Alert archive / Iowa / Shelby County
Weather alerts in Shelby County, Iowa, 2021
104 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Shelby County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 104
- Warnings
- 21
- Watches
- 17
- Advisories
- 35
- Busiest month
- February15 alerts
- Busiest day
- December 15, 20218 alerts
Over time
By month
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 |
|---|---|---|---|
| Jan 2, 8:28 AM CST | Dense Fog Advisory | OAX | 5 hr |
| Jan 2, 3:40 PM CST | Dense Fog Advisory | OAX | 19 hr |
| Jan 3, 2:38 PM CST | Dense Fog Advisory | OAX | 21 hr |
| Jan 13, 3:30 PM CST | Wind Advisory | OAX | 33 hr |
| Jan 13, 3:30 PM CST | Winter Storm Watch | OAX | 23 hr |
| Jan 14, 3:51 AM CST | Blizzard Warning | OAX | 35 hr |
| Jan 15, 2:10 PM CST | Winter Weather Advisory | OAX | 5 hr |
| Jan 24, 3:15 AM CST | Winter Storm Watch | OAX | 10 hr |
| Jan 24, 3:15 AM CST | Winter Storm Warning | OAX | 49 hr |
| Jan 25, 4:10 AM CST | Winter Weather Advisory | OAX | 29 hr |
| Jan 25, 10:41 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 3:26 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 31, 9:34 PM CST | Dense Fog Advisory | OAX | 38 hr |
| Feb 3, 3:12 AM CST | Winter Weather Advisory | OAX | 33 hr |
| Feb 4, 5:30 AM CST | Special Weather Statement | OAX | 75 min |
| Feb 6, 3:14 PM CST | Winter Weather Advisory | OAX | 37 hr |
| Feb 8, 5:35 AM CST | Wind Chill Advisory | OAX | 4 hr |
| Feb 8, 3:32 PM CST | Wind Chill Advisory | OAX | 18 hr |
| Feb 11, 2:16 PM CST | Wind Chill Advisory | OAX | 22 hr |
| Feb 12, 3:25 AM CST | Wind Chill Advisory | OAX | 33 hr |
| Feb 12, 2:13 PM CST | Wind Chill Watch | OAX | 37 hr |
| Feb 13, 3:28 AM CST | Wind Chill Advisory | OAX | 39 hr |
| Feb 14, 3:13 AM CST | Wind Chill Warning | OAX | 56 hr |
| Feb 19, 10:01 PM CST | Dense Fog Advisory | OAX | 14 hr |
| Feb 20, 3:09 PM CST | Winter Weather Advisory | OAX | 24 hr |
| Feb 21, 8:42 AM CST | Winter Storm Warning | OAX | 7 hr |
| Feb 21, 8:52 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 9, 2:33 PM CST | Wind Advisory | OAX | 27 hr |
| Mar 13, 3:25 PM CST | Wind Advisory | OAX | 27 hr |
| Mar 14, 6:20 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 16, 12:52 AM CDT | Dense Fog Advisory | OAX | 8 hr |
| Mar 21, 3:15 AM CDT | Wind Advisory | OAX | 14 hr |
| Mar 28, 3:17 AM CDT | Fire Weather Watch | OAX | 11 hr |
| Mar 28, 2:06 PM CDT | Red Flag Warning | OAX | 31 hr |
| Mar 28, 2:10 PM CDT | Wind Advisory | OAX | 30 hr |
| Mar 30, 3:38 AM CDT | Red Flag Warning | OAX | 16 hr |
| Apr 2, 3:29 AM CDT | Red Flag Warning | OAX | 17 hr |
| Apr 5, 2:08 AM CDT | Special Weather Statement | OAX | 52 min |
| Apr 5, 6:28 AM CDT | Special Weather Statement | OAX | 47 min |
| May 1, 10:01 AM CDT | Red Flag Warning | OAX | 10 hr |
| May 2, 11:18 PM CDT | Special Weather Statement | OAX | 42 min |
| May 2, 11:43 PM CDT | Special Weather Statement | OAX | 47 min |
| May 15, 1:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 19, 2:45 AM CDT | Dense Fog Advisory | OAX | 5 hr |
| Jun 11, 5:36 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 16, 3:06 PM CDT | Heat Advisory | OAX | 29 hr |
| Jun 16, 9:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 16, 10:05 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 16, 11:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 19, 11:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 19, 11:59 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 20, 3:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 22, 3:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 22, 6:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 23, 10:37 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 9, 2:29 AM CDT | Special Weather Statement | OAX | 31 min |
| Jul 9, 6:48 AM CDT | Special Weather Statement | OAX | 27 min |
| Jul 9, 9:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 9, 11:02 PM CDT | Severe Thunderstorm Warning | OAX | 29 min |
| Jul 9, 11:30 PM CDT | Severe Thunderstorm Warning | OAX | 45 min |
| Jul 10, 2:18 PM CDT | Severe Thunderstorm Warning | OAX | 42 min |
| Jul 10, 2:18 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 1:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 2:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 14, 5:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 26, 3:18 AM CDT | Heat Advisory | OAX | 4 days |
| Jul 30, 3:03 PM CDT | Flash Flood Watch | OAX | 14 hr |
| Jul 30, 8:12 PM CDT | Severe Thunderstorm Warning | OAX | 33 min |
| Aug 7, 6:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 3:02 AM CDT | Heat Advisory | OAX | 42 hr |
| Aug 20, 1:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 20, 4:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 23, 4:14 PM CDT | Heat Advisory | OAX | 28 hr |
| Aug 25, 4:07 AM CDT | Heat Advisory | OAX | 40 hr |
| Aug 26, 7:19 AM CDT | Severe Thunderstorm Warning | OAX | 26 min |
| Aug 26, 7:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 26, 7:42 AM CDT | Severe Thunderstorm Warning | OAX | 33 min |
| Aug 26, 5:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 26, 6:46 PM CDT | Special Weather Statement | OAX | 29 min |
| Aug 27, 6:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 28, 9:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 31, 3:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Sep 13, 9:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 30, 4:13 AM CDT | Areal Flood Advisory | OAX | 6 hr |
| Oct 15, 3:13 AM CDT | Frost Advisory | OAX | 30 hr |
| Oct 21, 3:12 AM CDT | Freeze Warning | OAX | 31 hr |
| Nov 10, 2:36 PM CST | Wind Advisory | OAX | 51 hr |
| Dec 5, 3:05 AM CST | Wind Advisory | OAX | 20 hr |
| Dec 9, 11:48 AM CST | Winter Weather Advisory | OAX | 37 hr |
| Dec 13, 2:49 AM CST | High Wind Watch | OAX | 24 hr |
| Dec 14, 2:20 AM CST | High Wind Warning | OAX | 44 hr |
| Dec 15, 12:28 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 15, 1:23 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 15, 3:55 PM CST | Severe Thunderstorm Warning | OAX | 80 min |
| Dec 15, 3:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Dec 15, 4:31 PM CST | Tornado Warning | OAX | 13 min |
| Dec 15, 4:37 PM CST | Tornado Warning | OAX | 23 min |
| Dec 15, 4:46 PM CST | Tornado Warning | OAX | 20 min |
| Dec 15, 4:55 PM CST | Tornado Warning | OAX | 14 min |
| Dec 15, 8:34 PM CST | Wind Advisory | OAX | 5 hr |
| Dec 24, 4:01 AM CST | Dense Fog Advisory | OAX | 7 hr |
| Dec 31, 3:30 AM CST | Dense Fog Advisory | OAX | 9 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 archive20202022
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. Rebuilt daily.