Alert archive / South Dakota / Pennington County
Weather alerts in Pennington County, South Dakota, 2020
325 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 325
- Warnings
- 151
- Watches
- 40
- Advisories
- 50
- Busiest month
- July81 alerts
- Busiest day
- May 23, 202019 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 Pennington County in 2020 had a tornado report inside them.
Pennington County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 120 | 105 | 13% | 172 | 89% | 28 min |
| Flash flood warnings | 2 | 2 | 0% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Rapid City, SD: tornado warnings | 11 | 2 | 82% | 11 | 27% | 18 min |
| NWS Rapid City, SD: severe thunderstorm warnings | 415 | 336 | 19% | 828 | 89% | 27 min |
| NWS Rapid City, SD: flash flood warnings | 10 | 7 | 30% | 11 | 91% | 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 1, 2:06 PM MST | Winter Weather Advisory | UNR | 21 hr |
| Jan 3, 12:55 PM MST | Wind Advisory | UNR | 40 hr |
| Jan 6, 2:19 AM MST | Wind Advisory | UNR | 15 hr |
| Jan 9, 1:35 PM MST | Winter Weather Advisory | UNR | 17 hr |
| Jan 16, 2:50 AM MST | High Wind Watch | UNR | 24 hr |
| Jan 17, 2:22 AM MST | High Wind Warning | UNR | 24 hr |
| Jan 24, 8:30 AM MST | Dense Fog Advisory | UNR | 22 hr |
| Jan 30, 1:38 AM MST | Winter Weather Advisory | UNR | 15 hr |
| Jan 30, 1:46 AM MST | Wind Advisory | UNR | 18 hr |
| Jan 30, 9:30 AM MST | High Wind Warning | UNR | 12 hr |
| Jan 31, 1:46 PM MST | Winter Storm Watch | UNR | 37 hr |
| Feb 1, 2:27 PM MST | Winter Storm Warning | UNR | 57 hr |
| Feb 2, 2:37 AM MST | Winter Weather Advisory | UNR | 44 hr |
| Feb 5, 2:05 PM MST | Winter Weather Advisory | UNR | 39 hr |
| Feb 6, 2:20 AM MST | Winter Storm Warning | UNR | 27 hr |
| Feb 7, 2:15 PM MST | Winter Weather Advisory | UNR | 38 hr |
| Feb 8, 9:29 AM MST | Winter Storm Warning | UNR | 18 hr |
| Feb 11, 2:14 PM MST | Winter Weather Advisory | UNR | 23 hr |
| Feb 12, 1:38 AM MST | Wind Advisory | UNR | 11 hr |
| Feb 23, 2:27 AM MST | Winter Storm Watch | UNR | 12 hr |
| Feb 23, 2:01 PM MST | Winter Storm Warning | UNR | 48 hr |
| Feb 24, 2:28 AM MST | Winter Weather Advisory | UNR | 36 hr |
| Feb 25, 2:12 PM MST | Winter Storm Watch | UNR | 13 hr |
| Feb 26, 2:47 AM MST | Winter Weather Advisory | UNR | 32 hr |
| Mar 3, 1:50 AM MST | Wind Advisory | UNR | 15 hr |
| Mar 4, 1:19 PM MST | Wind Advisory | UNR | 9 hr |
| Mar 4, 3:51 PM MST | Mesoscale Discussion | SPC | 114 min |
| Mar 5, 2:00 PM MST | Fire Weather Watch | UNR | 36 hr |
| Mar 7, 2:19 AM MST | Red Flag Warning | UNR | 16 hr |
| Mar 12, 2:10 PM MDT | Winter Storm Watch | UNR | 13 hr |
| Mar 13, 3:13 AM MDT | Winter Storm Warning | UNR | 29 hr |
| Mar 13, 3:13 AM MDT | Winter Weather Advisory | UNR | 32 hr |
| Mar 18, 2:10 AM MDT | Winter Weather Advisory | UNR | 40 hr |
| Mar 25, 4:35 PM MDT | Dense Fog Advisory | UNR | 5 hr |
| Mar 31, 3:46 AM MDT | Winter Storm Watch | UNR | 24 hr |
| Mar 31, 4:32 AM MDT | Dense Fog Advisory | UNR | 3 hr |
| Mar 31, 2:05 PM MDT | Winter Weather Advisory | UNR | 58 hr |
| Apr 1, 3:48 AM MDT | Winter Storm Warning | UNR | 31 hr |
| Apr 5, 1:56 PM MDT | Fire Weather Watch | UNR | 15 hr |
| Apr 6, 4:30 AM MDT | Red Flag Warning | UNR | 38 hr |
| Apr 8, 2:36 AM MDT | Wind Advisory | UNR | 16 hr |
| Apr 9, 2:02 AM MDT | Winter Storm Watch | UNR | 37 hr |
| Apr 10, 2:35 PM MDT | Winter Storm Warning | UNR | 42 hr |
| Apr 10, 2:35 PM MDT | Winter Weather Advisory | UNR | 39 hr |
| Apr 20, 2:38 AM MDT | Wind Advisory | UNR | 15 hr |
| Apr 23, 2:21 PM MDT | Special Weather Statement | UNR | 54 min |
| Apr 23, 3:22 PM MDT | Special Weather Statement | UNR | 38 min |
| Apr 27, 1:44 PM MDT | Wind Advisory | UNR | 30 hr |
| Apr 28, 2:42 AM MDT | High Wind Warning | UNR | 17 hr |
| Apr 30, 8:24 PM MDT | Special Weather Statement | UNR | 51 min |
| Apr 30, 8:44 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| May 3, 1:32 PM MDT | Wind Advisory | UNR | 25 hr |
| May 3, 2:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 3, 3:05 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| May 3, 3:37 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| May 3, 4:14 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| May 3, 4:55 PM MDT | Special Weather Statement | UNR | 50 min |
| May 3, 5:04 PM MDT | Severe Thunderstorm Warning | UNR | 30 min |
| May 3, 5:15 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| May 3, 5:19 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| May 3, 6:07 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| May 3, 6:14 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| May 3, 6:44 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| May 8, 1:44 PM MDT | High Wind Watch | UNR | 6 hr |
| May 8, 1:44 PM MDT | Wind Advisory | UNR | 30 hr |
| May 15, 11:26 AM MDT | Special Weather Statement | UNR | 49 min |
| May 20, 1:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| May 20, 2:22 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 20, 5:42 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| May 20, 6:17 PM MDT | Severe Thunderstorm Warning | UNR | 43 min |
| May 23, 11:24 AM MDT | Flash Flood Watch | UNR | 10 hr |
| May 23, 12:41 PM MDT | Special Weather Statement | UNR | 34 min |
| May 23, 12:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| May 23, 1:15 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 1:44 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| May 23, 2:45 PM MDT | Severe Thunderstorm Warning | UNR | 45 min |
| May 23, 2:48 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| May 23, 2:54 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| May 23, 2:57 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 23, 3:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 23, 3:29 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| May 23, 3:58 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| May 23, 4:07 PM MDT | Severe Thunderstorm Warning | UNR | 23 min |
| May 23, 4:23 PM MDT | Special Weather Statement | UNR | 22 min |
| May 23, 4:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 23, 4:37 PM MDT | Severe Thunderstorm Warning | UNR | 50 min |
| May 23, 4:51 PM MDT | Flash Flood Warning | UNR | 5 hr |
| May 23, 5:20 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| May 23, 5:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 23, 6:04 PM MDT | Flash Flood Warning | UNR | 2 hr |
| May 31, 3:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 3:45 PM MDT | Severe Thunderstorm Warning | UNR | 25 min |
| May 31, 4:07 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 12:35 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 3, 12:41 PM MDT | Special Weather Statement | UNR | 49 min |
| Jun 3, 1:05 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 1:09 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Jun 3, 3:13 PM MDT | Special Weather Statement | UNR | 47 min |
| Jun 3, 3:32 PM MDT | Severe Thunderstorm Warning | UNR | 18 min |
| Jun 4, 12:44 AM MDT | Special Weather Statement | UNR | 61 min |
| Jun 4, 1:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 4, 2:27 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 4, 5:24 PM MDT | Special Weather Statement | UNR | 36 min |
| Jun 4, 5:55 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 4, 5:56 PM MDT | Severe Thunderstorm Warning | UNR | 79 min |
| Jun 4, 6:36 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jun 4, 7:07 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jun 4, 7:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jun 4, 8:29 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Jun 6, 2:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 6, 4:49 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 5:09 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Jun 6, 5:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 6, 5:56 PM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| Jun 6, 6:42 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jun 6, 6:45 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Jun 6, 7:28 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jun 6, 7:46 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jun 7, 5:55 PM MDT | Severe Thunderstorm Warning | UNR | 50 min |
| Jun 7, 8:40 PM MDT | Special Weather Statement | UNR | 35 min |
| Jun 9, 6:21 AM MDT | Wind Advisory | UNR | 13 hr |
| Jun 16, 8:12 PM MDT | Special Weather Statement | UNR | 48 min |
| Jun 20, 1:27 PM MDT | Special Weather Statement | UNR | 48 min |
| Jun 20, 2:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 20, 4:19 PM MDT | Special Weather Statement | UNR | 41 min |
| Jun 21, 1:05 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 12:58 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jun 28, 1:39 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 28, 5:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jun 28, 7:18 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Jun 28, 7:38 PM MDT | Severe Thunderstorm Warning | UNR | 67 min |
| Jun 28, 8:11 PM MDT | Severe Thunderstorm Warning | UNR | 15 min |
| Jun 28, 8:54 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Jun 29, 5:01 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jun 29, 6:05 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jun 29, 6:24 PM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Jun 29, 7:50 PM MDT | Special Weather Statement | UNR | 40 min |
| Jun 29, 7:54 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jun 29, 8:45 PM MDT | Special Weather Statement | UNR | 30 min |
| Jun 29, 8:59 PM MDT | Severe Thunderstorm Warning | UNR | 24 min |
| Jun 29, 9:03 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Jul 2, 11:59 AM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 2, 1:15 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 2, 1:20 PM MDT | Severe Thunderstorm Warning | UNR | 28 min |
| Jul 2, 2:06 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jul 2, 2:57 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jul 2, 2:59 PM MDT | Severe Thunderstorm Warning | UNR | 19 min |
| Jul 2, 3:25 PM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| Jul 2, 4:03 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jul 2, 4:27 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Jul 2, 4:56 PM MDT | Special Weather Statement | UNR | 34 min |
| Jul 2, 5:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 2, 5:16 PM MDT | Severe Thunderstorm Warning | UNR | 26 min |
| Jul 2, 5:47 PM MDT | Special Weather Statement | UNR | 28 min |
| Jul 3, 10:20 PM MDT | Severe Thunderstorm Warning | UNR | 28 min |
| Jul 5, 2:49 PM MDT | Severe Thunderstorm Warning | UNR | 26 min |
| Jul 5, 3:00 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 3:10 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Jul 5, 4:07 PM MDT | Severe Thunderstorm Warning | UNR | 68 min |
| Jul 5, 4:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 7:20 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Jul 5, 8:00 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Jul 5, 8:24 PM MDT | Severe Thunderstorm Warning | UNR | 32 min |
| Jul 5, 8:55 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 5, 9:42 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 6, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 5:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 6, 6:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jul 6, 7:11 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 6, 7:58 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jul 6, 8:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 6, 8:07 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 6, 8:56 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 6, 8:57 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jul 7, 5:28 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jul 7, 6:13 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 7, 6:18 PM MDT | Special Weather Statement | UNR | 42 min |
| Jul 7, 6:23 PM MDT | Severe Thunderstorm Warning | UNR | 67 min |
| Jul 7, 6:34 PM MDT | Special Weather Statement | UNR | 41 min |
| Jul 7, 6:46 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jul 7, 7:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 7, 7:07 PM MDT | Tornado Warning | UNR | 10 min |
| Jul 7, 7:55 PM MDT | Special Weather Statement | UNR | 50 min |
| Jul 9, 12:37 AM MDT | Special Weather Statement | UNR | 38 min |
| Jul 9, 12:41 AM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| Jul 9, 1:23 AM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jul 9, 1:27 AM MDT | Special Weather Statement | UNR | 48 min |
| Jul 9, 1:43 AM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Jul 9, 3:11 PM MDT | Special Weather Statement | UNR | 34 min |
| Jul 9, 3:53 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jul 9, 4:53 PM MDT | Special Weather Statement | UNR | 37 min |
| Jul 10, 12:56 AM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 10, 12:26 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 1:08 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 10, 2:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 3:59 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Jul 10, 4:26 PM MDT | Severe Thunderstorm Warning | UNR | 34 min |
| Jul 10, 4:52 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jul 10, 4:56 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jul 10, 5:25 PM MDT | Severe Thunderstorm Warning | UNR | 33 min |
| Jul 10, 5:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 10, 5:31 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 10, 5:41 PM MDT | Special Weather Statement | UNR | 49 min |
| Jul 13, 10:49 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jul 19, 4:06 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 6:31 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 19, 6:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 20, 11:16 AM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 20, 12:13 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 2:14 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Jul 20, 2:19 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 20, 2:42 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 20, 2:57 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 20, 3:01 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jul 20, 3:23 PM MDT | Special Weather Statement | UNR | 52 min |
| Jul 20, 5:01 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jul 24, 1:30 PM MDT | Severe Thunderstorm Warning | UNR | 45 min |
| Jul 27, 1:54 PM MDT | Flash Flood Watch | UNR | 56 hr |
| Jul 28, 4:09 PM MDT | Special Weather Statement | UNR | 51 min |
| Jul 28, 4:38 PM MDT | Special Weather Statement | UNR | 52 min |
| Jul 28, 5:20 PM MDT | Special Weather Statement | UNR | 55 min |
| Jul 31, 5:02 PM MDT | Special Weather Statement | UNR | 58 min |
| Aug 6, 5:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 7:31 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Aug 6, 9:11 PM MDT | Special Weather Statement | UNR | 49 min |
| Aug 7, 4:22 PM MDT | Severe Thunderstorm Warning | UNR | 37 min |
| Aug 7, 5:44 PM MDT | Special Weather Statement | UNR | 46 min |
| Aug 8, 1:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 8, 4:36 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Aug 8, 4:58 PM MDT | Severe Thunderstorm Warning | UNR | 32 min |
| Aug 8, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 5:19 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Aug 8, 5:28 PM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Aug 8, 5:49 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Aug 8, 6:16 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Aug 8, 6:45 PM MDT | Severe Thunderstorm Warning | UNR | 45 min |
| Aug 8, 7:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Aug 8, 8:27 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Aug 11, 5:42 PM MDT | Severe Thunderstorm Warning | UNR | 18 min |
| Aug 11, 5:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 6:34 PM MDT | Special Weather Statement | UNR | 26 min |
| Aug 11, 6:46 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Aug 11, 7:26 PM MDT | Severe Thunderstorm Warning | UNR | 26 min |
| Aug 11, 7:33 PM MDT | Special Weather Statement | UNR | 42 min |
| Aug 12, 3:40 AM MDT | Red Flag Warning | UNR | 40 hr |
| Aug 13, 6:57 PM MDT | Wind Advisory | UNR | 14 hr |
| Aug 23, 3:10 PM MDT | Special Weather Statement | UNR | 35 min |
| Aug 23, 3:23 PM MDT | Special Weather Statement | UNR | 22 min |
| Aug 23, 3:47 PM MDT | Special Weather Statement | UNR | 43 min |
| Aug 23, 4:05 PM MDT | Special Weather Statement | UNR | 25 min |
| Aug 23, 4:10 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Aug 23, 4:34 PM MDT | Special Weather Statement | UNR | 41 min |
| Aug 23, 4:35 PM MDT | Special Weather Statement | UNR | 40 min |
| Aug 25, 2:01 AM MDT | Heat Advisory | UNR | 17 hr |
| Aug 27, 4:07 AM MDT | Severe Thunderstorm Warning | UNR | 68 min |
| Aug 27, 4:42 AM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Aug 27, 4:45 AM MDT | Special Weather Statement | UNR | 45 min |
| Aug 27, 5:10 AM MDT | Special Weather Statement | UNR | 35 min |
| Aug 27, 5:48 AM MDT | Special Weather Statement | UNR | 42 min |
| Aug 27, 6:48 AM MDT | Special Weather Statement | UNR | 42 min |
| Aug 27, 4:52 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Aug 27, 5:31 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 7:00 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Aug 27, 7:11 PM MDT | Special Weather Statement | UNR | 64 min |
| Aug 27, 7:50 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Aug 27, 8:04 PM MDT | Severe Thunderstorm Warning | UNR | 41 min |
| Aug 27, 8:10 PM MDT | Severe Thunderstorm Warning | UNR | 80 min |
| Aug 27, 8:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Aug 27, 8:37 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Aug 27, 8:57 PM MDT | Special Weather Statement | UNR | 33 min |
| Aug 27, 9:01 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Aug 27, 9:29 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Aug 27, 10:54 PM MDT | Special Weather Statement | UNR | 51 min |
| Aug 29, 6:46 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Aug 29, 7:06 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Aug 29, 7:56 PM MDT | Special Weather Statement | UNR | 49 min |
| Aug 29, 8:14 PM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Aug 29, 8:43 PM MDT | Severe Thunderstorm Warning | UNR | 27 min |
| Aug 30, 2:23 AM MDT | Wind Advisory | UNR | 17 hr |
| Aug 30, 1:40 PM MDT | Fire Weather Watch | UNR | 48 hr |
| Sep 1, 2:59 AM MDT | Red Flag Warning | UNR | 42 hr |
| Sep 1, 1:51 PM MDT | Wind Advisory | UNR | 33 hr |
| Sep 3, 4:00 AM MDT | Fire Weather Watch | UNR | 33 hr |
| Sep 4, 12:56 PM MDT | Red Flag Warning | UNR | 54 hr |
| Sep 6, 2:21 AM MDT | Winter Storm Watch | UNR | 24 hr |
| Sep 7, 2:37 AM MDT | Winter Storm Warning | UNR | 28 hr |
| Sep 8, 1:51 PM MDT | Freeze Warning | UNR | 18 hr |
| Sep 12, 1:44 PM MDT | Fire Weather Watch | UNR | 24 hr |
| Sep 13, 2:03 PM MDT | Red Flag Warning | UNR | 30 hr |
| Sep 22, 2:03 PM MDT | Fire Weather Watch | UNR | 36 hr |
| Sep 24, 6:45 PM MDT | Wind Advisory | UNR | 7 hr |
| Sep 25, 1:58 PM MDT | Red Flag Warning | UNR | 27 hr |
| Sep 25, 2:00 PM MDT | Wind Advisory | UNR | 30 hr |
| Sep 26, 7:32 PM MDT | Wind Advisory | UNR | 23 hr |
| Sep 29, 1:34 PM MDT | Wind Advisory | UNR | 29 hr |
| Oct 9, 2:06 PM MDT | Red Flag Warning | UNR | 29 hr |
| Oct 11, 8:40 AM MDT | Wind Advisory | UNR | 8 hr |
| Oct 13, 2:45 AM MDT | High Wind Watch | UNR | 11 hr |
| Oct 13, 1:50 PM MDT | High Wind Warning | UNR | 28 hr |
| Oct 14, 6:02 PM MDT | Wind Advisory | UNR | 82 min |
| Oct 17, 2:43 AM MDT | Winter Weather Advisory | UNR | 27 hr |
| Oct 21, 2:29 PM MDT | Winter Weather Advisory | UNR | 24 hr |
| Oct 22, 2:42 PM MDT | Winter Storm Watch | UNR | 23 hr |
| Oct 23, 2:05 PM MDT | Winter Storm Warning | UNR | 44 hr |
| Oct 23, 2:05 PM MDT | Winter Weather Advisory | UNR | 47 hr |
| Oct 30, 2:30 AM MDT | High Wind Watch | UNR | 18 hr |
| Oct 30, 1:46 PM MDT | Wind Advisory | UNR | 28 hr |
| Oct 30, 8:04 PM MDT | High Wind Warning | UNR | 22 hr |
| Nov 12, 8:20 PM MST | High Wind Watch | UNR | 18 hr |
| Nov 13, 2:26 AM MST | High Wind Watch | UNR | 12 hr |
| Nov 13, 2:26 AM MST | High Wind Warning | UNR | 36 hr |
| Nov 13, 2:14 PM MST | High Wind Warning | UNR | 24 hr |
| Nov 13, 2:14 PM MST | Wind Advisory | UNR | 32 hr |
| Nov 17, 2:15 AM MST | High Wind Watch | UNR | 11 hr |
| Nov 17, 1:06 PM MST | High Wind Warning | UNR | 16 hr |
| Nov 30, 2:30 PM MST | Wind Advisory | UNR | 27 hr |
| Dec 11, 7:19 PM MST | Dense Fog Advisory | UNR | 14 hr |
| Dec 12, 9:04 AM MST | Dense Fog Advisory | UNR | 116 min |
| Dec 20, 1:57 AM MST | Wind Advisory | UNR | 17 hr |
| Dec 21, 1:43 PM MST | Winter Weather Advisory | UNR | 24 hr |
| Dec 21, 1:45 PM MST | High Wind Watch | UNR | 13 hr |
| Dec 22, 3:13 AM MST | High Wind Warning | UNR | 34 hr |
| Dec 22, 1:25 PM MST | Winter Storm Warning | UNR | 19 hr |
| Dec 22, 1:25 PM MST | Winter Weather Advisory | UNR | 28 hr |
| Dec 28, 3:06 AM MST | Winter Weather Advisory | UNR | 37 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 | 120 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 16 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 50 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 2 |
| Winter | |
| Winter Storm Warning | 10 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 19 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| High Wind Warning | 9 |
| High Wind Watch | 8 |
| Wind Advisory | 25 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.