Alert archive / Iowa / Washington County
Weather alerts in Washington County, Iowa, 2025
135 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washington County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 135
- Warnings
- 29
- Watches
- 24
- Advisories
- 47
- Busiest month
- July46 alerts
- Busiest day
- July 11, 202510 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Washington County in 2025 had a tornado report inside them.
Washington County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 7 | 42% | 9 | 100% | 15 min |
| Flash flood warnings | 2 | 1 | 50% | 2 | 100% | 145 min |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Quad Cities, IA: tornado warnings | 36 | 16 | 56% | 42 | 62% | 15 min |
| NWS Quad Cities, IA: severe thunderstorm warnings | 141 | 87 | 38% | 309 | 82% | 28 min |
| NWS Quad Cities, IA: flash flood warnings | 41 | 25 | 39% | 74 | 88% | 106 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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, 8:37 PM CST | Winter Weather Advisory | DVN | 23 hr |
| Jan 17, 2:39 PM CST | Cold Weather Advisory | DVN | 45 hr |
| Jan 20, 2:42 AM CST | Cold Weather Advisory | DVN | 24 hr |
| Jan 20, 2:42 AM CST | Extreme Cold Warning | DVN | 33 hr |
| Jan 21, 10:23 AM CST | Cold Weather Advisory | DVN | 16 hr |
| Jan 30, 5:42 PM CST | Dense Fog Advisory | DVN | 18 hr |
| Jan 31, 1:40 AM CST | Flood Watch | DVN | 13 hr |
| Feb 4, 1:59 PM CST | Winter Weather Advisory | DVN | 37 hr |
| Feb 10, 2:14 AM CST | Winter Storm Watch | DVN | 35 hr |
| Feb 11, 2:56 AM CST | Winter Storm Warning | DVN | 47 hr |
| Feb 14, 3:02 AM CST | Winter Weather Advisory | DVN | 35 hr |
| Feb 16, 2:36 AM CST | Extreme Cold Watch | DVN | 24 hr |
| Feb 17, 2:38 AM CST | Cold Weather Advisory | DVN | 33 hr |
| Feb 18, 2:26 AM CST | Cold Weather Advisory | DVN | 34 hr |
| Feb 19, 2:22 AM CST | Cold Weather Advisory | DVN | 32 hr |
| Feb 25, 11:10 PM CST | Special Weather Statement | DVN | 50 min |
| Feb 27, 1:18 PM CST | Wind Advisory | DVN | 29 hr |
| Feb 27, 1:50 PM CST | Red Flag Warning | DVN | 28 hr |
| Mar 4, 1:46 AM CST | Wind Advisory | DVN | 43 hr |
| Mar 4, 1:37 PM CST | High Wind Warning | DVN | 28 hr |
| Mar 5, 2:18 AM CST | Winter Weather Advisory | DVN | 13 hr |
| Mar 10, 3:24 AM CDT | Red Flag Warning | DVN | 17 hr |
| Mar 13, 2:56 AM CDT | Wind Advisory | DVN | 45 hr |
| Mar 13, 11:54 AM CDT | Fire Weather Watch | DVN | 15 hr |
| Mar 14, 2:31 AM CDT | Red Flag Warning | DVN | 19 hr |
| Mar 14, 5:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 14, 6:49 PM CDT | Severe Thunderstorm Warning | DVN | 56 min |
| Mar 14, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 14, 7:41 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Mar 14, 8:03 PM CDT | Severe Thunderstorm Warning | DVN | 57 min |
| Mar 16, 2:15 PM CDT | Fire Weather Watch | DVN | 13 hr |
| Mar 17, 2:59 AM CDT | Red Flag Warning | DVN | 17 hr |
| Mar 18, 3:10 PM CDT | Wind Advisory | DVN | 37 hr |
| Mar 19, 4:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Mar 19, 11:39 AM CDT | Special Weather Statement | DVN | 51 min |
| Mar 19, 11:46 AM CDT | Severe Thunderstorm Warning | DVN | 44 min |
| Mar 21, 6:09 PM CDT | Special Weather Statement | DVN | 81 min |
| Mar 23, 2:20 AM CDT | Wind Advisory | DVN | 22 hr |
| Apr 1, 2:04 PM CDT | Wind Advisory | DVN | 29 hr |
| Apr 18, 1:01 AM CDT | Special Weather Statement | DVN | 29 min |
| Apr 18, 1:11 AM CDT | Severe Thunderstorm Warning | DVN | 21 min |
| Apr 20, 3:41 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 20, 5:25 PM CDT | Severe Thunderstorm Warning | DVN | 65 min |
| Jun 3, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 3, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 6:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 18, 1:58 PM CDT | Extreme Heat Watch | DVN | 37 hr |
| Jun 20, 2:37 AM CDT | Heat Advisory | DVN | 4 days |
| Jun 23, 6:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 3:05 AM CDT | Heat Advisory | DVN | 16 hr |
| Jul 5, 2:07 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 3:12 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jul 10, 4:51 PM CDT | Severe Thunderstorm Warning | DVN | 34 min |
| Jul 10, 6:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 7:17 PM CDT | Flood Watch | DVN | 30 hr |
| Jul 11, 12:44 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 11, 1:17 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 11, 1:48 AM CDT | Flash Flood Warning | DVN | 4 hr |
| Jul 11, 2:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 11, 12:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 11, 12:54 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 11, 2:38 PM CDT | Tornado Warning | DVN | 13 min |
| Jul 11, 2:58 PM CDT | Severe Thunderstorm Warning | DVN | 47 min |
| Jul 11, 3:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 11, 8:59 PM CDT | River Flood Watch | DVN | 13 hr |
| Jul 12, 10:12 AM CDT | River Flood Warning | DVN | 19 hr |
| Jul 14, 1:53 AM CDT | Dense Fog Advisory | DVN | 8 hr |
| Jul 18, 12:59 PM CDT | Flood Watch | DVN | 47 hr |
| Jul 19, 1:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 19, 5:05 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 19, 6:52 AM CDT | Severe Thunderstorm Warning | DVN | 53 min |
| Jul 19, 7:13 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 19, 12:06 PM CDT | River Flood Watch | DVN | 22 hr |
| Jul 20, 3:11 AM CDT | Flash Flood Warning | DVN | 6 hr |
| Jul 20, 10:10 AM CDT | River Flood Warning | DVN | 60 hr |
| Jul 21, 2:47 AM CDT | Extreme Heat Watch | DVN | 36 hr |
| Jul 22, 3:02 AM CDT | Heat Advisory | DVN | 16 hr |
| Jul 22, 2:17 PM CDT | Heat Advisory | DVN | 53 hr |
| Jul 22, 7:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 25, 1:20 PM CDT | Flood Watch | DVN | 24 hr |
| Jul 26, 1:45 PM CDT | Heat Advisory | DVN | 31 hr |
| Jul 27, 12:51 AM CDT | Dense Fog Advisory | DVN | 8 hr |
| Jul 27, 1:44 PM CDT | Extreme Heat Warning | DVN | 30 hr |
| Jul 28, 3:54 AM CDT | Special Weather Statement | DVN | 81 min |
| Jul 28, 2:11 PM CDT | Heat Advisory | DVN | 30 hr |
| Jul 28, 10:07 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 2:24 AM CDT | Severe Thunderstorm Warning | DVN | 53 min |
| Jul 29, 2:55 AM CDT | Severe Thunderstorm Warning | DVN | 41 min |
| Jul 29, 3:18 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 29, 8:35 PM CDT | River Flood Watch | DVN | 5 days |
| Jul 29, 9:04 PM CDT | River Flood Warning | DVN | 4 days |
| Jul 30, 1:28 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 2:27 AM CDT | Flood Watch | DVN | 11 hr |
| Jul 30, 4:49 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 30, 5:48 AM CDT | Special Weather Statement | DVN | 27 min |
| Jul 30, 10:42 AM CDT | River Flood Warning | DVN | 5 days |
| Aug 7, 1:31 PM CDT | Heat Advisory | DVN | 29 hr |
| Aug 8, 2:15 PM CDT | Flood Watch | DVN | 53 hr |
| Aug 11, 9:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 12:58 AM CDT | Special Weather Statement | DVN | 47 min |
| Aug 15, 11:40 AM CDT | Heat Advisory | DVN | 32 hr |
| Aug 15, 2:16 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 5:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 17, 2:09 AM CDT | Heat Advisory | DVN | 18 hr |
| Aug 18, 3:03 AM CDT | Heat Advisory | DVN | 16 hr |
| Aug 18, 3:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 15, 3:12 PM CDT | Special Weather Statement | DVN | 48 min |
| Sep 22, 11:57 PM CDT | Special Weather Statement | DVN | 48 min |
| Oct 18, 5:45 AM CDT | Dense Fog Advisory | DVN | 4 hr |
| Oct 22, 1:51 AM CDT | Frost Advisory | DVN | 31 hr |
| Oct 23, 1:59 AM CDT | Freeze Warning | DVN | 31 hr |
| Nov 2, 1:09 AM CST | Dense Fog Advisory | DVN | 9 hr |
| Nov 20, 5:25 AM CST | Dense Fog Advisory | DVN | 7 hr |
| Nov 23, 2:15 PM CST | Dense Fog Advisory | DVN | 22 hr |
| Nov 24, 11:32 PM CST | Dense Fog Advisory | DVN | 10 hr |
| Nov 25, 2:15 AM CST | Wind Advisory | DVN | 40 hr |
| Nov 27, 2:31 AM CST | Winter Storm Watch | DVN | 24 hr |
| Nov 27, 2:09 PM CST | Winter Storm Warning | DVN | 60 hr |
| Nov 29, 10:42 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Nov 30, 1:12 PM CST | Winter Weather Advisory | DVN | 35 hr |
| Dec 5, 1:19 PM CST | Winter Weather Advisory | DVN | 41 hr |
| Dec 9, 1:50 PM CST | Wind Advisory | DVN | 19 hr |
| Dec 11, 1:44 AM CST | Winter Weather Advisory | DVN | 22 hr |
| Dec 12, 3:24 AM CST | Winter Weather Advisory | DVN | 39 hr |
| Dec 12, 1:30 PM CST | Cold Weather Advisory | DVN | 65 hr |
| Dec 13, 9:43 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 18, 2:19 AM CST | Wind Advisory | DVN | 22 hr |
| Dec 18, 6:08 AM CST | Special Weather Statement | DVN | 37 min |
| Dec 18, 6:40 AM CST | Special Weather Statement | DVN | 65 min |
| Dec 18, 6:41 AM CST | Special Weather Statement | DVN | 64 min |
| Dec 18, 7:38 AM CST | Special Weather Statement | DVN | 52 min |
| Dec 24, 7:05 PM CST | Dense Fog Advisory | DVN | 9 hr |
| Dec 25, 9:09 AM CST | Dense Fog Advisory | DVN | 24 hr |
| Dec 26, 7:16 PM CST | Dense Fog Advisory | DVN | 41 hr |
| Dec 27, 1:50 PM CST | Wind Advisory | DVN | 44 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 archive20242026
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. Warning verification from the Mesonet's Cow. Rebuilt daily.