Alert archive / Iowa / Delaware County
Weather alerts in Delaware County, Iowa, 2021
127 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Delaware County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 127
- Warnings
- 37
- Watches
- 16
- Advisories
- 42
- Busiest month
- August25 alerts
- Busiest day
- August 10, 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, 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 13, 2:53 PM CST | Winter Weather Advisory | DVN | 44 hr |
| Jan 16, 8:33 PM CST | Winter Weather Advisory | DVN | 15 hr |
| Jan 19, 5:03 PM CST | Winter Weather Advisory | DVN | 4 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 24, 2:43 PM CST | Winter Weather Advisory | DVN | 45 hr |
| Jan 25, 3:26 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 29, 2:11 AM CST | Winter Storm Watch | DVN | 12 hr |
| Jan 29, 2:29 PM CST | Winter Storm Warning | DVN | 46 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 Storm Watch | DVN | 11 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 6, 12:51 AM CST | Wind Chill Advisory | DVN | 9 hr |
| Feb 6, 3:47 AM CST | Wind Chill Warning | DVN | 32 hr |
| Feb 8, 2:48 PM CST | Wind Chill Advisory | DVN | 19 hr |
| Feb 9, 2:28 AM CST | Wind Chill Warning | DVN | 8 hr |
| Feb 10, 2:30 PM CST | Wind Chill Advisory | DVN | 20 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 15, 12:10 PM CST | Wind Chill Advisory | DVN | 22 hr |
| Feb 20, 2:35 PM CST | Winter Weather Advisory | DVN | 30 hr |
| Feb 26, 1:19 AM CST | Dense Fog Advisory | DVN | 4 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 14, 3:53 AM CDT | Winter Weather Advisory | DVN | 39 hr |
| Mar 15, 3:32 AM CDT | Winter Storm Warning | DVN | 15 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, 9:13 PM CDT | Special Weather Statement | DVN | 62 min |
| Apr 19, 3:41 AM CDT | Freeze Watch | DVN | 10 hr |
| Apr 19, 2:07 PM CDT | Freeze Warning | DVN | 43 hr |
| Apr 19, 11:47 PM CDT | Frost Advisory | DVN | 8 hr |
| Apr 21, 3:07 AM CDT | Freeze Warning | DVN | 30 hr |
| Apr 24, 2:25 PM CDT | Frost Advisory | DVN | 18 hr |
| May 1, 3:26 AM CDT | Wind Advisory | DVN | 16 hr |
| May 7, 1:48 PM CDT | Frost Advisory | DVN | 18 hr |
| May 10, 2:28 PM CDT | Frost Advisory | DVN | 18 hr |
| May 11, 2:26 PM CDT | Frost Advisory | DVN | 17 hr |
| May 28, 3:30 AM CDT | Frost Advisory | DVN | 28 hr |
| Jun 17, 2:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 20, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 5:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 20, 6:22 PM CDT | Special Weather Statement | DVN | 53 min |
| Jun 20, 6:53 PM CDT | Special Weather Statement | DVN | 52 min |
| Jun 20, 7:08 PM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| Jun 22, 5:27 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jun 25, 2:48 PM CDT | Special Weather Statement | DVN | 57 min |
| Jun 25, 4:26 PM CDT | Special Weather Statement | DVN | 49 min |
| Jun 26, 8:29 PM CDT | Special Weather Statement | DVN | 31 min |
| Jun 30, 4:22 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Jul 9, 5:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 14, 7:02 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 8:54 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 14, 10:58 AM CDT | Special Weather Statement | DVN | 32 min |
| Jul 14, 11:40 AM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| Jul 14, 5:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 14, 6:13 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 14, 6:56 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Jul 14, 7:28 PM CDT | Tornado Warning | DVN | 17 min |
| Jul 14, 7:40 PM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| Jul 14, 7:43 PM CDT | Tornado Warning | DVN | 32 min |
| Jul 14, 8:11 PM CDT | Severe Thunderstorm Warning | DVN | 19 min |
| Jul 14, 8:56 PM CDT | Tornado Warning | DVN | 49 min |
| Jul 14, 9:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 14, 9:29 PM CDT | Tornado Warning | DVN | 46 min |
| Jul 27, 3:12 AM CDT | Heat Advisory | DVN | 64 hr |
| Jul 27, 7:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 27, 8:03 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 10:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 28, 12:50 AM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| Jul 28, 12:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 29, 1:42 AM CDT | Special Weather Statement | DVN | 63 min |
| Aug 7, 11:03 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 8, 2:24 PM CDT | Heat Advisory | DVN | 53 hr |
| Aug 9, 4:31 AM CDT | Special Weather Statement | DVN | 29 min |
| Aug 9, 5:06 AM CDT | Special Weather Statement | DVN | 24 min |
| Aug 10, 1:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 10, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 2:28 PM CDT | Heat Advisory | DVN | 29 hr |
| Aug 10, 3:07 PM CDT | Severe Thunderstorm Warning | DVN | 23 min |
| Aug 10, 3:25 PM CDT | Severe Thunderstorm Warning | DVN | 50 min |
| Aug 10, 3:29 PM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Aug 10, 4:04 PM CDT | Severe Thunderstorm Warning | DVN | 56 min |
| Aug 10, 4:28 PM CDT | Severe Thunderstorm Warning | DVN | 36 min |
| Aug 11, 3:56 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 4:26 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Aug 11, 5:11 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Aug 11, 5:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 21, 1:47 AM CDT | Special Weather Statement | DVN | 58 min |
| Aug 23, 5:40 AM CDT | Special Weather Statement | DVN | 65 min |
| Aug 24, 1:52 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 24, 2:49 PM CDT | Severe Thunderstorm Warning | DVN | 56 min |
| Aug 24, 3:03 PM CDT | Severe Thunderstorm Warning | DVN | 42 min |
| Aug 24, 3:42 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Aug 26, 5:50 PM CDT | Flash Flood Watch | DVN | 13 hr |
| Aug 28, 5:27 AM CDT | Flash Flood Warning | DVN | 4 hr |
| Aug 28, 11:34 AM CDT | River Flood Watch | DVN | 9 hr |
| Sep 20, 12:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 2:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 20, 3:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Sep 20, 5:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 20, 6:52 PM CDT | Severe Thunderstorm Warning | DVN | 38 min |
| Oct 8, 9:43 PM CDT | Dense Fog Advisory | DVN | 10 hr |
| Oct 21, 3:24 AM CDT | Frost Advisory | DVN | 30 hr |
| Oct 22, 2:22 PM CDT | Freeze Warning | DVN | 19 hr |
| Nov 14, 2:27 AM CST | Wind Advisory | DVN | 7 hr |
| Dec 5, 3:06 AM CST | Wind Advisory | DVN | 33 hr |
| Dec 9, 5:12 AM CST | Winter Weather Advisory | DVN | 4 hr |
| Dec 10, 3:26 AM CST | Winter Weather Advisory | DVN | 27 hr |
| 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, 7:11 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 15, 8:08 PM CST | Severe Thunderstorm Warning | DVN | 67 min |
| Dec 15, 8:44 PM CST | Severe Thunderstorm Warning | DVN | 61 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 | 20 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 12 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 1 |
| River Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 3 |
| Wind Chill Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 7 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| 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.