watch	BIS	20 hr
Oct 6, 10:03 AM CDT	Freeze Warning	BIS	23 hr
Oct 9, 6:16 AM CDT	Dense Fog Advisory	BIS	5 hr
Oct 23, 11:34 AM CDT	Winter Storm Watch	BIS	49 hr
Oct 24, 4:17 PM CDT	Winter Storm Warning	BIS	61 hr
Oct 30, 2:58 PM CDT	Snow Squall Warning Significant damage threat	BIS	32 min
Nov 7, 1:20 AM CST	Dense Fog Advisory	BIS	11 hr
Dec 4, 11:34 PM CST	Dense Fog Advisory	BIS	11 hr
Dec 7, 4:25 AM CST	Winter Weather Advisory	BIS	56 hr
Dec 10, 10:05 PM CST	Dense Fog Advisory	BIS	11 hr
Dec 17, 9:32 AM CST	Wind Advisory	BIS	10 hr
Dec 22, 4:26 AM CST	Dense Fog Advisory	BIS	19 hr
Dec 23, 6:04 PM CST	Dense Fog Advisory	BIS	8 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	5
Severe Thunderstorm Watch	3
Mesoscale Discussion	7
Special Weather Statement	15
Flooding
Areal Flood Warning	1
Winter
Blizzard Warning	2
Snow Squall Warning	1
Winter Storm Warning	1
Winter Storm Watch	4
Winter Weather Advisory	7
Cold
Freeze Warning	1
Wind Chill Warning	3
Freeze Watch	2
Wind Chill Advisory	5
Wind and dust
Wind Advisory	4
Fog and smoke
Dense Fog Advisory	16

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.