Alert archive / North Dakota / McLean County
Weather alerts in McLean County, North Dakota, 2014
55 weather alerts in 2014, 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 2014. Tap one for its archive.
- Alerts
- 55
- Warnings
- 12
- Watches
- 6
- Advisories
- 3
- Busiest month
- July23 alerts
- Busiest day
- July 21, 20148 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 McLean County in 2014 had a tornado report inside them.
McLean County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 11 | 11 | 0% | 8 | 100% | 23 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: tornado warnings | 31 | 1 | 97% | 14 | 21% | 2 min |
| NWS Bismarck, ND: severe thunderstorm warnings | 136 | 84 | 38% | 203 | 83% | 24 min |
| NWS Bismarck, ND: flash flood warnings | 7 | 2 | 71% | 7 | 43% | 86 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 20, 7:11 PM CDT | Special Weather Statement | BIS | 64 min |
| Mar 30, 9:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 19, 12:25 AM CDT | Special Weather Statement | BIS | 35 min |
| May 23, 3:37 AM CDT | Special Weather Statement | BIS | 23 min |
| May 26, 9:58 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| May 26, 11:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 29, 3:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 29, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 6:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 29, 8:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 29, 10:22 PM CDT | Severe Thunderstorm Warning | BIS | 23 min |
| May 29, 10:53 PM CDT | Special Weather Statement | BIS | 37 min |
| May 29, 11:04 PM CDT | Special Weather Statement | BIS | 56 min |
| Jun 4, 6:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 25, 8:37 PM CDT | Special Weather Statement | BIS | 53 min |
| Jun 25, 11:34 PM CDT | Special Weather Statement | BIS | 56 min |
| Jun 28, 10:12 AM CDT | Areal Flood Advisory | BIS | 11 hr |
| Jun 28, 1:15 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jul 6, 5:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 6, 7:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 6, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 6, 8:44 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 6, 9:36 PM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| Jul 6, 9:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 5:36 PM CDT | Special Weather Statement | BIS | 24 min |
| Jul 7, 5:37 PM CDT | Special Weather Statement | BIS | 23 min |
| Jul 21, 12:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 21, 1:09 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 21, 3:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 21, 4:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 21, 4:43 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| Jul 21, 4:46 PM CDT | Special Weather Statement | BIS | 59 min |
| Jul 21, 4:59 PM CDT | Tornado Warning | BIS | 31 min |
| Jul 21, 5:33 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jul 24, 2:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 3:27 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 6:47 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 24, 7:20 AM CDT | Special Weather Statement | BIS | 55 min |
| Jul 24, 8:15 AM CDT | Special Weather Statement | BIS | 60 min |
| Jul 24, 8:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 29, 4:27 PM CDT | Special Weather Statement | BIS | 63 min |
| Aug 16, 2:10 PM CDT | Areal Flood Advisory | BIS | 5 hr |
| Aug 17, 2:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 17, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 20, 7:22 PM CDT | Special Weather Statement | BIS | 38 min |
| Aug 30, 11:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Sep 3, 5:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Sep 3, 7:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 3, 8:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 3, 9:31 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Sep 3, 10:24 PM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Sep 3, 11:24 PM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Sep 4, 1:01 AM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Sep 4, 2:49 AM CDT | Severe Thunderstorm Warning | BIS | 56 min |
| Sep 20, 8:57 AM CDT | Special Weather Statement | BIS | 33 min |
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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 19 |
| Special Weather Statement | 15 |
| Flooding | |
| Areal Flood Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.