Alert archive / North Dakota / McLean County
Weather alerts in McLean County, North Dakota, 2024
79 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McLean County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 79
- Warnings
- 33
- Watches
- 15
- Advisories
- 0
- Busiest month
- July34 alerts
- Busiest day
- July 15, 20249 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
McLean County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 17 | 35% | 15 | 87% | 17 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: tornado warnings | 17 | 4 | 76% | 10 | 40% | 11 min |
| NWS Bismarck, ND: severe thunderstorm warnings | 212 | 149 | 30% | 316 | 86% | 24 min |
| NWS Bismarck, ND: flash flood warnings | 6 | 2 | 67% | 2 | 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 |
|---|---|---|---|
| Mar 3, 11:01 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Apr 4, 2:40 PM CDT | Fire Weather Watch | BIS | 13 hr |
| Apr 5, 3:14 AM CDT | Red Flag Warning | BIS | 16 hr |
| Apr 21, 2:48 AM CDT | Fire Weather Watch | BIS | 24 hr |
| Apr 22, 2:52 AM CDT | Red Flag Warning | BIS | 17 hr |
| May 17, 2:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 17, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 17, 5:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 29, 9:28 PM CDT | Special Weather Statement | BIS | 32 min |
| Jun 2, 3:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 3, 5:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 15, 4:35 PM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| Jun 15, 5:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 15, 7:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 15, 8:10 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 15, 11:15 PM CDT | Severe Thunderstorm Warning | BIS | 60 min |
| Jun 15, 11:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 16, 12:17 AM CDT | Severe Thunderstorm Warning | BIS | 43 min |
| Jun 17, 9:11 PM CDT | Special Weather Statement | BIS | 34 min |
| Jun 17, 9:29 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jun 27, 6:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 27, 7:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 8:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 28, 5:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 1, 2:13 AM CDT | Special Weather Statement | BIS | 32 min |
| Jul 1, 2:46 AM CDT | Special Weather Statement | BIS | 29 min |
| Jul 1, 3:21 AM CDT | Special Weather Statement | BIS | 39 min |
| Jul 1, 4:55 AM CDT | Special Weather Statement | BIS | 35 min |
| Jul 1, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 1, 4:39 PM CDT | Special Weather Statement | BIS | 36 min |
| Jul 1, 5:18 PM CDT | Special Weather Statement | BIS | 27 min |
| Jul 5, 8:44 PM CDT | Special Weather Statement | BIS | 31 min |
| Jul 12, 4:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 12, 6:46 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jul 12, 6:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 12, 7:27 PM CDT | Severe Thunderstorm Warning | BIS | 63 min |
| Jul 12, 7:28 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 12, 8:30 PM CDT | Severe Thunderstorm Warning | BIS | 60 min |
| Jul 12, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | 56 min |
| Jul 12, 10:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 4:59 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 14, 7:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 14, 9:32 PM CDT | Severe Thunderstorm Warning | BIS | 58 min |
| Jul 14, 9:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 14, 10:20 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Jul 14, 11:05 PM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| Jul 14, 11:11 PM CDT | Severe Thunderstorm Warning | BIS | 50 min |
| Jul 14, 11:33 PM CDT | Severe Thunderstorm Warning | BIS | 42 min |
| Jul 14, 11:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 12:10 AM CDT | Severe Thunderstorm Warning | BIS | 28 min |
| Jul 29, 4:26 PM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Jul 29, 4:26 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 29, 8:54 PM CDT | Severe Thunderstorm Warning | BIS | 51 min |
| Jul 30, 3:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 30, 4:37 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 30, 6:11 PM CDT | Severe Thunderstorm Warning | BIS | 49 min |
| Jul 30, 6:50 PM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| Jul 30, 7:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 6, 9:40 PM CDT | Special Weather Statement | BIS | 35 min |
| Aug 6, 9:49 PM CDT | Severe Thunderstorm Warning | BIS | 41 min |
| Aug 14, 11:35 AM CDT | Flash Flood Warning | BIS | 82 min |
| Aug 28, 4:41 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 29, 12:58 AM CDT | Severe Thunderstorm Warning | BIS | 47 min |
| Aug 29, 1:23 AM CDT | Severe Thunderstorm Warning | BIS | 52 min |
| Sep 16, 1:01 AM CDT | Severe Thunderstorm Warning | BIS | 44 min |
| Sep 16, 1:10 AM CDT | Severe Thunderstorm Warning | BIS | 50 min |
| Sep 16, 1:17 AM CDT | Severe Thunderstorm Warning | BIS | 43 min |
| Sep 16, 1:57 AM CDT | Severe Thunderstorm Warning | BIS | 63 min |
| Sep 16, 3:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 16, 3:12 AM CDT | Severe Thunderstorm Warning | BIS | 49 min |
| Sep 16, 4:48 AM CDT | Areal Flood Warning | BIS | 5 hr |
| Sep 16, 3:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 16, 7:06 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 28, 3:16 AM CDT | Fire Weather Watch | BIS | 11 hr |
| Sep 28, 2:29 PM CDT | Red Flag Warning | BIS | 53 hr |
| Oct 1, 2:51 AM CDT | Red Flag Warning | BIS | 16 hr |
| Oct 4, 1:02 PM CDT | Red Flag Warning | BIS | 32 hr |
| Dec 22, 9:13 AM CST | Mesoscale Discussion | SPC | 4 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 | 26 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 10 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.