Alert archive / North Dakota / Dunn County
Weather alerts in Dunn County, North Dakota, 2014
149 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Dunn County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 149
- Warnings
- 39
- Watches
- 18
- Advisories
- 55
- Busiest month
- May31 alerts
- Busiest day
- May 27, 20149 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 4 tornado warnings covering Dunn County in 2014 had a tornado report inside them.
Dunn County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 17 | 10 | 41% | 6 | 100% | 14 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 2, 1:49 PM MST | Blizzard Watch | BIS | 13 hr |
| Jan 3, 2:41 AM MST | Blizzard Warning | BIS | 24 hr |
| Jan 4, 12:01 AM MST | Winter Weather Advisory | BIS | 3 hr |
| Jan 4, 2:50 AM MST | Wind Chill Warning | BIS | 66 hr |
| Jan 7, 2:31 PM MST | Wind Chill Advisory | BIS | 21 hr |
| Jan 11, 2:26 PM MST | Wind Advisory | BIS | 27 hr |
| Jan 12, 3:10 PM MST | High Wind Watch | BIS | 12 hr |
| Jan 13, 3:03 AM MST | High Wind Warning | BIS | 21 hr |
| Jan 13, 3:03 AM MST | Wind Advisory | BIS | 26 hr |
| Jan 14, 2:32 PM MST | High Wind Watch | BIS | 12 hr |
| Jan 15, 2:29 AM MST | High Wind Warning | BIS | 39 hr |
| Jan 17, 3:28 AM MST | Wind Advisory | BIS | 30 hr |
| Jan 20, 3:07 AM MST | Wind Advisory | BIS | 8 hr |
| Jan 20, 7:26 AM MST | High Wind Warning | BIS | 3 hr |
| Jan 22, 2:35 AM MST | Wind Chill Advisory | BIS | 33 hr |
| Jan 22, 2:39 PM MST | Wind Chill Warning | BIS | 21 hr |
| Jan 24, 3:07 AM MST | Wind Advisory | BIS | 17 hr |
| Jan 25, 2:14 AM MST | Blizzard Watch | BIS | 9 hr |
| Jan 25, 8:58 AM MST | High Wind Warning | BIS | 33 hr |
| Jan 25, 11:25 AM MST | Blizzard Warning | BIS | 32 hr |
| Jan 26, 2:58 PM MST | Wind Chill Advisory | BIS | 45 hr |
| Jan 30, 2:40 AM MST | Wind Chill Advisory | BIS | 32 hr |
| Feb 4, 1:36 PM MST | Wind Chill Advisory | BIS | 46 hr |
| Feb 6, 2:11 PM MST | Wind Chill Advisory | BIS | 19 hr |
| Feb 11, 2:28 PM MST | Winter Weather Advisory | BIS | 42 hr |
| Feb 12, 11:24 PM MST | Wind Advisory | BIS | 9 hr |
| Feb 14, 1:25 PM MST | Freezing Rain Advisory | BIS | 5 hr |
| Feb 24, 1:53 PM MST | Wind Chill Advisory | BIS | 19 hr |
| Feb 26, 2:15 PM MST | Wind Chill Advisory | BIS | 19 hr |
| Feb 28, 1:49 PM MST | Wind Chill Warning | BIS | 46 hr |
| Feb 28, 1:49 PM MST | Wind Chill Advisory | BIS | 46 hr |
| Mar 10, 2:47 PM MDT | Areal Flood Advisory | BIS | 144 days |
| Mar 18, 3:23 AM MDT | Dense Fog Advisory | BIS | 6 hr |
| Mar 20, 5:19 PM MDT | Special Weather Statement | BIS | 56 min |
| Mar 30, 3:21 AM MDT | Blizzard Warning | BIS | 45 hr |
| Mar 30, 3:21 AM MDT | Winter Storm Warning | BIS | 20 hr |
| Mar 30, 8:13 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 6, 10:48 PM MDT | Areal Flood Advisory | BIS | 35 hr |
| Apr 7, 8:57 AM MDT | Areal Flood Advisory | BIS | 48 hr |
| Apr 9, 1:51 AM MDT | Wind Advisory | BIS | 17 hr |
| Apr 26, 10:27 AM MDT | Wind Advisory | BIS | 32 hr |
| Apr 27, 10:05 PM MDT | Winter Weather Advisory | BIS | 11 hr |
| May 11, 2:56 PM MDT | Wind Advisory | BIS | 27 hr |
| May 13, 2:26 PM MDT | Freeze Warning | BIS | 18 hr |
| May 14, 2:37 PM MDT | Freeze Warning | BIS | 17 hr |
| May 18, 4:57 PM MDT | Mesoscale Discussion | SPC | 63 min |
| May 18, 5:12 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 18, 7:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| May 18, 9:43 PM MDT | Mesoscale Discussion | SPC | 62 min |
| May 20, 8:48 PM MDT | Frost Advisory | BIS | 10 hr |
| May 26, 6:59 PM MDT | Severe Thunderstorm Warning | BIS | 61 min |
| May 26, 7:14 PM MDT | Tornado Warning | BIS | 31 min |
| May 26, 7:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| May 26, 7:42 PM MDT | Tornado Warning | BIS | 33 min |
| May 26, 8:01 PM MDT | Severe Thunderstorm Warning | BIS | 59 min |
| May 26, 8:02 PM MDT | Severe Thunderstorm Warning | BIS | 58 min |
| May 26, 8:58 PM MDT | Severe Thunderstorm Warning | BIS | 62 min |
| May 26, 9:32 PM MDT | Tornado Warning | BIS | 28 min |
| May 26, 9:57 PM MDT | Severe Thunderstorm Warning | BIS | 63 min |
| May 28, 7:37 AM MDT | Special Weather Statement | BIS | 38 min |
| May 29, 2:15 PM MDT | Mesoscale Discussion | SPC | 60 min |
| May 29, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 4:20 PM MDT | Severe Thunderstorm Warning | BIS | 55 min |
| May 29, 5:25 PM MDT | Mesoscale Discussion | SPC | 65 min |
| May 29, 5:39 PM MDT | Special Weather Statement | BIS | 21 min |
| May 29, 6:01 PM MDT | Special Weather Statement | BIS | 44 min |
| May 29, 6:39 PM MDT | Special Weather Statement | BIS | 51 min |
| May 29, 7:03 PM MDT | Severe Thunderstorm Warning | BIS | 27 min |
| May 29, 7:33 PM MDT | Severe Thunderstorm Warning | BIS | 27 min |
| May 29, 7:47 PM MDT | Mesoscale Discussion | SPC | 58 min |
| May 29, 8:01 PM MDT | Special Weather Statement | BIS | 14 min |
| May 29, 8:33 PM MDT | Areal Flood Advisory | BIS | 6 hr |
| May 31, 5:28 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 1, 3:09 AM MDT | Flood Watch | BIS | 27 hr |
| Jun 6, 1:58 PM MDT | Frost Advisory | BIS | 18 hr |
| Jun 13, 2:59 AM MDT | Wind Advisory | BIS | 15 hr |
| Jun 16, 6:49 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 17, 4:37 PM MDT | Flash Flood Watch | BIS | 10 hr |
| Jun 18, 10:17 AM MDT | Flash Flood Watch | BIS | 16 hr |
| Jun 25, 4:00 PM MDT | Special Weather Statement | BIS | 45 min |
| Jun 25, 6:08 PM MDT | Special Weather Statement | BIS | 67 min |
| Jun 26, 1:46 PM MDT | Flash Flood Watch | BIS | 52 hr |
| Jun 26, 5:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 27, 12:09 AM MDT | Special Weather Statement | BIS | 21 min |
| Jun 27, 12:29 AM MDT | Special Weather Statement | BIS | 46 min |
| Jun 28, 4:42 AM MDT | Areal Flood Advisory | BIS | 15 hr |
| Jun 28, 5:53 AM MDT | Areal Flood Advisory | BIS | 9 hr |
| Jun 28, 9:12 AM MDT | Areal Flood Advisory | BIS | 11 hr |
| Jun 29, 1:49 AM MDT | Wind Advisory | BIS | 17 hr |
| Jun 30, 2:04 AM MDT | Wind Advisory | BIS | 16 hr |
| Jul 5, 4:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 6, 6:18 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 6, 6:36 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 6, 7:22 PM MDT | Tornado Warning | BIS | 23 min |
| Jul 6, 7:44 PM MDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 7, 3:48 PM MDT | Special Weather Statement | BIS | 27 min |
| Jul 21, 11:52 AM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 21, 12:09 PM MDT | Tornado Watch | SPC | 6 hr |
| Jul 21, 2:20 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jul 21, 2:27 PM MDT | Severe Thunderstorm Warning | BIS | 63 min |
| Jul 24, 2:27 AM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 3:59 AM MDT | Special Weather Statement | BIS | 31 min |
| Jul 24, 5:47 AM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 24, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 4:53 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jul 24, 7:03 PM MDT | High Wind Warning | BIS | 110 min |
| Jul 24, 7:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Aug 5, 6:49 AM MDT | Special Weather Statement | BIS | 41 min |
| Aug 5, 7:29 AM MDT | Special Weather Statement | BIS | 46 min |
| Aug 14, 1:02 PM MDT | Flash Flood Watch | BIS | 35 hr |
| Aug 15, 2:05 PM MDT | Areal Flood Advisory | BIS | 10 hr |
| Aug 15, 11:30 PM MDT | Areal Flood Warning | BIS | 42 hr |
| Aug 17, 1:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Aug 22, 2:50 PM MDT | Flood Watch | BIS | 34 hr |
| Aug 23, 12:30 PM MDT | Areal Flood Advisory | BIS | 24 hr |
| Aug 30, 2:12 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 30, 6:27 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 30, 7:12 PM MDT | Severe Thunderstorm Warning | BIS | 25 min |
| Aug 31, 6:50 PM MDT | Special Weather Statement | BIS | 40 min |
| Sep 3, 4:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Sep 3, 6:01 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 3, 7:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Sep 3, 8:06 PM MDT | Severe Thunderstorm Warning | BIS | 54 min |
| Sep 3, 8:29 PM MDT | Severe Thunderstorm Warning | BIS | 31 min |
| Sep 3, 8:31 PM MDT | Severe Thunderstorm Warning | BIS | 59 min |
| Sep 3, 8:58 PM MDT | Severe Thunderstorm Warning | BIS | 62 min |
| Sep 3, 10:07 PM MDT | Severe Thunderstorm Warning | BIS | 53 min |
| Sep 3, 11:02 PM MDT | Severe Thunderstorm Warning | BIS | 58 min |
| Sep 11, 2:21 AM MDT | Freeze Warning | BIS | 30 hr |
| Sep 13, 2:29 PM MDT | Frost Advisory | BIS | 18 hr |
| Sep 14, 1:57 PM MDT | Frost Advisory | BIS | 18 hr |
| Oct 2, 12:18 PM MDT | Wind Advisory | BIS | 30 hr |
| Oct 2, 8:40 PM MDT | Freeze Warning | BIS | 12 hr |
| Oct 3, 1:23 PM MDT | Freeze Warning | BIS | 19 hr |
| Oct 5, 2:40 AM MDT | Wind Advisory | BIS | 15 hr |
| Oct 15, 2:29 PM MDT | Wind Advisory | BIS | 27 hr |
| Nov 6, 12:24 PM MST | Wind Advisory | BIS | 35 hr |
| Nov 8, 3:13 AM MST | Winter Weather Advisory | BIS | 55 hr |
| Nov 15, 2:51 AM MST | Wind Chill Advisory | BIS | 5 hr |
| Nov 15, 1:42 PM MST | Winter Weather Advisory | BIS | 31 hr |
| Nov 22, 2:29 PM MST | Wind Advisory | BIS | 30 hr |
| Nov 25, 3:03 AM MST | Winter Weather Advisory | BIS | 24 hr |
| Nov 25, 2:34 PM MST | Wind Advisory | BIS | 4 hr |
| Nov 26, 2:58 PM MST | Winter Weather Advisory | BIS | 36 hr |
| Nov 26, 2:58 PM MST | Freezing Rain Advisory | BIS | 13 hr |
| Nov 29, 3:42 AM MST | Wind Chill Advisory | BIS | 55 hr |
| Dec 14, 9:57 AM MST | Freezing Rain Advisory | BIS | 25 hr |
| Dec 27, 3:31 PM MST | Wind Chill Advisory | BIS | 67 hr |
| Dec 30, 2:22 PM MST | Wind Chill Advisory | BIS | 12 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.