Alert archive / Iowa / Johnson County
Weather alerts in Johnson County, Iowa, 2022
121 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Johnson County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 121
- Warnings
- 30
- Watches
- 11
- Advisories
- 37
- Busiest month
- July16 alerts
- Busiest day
- March 6, 20226 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 1, 3:12 AM CST | Wind Chill Advisory | DVN | 33 hr |
| Jan 1, 2:27 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 4, 3:08 AM CST | Winter Weather Advisory | DVN | 39 hr |
| Jan 5, 3:08 AM CST | Wind Chill Advisory | DVN | 36 hr |
| Jan 6, 2:02 AM CST | Wind Chill Advisory | DVN | 31 hr |
| Jan 7, 2:05 PM CST | Winter Weather Advisory | DVN | 34 hr |
| Jan 12, 2:33 PM CST | Winter Storm Watch | DVN | 24 hr |
| Jan 13, 2:47 PM CST | Winter Storm Warning | DVN | 44 hr |
| Jan 13, 2:47 PM CST | Winter Weather Advisory | DVN | 44 hr |
| Jan 19, 2:13 AM CST | Wind Chill Advisory | DVN | 34 hr |
| Jan 20, 2:12 PM CST | Wind Chill Advisory | DVN | 20 hr |
| Jan 24, 3:07 AM CST | Wind Chill Advisory | DVN | 57 hr |
| Feb 16, 3:30 AM CST | Winter Weather Advisory | DVN | 39 hr |
| Feb 18, 7:40 PM CST | Special Weather Statement | DVN | 65 min |
| Feb 18, 8:38 PM CST | Snow Squall Warning | DVN | 52 min |
| Feb 21, 2:48 AM CST | Winter Weather Advisory | DVN | 39 hr |
| Feb 22, 7:22 AM CST | Special Weather Statement | DVN | 38 min |
| Feb 23, 2:55 PM CST | Winter Weather Advisory | DVN | 36 hr |
| Mar 5, 3:27 AM CST | Wind Advisory | DVN | 27 hr |
| Mar 5, 10:43 AM CST | Special Weather Statement | DVN | 47 min |
| Mar 5, 5:33 PM CST | Mesoscale Discussion | SPC | 117 min |
| Mar 5, 6:10 PM CST | Tornado Watch | SPC | 4 hr |
| Mar 5, 6:55 PM CST | Severe Thunderstorm Warning | DVN | 35 min |
| Mar 5, 7:34 PM CST | Severe Thunderstorm Warning | DVN | 26 min |
| Mar 5, 7:43 PM CST | Severe Thunderstorm Warning | DVN | 47 min |
| Mar 5, 7:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Mar 6, 3:05 PM CST | Winter Weather Advisory | DVN | 21 hr |
| Mar 25, 3:10 AM CDT | Wind Advisory | DVN | 19 hr |
| Apr 13, 2:26 PM CDT | Wind Advisory | DVN | 29 hr |
| Apr 14, 10:35 AM CDT | High Wind Warning | DVN | 8 hr |
| Apr 21, 9:10 PM CDT | River Flood Watch | DVN | 4 days |
| Apr 22, 3:07 AM CDT | Flood Watch | DVN | 12 hr |
| Apr 22, 11:11 AM CDT | Flash Flood Warning | DVN | 6 hr |
| Apr 22, 12:05 PM CDT | Flash Flood Warning | DVN | 81 min |
| Apr 22, 1:47 PM CDT | Special Weather Statement | DVN | 43 min |
| Apr 23, 3:04 AM CDT | Wind Advisory | DVN | 16 hr |
| Apr 23, 9:35 AM CDT | River Flood Warning | DVN | 4 hr |
| Apr 25, 3:02 AM CDT | Freeze Warning | DVN | 29 hr |
| Apr 26, 2:39 PM CDT | Frost Advisory | DVN | 17 hr |
| Apr 30, 2:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 9, 6:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 9, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 11, 10:08 AM CDT | Heat Advisory | DVN | 11 hr |
| May 12, 2:48 AM CDT | Heat Advisory | DVN | 17 hr |
| May 25, 6:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 25, 7:20 PM CDT | Tornado Warning | DVN | 25 min |
| May 26, 4:39 PM CDT | Special Weather Statement | DVN | 36 min |
| May 31, 1:23 AM CDT | Special Weather Statement | DVN | 67 min |
| Jun 6, 3:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 2:40 PM CDT | Heat Advisory | DVN | 3 days |
| Jun 13, 7:44 AM CDT | Special Weather Statement | DVN | 31 min |
| Jun 14, 2:58 AM CDT | Excessive Heat Warning | DVN | 41 hr |
| Jun 15, 5:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 15, 6:21 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 20, 2:16 PM CDT | Heat Advisory | DVN | 29 hr |
| Jun 21, 5:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 25, 1:30 AM CDT | Special Weather Statement | DVN | 60 min |
| Jun 25, 2:30 AM CDT | Special Weather Statement | DVN | 60 min |
| Jun 25, 3:19 AM CDT | Flash Flood Warning | DVN | 4 hr |
| Jun 25, 2:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 4, 3:30 AM CDT | Heat Advisory | DVN | 34 hr |
| Jul 4, 9:48 AM CDT | Special Weather Statement | DVN | 42 min |
| Jul 5, 1:09 PM CDT | Excessive Heat Warning | DVN | 7 hr |
| Jul 5, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 8:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 9:02 PM CDT | Special Weather Statement | DVN | 58 min |
| Jul 5, 9:24 PM CDT | Severe Thunderstorm Warning | DVN | 51 min |
| Jul 7, 5:38 PM CDT | Special Weather Statement | DVN | 112 min |
| Jul 8, 10:32 AM CDT | Flash Flood Warning | DVN | 4 hr |
| Jul 11, 5:25 AM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 11, 5:26 AM CDT | Special Weather Statement | DVN | 49 min |
| Jul 11, 5:40 AM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Jul 11, 5:43 AM CDT | Severe Thunderstorm Warning | DVN | 62 min |
| Jul 22, 3:26 AM CDT | Heat Advisory | DVN | 41 hr |
| Jul 22, 10:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 23, 2:05 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 11:41 PM CDT | Special Weather Statement | DVN | 34 min |
| Aug 1, 12:17 AM CDT | Special Weather Statement | DVN | 43 min |
| Aug 1, 12:36 AM CDT | Severe Thunderstorm Warning | DVN | 24 min |
| Aug 2, 2:44 AM CDT | Heat Advisory | DVN | 17 hr |
| Aug 2, 4:23 AM CDT | Special Weather Statement | DVN | 52 min |
| Aug 2, 5:11 AM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Aug 3, 10:46 AM CDT | Special Weather Statement | DVN | 44 min |
| Aug 5, 2:46 AM CDT | Heat Advisory | DVN | 42 hr |
| Aug 6, 12:22 PM CDT | Excessive Heat Warning | DVN | 9 hr |
| Aug 19, 2:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 19, 3:04 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 19, 5:44 PM CDT | Severe Thunderstorm Warning | DVN | 46 min |
| Aug 20, 4:33 PM CDT | Special Weather Statement | DVN | 117 min |
| Aug 29, 7:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 6, 2:31 AM CDT | Dense Fog Advisory | DVN | 6 hr |
| Sep 18, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 6:11 PM CDT | Tornado Watch | SPC | 6 hr |
| Sep 18, 7:55 PM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| Sep 18, 8:08 PM CDT | Severe Thunderstorm Warning | DVN | 36 min |
| Sep 18, 8:34 PM CDT | Severe Thunderstorm Warning | DVN | 26 min |
| Sep 18, 8:41 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 27, 1:53 PM CDT | Frost Advisory | DVN | 18 hr |
| Sep 28, 3:00 PM CDT | Frost Advisory | DVN | 16 hr |
| Oct 6, 2:32 PM CDT | Freeze Watch | DVN | 12 hr |
| Oct 7, 2:19 AM CDT | Freeze Warning | DVN | 31 hr |
| Oct 12, 2:56 AM CDT | Special Weather Statement | DVN | 64 min |
| Oct 12, 3:18 AM CDT | Severe Thunderstorm Warning | DVN | 27 min |
| Oct 22, 10:31 AM CDT | Red Flag Warning | DVN | 8 hr |
| Nov 4, 11:38 AM CDT | Special Weather Statement | DVN | 37 min |
| Nov 4, 12:03 PM CDT | Special Weather Statement | DVN | 42 min |
| Nov 4, 12:11 PM CDT | Severe Thunderstorm Warning | DVN | 34 min |
| Nov 10, 11:47 AM CST | Mesoscale Discussion | SPC | 88 min |
| Nov 10, 3:28 PM CST | Special Weather Statement | DVN | 47 min |
| Nov 14, 2:24 PM CST | Winter Weather Advisory | DVN | 30 hr |
| Dec 2, 2:52 AM CST | Wind Advisory | DVN | 26 hr |
| Dec 7, 3:36 AM CST | Dense Fog Advisory | DVN | 8 hr |
| Dec 9, 9:31 PM CST | Dense Fog Advisory | DVN | 14 hr |
| Dec 12, 2:25 PM CST | Wind Advisory | DVN | 31 hr |
| Dec 19, 2:42 PM CST | Winter Storm Watch | DVN | 37 hr |
| Dec 20, 2:34 PM CST | Winter Storm Warning | DVN | 4 days |
| Dec 21, 11:41 AM CST | Blizzard Warning | DVN | 66 hr |
| Dec 22, 6:16 AM CST | Special Weather Statement | DVN | 89 min |
| Dec 24, 3:10 AM CST | Winter Weather Advisory | DVN | 9 hr |
| Dec 24, 2:01 PM CST | Wind Chill Advisory | DVN | 20 hr |
| Dec 25, 12:16 PM CST | Winter Weather Advisory | DVN | 24 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 archive20212023
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.