Alert archive / North Dakota / McHenry County

Weather alerts in McHenry County, North Dakota, 2022

153 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

McHenry County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 153
Warnings: 42
Watches: 20
Advisories: 62
Busiest month: July25 alerts
Busiest day: June 14, 20225 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering McHenry County in 2022 had a tornado report inside them.

McHenry County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	1	0	100%	0
Severe thunderstorm warnings	9	8	11%	8	100%	27 min
Flash flood warnings	0			0

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Bismarck, ND: tornado warnings	9	3	67%	9	56%	10 min
NWS Bismarck, ND: severe thunderstorm warnings	159	118	26%	291	88%	24 min
NWS Bismarck, ND: flash flood warnings	2	2	0%	3	100%	39 min

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 1, 11:59 AM CST	Wind Chill Advisory	BIS	24 hr
Jan 3, 2:03 PM CST	Winter Weather Advisory	BIS	43 hr
Jan 4, 3:13 AM CST	Wind Chill Warning	BIS	54 hr
Jan 6, 9:15 AM CST	Wind Chill Warning	BIS	27 hr
Jan 7, 11:42 AM CST	Wind Chill Advisory	BIS	3 hr
Jan 7, 8:53 PM CST	Winter Weather Advisory	BIS	24 hr
Jan 8, 2:10 PM CST	Wind Chill Warning	BIS	22 hr
Jan 9, 2:19 PM CST	Wind Chill Advisory	BIS	18 hr
Jan 12, 2:16 PM CST	Winter Storm Watch	BIS	24 hr
Jan 13, 3:12 AM CST	Winter Storm Warning	BIS	33 hr
Jan 13, 8:32 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 17, 1:48 PM CST	Winter Weather Advisory	BIS	34 hr
Jan 18, 3:11 PM CST	Wind Chill Advisory	BIS	45 hr
Jan 19, 2:27 AM CST	Wind Chill Warning	BIS	34 hr
Jan 20, 2:34 PM CST	Wind Advisory	BIS	31 hr
Jan 20, 9:35 PM CST	Winter Weather Advisory	BIS	14 hr
Jan 22, 2:59 AM CST	Wind Chill Advisory	BIS	6 hr
Jan 24, 2:52 AM CST	Wind Chill Warning	BIS	33 hr
Jan 24, 2:52 AM CST	Wind Chill Advisory	BIS	49 hr
Jan 26, 3:11 AM CST	Wind Advisory	BIS	19 hr
Jan 30, 1:38 PM CST	High Wind Watch	BIS	13 hr
Jan 31, 3:03 AM CST	High Wind Warning	BIS	30 hr
Feb 1, 3:38 AM CST	Blizzard Warning	BIS	8 hr
Feb 1, 5:47 AM CST	Wind Chill Advisory	BIS	3 days
Feb 2, 2:59 AM CST	Wind Chill Warning	BIS	33 hr
Feb 4, 11:44 AM CST	Wind Chill Advisory	BIS	9 hr
Feb 7, 2:39 PM CST	Wind Advisory	BIS	27 hr
Feb 10, 3:07 AM CST	Wind Advisory	BIS	16 hr
Feb 10, 10:21 PM CST	Wind Advisory	BIS	14 hr
Feb 11, 5:32 AM CST	Wind Chill Advisory	BIS	27 hr
Feb 12, 2:26 PM CST	Wind Chill Advisory	BIS	22 hr
Feb 13, 5:44 PM CST	Snow Squall Warning	BIS	61 min
Feb 13, 6:44 PM CST	Snow Squall Warning	BIS	46 min
Feb 16, 4:19 AM CST	Wind Chill Advisory	BIS	35 hr
Feb 16, 4:36 AM CST	High Wind Watch	BIS	33 hr
Feb 17, 12:58 PM CST	Winter Weather Advisory	BIS	29 hr
Feb 17, 1:07 PM CST	High Wind Warning	BIS	29 hr
Feb 18, 5:42 PM CST	Wind Chill Advisory	BIS	15 hr
Feb 20, 2:49 PM CST	Wind Chill Warning	BIS	69 hr
Feb 23, 2:11 PM CST	Wind Chill Warning	BIS	22 hr
Feb 24, 2:36 PM CST	Wind Chill Advisory	BIS	20 hr
Mar 1, 3:08 PM CST	Winter Weather Advisory	BIS	18 hr
Mar 4, 4:31 PM CST	Winter Weather Advisory	BIS	17 hr
Mar 7, 1:31 PM CST	Winter Weather Advisory	BIS	31 hr
Mar 9, 2:55 PM CST	Wind Chill Advisory	BIS	18 hr
Mar 10, 3:03 PM CST	Wind Chill Advisory	BIS	40 hr
Mar 10, 4:00 PM CST	Wind Advisory	BIS	5 hr
Mar 10, 6:38 PM CST	Winter Weather Advisory	BIS	9 hr
Mar 23, 2:12 PM CDT	Wind Advisory	BIS	53 hr
Mar 29, 2:33 PM CDT	River Flood Warning	BIS	10 days
Apr 5, 7:18 PM CDT	Wind Advisory	BIS	48 hr
Apr 9, 2:31 PM CDT	Winter Storm Watch	BIS	61 hr
Apr 11, 4:19 AM CDT	Blizzard Warning	BIS	4 days
Apr 12, 8:48 AM CDT	Mesoscale Discussion	SPC	4 hr
Apr 12, 1:41 PM CDT	Mesoscale Discussion	SPC	5 hr
Apr 13, 4:30 AM CDT	Mesoscale Discussion	SPC	4 hr
Apr 14, 6:42 PM CDT	Winter Weather Advisory	BIS	12 hr
Apr 16, 4:18 AM CDT	Winter Storm Watch	BIS	11 hr
Apr 16, 3:22 PM CDT	Winter Storm Warning	BIS	30 hr
Apr 17, 8:31 AM CDT	Mesoscale Discussion	SPC	3 hr
Apr 17, 1:25 PM CDT	Mesoscale Discussion	SPC	4 hr
Apr 19, 4:38 AM CDT	Wind Advisory	BIS	12 hr
Apr 20, 3:48 AM CDT	Winter Storm Watch	BIS	59 hr
Apr 22, 2:41 PM CDT	Winter Weather Advisory	BIS	52 hr
Apr 26, 1:56 PM CDT	River Flood Warning	BIS	7 days
May 4, 10:02 AM CDT	River Flood Warning	BIS	17 days
May 5, 9:44 AM CDT	River Flood Warning	BIS	13 days
May 7, 2:33 PM CDT	Mesoscale Discussion	SPC	117 min
May 12, 1:11 PM CDT	High Wind Watch	BIS	7 hr
May 12, 1:11 PM CDT	High Wind Warning	BIS	34 hr
May 12, 6:57 PM CDT	Special Weather Statement	BIS	33 min
May 14, 2:34 AM CDT	Wind Advisory	BIS	16 hr
May 19, 2:45 PM CDT	Freeze Watch	BIS	12 hr
May 20, 2:53 AM CDT	Freeze Warning	BIS	30 hr
May 21, 2:10 PM CDT	Frost Advisory	BIS	19 hr
May 22, 1:41 PM CDT	River Flood Warning	BIS	68 hr
May 30, 3:34 AM CDT	Wind Advisory	BIS	39 hr
Jun 13, 6:13 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 13, 7:37 PM CDT	Mesoscale Discussion	SPC	113 min
Jun 13, 8:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	58 min
Jun 13, 8:54 PM CDT	Severe Thunderstorm Warning	BIS	66 min
Jun 13, 9:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	66 min
Jun 14, 2:45 PM CDT	Wind Advisory	BIS	34 hr
Jun 18, 4:15 AM CDT	Heat Advisory	BIS	40 hr
Jun 20, 8:38 PM CDT	Special Weather Statement	BIS	52 min
Jun 23, 9:16 PM CDT	Special Weather Statement	BIS	59 min
Jun 24, 1:40 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jul 4, 6:08 PM CDT	Mesoscale Discussion	SPC	67 min
Jul 6, 4:40 PM CDT	Mesoscale Discussion	SPC	65 min
Jul 9, 2:28 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 10, 1:59 AM CDT	Mesoscale Discussion	SPC	91 min
Jul 10, 2:50 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 10, 4:13 AM CDT	Severe Thunderstorm Warning	BIS	62 min
Jul 10, 5:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	44 min
Jul 10, 4:48 PM CDT	Mesoscale Discussion	SPC	117 min
Jul 15, 5:49 AM CDT	Dense Fog Advisory	BIS	4 hr
Jul 18, 3:22 AM CDT	Heat Advisory	BIS	18 hr
Jul 18, 5:42 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 18, 7:58 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 18, 11:19 PM CDT	Mesoscale Discussion	SPC	116 min
Jul 19, 1:45 AM CDT	Severe Thunderstorm Warning	BIS	60 min
Jul 19, 2:34 AM CDT	Mesoscale Discussion	SPC	86 min
Jul 19, 2:57 AM CDT	Special Weather Statement	BIS	33 min
Jul 22, 6:19 PM CDT	Mesoscale Discussion	SPC	116 min
Jul 22, 7:27 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jul 22, 8:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	56 min
Jul 22, 9:12 PM CDT	Tornado Warning	BIS	33 min
Jul 22, 9:20 PM CDT	Mesoscale Discussion	SPC	115 min
Jul 22, 9:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	63 min
Jul 30, 5:52 PM CDT	Mesoscale Discussion	SPC	113 min
Jul 30, 10:18 PM CDT	Special Weather Statement	BIS	27 min
Jul 30, 10:46 PM CDT	Special Weather Statement	BIS	29 min
Aug 15, 5:07 AM CDT	Special Weather Statement	BIS	23 min
Aug 15, 5:23 PM CDT	Mesoscale Discussion	SPC	97 min
Aug 18, 12:59 AM CDT	Severe Thunderstorm Warning	BIS	61 min
Aug 18, 1:19 AM CDT	Mesoscale Discussion	SPC	116 min
Aug 23, 4:24 PM CDT	Mesoscale Discussion	SPC	96 min
Sep 10, 2:29 PM CDT	Frost Advisory	BIS	19 hr
Sep 21, 2:17 PM CDT	Frost Advisory	BIS	20 hr
Oct 5, 1:23 PM CDT	Freeze Watch	BIS	12 hr
Oct 6, 1:50 AM CDT	Freeze Warning	BIS	32 hr
Oct 11, 12:31 PM CDT	Wind Advisory	BIS	31 hr
Oct 11, 12:57 PM CDT	Fire Weather Watch	BIS	14 hr
Oct 12, 3:07 AM CDT	Red Flag Warning	BIS	17 hr
Oct 12, 10:13 AM CDT	Wind Advisory	BIS	34 hr
Oct 12, 10:42 AM CDT	Fire Weather Watch	BIS	9 hr
Oct 12, 7:59 PM CDT	Red Flag Warning	BIS	24 hr
Oct 13, 2:50 AM CDT	High Wind Warning	BIS	17 hr
Oct 23, 3:06 AM CDT	Wind Advisory	BIS	38 hr
Nov 5, 3:45 AM CDT	Wind Advisory	BIS	10 hr
Nov 5, 2:10 PM CDT	High Wind Warning	BIS	29 hr
Nov 7, 2:34 PM CST	Winter Storm Watch	BIS	37 hr
Nov 9, 4:03 AM CST	Winter Storm Warning	BIS	44 hr
Nov 9, 4:03 AM CST	Winter Weather Advisory	BIS	42 hr
Nov 10, 1:01 PM CST	Mesoscale Discussion	SPC	5 hr
Nov 12, 3:01 AM CST	Dense Fog Advisory	BIS	8 hr
Nov 16, 2:04 PM CST	Winter Weather Advisory	BIS	28 hr
Nov 18, 2:20 AM CST	Wind Advisory	BIS	18 hr
Nov 28, 12:32 PM CST	Wind Advisory	BIS	7 hr
Dec 2, 3:07 AM CST	Wind Chill Advisory	BIS	30 hr
Dec 6, 2:37 AM CST	Wind Chill Advisory	BIS	33 hr
Dec 9, 1:59 PM CST	Winter Storm Watch	BIS	62 hr
Dec 11, 3:55 AM CST	Dense Fog Advisory	BIS	8 hr
Dec 12, 3:42 AM CST	Winter Storm Warning	BIS	3 days
Dec 12, 3:42 AM CST	Winter Weather Advisory	BIS	24 hr
Dec 15, 12:05 PM CST	Blizzard Warning	BIS	33 hr
Dec 18, 3:30 AM CST	Wind Chill Watch	BIS	23 hr
Dec 19, 2:54 AM CST	Wind Chill Warning	BIS	5 days
Dec 21, 2:01 AM CST	Winter Weather Advisory	BIS	52 hr
Dec 23, 7:08 PM CST	Wind Chill Advisory	BIS	38 hr
Dec 24, 1:42 PM CST	Winter Weather Advisory	BIS	33 hr
Dec 26, 6:20 AM CST	Wind Chill Advisory	BIS	6 hr
Dec 28, 5:47 AM CST	Winter Weather Advisory	BIS	9 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	9
Tornado Warning	1
Severe Thunderstorm Watch	6
Mesoscale Discussion	22
Special Weather Statement	7
Flooding
River Flood Warning	5
Winter
Blizzard Warning	3
Snow Squall Warning	2
Winter Storm Warning	4
Winter Storm Watch	6
Winter Weather Advisory	17
Heat
Heat Advisory	2
Cold
Freeze Warning	2
Wind Chill Warning	9
Freeze Watch	2
Wind Chill Watch	1
Frost Advisory	3
Wind Chill Advisory	19
Wind and dust
High Wind Warning	5
High Wind Watch	3
Wind Advisory	18
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	3

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.