Alert archive / Iowa / Delaware County
Weather alerts in Delaware County, Iowa, 2020
129 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 129
- Warnings
- 23
- Watches
- 21
- Advisories
- 36
- Busiest month
- June24 alerts
- Busiest day
- September 6, 202011 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 3, 2:23 PM CST | Winter Weather Advisory | DVN | 13 hr |
| Jan 9, 11:21 AM CST | Winter Storm Watch | DVN | 16 hr |
| Jan 10, 3:17 AM CST | Winter Storm Warning | DVN | 43 hr |
| Jan 10, 5:50 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 14, 2:11 PM CST | Winter Weather Advisory | DVN | 24 hr |
| Jan 15, 3:43 PM CST | Winter Storm Watch | DVN | 23 hr |
| Jan 16, 2:17 PM CST | Winter Storm Warning | DVN | 52 hr |
| Jan 18, 3:13 PM CST | Wind Chill Advisory | DVN | 21 hr |
| Feb 1, 12:49 AM CST | Dense Fog Advisory | DVN | 6 hr |
| Feb 8, 3:03 AM CST | Winter Weather Advisory | DVN | 36 hr |
| Feb 11, 3:00 PM CST | Winter Weather Advisory | DVN | 45 hr |
| Feb 12, 3:28 AM CST | Wind Chill Advisory | DVN | 23 hr |
| Feb 13, 10:05 AM CST | Wind Chill Advisory | DVN | 24 hr |
| Feb 23, 10:35 AM CST | Winter Storm Watch | DVN | 28 hr |
| Mar 4, 2:55 PM CST | Wind Advisory | DVN | 36 hr |
| Mar 25, 4:41 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| Mar 28, 2:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 28, 5:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 28, 6:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 28, 6:53 PM CDT | Tornado Warning | DVN | 28 min |
| Mar 28, 7:49 PM CDT | Tornado Warning | DVN | 26 min |
| Mar 28, 9:26 PM CDT | Wind Advisory | DVN | 22 hr |
| Apr 7, 3:52 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| Apr 8, 4:22 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| Apr 8, 2:04 PM CDT | Special Weather Statement | DVN | 56 min |
| Apr 9, 2:52 AM CDT | Wind Advisory | DVN | 16 hr |
| Apr 12, 3:42 AM CDT | Wind Advisory | DVN | 36 hr |
| Apr 20, 4:45 PM CDT | Special Weather Statement | DVN | 60 min |
| May 7, 4:00 AM CDT | Freeze Watch | DVN | 23 hr |
| May 8, 3:16 AM CDT | Freeze Warning | DVN | 29 hr |
| May 10, 2:36 PM CDT | Frost Advisory | DVN | 16 hr |
| May 11, 2:02 PM CDT | Frost Advisory | DVN | 18 hr |
| May 15, 3:00 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| May 23, 11:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 12:33 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 2:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 24, 1:57 AM CDT | Dense Fog Advisory | DVN | 6 hr |
| May 25, 6:49 PM CDT | Special Weather Statement | DVN | 41 min |
| May 26, 2:17 PM CDT | Severe Thunderstorm Warning | DVN | 13 min |
| May 26, 4:41 PM CDT | Special Weather Statement | DVN | 34 min |
| May 28, 3:32 AM CDT | Flash Flood Watch | DVN | 15 hr |
| May 28, 9:22 AM CDT | Flash Flood Warning | DVN | 6 hr |
| Jun 4, 12:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 4, 1:29 PM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Jun 4, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 4, 10:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 5, 12:38 AM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| Jun 5, 1:02 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 1:12 AM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jun 5, 2:38 AM CDT | Special Weather Statement | DVN | 37 min |
| Jun 5, 4:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 8, 3:23 AM CDT | Flash Flood Watch | DVN | 40 hr |
| Jun 9, 3:04 PM CDT | Special Weather Statement | DVN | 56 min |
| Jun 10, 3:49 AM CDT | Flash Flood Watch | DVN | 12 hr |
| Jun 10, 11:12 AM CDT | Special Weather Statement | DVN | 93 min |
| Jun 21, 9:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 11:02 PM CDT | Special Weather Statement | DVN | 43 min |
| Jun 21, 11:58 PM CDT | Special Weather Statement | DVN | 47 min |
| Jun 22, 12:51 AM CDT | Special Weather Statement | DVN | 54 min |
| Jun 22, 10:03 AM CDT | Flash Flood Watch | DVN | 9 hr |
| Jun 24, 2:34 PM CDT | Special Weather Statement | DVN | 41 min |
| Jun 24, 6:47 PM CDT | Special Weather Statement | DVN | 43 min |
| Jun 26, 9:20 AM CDT | Special Weather Statement | DVN | 25 min |
| Jun 26, 12:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 5:48 PM CDT | Special Weather Statement | DVN | 87 min |
| Jul 1, 7:51 PM CDT | Special Weather Statement | DVN | 54 min |
| Jul 7, 1:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 2:38 PM CDT | Heat Advisory | DVN | 28 hr |
| Jul 9, 10:24 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 9, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 9, 2:56 PM CDT | Severe Thunderstorm Warning | DVN | 34 min |
| Jul 9, 3:29 PM CDT | Severe Thunderstorm Warning | DVN | 31 min |
| Jul 11, 9:17 AM CDT | Severe Thunderstorm Warning | DVN | 58 min |
| Jul 11, 9:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 11, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 14, 4:11 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 8:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 17, 3:04 AM CDT | Heat Advisory | DVN | 41 hr |
| Jul 18, 8:53 AM CDT | Special Weather Statement | DVN | 52 min |
| Jul 25, 2:30 AM CDT | Heat Advisory | DVN | 41 hr |
| Aug 9, 9:16 AM CDT | Special Weather Statement | DVN | 44 min |
| Aug 9, 12:49 PM CDT | Special Weather Statement | DVN | 41 min |
| Aug 9, 1:28 PM CDT | Special Weather Statement | DVN | 47 min |
| Aug 9, 1:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 10:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 10, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 12:17 PM CDT | Severe Thunderstorm Warning | DVN | 58 min |
| Aug 10, 12:38 PM CDT | Severe Thunderstorm Warning | DVN | 37 min |
| Aug 24, 12:18 PM CDT | Heat Advisory | DVN | 7 hr |
| Aug 25, 3:07 AM CDT | Heat Advisory | DVN | 16 hr |
| Aug 28, 2:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 28, 3:16 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 28, 3:21 PM CDT | Special Weather Statement | DVN | 24 min |
| Aug 28, 3:50 PM CDT | Special Weather Statement | DVN | 40 min |
| Aug 28, 4:09 PM CDT | Special Weather Statement | DVN | 36 min |
| Aug 28, 4:27 PM CDT | Severe Thunderstorm Warning | DVN | 33 min |
| Sep 5, 7:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 11:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 6, 1:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 6, 1:35 AM CDT | Severe Thunderstorm Warning | DVN | 55 min |
| Sep 6, 2:17 AM CDT | Severe Thunderstorm Warning | DVN | 58 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 6, 2:53 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 6, 3:14 AM CDT | Severe Thunderstorm Warning | DVN | 32 min |
| Sep 6, 4:28 AM CDT | Severe Thunderstorm Warning | DVN | 47 min |
| Sep 6, 5:30 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Sep 11, 2:28 PM CDT | Flash Flood Watch | DVN | 15 hr |
| Oct 1, 3:49 AM CDT | Frost Advisory | DVN | 28 hr |
| Oct 4, 2:54 AM CDT | Frost Advisory | DVN | 29 hr |
| Oct 15, 3:15 AM CDT | Freeze Warning | DVN | 29 hr |
| Oct 22, 3:45 PM CDT | Dense Fog Advisory | DVN | 6 hr |
| Oct 22, 4:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Nov 1, 12:46 AM CDT | Wind Advisory | DVN | 14 hr |
| Nov 14, 3:35 AM CST | Wind Advisory | DVN | 38 hr |
| Nov 23, 2:04 PM CST | Winter Weather Advisory | DVN | 19 hr |
| Nov 24, 9:16 PM CST | Dense Fog Advisory | DVN | 11 hr |
| Dec 11, 2:08 AM CST | Winter Weather Advisory | DVN | 36 hr |
| Dec 12, 1:19 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 12, 1:53 AM CST | Winter Storm Warning | DVN | 12 hr |
| Dec 21, 11:32 AM CST | Wind Advisory | DVN | 5 hr |
| Dec 23, 3:43 AM CST | Wind Advisory | DVN | 23 hr |
| Dec 27, 9:56 AM CST | Winter Weather Advisory | DVN | 8 hr |
| Dec 28, 3:19 AM CST | Winter Storm Watch | DVN | 17 hr |
| Dec 28, 3:15 PM CST | Winter Storm Warning | DVN | 38 hr |
| Dec 28, 3:15 PM CST | Winter Weather Advisory | DVN | 38 hr |
| Dec 29, 2:17 PM CST | Mesoscale Discussion | SPC | 4 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 | 14 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 22 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 8 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.