Alert archive / South Dakota / Pennington County
Weather alerts in Pennington County, South Dakota, 2018
265 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 265
- Warnings
- 101
- Watches
- 32
- Advisories
- 63
- Busiest month
- July59 alerts
- Busiest day
- July 22, 201814 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Pennington County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 75 | 63 | 16% | 99 | 90% | 24 min |
| Flash flood warnings | 6 | 5 | 17% | 10 | 80% | 26 min |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Rapid City, SD: tornado warnings | 18 | 6 | 67% | 14 | 64% | 18 min |
| NWS Rapid City, SD: severe thunderstorm warnings | 376 | 273 | 27% | 586 | 84% | 24 min |
| NWS Rapid City, SD: flash flood warnings | 13 | 8 | 38% | 16 | 69% | 42 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, 1:31 PM MST | Wind Chill Advisory | UNR | 19 hr |
| Jan 5, 2:36 AM MST | Dense Fog Advisory | UNR | 29 hr |
| Jan 9, 2:23 AM MST | Winter Weather Advisory | UNR | 47 hr |
| Jan 10, 3:31 PM MST | Special Weather Statement | UNR | 119 min |
| Jan 10, 7:26 PM MST | Wind Chill Advisory | UNR | 39 hr |
| Jan 14, 2:47 AM MST | Wind Chill Advisory | UNR | 55 hr |
| Jan 14, 2:47 AM MST | Winter Weather Advisory | UNR | 17 hr |
| Jan 20, 2:53 AM MST | Winter Weather Advisory | UNR | 35 hr |
| Feb 3, 3:52 AM MST | Winter Storm Warning | UNR | 27 hr |
| Feb 3, 3:52 AM MST | Winter Weather Advisory | UNR | 25 hr |
| Feb 6, 1:58 PM MST | Winter Storm Watch | UNR | 25 hr |
| Feb 7, 2:42 PM MST | Winter Weather Advisory | UNR | 49 hr |
| Feb 9, 3:04 PM MST | Wind Chill Advisory | UNR | 18 hr |
| Feb 15, 3:03 AM MST | Winter Weather Advisory | UNR | 15 hr |
| Feb 16, 2:11 PM MST | Winter Storm Watch | UNR | 48 hr |
| Feb 17, 1:55 PM MST | Winter Storm Warning | UNR | 64 hr |
| Feb 20, 1:45 PM MST | Wind Chill Advisory | UNR | 19 hr |
| Mar 2, 3:19 AM MST | Winter Storm Watch | UNR | 48 hr |
| Mar 3, 1:18 PM MST | Dense Fog Advisory | UNR | 22 hr |
| Mar 4, 3:22 AM MST | High Wind Warning | UNR | 41 hr |
| Mar 4, 3:22 AM MST | Winter Weather Advisory | UNR | 40 hr |
| Mar 5, 8:11 PM MST | Wind Advisory | UNR | 15 hr |
| Mar 10, 1:44 AM MST | Wind Advisory | UNR | 15 hr |
| Mar 14, 1:52 AM MDT | Winter Storm Watch | UNR | 37 hr |
| Mar 15, 3:21 AM MDT | Winter Storm Warning | UNR | 39 hr |
| Mar 15, 7:31 AM MDT | Dense Fog Advisory | UNR | 3 hr |
| Mar 15, 2:29 PM MDT | Winter Weather Advisory | UNR | 30 hr |
| Mar 18, 3:19 AM MDT | Winter Weather Advisory | UNR | 24 hr |
| Mar 24, 2:33 AM MDT | Winter Storm Watch | UNR | 36 hr |
| Mar 25, 2:41 AM MDT | Winter Storm Warning | UNR | 34 hr |
| Mar 25, 2:41 AM MDT | Winter Weather Advisory | UNR | 34 hr |
| Mar 30, 2:24 PM MDT | Wind Advisory | UNR | 14 hr |
| Apr 2, 3:14 AM MDT | Winter Weather Advisory | UNR | 30 hr |
| Apr 4, 2:32 AM MDT | Winter Storm Watch | UNR | 24 hr |
| Apr 5, 2:49 AM MDT | Winter Storm Warning | UNR | 33 hr |
| Apr 5, 2:49 AM MDT | Winter Weather Advisory | UNR | 33 hr |
| Apr 10, 2:45 PM MDT | Winter Storm Watch | UNR | 44 hr |
| Apr 12, 3:16 AM MDT | Blizzard Warning | UNR | 57 hr |
| Apr 12, 3:16 AM MDT | Winter Storm Warning | UNR | 35 hr |
| Apr 13, 3:52 AM MDT | Mesoscale Discussion | SPC | 6 hr |
| Apr 13, 2:27 PM MDT | Winter Weather Advisory | UNR | 4 hr |
| Apr 23, 3:39 AM MDT | Winter Weather Advisory | UNR | 26 hr |
| Apr 23, 2:09 PM MDT | Wind Advisory | UNR | 13 hr |
| May 5, 2:18 PM MDT | Special Weather Statement | UNR | 27 min |
| May 7, 5:24 PM MDT | Special Weather Statement | UNR | 51 min |
| May 11, 3:35 PM MDT | Dense Fog Advisory | UNR | 22 hr |
| May 14, 4:49 PM MDT | Special Weather Statement | UNR | 41 min |
| May 16, 6:26 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 16, 7:16 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| May 16, 8:12 PM MDT | Special Weather Statement | UNR | 33 min |
| May 16, 8:41 PM MDT | Special Weather Statement | UNR | 34 min |
| May 16, 9:12 PM MDT | Special Weather Statement | UNR | 33 min |
| May 17, 12:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| May 17, 1:23 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 17, 4:32 PM MDT | Severe Thunderstorm Warning | UNR | 58 min |
| May 17, 4:54 PM MDT | Mesoscale Discussion | SPC | 66 min |
| May 17, 5:24 PM MDT | Severe Thunderstorm Warning | UNR | 51 min |
| May 17, 7:11 PM MDT | Mesoscale Discussion | SPC | 64 min |
| May 18, 5:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| May 18, 5:28 PM MDT | Special Weather Statement | UNR | 47 min |
| May 18, 5:37 PM MDT | Severe Thunderstorm Warning | UNR | 34 min |
| May 18, 6:05 PM MDT | Special Weather Statement | UNR | 25 min |
| May 18, 6:15 PM MDT | Special Weather Statement | UNR | 45 min |
| May 18, 6:25 PM MDT | Areal Flood Advisory | UNR | 2 hr |
| May 18, 6:46 PM MDT | Flash Flood Warning | UNR | 2 hr |
| May 18, 7:05 PM MDT | Special Weather Statement | UNR | 40 min |
| May 18, 9:05 PM MDT | Areal Flood Warning | UNR | 16 hr |
| May 18, 9:16 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| May 22, 2:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 22, 3:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 22, 3:43 PM MDT | Flash Flood Warning | UNR | 3 hr |
| May 22, 4:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 7:29 PM MDT | Special Weather Statement | UNR | 46 min |
| May 23, 1:31 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 5:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 7:56 PM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| May 25, 2:12 PM MDT | Special Weather Statement | UNR | 33 min |
| May 27, 3:44 AM MDT | Flash Flood Watch | UNR | 23 hr |
| May 27, 5:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| May 27, 5:27 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 7:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 27, 9:11 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| May 27, 10:06 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| May 27, 10:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| May 28, 3:34 AM MDT | Flash Flood Watch | UNR | 24 hr |
| May 28, 11:36 PM MDT | Special Weather Statement | UNR | 39 min |
| May 29, 3:04 AM MDT | Flash Flood Watch | UNR | 21 hr |
| May 31, 3:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 5:43 PM MDT | Wind Advisory | UNR | 3 hr |
| Jun 2, 2:40 AM MDT | Wind Advisory | UNR | 15 hr |
| Jun 5, 5:43 PM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Jun 5, 5:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 6:28 PM MDT | Special Weather Statement | UNR | 47 min |
| Jun 5, 6:36 PM MDT | Special Weather Statement | UNR | 39 min |
| Jun 6, 11:33 PM MDT | Special Weather Statement | UNR | 27 min |
| Jun 7, 3:49 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 7, 5:50 PM MDT | Severe Thunderstorm Warning | UNR | 28 min |
| Jun 8, 1:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 8, 1:39 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 8, 2:24 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Jun 8, 3:24 PM MDT | Severe Thunderstorm Warning | UNR | 51 min |
| Jun 8, 4:10 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| Jun 8, 5:23 PM MDT | Severe Thunderstorm Warning | UNR | 51 min |
| Jun 8, 8:38 PM MDT | Severe Thunderstorm Warning | UNR | 43 min |
| Jun 10, 2:52 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 10, 5:35 PM MDT | Severe Thunderstorm Warning | UNR | 21 min |
| Jun 10, 5:36 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 10, 6:06 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jun 10, 6:19 PM MDT | Severe Thunderstorm Warning | UNR | 10 min |
| Jun 10, 6:52 PM MDT | Severe Thunderstorm Warning | UNR | 23 min |
| Jun 10, 7:52 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 10, 7:57 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jun 10, 8:37 PM MDT | Severe Thunderstorm Warning | UNR | 37 min |
| Jun 10, 8:53 PM MDT | Severe Thunderstorm Warning | UNR | 22 min |
| Jun 14, 1:58 PM MDT | Mesoscale Discussion | SPC | 62 min |
| Jun 14, 2:40 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 5:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 14, 7:22 PM MDT | Special Weather Statement | UNR | 53 min |
| Jun 18, 1:46 PM MDT | Flash Flood Watch | UNR | 51 hr |
| Jun 20, 6:04 AM MDT | Areal Flood Advisory | UNR | 6 hr |
| Jun 20, 11:46 AM MDT | Areal Flood Advisory | UNR | 9 hr |
| Jun 22, 12:29 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Jun 22, 12:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 22, 1:03 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jun 22, 1:37 PM MDT | Flash Flood Warning | UNR | 93 min |
| Jun 22, 1:49 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Jun 22, 2:12 PM MDT | Flood Watch | UNR | 54 hr |
| Jun 22, 2:39 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Jun 22, 3:44 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Jun 22, 5:09 PM MDT | Special Weather Statement | UNR | 51 min |
| Jun 23, 2:08 PM MDT | Special Weather Statement | UNR | 37 min |
| Jun 23, 5:10 PM MDT | Special Weather Statement | UNR | 35 min |
| Jun 24, 7:02 PM MDT | Areal Flood Warning | UNR | 11 hr |
| Jun 26, 11:12 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 27, 1:18 AM MDT | Mesoscale Discussion | SPC | 87 min |
| Jun 29, 1:06 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 29, 2:29 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 29, 5:08 PM MDT | Severe Thunderstorm Warning | UNR | 52 min |
| Jun 29, 5:15 PM MDT | Severe Thunderstorm Warning | UNR | 60 min |
| Jun 29, 6:02 PM MDT | Severe Thunderstorm Warning | UNR | 58 min |
| Jun 29, 6:12 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jun 30, 3:23 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| Jul 3, 4:42 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 6:01 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 3, 8:23 PM MDT | Severe Thunderstorm Warning | UNR | 67 min |
| Jul 3, 8:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 9:18 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jul 3, 10:13 PM MDT | Severe Thunderstorm Warning | UNR | 47 min |
| Jul 3, 10:48 PM MDT | Severe Thunderstorm Warning | UNR | 72 min |
| Jul 3, 11:38 PM MDT | Special Weather Statement | UNR | 37 min |
| Jul 6, 2:00 PM MDT | Heat Advisory | UNR | 53 hr |
| Jul 9, 4:12 AM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 9, 4:38 AM MDT | Severe Thunderstorm Warning | UNR | 35 min |
| Jul 9, 4:41 AM MDT | Mesoscale Discussion | SPC | 64 min |
| Jul 9, 6:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 14, 4:05 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Jul 16, 2:52 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 16, 4:25 PM MDT | Severe Thunderstorm Warning | UNR | 22 min |
| Jul 17, 3:02 AM MDT | Flash Flood Watch | UNR | 20 hr |
| Jul 17, 12:44 PM MDT | Severe Thunderstorm Warning | UNR | 29 min |
| Jul 17, 2:16 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 17, 2:57 PM MDT | Severe Thunderstorm Warning | UNR | 63 min |
| Jul 17, 3:09 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 3:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jul 17, 3:43 PM MDT | Flash Flood Warning | UNR | 3 hr |
| Jul 17, 3:58 PM MDT | Special Weather Statement | UNR | 47 min |
| Jul 17, 5:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 17, 8:07 PM MDT | Areal Flood Warning | UNR | 18 hr |
| Jul 18, 2:35 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jul 18, 2:43 PM MDT | Tornado Watch | SPC | 7 hr |
| Jul 18, 3:12 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jul 18, 4:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 20, 1:31 PM MDT | Flash Flood Watch | UNR | 35 hr |
| Jul 21, 4:11 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 5:18 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jul 21, 5:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jul 21, 6:13 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jul 21, 6:45 PM MDT | Severe Thunderstorm Warning | UNR | 30 min |
| Jul 21, 6:50 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| Jul 21, 7:01 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 21, 7:16 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| Jul 21, 7:23 PM MDT | Flash Flood Warning | UNR | 3 hr |
| Jul 21, 7:59 PM MDT | Flash Flood Warning | UNR | 3 hr |
| Jul 21, 8:06 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Jul 21, 8:18 PM MDT | Special Weather Statement | UNR | 42 min |
| Jul 21, 8:40 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jul 21, 9:02 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| Jul 21, 9:04 PM MDT | Special Weather Statement | UNR | 41 min |
| Jul 22, 12:18 AM MDT | Areal Flood Warning | UNR | 14 hr |
| Jul 22, 2:52 AM MDT | Areal Flood Warning | UNR | 11 hr |
| Jul 24, 8:52 PM MDT | Severe Thunderstorm Warning | UNR | 38 min |
| Jul 24, 9:28 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jul 26, 9:08 PM MDT | Severe Thunderstorm Warning | UNR | 22 min |
| Jul 27, 4:44 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Jul 27, 4:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 5:06 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Jul 29, 1:34 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 3:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jul 29, 3:57 PM MDT | Special Weather Statement | UNR | 33 min |
| Jul 29, 4:00 PM MDT | Areal Flood Advisory | UNR | 5 hr |
| Jul 29, 4:07 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Aug 3, 4:35 PM MDT | Severe Thunderstorm Warning | UNR | 40 min |
| Aug 3, 7:29 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| Aug 3, 8:24 PM MDT | Severe Thunderstorm Warning | UNR | 66 min |
| Aug 4, 2:42 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Aug 4, 2:43 PM MDT | Special Weather Statement | UNR | 17 min |
| Aug 4, 2:52 PM MDT | Severe Thunderstorm Warning | UNR | 19 min |
| Aug 6, 12:21 PM MDT | Special Weather Statement | UNR | 54 min |
| Aug 6, 2:17 PM MDT | Special Weather Statement | UNR | 43 min |
| Aug 6, 3:24 PM MDT | Special Weather Statement | UNR | 51 min |
| Aug 6, 3:34 PM MDT | Severe Thunderstorm Warning | UNR | 31 min |
| Aug 18, 1:45 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 23, 2:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 23, 2:44 PM MDT | Special Weather Statement | UNR | 46 min |
| Aug 23, 2:59 PM MDT | Special Weather Statement | UNR | 46 min |
| Aug 23, 3:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Aug 23, 3:38 PM MDT | Severe Thunderstorm Warning | UNR | 37 min |
| Aug 23, 4:07 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Aug 23, 4:33 PM MDT | Severe Thunderstorm Warning | UNR | 27 min |
| Aug 23, 4:59 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Aug 23, 5:29 PM MDT | Severe Thunderstorm Warning | UNR | 29 min |
| Aug 27, 2:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 27, 4:19 PM MDT | Severe Thunderstorm Warning | UNR | 56 min |
| Sep 1, 2:08 AM MDT | Special Weather Statement | UNR | 37 min |
| Sep 1, 10:59 PM MDT | Special Weather Statement | UNR | 46 min |
| Sep 8, 4:07 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 9, 1:21 PM MDT | Severe Thunderstorm Warning | UNR | 39 min |
| Sep 9, 1:56 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Sep 9, 2:33 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Sep 25, 2:21 AM MDT | Wind Advisory | UNR | 16 hr |
| Sep 25, 1:32 PM MDT | Frost Advisory | UNR | 18 hr |
| Sep 27, 2:39 AM MDT | Winter Weather Advisory | UNR | 30 hr |
| Oct 3, 3:29 AM MDT | Freeze Watch | UNR | 11 hr |
| Oct 3, 3:29 AM MDT | Wind Advisory | UNR | 15 hr |
| Oct 3, 2:18 PM MDT | Freeze Warning | UNR | 18 hr |
| Oct 4, 2:13 PM MDT | Winter Storm Watch | UNR | 48 hr |
| Oct 6, 2:28 PM MDT | Winter Weather Advisory | UNR | 61 hr |
| Oct 13, 8:16 AM MDT | Winter Weather Advisory | UNR | 18 hr |
| Oct 27, 2:26 AM MDT | Wind Advisory | UNR | 16 hr |
| Oct 29, 9:35 AM MDT | Wind Advisory | UNR | 9 hr |
| Oct 31, 2:31 PM MDT | Wind Advisory | UNR | 28 hr |
| Nov 2, 2:44 AM MDT | Winter Weather Advisory | UNR | 34 hr |
| Nov 2, 2:39 PM MDT | Wind Advisory | UNR | 23 hr |
| Nov 2, 7:03 PM MDT | High Wind Warning | UNR | 15 hr |
| Nov 5, 8:17 AM MST | Wind Advisory | UNR | 7 hr |
| Nov 6, 2:40 AM MST | Wind Advisory | UNR | 13 hr |
| Nov 10, 2:31 AM MST | Wind Advisory | UNR | 12 hr |
| Nov 15, 2:22 AM MST | Wind Advisory | UNR | 13 hr |
| Nov 16, 2:23 AM MST | Wind Advisory | UNR | 17 hr |
| Nov 16, 8:40 PM MST | Winter Weather Advisory | UNR | 8 hr |
| Nov 23, 2:25 PM MST | Winter Weather Advisory | UNR | 36 hr |
| Nov 23, 7:14 PM MST | Winter Storm Warning | UNR | 23 hr |
| Nov 28, 1:36 PM MST | Winter Storm Watch | UNR | 38 hr |
| Nov 29, 2:01 PM MST | Winter Storm Warning | UNR | 66 hr |
| Nov 30, 3:24 AM MST | Winter Weather Advisory | UNR | 48 hr |
| Dec 12, 2:41 AM MST | Winter Weather Advisory | UNR | 17 hr |
| Dec 12, 2:44 AM MST | High Wind Warning | UNR | 18 hr |
| Dec 18, 2:36 AM MST | High Wind Watch | UNR | 12 hr |
| Dec 18, 2:18 PM MST | Wind Advisory | UNR | 27 hr |
| Dec 21, 2:47 AM MST | Wind Advisory | UNR | 13 hr |
| Dec 22, 2:43 AM MST | Wind Advisory | UNR | 14 hr |
| Dec 25, 2:50 AM MST | Winter Weather Advisory | UNR | 3 days |
| Dec 29, 2:19 PM MST | Winter Weather Advisory | UNR | 51 hr |
| Dec 30, 3:10 AM MST | Winter Storm Warning | UNR | 35 hr |
| Dec 31, 3:54 AM MST | Blizzard Warning | UNR | 6 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 | 75 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 35 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 6 |
| Flash Flood Watch | 6 |
| Flood Watch | 1 |
| Areal Flood Advisory | 8 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 9 |
| Winter Storm Watch | 9 |
| Winter Weather Advisory | 24 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 1 |
| Wind Advisory | 20 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.