Alert archive / Iowa / Mills County
Weather alerts in Mills County, Iowa, 2022
127 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mills County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 127
- Warnings
- 41
- Watches
- 19
- Advisories
- 39
- Busiest month
- June31 alerts
- Busiest day
- June 15, 202214 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 3 tornado warnings covering Mills County in 2022 had a tornado report inside them.
Mills County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 27 | 19 | 30% | 12 | 92% | 16 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Omaha, NE: tornado warnings | 37 | 7 | 81% | 18 | 56% | 15 min |
| NWS Omaha, NE: severe thunderstorm warnings | 293 | 159 | 46% | 463 | 84% | 21 min |
| NWS Omaha, NE: flash flood warnings | 8 | 3 | 63% | 8 | 75% | 23 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, 4:26 AM CST | Wind Chill Advisory | OAX | 29 hr |
| Jan 4, 3:14 AM CST | Wind Advisory | OAX | 27 hr |
| Jan 4, 2:42 PM CST | Wind Chill Advisory | OAX | 45 hr |
| Jan 13, 2:55 PM CST | Winter Weather Advisory | OAX | 42 hr |
| Jan 19, 2:53 AM CST | Wind Chill Advisory | OAX | 30 hr |
| Feb 2, 2:56 AM CST | Wind Chill Advisory | OAX | 31 hr |
| Feb 21, 2:46 AM CST | Winter Weather Advisory | OAX | 36 hr |
| Feb 22, 2:29 AM CST | Wind Chill Advisory | OAX | 34 hr |
| Mar 5, 11:10 AM CST | Special Weather Statement | OAX | 35 min |
| Mar 5, 1:20 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 5, 2:04 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 5, 2:33 PM CST | Severe Thunderstorm Warning | OAX | 42 min |
| Mar 5, 2:57 PM CST | Severe Thunderstorm Warning | OAX | 34 min |
| Mar 6, 2:38 PM CST | Winter Weather Advisory | OAX | 17 hr |
| Mar 9, 2:50 AM CST | Winter Weather Advisory | OAX | 36 hr |
| Mar 17, 8:22 PM CDT | Winter Weather Advisory | OAX | 17 hr |
| Mar 24, 3:11 PM CDT | Red Flag Warning | OAX | 29 hr |
| Mar 24, 3:14 PM CDT | Wind Advisory | OAX | 28 hr |
| Mar 29, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 29, 5:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 29, 5:33 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 29, 8:04 PM CDT | Severe Thunderstorm Warning | OAX | 26 min |
| Apr 6, 3:11 AM CDT | Wind Advisory | OAX | 42 hr |
| Apr 11, 3:55 PM CDT | Wind Advisory | OAX | 37 hr |
| Apr 12, 6:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 12, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 12, 7:55 PM CDT | Severe Thunderstorm Warning | OAX | 50 min |
| Apr 12, 8:34 PM CDT | Severe Thunderstorm Warning | OAX | 56 min |
| Apr 12, 8:37 PM CDT | Tornado Warning | OAX | 23 min |
| Apr 12, 9:25 PM CDT | Severe Thunderstorm Warning | OAX | 65 min |
| Apr 13, 3:33 AM CDT | Fire Weather Watch | OAX | 24 hr |
| Apr 13, 3:12 PM CDT | Wind Advisory | OAX | 28 hr |
| Apr 14, 3:17 AM CDT | Red Flag Warning | OAX | 18 hr |
| Apr 18, 3:42 AM CDT | Red Flag Warning | OAX | 16 hr |
| Apr 20, 11:08 PM CDT | Dense Fog Advisory | OAX | 12 hr |
| Apr 21, 11:16 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 22, 1:53 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 22, 3:29 PM CDT | Wind Advisory | OAX | 31 hr |
| Apr 23, 5:01 AM CDT | Severe Thunderstorm Warning | OAX | 29 min |
| Apr 23, 10:19 AM CDT | High Wind Warning | OAX | 9 hr |
| Apr 23, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 29, 7:27 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 29, 8:26 PM CDT | Severe Thunderstorm Warning | OAX | 37 min |
| Apr 29, 8:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 12, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 17, 1:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 2:41 PM CDT | Special Weather Statement | OAX | 34 min |
| May 17, 11:52 PM CDT | Severe Thunderstorm Warning | OAX | 53 min |
| May 18, 12:09 AM CDT | Areal Flood Advisory | OAX | 2 hr |
| May 19, 7:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 19, 8:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 30, 3:35 AM CDT | Wind Advisory | OAX | 19 hr |
| May 30, 5:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 30, 1:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 7:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 30, 9:04 PM CDT | Severe Thunderstorm Warning | OAX | 41 min |
| May 30, 9:22 PM CDT | Severe Thunderstorm Warning | OAX | 23 min |
| May 30, 9:38 PM CDT | Severe Thunderstorm Warning | OAX | 52 min |
| May 30, 9:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 30, 10:05 PM CDT | Severe Thunderstorm Warning | OAX | 40 min |
| Jun 6, 4:09 AM CDT | Dense Fog Advisory | OAX | 6 hr |
| Jun 7, 6:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 7:52 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| Jun 7, 8:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 7, 8:22 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| Jun 7, 8:53 PM CDT | Severe Thunderstorm Warning | OAX | 67 min |
| Jun 7, 9:28 PM CDT | Areal Flood Advisory | OAX | 3 hr |
| Jun 11, 2:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 11, 3:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 11, 5:25 PM CDT | Severe Thunderstorm Warning | OAX | 65 min |
| Jun 11, 6:07 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| Jun 12, 2:46 PM CDT | Heat Advisory | OAX | 52 hr |
| Jun 14, 8:35 PM CDT | Severe Thunderstorm Warning | OAX | 40 min |
| Jun 14, 8:46 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 9:07 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| Jun 14, 9:23 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 14, 11:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 14, 11:39 PM CDT | Severe Thunderstorm Warning | OAX | 51 min |
| Jun 15, 12:02 AM CDT | Severe Thunderstorm Warning | OAX | 43 min |
| Jun 15, 12:08 AM CDT | Areal Flood Advisory | OAX | 58 min |
| Jun 15, 12:11 AM CDT | Tornado Warning | OAX | 17 min |
| Jun 15, 12:22 AM CDT | Tornado Warning | OAX | 21 min |
| Jun 15, 12:40 AM CDT | Severe Thunderstorm Warning | OAX | 22 min |
| Jun 15, 1:00 AM CDT | Flash Flood Warning | OAX | 3 hr |
| Jun 15, 1:52 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 15, 3:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 16, 2:25 PM CDT | Excessive Heat Watch | OAX | 37 hr |
| Jun 16, 9:24 PM CDT | Severe Thunderstorm Warning | OAX | 36 min |
| Jun 16, 9:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 16, 10:37 PM CDT | Severe Thunderstorm Warning | OAX | 13 min |
| Jun 17, 4:08 PM CDT | Heat Advisory | OAX | 3 days |
| Jul 3, 2:59 PM CDT | Heat Advisory | OAX | 53 hr |
| Jul 5, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 5, 7:17 PM CDT | Special Weather Statement | OAX | 43 min |
| Jul 6, 2:57 PM CDT | Flood Watch | OAX | 18 hr |
| Jul 7, 7:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 14, 2:57 PM CDT | Heat Advisory | OAX | 29 hr |
| Jul 22, 3:14 AM CDT | Heat Advisory | OAX | 41 hr |
| Aug 1, 2:44 AM CDT | Heat Advisory | OAX | 41 hr |
| Aug 5, 3:28 AM CDT | Heat Advisory | OAX | 42 hr |
| Aug 5, 3:17 PM CDT | Excessive Heat Warning | OAX | 30 hr |
| Aug 6, 3:23 PM CDT | Heat Advisory | OAX | 29 hr |
| Sep 17, 5:11 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Sep 17, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 17, 7:17 PM CDT | Severe Thunderstorm Warning | OAX | 43 min |
| Sep 17, 7:53 PM CDT | Severe Thunderstorm Warning | OAX | 52 min |
| Sep 17, 10:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Sep 24, 2:31 AM CDT | Dense Fog Advisory | OAX | 6 hr |
| Oct 7, 3:24 AM CDT | Freeze Warning | OAX | 30 hr |
| Oct 11, 3:47 PM CDT | Fire Weather Watch | OAX | 19 hr |
| Oct 11, 3:47 PM CDT | Fire Weather Watch | OAX | 23 hr |
| Oct 11, 11:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Oct 11, 11:51 PM CDT | Special Weather Statement | OAX | 24 min |
| Oct 12, 3:36 AM CDT | Red Flag Warning | OAX | 15 hr |
| Oct 12, 2:48 PM CDT | Red Flag Warning | OAX | 28 hr |
| Oct 22, 3:05 PM CDT | Wind Advisory | OAX | 35 hr |
| Nov 28, 2:43 AM CST | Winter Weather Advisory | OAX | 39 hr |
| Dec 1, 3:41 PM CST | Wind Advisory | OAX | 32 hr |
| Dec 19, 3:56 AM CST | Winter Storm Watch | OAX | 34 hr |
| Dec 19, 7:25 AM CST | Winter Weather Advisory | OAX | 5 hr |
| Dec 19, 12:15 PM CST | Winter Weather Advisory | OAX | 6 hr |
| Dec 19, 1:44 PM CST | Wind Chill Warning | OAX | 5 days |
| Dec 20, 1:58 PM CST | Winter Storm Warning | OAX | 40 hr |
| Dec 20, 1:58 PM CST | Winter Weather Advisory | OAX | 3 days |
| Dec 21, 11:48 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 23, 1:54 PM CST | Wind Chill Advisory | OAX | 21 hr |
| Dec 24, 3:09 PM CST | Wind Chill Advisory | OAX | 17 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 archive20212023
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.