Alert archive / Iowa / Louisa County
Weather alerts in Louisa County, Iowa, 2021
100 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Louisa County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 100
- Warnings
- 21
- Watches
- 12
- Advisories
- 40
- Busiest month
- June16 alerts
- Busiest day
- June 19, 20217 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, 4:02 AM CST | Winter Storm Warning | DVN | 20 hr |
| Jan 2, 2:49 PM CST | Dense Fog Advisory | DVN | 21 hr |
| Jan 3, 2:22 PM CST | Dense Fog Advisory | DVN | 28 hr |
| Jan 5, 3:41 PM CST | Dense Fog Advisory | DVN | 18 hr |
| Jan 6, 2:37 PM CST | Dense Fog Advisory | DVN | 13 hr |
| Jan 16, 8:33 PM CST | Winter Weather Advisory | DVN | 15 hr |
| Jan 19, 4:59 AM CST | Winter Weather Advisory | DVN | 5 hr |
| Jan 23, 3:44 PM CST | Winter Storm Watch | DVN | 23 hr |
| Jan 24, 2:43 PM CST | Winter Storm Warning | DVN | 45 hr |
| Jan 25, 3:26 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 2:29 PM CST | Winter Weather Advisory | DVN | 52 hr |
| Feb 3, 1:04 AM CST | Dense Fog Advisory | DVN | 10 hr |
| Feb 3, 4:01 AM CST | Winter Weather Advisory | DVN | 56 hr |
| Feb 3, 2:56 PM CST | Winter Storm Warning | DVN | 36 hr |
| Feb 5, 1:38 PM CST | Winter Weather Advisory | DVN | 29 hr |
| Feb 6, 3:47 AM CST | Wind Chill Advisory | DVN | 32 hr |
| Feb 8, 2:48 PM CST | Wind Chill Advisory | DVN | 19 hr |
| Feb 11, 5:07 PM CST | Wind Chill Advisory | DVN | 43 hr |
| Feb 13, 3:37 AM CST | Wind Chill Warning | DVN | 56 hr |
| Feb 14, 1:43 PM CST | Winter Weather Advisory | DVN | 40 hr |
| Feb 15, 12:10 PM CST | Wind Chill Advisory | DVN | 22 hr |
| Feb 20, 2:35 PM CST | Winter Weather Advisory | DVN | 30 hr |
| Feb 28, 6:13 AM CST | Dense Fog Advisory | DVN | 6 hr |
| Mar 10, 2:52 AM CST | Wind Advisory | DVN | 17 hr |
| Mar 16, 12:37 AM CDT | Dense Fog Advisory | DVN | 9 hr |
| Mar 17, 2:28 PM CDT | Wind Advisory | DVN | 29 hr |
| Mar 28, 3:24 AM CDT | Fire Weather Watch | DVN | 12 hr |
| Mar 28, 2:41 PM CDT | Wind Advisory | DVN | 29 hr |
| Mar 28, 2:55 PM CDT | Red Flag Warning | DVN | 29 hr |
| Apr 7, 5:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 7, 6:44 PM CDT | Special Weather Statement | DVN | 46 min |
| Apr 10, 9:53 AM CDT | Wind Advisory | DVN | 14 hr |
| Apr 11, 11:34 AM CDT | Areal Flood Warning | DVN | 6 hr |
| Apr 13, 2:47 PM CDT | Frost Advisory | DVN | 17 hr |
| Apr 14, 2:45 PM CDT | Frost Advisory | DVN | 17 hr |
| Apr 19, 3:41 AM CDT | Freeze Watch | DVN | 10 hr |
| Apr 19, 2:07 PM CDT | Freeze Warning | DVN | 43 hr |
| Apr 21, 3:07 AM CDT | Freeze Warning | DVN | 30 hr |
| May 1, 3:26 AM CDT | Wind Advisory | DVN | 16 hr |
| May 3, 2:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 11, 2:26 PM CDT | Frost Advisory | DVN | 17 hr |
| May 26, 3:07 AM CDT | Special Weather Statement | DVN | 38 min |
| Jun 1, 1:18 AM CDT | Dense Fog Advisory | DVN | 8 hr |
| Jun 17, 7:44 AM CDT | Special Weather Statement | DVN | 31 min |
| Jun 18, 9:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 18, 10:17 PM CDT | Severe Thunderstorm Warning | DVN | 58 min |
| Jun 18, 11:29 PM CDT | Severe Thunderstorm Warning | DVN | 46 min |
| Jun 18, 11:47 PM CDT | Severe Thunderstorm Warning | DVN | 29 min |
| Jun 19, 12:27 AM CDT | Severe Thunderstorm Warning | DVN | 27 min |
| Jun 19, 1:28 AM CDT | Special Weather Statement | DVN | 2 hr |
| Jun 20, 10:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 6:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 20, 8:59 PM CDT | Special Weather Statement | DVN | 31 min |
| Jun 24, 2:08 PM CDT | Flash Flood Watch | DVN | 54 hr |
| Jun 28, 3:19 AM CDT | Flash Flood Watch | DVN | 38 hr |
| Jun 30, 1:49 PM CDT | Special Weather Statement | DVN | 116 min |
| Jul 1, 4:24 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Jul 7, 2:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 9, 5:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 9, 5:59 PM CDT | Special Weather Statement | DVN | 31 min |
| Jul 9, 6:23 PM CDT | Severe Thunderstorm Warning | DVN | 37 min |
| Jul 9, 7:08 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 9, 7:29 PM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Jul 14, 10:58 AM CDT | Special Weather Statement | DVN | 32 min |
| Jul 23, 3:18 AM CDT | Heat Advisory | DVN | 41 hr |
| Jul 24, 3:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 3:12 AM CDT | Heat Advisory | DVN | 64 hr |
| Jul 29, 9:55 AM CDT | Special Weather Statement | DVN | 35 min |
| Jul 29, 10:27 AM CDT | Special Weather Statement | DVN | 33 min |
| Aug 8, 2:24 PM CDT | Heat Advisory | DVN | 53 hr |
| Aug 10, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 2:28 PM CDT | Heat Advisory | DVN | 29 hr |
| Aug 11, 6:38 AM CDT | Severe Thunderstorm Warning | DVN | 37 min |
| Aug 11, 8:16 AM CDT | High Wind Warning | DVN | 104 min |
| Aug 11, 3:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 23, 8:15 AM CDT | Special Weather Statement | DVN | 45 min |
| Aug 23, 2:45 PM CDT | Heat Advisory | DVN | 29 hr |
| Aug 26, 3:27 AM CDT | Heat Advisory | DVN | 17 hr |
| Aug 31, 3:41 PM CDT | Special Weather Statement | DVN | 64 min |
| Sep 20, 7:53 PM CDT | Special Weather Statement | DVN | 52 min |
| Oct 13, 7:51 AM CDT | Special Weather Statement | DVN | 39 min |
| Oct 22, 2:22 PM CDT | Frost Advisory | DVN | 19 hr |
| Oct 23, 12:53 PM CDT | Flash Flood Watch | DVN | 38 hr |
| Oct 31, 2:22 PM CDT | Freeze Warning | DVN | 19 hr |
| Nov 11, 7:16 PM CST | Special Weather Statement | DVN | 59 min |
| Nov 14, 2:27 AM CST | Wind Advisory | DVN | 7 hr |
| Dec 5, 3:06 AM CST | Wind Advisory | DVN | 33 hr |
| Dec 10, 6:26 PM CST | Tornado Warning | DVN | 20 min |
| Dec 13, 2:36 PM CST | High Wind Watch | DVN | 24 hr |
| Dec 14, 2:33 PM CST | High Wind Warning | DVN | 39 hr |
| Dec 15, 4:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Dec 15, 5:30 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 15, 8:08 PM CST | Severe Thunderstorm Warning | DVN | 67 min |
| Dec 15, 8:50 PM CST | Severe Thunderstorm Warning | DVN | 55 min |
| Dec 27, 2:57 PM CST | Winter Weather Advisory | DVN | 27 hr |
| Dec 28, 8:59 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 30, 7:17 PM CST | Dense Fog Advisory | DVN | 23 hr |
| Dec 31, 11:01 AM CST | Winter Weather Advisory | DVN | 10 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 | 9 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 15 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 3 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
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.