Alert archive / South Dakota / Pennington County
Weather alerts in Pennington County, South Dakota, 2016
289 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Pennington County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 289
- Warnings
- 129
- Watches
- 24
- Advisories
- 43
- Busiest month
- July88 alerts
- Busiest day
- July 3, 201616 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering Pennington County in 2016 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 4 minutes after it went out.
Pennington County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 1 | 100% | 4 min |
| Severe thunderstorm warnings | 103 | 82 | 20% | 88 | 91% | 22 min |
| Flash flood warnings | 2 | 2 | 0% | 2 | 100% | 125 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Rapid City, SD: tornado warnings | 11 | 3 | 73% | 10 | 50% | 4 min |
| NWS Rapid City, SD: severe thunderstorm warnings | 391 | 279 | 29% | 553 | 87% | 24 min |
| NWS Rapid City, SD: flash flood warnings | 6 | 5 | 17% | 7 | 100% | 88 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 7, 2:38 AM MST | Dense Fog Advisory | UNR | 8 hr |
| Jan 14, 2:39 AM MST | Winter Weather Advisory | UNR | 18 hr |
| Jan 19, 6:33 PM MST | Dense Fog Advisory | UNR | 8 hr |
| Jan 24, 2:31 AM MST | Winter Weather Advisory | UNR | 35 hr |
| Feb 5, 2:48 AM MST | High Wind Watch | UNR | 23 hr |
| Feb 5, 1:52 PM MST | High Wind Warning | UNR | 54 hr |
| Feb 11, 11:10 AM MST | Wind Advisory | UNR | 6 hr |
| Feb 12, 3:10 PM MST | Winter Weather Advisory | UNR | 31 hr |
| Feb 13, 1:46 PM MST | High Wind Warning | UNR | 5 hr |
| Feb 17, 2:02 PM MST | High Wind Watch | UNR | 14 hr |
| Feb 17, 2:02 PM MST | High Wind Warning | UNR | 49 hr |
| Feb 18, 12:21 AM MST | High Wind Warning | UNR | 39 hr |
| Feb 23, 7:38 PM MST | Wind Advisory | UNR | 21 hr |
| Feb 27, 4:04 PM MST | Wind Advisory | UNR | 19 hr |
| Feb 29, 12:06 PM MST | Mesoscale Discussion | SPC | 24 min |
| Mar 15, 2:27 PM MDT | Wind Advisory | UNR | 28 hr |
| Mar 21, 3:23 PM MDT | Winter Weather Advisory | UNR | 51 hr |
| Mar 22, 3:53 AM MDT | Winter Storm Warning | UNR | 32 hr |
| Mar 24, 7:17 PM MDT | Winter Weather Advisory | UNR | 27 hr |
| Mar 27, 2:35 PM MDT | Winter Storm Watch | UNR | 48 hr |
| Mar 29, 2:43 PM MDT | Winter Storm Warning | UNR | 19 hr |
| Mar 29, 2:43 PM MDT | Winter Weather Advisory | UNR | 19 hr |
| Mar 30, 9:58 AM MDT | Wind Advisory | UNR | 3 hr |
| Mar 30, 2:31 PM MDT | High Wind Warning | UNR | 29 hr |
| Mar 30, 2:31 PM MDT | Winter Weather Advisory | UNR | 15 hr |
| Apr 3, 5:39 AM MDT | Wind Advisory | UNR | 12 hr |
| Apr 4, 2:52 AM MDT | High Wind Watch | UNR | 25 hr |
| Apr 5, 3:40 AM MDT | High Wind Warning | UNR | 26 hr |
| Apr 6, 2:59 AM MDT | Wind Advisory | UNR | 16 hr |
| Apr 6, 2:45 PM MDT | Wind Advisory | UNR | 28 hr |
| Apr 14, 5:54 PM MDT | Special Weather Statement | UNR | 36 min |
| Apr 15, 2:47 PM MDT | Wind Advisory | UNR | 21 hr |
| Apr 16, 3:39 AM MDT | Winter Weather Advisory | UNR | 24 hr |
| Apr 25, 3:37 AM MDT | Winter Storm Watch | UNR | 24 hr |
| Apr 26, 3:32 AM MDT | Winter Storm Warning | UNR | 22 hr |
| Apr 27, 10:19 AM MDT | Winter Weather Advisory | UNR | 16 hr |
| Apr 29, 3:04 PM MDT | Winter Weather Advisory | UNR | 17 hr |
| May 13, 2:46 AM MDT | Freeze Warning | UNR | 29 hr |
| May 14, 2:40 PM MDT | Frost Advisory | UNR | 12 hr |
| May 20, 3:46 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| May 20, 4:16 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| May 20, 5:06 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| May 20, 5:30 PM MDT | Areal Flood Advisory | UNR | 6 hr |
| May 20, 5:48 PM MDT | Mesoscale Discussion | SPC | 87 min |
| May 20, 5:48 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| May 20, 6:38 PM MDT | Severe Thunderstorm Warning | UNR | 67 min |
| May 20, 7:00 PM MDT | Flash Flood Warning | UNR | 5 hr |
| May 20, 7:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 20, 11:56 PM MDT | Areal Flood Warning | UNR | 36 hr |
| May 25, 12:53 PM MDT | Special Weather Statement | UNR | 22 min |
| May 25, 1:03 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| May 25, 1:38 PM MDT | Special Weather Statement | UNR | 22 min |
| May 25, 1:49 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| May 25, 1:55 PM MDT | Special Weather Statement | UNR | 35 min |
| May 26, 2:31 PM MDT | Special Weather Statement | UNR | 44 min |
| May 26, 5:29 PM MDT | Special Weather Statement | UNR | 31 min |
| May 29, 3:56 PM MDT | Special Weather Statement | UNR | 34 min |
| May 30, 1:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 30, 2:11 PM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| May 30, 2:45 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| May 30, 5:21 PM MDT | Special Weather Statement | UNR | 84 min |
| May 30, 6:36 PM MDT | Special Weather Statement | UNR | 84 min |
| May 31, 1:52 AM MDT | Wind Advisory | UNR | 17 hr |
| Jun 2, 4:40 PM MDT | Special Weather Statement | UNR | 35 min |
| Jun 2, 5:01 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jun 8, 12:54 PM MDT | Areal Flood Advisory | UNR | 6 hr |
| Jun 8, 1:14 PM MDT | Areal Flood Advisory | UNR | 6 hr |
| Jun 9, 4:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jun 9, 8:50 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Jun 9, 9:32 PM MDT | Severe Thunderstorm Warning | UNR | 58 min |
| Jun 13, 12:45 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 13, 4:01 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jun 13, 4:26 PM MDT | Tornado Warning | UNR | 17 min |
| Jun 13, 4:34 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jun 13, 4:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jun 13, 5:14 PM MDT | Severe Thunderstorm Warning | UNR | 91 min |
| Jun 13, 6:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 14, 2:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 21, 2:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 3:46 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 5:48 PM MDT | Severe Thunderstorm Warning | UNR | 31 min |
| Jun 21, 7:00 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Jun 23, 8:45 PM MDT | Severe Thunderstorm Warning | UNR | 45 min |
| Jun 24, 2:31 PM MDT | Wind Advisory | UNR | 27 hr |
| Jun 24, 5:27 PM MDT | Special Weather Statement | UNR | 48 min |
| Jun 27, 6:46 PM MDT | Special Weather Statement | UNR | 29 min |
| Jun 28, 11:32 AM MDT | Mesoscale Discussion | SPC | 58 min |
| Jun 28, 1:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 2:55 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| Jun 28, 3:28 PM MDT | Special Weather Statement | UNR | 32 min |
| Jun 28, 3:44 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Jun 28, 4:01 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jun 28, 4:07 PM MDT | Severe Thunderstorm Warning | UNR | 24 min |
| Jun 28, 4:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jun 28, 4:35 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jun 28, 4:54 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Jun 29, 12:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jun 29, 2:43 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 4:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 4:32 PM MDT | Severe Thunderstorm Warning | UNR | 58 min |
| Jun 29, 5:11 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jun 29, 5:14 PM MDT | Special Weather Statement | UNR | 61 min |
| Jun 29, 6:03 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jun 29, 6:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 2, 10:29 AM MDT | Areal Flood Warning | UNR | 24 hr |
| Jul 3, 11:54 AM MDT | Special Weather Statement | UNR | 36 min |
| Jul 3, 12:10 PM MDT | Special Weather Statement | UNR | 35 min |
| Jul 3, 12:18 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jul 3, 12:43 PM MDT | Areal Flood Advisory | UNR | 2 hr |
| Jul 3, 12:52 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 3, 1:23 PM MDT | Severe Thunderstorm Warning | UNR | 52 min |
| Jul 3, 1:45 PM MDT | Special Weather Statement | UNR | 30 min |
| Jul 3, 2:26 PM MDT | Special Weather Statement | UNR | 49 min |
| Jul 3, 2:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 2:38 PM MDT | Severe Thunderstorm Warning | UNR | 32 min |
| Jul 3, 2:48 PM MDT | Areal Flood Warning | UNR | 6 hr |
| Jul 3, 3:14 PM MDT | Special Weather Statement | UNR | 31 min |
| Jul 3, 3:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 3, 3:50 PM MDT | Severe Thunderstorm Warning | UNR | 22 min |
| Jul 3, 4:04 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Jul 3, 4:46 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 4, 5:18 PM MDT | Special Weather Statement | UNR | 42 min |
| Jul 4, 5:57 PM MDT | Special Weather Statement | UNR | 63 min |
| Jul 4, 9:29 PM MDT | Special Weather Statement | UNR | 61 min |
| Jul 5, 9:17 PM MDT | Severe Thunderstorm Warning | UNR | 43 min |
| Jul 5, 9:52 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 6, 2:55 AM MDT | Severe Thunderstorm Warning | UNR | 35 min |
| Jul 6, 1:51 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 6, 2:21 PM MDT | Tornado Watch | SPC | 7 hr |
| Jul 6, 3:22 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 6, 3:34 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jul 6, 4:07 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Jul 6, 4:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 6, 4:30 PM MDT | Tornado Warning | UNR | 30 min |
| Jul 6, 4:40 PM MDT | Tornado Warning | UNR | 20 min |
| Jul 6, 4:47 PM MDT | Severe Thunderstorm Warning | UNR | 43 min |
| Jul 6, 4:58 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jul 6, 5:31 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 15, 3:16 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 15, 3:47 PM MDT | Flash Flood Warning | UNR | 118 min |
| Jul 15, 4:06 PM MDT | Special Weather Statement | UNR | 39 min |
| Jul 15, 4:12 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Jul 15, 4:48 PM MDT | Special Weather Statement | UNR | 27 min |
| Jul 15, 5:17 PM MDT | Severe Thunderstorm Warning | UNR | 28 min |
| Jul 15, 5:21 PM MDT | Areal Flood Advisory | UNR | 114 min |
| Jul 15, 5:46 PM MDT | Special Weather Statement | UNR | 29 min |
| Jul 16, 2:33 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 16, 2:53 PM MDT | Severe Thunderstorm Warning | UNR | 52 min |
| Jul 16, 3:10 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Jul 16, 3:44 PM MDT | Special Weather Statement | UNR | 31 min |
| Jul 16, 5:34 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Jul 16, 6:06 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Jul 18, 3:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 18, 4:44 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Jul 18, 5:12 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Jul 18, 5:41 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Jul 18, 5:46 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jul 18, 6:27 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jul 18, 7:19 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jul 19, 2:07 PM MDT | Heat Advisory | UNR | 29 hr |
| Jul 20, 5:43 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Jul 22, 4:42 AM MDT | Heat Advisory | UNR | 13 hr |
| Jul 25, 3:18 PM MDT | Severe Thunderstorm Warning | UNR | 27 min |
| Jul 26, 3:57 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jul 26, 4:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 27, 2:11 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 29, 1:32 PM MDT | Severe Thunderstorm Warning | UNR | 32 min |
| Jul 29, 2:37 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Jul 29, 2:48 PM MDT | Special Weather Statement | UNR | 42 min |
| Jul 29, 3:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 29, 3:15 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Jul 29, 3:43 PM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Jul 29, 5:03 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jul 30, 2:32 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 2:34 PM MDT | Special Weather Statement | UNR | 26 min |
| Jul 30, 3:03 PM MDT | Special Weather Statement | UNR | 27 min |
| Jul 30, 3:32 PM MDT | Special Weather Statement | UNR | 28 min |
| Jul 30, 3:41 PM MDT | Special Weather Statement | UNR | 34 min |
| Jul 30, 4:03 PM MDT | Special Weather Statement | UNR | 27 min |
| Jul 30, 7:38 PM MDT | Severe Thunderstorm Warning | UNR | 67 min |
| Jul 30, 7:45 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Jul 30, 8:26 PM MDT | Severe Thunderstorm Warning | UNR | 94 min |
| Jul 30, 8:32 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 30, 9:57 PM MDT | Severe Thunderstorm Warning | UNR | 78 min |
| Jul 31, 12:38 AM MDT | Special Weather Statement | UNR | 37 min |
| Jul 31, 1:59 AM MDT | Special Weather Statement | UNR | 46 min |
| Jul 31, 2:37 AM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 31, 12:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 31, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 31, 4:38 PM MDT | Special Weather Statement | UNR | 52 min |
| Jul 31, 4:42 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 5:47 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Jul 31, 7:46 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jul 31, 8:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 31, 10:28 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Aug 1, 2:27 PM MDT | Severe Thunderstorm Warning | UNR | 17 min |
| Aug 1, 2:52 PM MDT | Severe Thunderstorm Warning | UNR | 23 min |
| Aug 1, 3:08 PM MDT | Severe Thunderstorm Warning | UNR | 37 min |
| Aug 1, 3:12 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Aug 1, 3:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 2, 1:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 2, 6:46 PM MDT | Special Weather Statement | UNR | 29 min |
| Aug 2, 7:10 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 3, 5:16 PM MDT | Special Weather Statement | UNR | 44 min |
| Aug 8, 4:06 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Aug 8, 4:51 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Aug 8, 5:58 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Aug 8, 6:26 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Aug 8, 6:50 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Aug 8, 6:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 8, 7:29 PM MDT | Severe Thunderstorm Warning | UNR | 91 min |
| Aug 8, 7:40 PM MDT | Severe Thunderstorm Warning | UNR | 95 min |
| Aug 9, 3:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 9, 4:16 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 9, 5:02 PM MDT | Severe Thunderstorm Warning | UNR | 58 min |
| Aug 9, 5:36 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Aug 9, 6:30 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 10:57 PM MDT | Special Weather Statement | UNR | 33 min |
| Aug 10, 4:18 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Aug 10, 5:13 PM MDT | Severe Thunderstorm Warning | UNR | 23 min |
| Aug 11, 1:35 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 3:45 PM MDT | Severe Thunderstorm Warning | UNR | 45 min |
| Aug 11, 4:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 12, 2:15 PM MDT | Special Weather Statement | UNR | 30 min |
| Aug 12, 5:01 PM MDT | Special Weather Statement | UNR | 59 min |
| Aug 14, 2:24 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 4:00 PM MDT | Special Weather Statement | UNR | 30 min |
| Aug 14, 4:45 PM MDT | Severe Thunderstorm Warning | UNR | 75 min |
| Aug 14, 5:15 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 14, 8:04 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Aug 14, 8:13 PM MDT | Special Weather Statement | UNR | 47 min |
| Aug 14, 8:52 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Aug 14, 9:42 PM MDT | Severe Thunderstorm Warning | UNR | 79 min |
| Aug 14, 11:32 PM MDT | Special Weather Statement | UNR | 43 min |
| Aug 15, 2:25 PM MDT | Severe Thunderstorm Warning | UNR | 27 min |
| Aug 15, 2:30 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Aug 15, 3:12 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| Aug 15, 3:46 PM MDT | Severe Thunderstorm Warning | UNR | 22 min |
| Aug 17, 7:47 PM MDT | Special Weather Statement | UNR | 58 min |
| Aug 23, 2:43 AM MDT | Wind Advisory | UNR | 9 hr |
| Aug 26, 5:25 PM MDT | Special Weather Statement | UNR | 35 min |
| Aug 26, 5:44 PM MDT | Special Weather Statement | UNR | 46 min |
| Aug 26, 6:26 PM MDT | Special Weather Statement | UNR | 34 min |
| Aug 26, 7:08 PM MDT | Special Weather Statement | UNR | 37 min |
| Aug 26, 7:42 PM MDT | Special Weather Statement | UNR | 33 min |
| Aug 26, 11:26 PM MDT | Special Weather Statement | UNR | 64 min |
| Sep 3, 7:23 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Sep 4, 2:24 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 15, 3:12 PM MDT | Special Weather Statement | UNR | 48 min |
| Sep 23, 1:39 PM MDT | Wind Advisory | UNR | 50 hr |
| Sep 23, 2:21 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 23, 5:35 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Sep 23, 6:36 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Sep 23, 7:02 PM MDT | Severe Thunderstorm Warning | UNR | 43 min |
| Sep 23, 7:09 PM MDT | Severe Thunderstorm Warning | UNR | 51 min |
| Sep 23, 7:37 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Sep 23, 8:51 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Oct 3, 12:46 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Oct 3, 1:04 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Oct 3, 4:50 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Oct 5, 2:47 PM MDT | Frost Advisory | UNR | 18 hr |
| Oct 6, 2:54 PM MDT | Freeze Warning | UNR | 18 hr |
| Oct 17, 4:59 PM MDT | Special Weather Statement | UNR | 31 min |
| Oct 19, 2:02 PM MDT | Special Weather Statement | UNR | 43 min |
| Oct 31, 2:57 AM MDT | Wind Advisory | UNR | 15 hr |
| Nov 15, 2:01 PM MST | Winter Storm Watch | UNR | 37 hr |
| Nov 16, 2:45 PM MST | Winter Storm Warning | UNR | 42 hr |
| Nov 16, 2:45 PM MST | Winter Weather Advisory | UNR | 41 hr |
| Nov 26, 9:14 PM MST | Winter Storm Watch | UNR | 29 hr |
| Nov 27, 2:30 PM MST | Wind Advisory | UNR | 52 hr |
| Nov 27, 8:50 PM MST | Winter Storm Warning | UNR | 54 hr |
| Nov 28, 2:14 AM MST | Winter Weather Advisory | UNR | 57 hr |
| Nov 29, 2:48 AM MST | High Wind Warning | UNR | 13 hr |
| Dec 5, 3:13 AM MST | Wind Advisory | UNR | 15 hr |
| Dec 6, 2:54 PM MST | Wind Chill Advisory | UNR | 21 hr |
| Dec 7, 2:41 PM MST | Wind Chill Advisory | UNR | 20 hr |
| Dec 13, 2:02 PM MST | Winter Storm Watch | UNR | 47 hr |
| Dec 15, 2:49 AM MST | Winter Storm Warning | UNR | 47 hr |
| Dec 16, 9:07 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Dec 17, 1:42 AM MST | Wind Chill Warning | UNR | 33 hr |
| Dec 20, 2:38 PM MST | Wind Advisory | UNR | 23 hr |
| Dec 21, 1:54 PM MST | Blizzard Watch | UNR | 62 hr |
| Dec 21, 1:54 PM MST | Winter Storm Watch | UNR | 62 hr |
| Dec 23, 1:57 PM MST | Blizzard Warning | UNR | 3 days |
| Dec 23, 1:57 PM MST | Winter Storm Warning | UNR | 67 hr |
| Dec 25, 3:32 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Dec 25, 11:56 AM MST | Mesoscale Discussion | SPC | 5 hr |
| Dec 25, 5:33 PM MST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 10:39 AM MST | Winter Weather Advisory | UNR | 3 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 | 103 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 40 |
| Special Weather Statement | 53 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 7 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 13 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 7 |
| High Wind Watch | 3 |
| Wind Advisory | 17 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.