Alert archive / Iowa / Marion County
Weather alerts in Marion County, Iowa, 2026
151 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Marion County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 151
- Warnings
- 54
- Watches
- 36
- Advisories
- 19
- Busiest month
- June42 alerts
- Busiest day
- June 6, 202616 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 5 tornado warnings covering Marion County in 2026 had a tornado report inside them.
Marion County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 32 | 20 | 38% | 27 | 85% | 26 min |
| Flash flood warnings | 3 | 1 | 67% | 1 | 100% | 16 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Des Moines, IA: tornado warnings | 78 | 21 | 73% | 32 | 81% | 21 min |
| NWS Des Moines, IA: severe thunderstorm warnings | 343 | 160 | 53% | 469 | 84% | 23 min |
| NWS Des Moines, IA: flash flood warnings | 31 | 11 | 65% | 25 | 76% | 92 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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 5, 8:25 PM CST | Dense Fog Advisory | DMX | 19 hr |
| Jan 6, 9:38 PM CST | Dense Fog Advisory | DMX | 11 hr |
| Jan 17, 2:07 PM CST | Cold Weather Advisory | DMX | 46 hr |
| Jan 20, 2:30 PM CST | Extreme Cold Watch | DMX | 45 hr |
| Jan 21, 2:29 AM CST | Wind Advisory | DMX | 12 hr |
| Jan 21, 11:27 AM CST | High Wind Warning | DMX | 8 hr |
| Jan 22, 2:28 AM CST | Extreme Cold Warning | DMX | 34 hr |
| Jan 22, 11:08 AM CST | Cold Weather Advisory | DMX | 40 hr |
| Jan 25, 2:04 AM CST | Cold Weather Advisory | DMX | 31 hr |
| Feb 17, 2:41 PM CST | Fire Weather Watch | DMX | 6 hr |
| Feb 17, 8:15 PM CST | Red Flag Warning | DMX | 23 hr |
| Feb 18, 2:43 PM CST | Winter Weather Advisory | DMX | 42 hr |
| Mar 4, 9:55 PM CST | Dense Fog Advisory | DMX | 11 hr |
| Mar 6, 5:23 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 6, 8:18 PM CST | Tornado Watch | SPC | 6 hr |
| Mar 6, 9:43 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 12, 3:48 AM CDT | High Wind Watch | DMX | 6 hr |
| Mar 12, 10:04 AM CDT | Wind Advisory | DMX | 26 hr |
| Mar 12, 2:20 PM CDT | Winter Storm Watch | DMX | 45 hr |
| Mar 14, 3:09 AM CDT | High Wind Watch | DMX | 8 hr |
| Mar 14, 11:34 AM CDT | Blizzard Warning | DMX | 43 hr |
| Mar 14, 11:37 AM CDT | High Wind Warning | DMX | 40 hr |
| Mar 16, 5:37 AM CDT | Winter Weather Advisory | DMX | 4 hr |
| Mar 26, 1:42 PM CDT | Fire Weather Watch | DMX | 22 hr |
| Mar 26, 1:42 PM CDT | Red Flag Warning | DMX | 31 hr |
| Mar 27, 11:52 AM CDT | Red Flag Warning | DMX | 33 hr |
| Mar 30, 8:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 30, 9:21 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 30, 11:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 2, 12:28 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 2, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 2, 2:24 PM CDT | Severe Thunderstorm Warning | DMX | 41 min |
| Apr 2, 2:45 PM CDT | Severe Thunderstorm Warning | DMX | 45 min |
| Apr 8, 1:56 AM CDT | Wind Advisory | DMX | 16 hr |
| Apr 14, 12:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 2:33 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 14, 7:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 9:56 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 14, 11:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 15, 1:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 15, 10:22 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 3:40 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 15, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | 47 min |
| Apr 15, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | 36 min |
| Apr 15, 6:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 17, 2:25 PM CDT | Severe Thunderstorm Warning | DMX | 50 min |
| Apr 17, 2:47 PM CDT | Severe Thunderstorm Warning | DMX | 43 min |
| Apr 17, 2:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 17, 2:57 PM CDT | Severe Thunderstorm Warning | DMX | 11 min |
| Apr 17, 3:03 PM CDT | Tornado Warning | DMX | 11 min |
| Apr 17, 3:10 PM CDT | Severe Thunderstorm Warning | DMX | 50 min |
| Apr 17, 3:16 PM CDT | Tornado Warning | DMX | 29 min |
| Apr 19, 2:13 AM CDT | Frost Advisory | DMX | 31 hr |
| Apr 23, 5:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 23, 5:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 23, 7:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 23, 8:24 PM CDT | Severe Thunderstorm Warning | DMX | 66 min |
| Apr 23, 8:38 PM CDT | Severe Thunderstorm Warning | DMX | 52 min |
| Apr 23, 8:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 23, 9:02 PM CDT | Severe Thunderstorm Warning | DMX | 58 min |
| Apr 23, 9:40 PM CDT | Severe Thunderstorm Warning | DMX | 65 min |
| May 1, 2:34 AM CDT | Frost Advisory | DMX | 29 hr |
| May 15, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 15, 8:06 PM CDT | Severe Thunderstorm Warning | DMX | 39 min |
| May 15, 10:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 10:08 PM CDT | High Wind Warning | DMX | 5 hr |
| May 17, 7:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 17, 8:07 PM CDT | Tornado Watch | SPC | 5 hr |
| May 17, 9:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 18, 3:49 PM CDT | Tornado Watch | SPC | 6 hr |
| May 18, 7:39 PM CDT | Tornado Warning | DMX | 41 min |
| May 18, 8:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 4, 3:54 AM CDT | Flood Watch | DMX | 27 hr |
| Jun 5, 12:43 PM CDT | Flood Watch | DMX | 17 hr |
| Jun 5, 8:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 5, 9:15 PM CDT | Special Weather Statement | DMX | 30 min |
| Jun 5, 9:27 PM CDT | Severe Thunderstorm Warning | DMX | 48 min |
| Jun 5, 9:33 PM CDT | Tornado Warning | DMX | 42 min |
| Jun 5, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 5, 10:09 PM CDT | Tornado Warning | DMX | 45 min |
| Jun 5, 10:18 PM CDT | Severe Thunderstorm Warning | DMX | 57 min |
| Jun 5, 10:44 PM CDT | Flash Flood Warning | DMX | 4 hr |
| Jun 5, 10:59 PM CDT | Severe Thunderstorm Warning | DMX | 61 min |
| Jun 5, 11:25 PM CDT | Severe Thunderstorm Warning | DMX | 65 min |
| Jun 5, 11:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 5, 11:42 PM CDT | Flash Flood Warning | DMX | 3 hr |
| Jun 5, 11:50 PM CDT | Severe Thunderstorm Warning | DMX | 55 min |
| Jun 6, 12:01 AM CDT | Severe Thunderstorm Warning | DMX | 59 min |
| Jun 6, 1:33 AM CDT | Flash Flood Warning | DMX | 5 hr |
| Jun 6, 12:59 PM CDT | Areal Flood Warning | DMX | 20 hr |
| Jun 7, 10:37 PM CDT | Flood Watch | DMX | 9 hr |
| Jun 8, 2:11 PM CDT | Heat Advisory | DMX | 30 hr |
| Jun 10, 7:43 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 11:02 AM CDT | Flood Watch | DMX | 29 hr |
| Jun 10, 1:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 3:22 PM CDT | Severe Thunderstorm Warning | DMX | 38 min |
| Jun 10, 3:57 PM CDT | Severe Thunderstorm Warning | DMX | 63 min |
| Jun 10, 7:00 PM CDT | Severe Thunderstorm Warning | DMX | 30 min |
| Jun 10, 10:01 PM CDT | Areal Flood Warning | DMX | 35 hr |
| Jun 11, 2:13 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 11, 6:33 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 11, 7:31 AM CDT | Tornado Watch | SPC | 7 hr |
| Jun 11, 7:38 AM CDT | Severe Thunderstorm Warning | DMX | 52 min |
| Jun 11, 7:44 AM CDT | Severe Thunderstorm Warning | DMX | 46 min |
| Jun 11, 8:25 AM CDT | Severe Thunderstorm Warning | DMX | 65 min |
| Jun 11, 1:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 12, 8:57 AM CDT | Areal Flood Warning | DMX | 36 hr |
| Jun 13, 9:07 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 2:36 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 3:55 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 5:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 6:50 AM CDT | Severe Thunderstorm Warning | DMX | 55 min |
| Jun 27, 1:18 AM CDT | Extreme Heat Watch | DMX | 24 hr |
| Jun 27, 12:50 PM CDT | Extreme Heat Warning | DMX | 6 days |
| Jul 1, 2:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 2, 1:05 PM CDT | Flood Watch | DMX | 42 hr |
| Jul 3, 6:16 AM CDT | River Flood Watch | DMX | 24 hr |
| Jul 3, 7:38 AM CDT | Special Weather Statement | DMX | 37 min |
| Jul 4, 2:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:41 AM CDT | Severe Thunderstorm Warning | DMX | 49 min |
| Jul 4, 6:39 AM CDT | River Flood Warning | DMX | 4 days |
| Jul 19, 12:53 PM CDT | Heat Advisory | DMX | 31 hr |
| Jul 20, 3:03 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 20, 6:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 20, 7:11 PM CDT | Severe Thunderstorm Warning | DMX | 49 min |
| Jul 20, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | 45 min |
| Jul 20, 8:21 PM CDT | Severe Thunderstorm Warning | DMX | 28 min |
| Jul 20, 9:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 24, 2:27 AM CDT | Extreme Heat Watch | DMX | 57 hr |
| Jul 25, 2:53 AM CDT | Extreme Heat Warning | DMX | 67 hr |
| Jul 25, 4:48 AM CDT | Dense Fog Advisory | DMX | 5 hr |
| Jul 27, 12:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 7, 2:52 AM CDT | Dense Fog Advisory | DMX | 6 hr |
| Aug 7, 1:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 7, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 7, 8:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 12, 4:37 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 12, 7:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 2:53 AM CDT | Flood Watch | DMX | 55 hr |
| Aug 13, 5:47 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 13, 7:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 2:20 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 30, 1:32 PM CDT | Heat Advisory | DMX | 6 days |
| Sep 8, 2:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Sep 8, 6:21 PM CDT | Severe Thunderstorm Warning | DMX | 39 min |
| Sep 8, 6:55 PM CDT | Severe Thunderstorm Warning | DMX | 50 min |
| Sep 8, 7:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Sep 13, 8:19 PM CDT | Flood Watch | DMX | 3 days |
| Sep 14, 9:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Sep 16, 8:20 PM CDT | Dense Fog Advisory | DMX | 14 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 archive2025
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.