Alert archive / Iowa / Johnson County
Weather alerts in Johnson County, Iowa, 2015
125 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 125
- Warnings
- 28
- Watches
- 24
- Advisories
- 26
- Busiest month
- June29 alerts
- Busiest day
- June 20, 20156 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 4, 3:06 AM CST | Wind Chill Advisory | DVN | 31 hr |
| Jan 4, 3:17 AM CST | Winter Storm Watch | DVN | 13 hr |
| Jan 4, 3:56 PM CST | Winter Storm Warning | DVN | 34 hr |
| Jan 5, 12:25 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 5, 6:29 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 6, 3:42 AM CST | Wind Chill Warning | DVN | 36 hr |
| Jan 7, 3:21 PM CST | Wind Chill Advisory | DVN | 21 hr |
| Jan 8, 2:03 PM CST | Winter Weather Advisory | DVN | 18 hr |
| Jan 8, 9:04 PM CST | Wind Chill Advisory | DVN | 36 hr |
| Jan 30, 10:38 AM CST | Winter Storm Watch | DVN | 17 hr |
| Jan 31, 3:53 AM CST | Winter Storm Warning | DVN | 44 hr |
| Jan 31, 10:13 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 14, 3:07 AM CST | Wind Chill Advisory | DVN | 26 hr |
| Feb 17, 3:21 AM CST | Wind Chill Advisory | DVN | 56 hr |
| Feb 22, 4:21 AM CST | Wind Chill Advisory | DVN | 30 hr |
| Feb 24, 3:03 PM CST | Winter Weather Advisory | DVN | 39 hr |
| Feb 25, 4:31 AM CST | Winter Storm Warning | DVN | 22 hr |
| Feb 26, 3:14 PM CST | Wind Chill Advisory | DVN | 18 hr |
| Feb 27, 3:00 PM CST | Wind Chill Advisory | DVN | 18 hr |
| Mar 2, 3:12 PM CST | Winter Weather Advisory | DVN | 21 hr |
| Mar 10, 1:42 AM CDT | Dense Fog Advisory | DVN | 10 hr |
| Mar 31, 3:59 PM CDT | Fire Weather Watch | DVN | 12 hr |
| Apr 1, 3:42 AM CDT | Red Flag Warning | DVN | 15 hr |
| Apr 9, 12:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 9, 12:58 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 9, 3:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Apr 9, 4:14 PM CDT | Severe Thunderstorm Warning | DVN | 46 min |
| Apr 9, 6:39 PM CDT | Special Weather Statement | DVN | 2 hr |
| Apr 10, 1:09 PM CDT | Wind Advisory | DVN | 6 hr |
| Apr 20, 9:05 AM CDT | Special Weather Statement | DVN | 3 hr |
| Apr 20, 11:49 AM CDT | Special Weather Statement | DVN | 3 hr |
| Apr 20, 2:39 PM CDT | Special Weather Statement | DVN | 3 hr |
| Apr 21, 4:12 AM CDT | Wind Advisory | DVN | 15 hr |
| Apr 22, 3:19 PM CDT | Freeze Warning | DVN | 17 hr |
| May 6, 4:16 PM CDT | Special Weather Statement | DVN | 59 min |
| May 7, 3:43 PM CDT | Special Weather Statement | DVN | 47 min |
| May 10, 5:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 24, 3:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 24, 5:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 1:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 3:28 AM CDT | Special Weather Statement | DVN | 47 min |
| Jun 7, 4:12 AM CDT | Special Weather Statement | DVN | 63 min |
| Jun 7, 5:22 AM CDT | Special Weather Statement | DVN | 53 min |
| Jun 11, 10:56 AM CDT | Flash Flood Watch | DVN | 18 hr |
| Jun 11, 8:45 PM CDT | Flash Flood Warning | DVN | 6 hr |
| Jun 11, 10:08 PM CDT | Flash Flood Warning | DVN | 6 hr |
| Jun 15, 7:37 AM CDT | Flash Flood Watch | DVN | 13 hr |
| Jun 15, 9:59 PM CDT | River Flood Warning | DVN | 3 days |
| Jun 20, 11:26 AM CDT | Severe Thunderstorm Warning | DVN | 17 min |
| Jun 20, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 20, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 3:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 20, 5:41 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Jun 20, 6:33 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jun 20, 10:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 21, 1:45 AM CDT | Dense Fog Advisory | DVN | 7 hr |
| Jun 22, 7:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 22, 8:08 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 22, 1:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 22, 3:56 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 22, 6:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 22, 8:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 23, 3:39 PM CDT | Flash Flood Watch | DVN | 42 hr |
| Jun 24, 9:06 PM CDT | River Flood Warning | DVN | 5 days |
| Jun 24, 9:06 PM CDT | River Flood Warning | DVN | 5 days |
| Jun 24, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 29, 4:31 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Jun 29, 10:39 PM CDT | Special Weather Statement | DVN | 51 min |
| Jul 11, 2:15 PM CDT | Flash Flood Watch | DVN | 11 hr |
| Jul 12, 3:24 PM CDT | Heat Advisory | DVN | 29 hr |
| Jul 13, 2:20 PM CDT | Excessive Heat Warning | DVN | 6 hr |
| Jul 16, 3:54 AM CDT | Flash Flood Watch | DVN | 21 hr |
| Jul 16, 3:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 3:16 AM CDT | Heat Advisory | DVN | 33 hr |
| Jul 18, 12:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 25, 3:02 AM CDT | Heat Advisory | DVN | 9 hr |
| Jul 26, 1:13 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 28, 10:14 AM CDT | Special Weather Statement | DVN | 2 hr |
| Jul 28, 3:24 PM CDT | Flash Flood Watch | DVN | 12 hr |
| Jul 28, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 28, 8:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 2, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 9, 2:21 PM CDT | River Flood Warning | DVN | 3 days |
| Aug 10, 5:03 AM CDT | Dense Fog Advisory | DVN | 3 hr |
| Aug 18, 1:35 PM CDT | Tornado Watch | SPC | 8 hr |
| Aug 30, 12:40 AM CDT | Dense Fog Advisory | DVN | 10 hr |
| Aug 30, 7:14 PM CDT | Dense Fog Advisory | DVN | 11 hr |
| Sep 7, 3:24 AM CDT | Flash Flood Watch | DVN | 28 hr |
| Sep 17, 10:58 AM CDT | Special Weather Statement | DVN | 92 min |
| Sep 17, 11:00 AM CDT | Special Weather Statement | DVN | 90 min |
| Sep 17, 11:47 AM CDT | Severe Thunderstorm Warning | DVN | 28 min |
| Sep 18, 7:36 PM CDT | Special Weather Statement | DVN | 24 min |
| Sep 19, 6:33 AM CDT | River Flood Warning | DVN | 64 hr |
| Oct 15, 3:08 PM CDT | Freeze Watch | DVN | 13 hr |
| Oct 16, 3:45 AM CDT | Freeze Warning | DVN | 29 hr |
| Oct 18, 2:15 PM CDT | Red Flag Warning | DVN | 29 hr |
| Oct 20, 3:45 PM CDT | Special Weather Statement | DVN | 45 min |
| Oct 20, 6:04 PM CDT | Special Weather Statement | DVN | 26 min |
| Oct 21, 10:56 AM CDT | Special Weather Statement | DVN | 34 min |
| Nov 5, 3:17 PM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 5, 7:56 PM CST | Special Weather Statement | DVN | 49 min |
| Nov 5, 8:32 PM CST | Special Weather Statement | DVN | 43 min |
| Nov 10, 3:33 PM CST | Wind Advisory | DVN | 50 hr |
| Nov 11, 10:17 AM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 11, 2:24 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 11, 3:20 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 11, 4:44 PM CST | Severe Thunderstorm Warning | DVN | 61 min |
| Nov 11, 5:07 PM CST | Tornado Warning | DVN | 18 min |
| Nov 19, 3:36 AM CST | Wind Advisory | DVN | 14 hr |
| Nov 19, 4:11 AM CST | Winter Storm Watch | DVN | 11 hr |
| Nov 19, 3:32 PM CST | Winter Storm Warning | DVN | 44 hr |
| Nov 20, 1:51 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Nov 20, 7:33 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Nov 26, 8:24 PM CST | River Flood Warning | DVN | 4 days |
| Nov 27, 3:13 PM CST | River Flood Warning | DVN | 4 days |
| Dec 2, 3:45 AM CST | Special Weather Statement | DVN | 75 min |
| Dec 10, 12:52 PM CST | Wind Advisory | DVN | 4 hr |
| Dec 11, 9:53 PM CST | Dense Fog Advisory | DVN | 14 hr |
| Dec 14, 1:09 AM CST | River Flood Warning | DVN | 5 days |
| Dec 15, 11:23 AM CST | River Flood Warning | DVN | 5 days |
| Dec 23, 1:55 PM CST | Tornado Watch | SPC | 4 hr |
| Dec 23, 3:24 PM CST | Mesoscale Discussion | SPC | 96 min |
| Dec 26, 3:57 PM CST | Winter Storm Watch | DVN | 24 hr |
| Dec 27, 4:03 PM CST | Winter Storm Warning | DVN | 38 hr |
| Dec 28, 3:35 AM CST | Mesoscale Discussion | SPC | 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 | 5 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 2 |
| River Flood Warning | 9 |
| Flash Flood Watch | 7 |
| Winter | |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.