Alert archive / Iowa / Lyon County
Weather alerts in Lyon County, Iowa, 2012
110 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lyon County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 110
- Warnings
- 29
- Watches
- 17
- Advisories
- 41
- Busiest month
- May42 alerts
- Busiest day
- May 27, 20128 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 10, 2:38 PM CST | Wind Advisory | FSD | 27 hr |
| Jan 18, 3:15 PM CST | Winter Weather Advisory | FSD | 47 hr |
| Jan 22, 3:30 AM CST | Winter Weather Advisory | FSD | 27 hr |
| Jan 24, 2:47 PM CST | Winter Weather Advisory | FSD | 11 hr |
| Jan 25, 8:27 AM CST | Dense Fog Advisory | FSD | 4 hr |
| Feb 5, 11:52 PM CST | Dense Fog Advisory | FSD | 11 hr |
| Feb 13, 8:59 PM CST | Dense Fog Advisory | FSD | 13 hr |
| Feb 19, 3:43 PM CST | Winter Weather Advisory | FSD | 29 hr |
| Feb 22, 11:03 AM CST | Winter Storm Watch | FSD | 5 hr |
| Feb 22, 4:02 PM CST | Winter Storm Warning | FSD | 29 hr |
| Feb 22, 4:02 PM CST | Winter Weather Advisory | FSD | 7 hr |
| Feb 25, 8:49 PM CST | Wind Advisory | FSD | 21 hr |
| Feb 26, 4:06 AM CST | Winter Storm Watch | FSD | 23 hr |
| Feb 27, 3:25 AM CST | Winter Weather Advisory | FSD | 57 hr |
| Feb 28, 6:18 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 28, 11:43 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 28, 2:30 PM CST | Wind Advisory | FSD | 28 hr |
| Mar 16, 5:35 AM CDT | Dense Fog Advisory | FSD | 5 hr |
| Mar 19, 1:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Mar 23, 1:28 AM CDT | Dense Fog Advisory | FSD | 9 hr |
| Mar 26, 3:28 AM CDT | Wind Advisory | FSD | 40 hr |
| Mar 30, 4:42 AM CDT | Dense Fog Advisory | FSD | 7 hr |
| Apr 1, 3:22 AM CDT | Dense Fog Advisory | FSD | 7 hr |
| Apr 7, 3:15 AM CDT | Wind Advisory | FSD | 16 hr |
| Apr 8, 2:05 PM CDT | Freeze Watch | FSD | 14 hr |
| Apr 9, 3:38 AM CDT | Freeze Warning | FSD | 29 hr |
| Apr 9, 7:41 PM CDT | Freeze Warning | FSD | 37 hr |
| Apr 11, 3:28 PM CDT | Freeze Warning | FSD | 14 hr |
| Apr 14, 3:28 PM CDT | Wind Advisory | FSD | 28 hr |
| Apr 14, 7:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 15, 7:42 PM CDT | High Wind Warning | FSD | 10 hr |
| Apr 16, 3:33 PM CDT | Frost Advisory | FSD | 16 hr |
| Apr 27, 10:41 AM CDT | Wind Advisory | FSD | 11 hr |
| May 1, 2:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 1, 2:59 PM CDT | Tornado Watch | SPC | 6 hr |
| May 1, 6:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 1, 7:12 PM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| May 1, 7:27 PM CDT | Tornado Warning | FSD | 33 min |
| May 1, 7:41 PM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| May 1, 7:57 PM CDT | Tornado Warning | FSD | 33 min |
| May 1, 8:09 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| May 1, 8:40 PM CDT | Flash Flood Warning | FSD | 3 hr |
| May 2, 3:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 3, 2:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 1:50 PM CDT | Mesoscale Discussion | SPC | 25 min |
| May 4, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 4, 3:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 5, 6:49 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 5, 3:06 PM CDT | Flash Flood Watch | FSD | 13 hr |
| May 5, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 5, 10:03 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 5, 11:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 6, 2:12 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 6, 4:45 AM CDT | River Flood Warning | FSD | 4 days |
| May 6, 10:31 AM CDT | River Flood Warning | FSD | 60 hr |
| May 21, 2:51 PM CDT | Wind Advisory | FSD | 29 hr |
| May 23, 3:50 AM CDT | Flash Flood Watch | FSD | 29 hr |
| May 23, 2:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 23, 4:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 7:10 PM CDT | Severe Thunderstorm Warning | FSD | 35 min |
| May 23, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 24, 9:14 AM CDT | River Flood Warning | FSD | 12 hr |
| May 27, 3:42 AM CDT | Flash Flood Watch | FSD | 24 hr |
| May 27, 2:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 27, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 27, 5:58 PM CDT | Severe Thunderstorm Warning | FSD | 32 min |
| May 27, 6:11 PM CDT | Severe Thunderstorm Warning | FSD | 34 min |
| May 27, 6:24 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| May 27, 6:35 PM CDT | Severe Thunderstorm Warning | FSD | 40 min |
| May 27, 6:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 7:22 PM CDT | Flash Flood Warning | FSD | 7 hr |
| May 27, 7:31 PM CDT | Severe Thunderstorm Warning | FSD | 29 min |
| May 27, 7:54 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| May 27, 8:19 PM CDT | Flash Flood Warning | FSD | 7 hr |
| May 28, 5:35 AM CDT | River Flood Warning | FSD | 52 hr |
| Jun 14, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 7:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 2:53 PM CDT | Heat Advisory | FSD | 29 hr |
| Jun 29, 7:59 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 29, 5:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 1, 3:24 PM CDT | Heat Advisory | FSD | 5 days |
| Jul 4, 3:31 PM CDT | Excessive Heat Warning | FSD | 51 hr |
| Jul 13, 1:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 13, 3:42 PM CDT | Heat Advisory | FSD | 3 days |
| Jul 17, 3:31 PM CDT | Heat Advisory | FSD | 28 hr |
| Jul 18, 3:54 PM CDT | Heat Advisory | FSD | 6 days |
| Aug 1, 3:52 AM CDT | Heat Advisory | FSD | 15 hr |
| Aug 3, 6:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 3, 7:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 2:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 23, 7:45 PM CDT | Severe Thunderstorm Warning | FSD | 45 min |
| Aug 26, 2:25 AM CDT | Dense Fog Advisory | FSD | 9 hr |
| Sep 4, 7:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Sep 4, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 4, 8:14 PM CDT | Severe Thunderstorm Warning | FSD | 46 min |
| Sep 4, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | 50 min |
| Sep 17, 3:09 PM CDT | Frost Advisory | FSD | 17 hr |
| Sep 21, 3:41 PM CDT | Freeze Watch | FSD | 11 hr |
| Sep 22, 3:09 AM CDT | Freeze Warning | FSD | 29 hr |
| Oct 3, 3:32 PM CDT | Wind Advisory | FSD | 26 hr |
| Oct 16, 2:46 PM CDT | Wind Advisory | FSD | 61 hr |
| Oct 16, 2:46 PM CDT | Wind Advisory | FSD | 61 hr |
| Oct 23, 5:35 AM CDT | Dense Fog Advisory | FSD | 6 hr |
| Oct 23, 9:40 PM CDT | Dense Fog Advisory | FSD | 6 hr |
| Nov 21, 4:11 AM CST | Wind Advisory | FSD | 50 hr |
| Dec 8, 3:44 PM CST | Wind Advisory | FSD | 29 hr |
| Dec 18, 5:11 AM CST | Winter Weather Advisory | FSD | 7 hr |
| Dec 18, 3:52 PM CST | Winter Weather Advisory | FSD | 44 hr |
| Dec 24, 3:05 AM CST | Wind Chill Advisory | FSD | 33 hr |
| Dec 26, 3:31 PM CST | Winter Weather Advisory | FSD | 36 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 | 13 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 23 |
| Flooding | |
| Flash Flood Warning | 3 |
| River Flood Warning | 4 |
| Flash Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 9 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 13 |
| 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 archive20112013
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.