Alert archive / Iowa / Cass County
Weather alerts in Cass County, Iowa, 2017
105 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cass County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 105
- Warnings
- 23
- Watches
- 14
- Advisories
- 29
- Busiest month
- June19 alerts
- Busiest day
- May 17, 20178 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 2, 6:56 PM CST | Dense Fog Advisory | DMX | 3 hr |
| Jan 10, 9:48 AM CST | Wind Advisory | DMX | 8 hr |
| Jan 12, 3:11 PM CST | Winter Storm Watch | DMX | 49 hr |
| Jan 14, 4:13 PM CST | Ice Storm Warning | DMX | 48 hr |
| Jan 16, 3:59 PM CST | Dense Fog Advisory | DMX | 13 hr |
| Jan 18, 9:28 PM CST | Dense Fog Advisory | DMX | 15 hr |
| Jan 19, 3:28 PM CST | Dense Fog Advisory | DMX | 21 hr |
| Jan 20, 3:31 PM CST | Dense Fog Advisory | DMX | 20 hr |
| Jan 21, 3:53 PM CST | Dense Fog Advisory | DMX | 20 hr |
| Feb 7, 3:48 PM CST | Winter Weather Advisory | DMX | 20 hr |
| Feb 23, 4:31 AM CST | Winter Weather Advisory | DMX | 43 hr |
| Feb 23, 9:48 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 23, 11:14 PM CST | Special Weather Statement | DMX | 46 min |
| Feb 23, 11:22 PM CST | Severe Thunderstorm Warning | DMX | 23 min |
| Mar 6, 4:25 AM CST | Wind Advisory | DMX | 24 hr |
| Mar 6, 1:08 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Mar 6, 1:54 PM CST | Tornado Watch | SPC | 8 hr |
| Mar 6, 3:29 PM CST | Wind Advisory | DMX | 27 hr |
| Mar 6, 3:35 PM CST | Mesoscale Discussion | SPC | 115 min |
| Mar 6, 5:07 PM CST | Severe Thunderstorm Warning | DMX | 68 min |
| Mar 6, 5:53 PM CST | Severe Thunderstorm Warning | DMX | 52 min |
| Mar 6, 6:03 PM CST | Severe Thunderstorm Warning | DMX | 42 min |
| Mar 6, 6:11 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 7, 4:00 AM CST | Red Flag Warning | DMX | 14 hr |
| Apr 15, 4:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 15, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 15, 7:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 18, 2:08 PM CDT | Flash Flood Watch | DMX | 19 hr |
| Apr 19, 3:23 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 5:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 19, 8:45 PM CDT | Severe Thunderstorm Warning | DMX | 25 min |
| May 10, 6:59 AM CDT | Special Weather Statement | DMX | 61 min |
| May 16, 3:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 16, 7:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 16, 7:53 PM CDT | Severe Thunderstorm Warning | DMX | 37 min |
| May 16, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | 38 min |
| May 16, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 17, 11:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 17, 12:08 PM CDT | Tornado Watch | SPC | 7 hr |
| May 17, 2:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| May 17, 3:46 PM CDT | Severe Thunderstorm Warning | DMX | 44 min |
| May 18, 10:13 PM CDT | Special Weather Statement | DMX | 47 min |
| May 22, 6:30 PM CDT | Special Weather Statement | DMX | 60 min |
| May 27, 8:59 AM CDT | Special Weather Statement | DMX | 61 min |
| May 27, 9:04 AM CDT | Severe Thunderstorm Warning | DMX | 28 min |
| May 27, 9:58 AM CDT | Special Weather Statement | DMX | 47 min |
| Jun 13, 9:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 14, 6:27 AM CDT | Special Weather Statement | DMX | 33 min |
| Jun 14, 6:39 AM CDT | Severe Thunderstorm Warning | DMX | 51 min |
| Jun 15, 5:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 15, 6:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | 40 min |
| Jun 15, 7:24 PM CDT | Severe Thunderstorm Warning | DMX | 21 min |
| Jun 15, 9:45 PM CDT | Severe Thunderstorm Warning | DMX | 60 min |
| Jun 16, 6:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 16, 7:52 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 16, 8:36 PM CDT | Severe Thunderstorm Warning | DMX | 54 min |
| Jun 22, 9:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 2:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 2:53 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 28, 4:22 PM CDT | Tornado Warning | DMX | 23 min |
| Jun 28, 5:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 29, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 6:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 29, 9:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 11, 1:54 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 11, 4:21 AM CDT | Heat Advisory | DMX | 16 hr |
| Jul 17, 2:58 PM CDT | Excessive Heat Watch | DMX | 24 hr |
| Jul 18, 2:58 PM CDT | Excessive Heat Warning | DMX | 4 days |
| Jul 22, 3:59 AM CDT | Heat Advisory | DMX | 16 hr |
| Jul 26, 3:37 AM CDT | Flash Flood Watch | DMX | 17 hr |
| Aug 3, 3:38 AM CDT | Special Weather Statement | OAX | 22 min |
| Aug 20, 11:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Aug 21, 1:53 AM CDT | Special Weather Statement | DMX | 22 min |
| Aug 21, 2:07 AM CDT | Severe Thunderstorm Warning | DMX | 53 min |
| Aug 21, 2:46 AM CDT | Severe Thunderstorm Warning | DMX | 44 min |
| Aug 21, 5:03 PM CDT | Special Weather Statement | DMX | 57 min |
| Aug 26, 1:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 3, 5:41 AM CDT | Dense Fog Advisory | DMX | 3 hr |
| Sep 22, 10:20 AM CDT | Heat Advisory | DMX | 9 hr |
| Oct 6, 4:07 AM CDT | Flash Flood Watch | DMX | 23 hr |
| Oct 6, 3:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 6, 8:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Oct 6, 9:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Oct 14, 4:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 15, 3:27 PM CDT | Frost Advisory | DMX | 17 hr |
| Oct 21, 2:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 21, 4:42 PM CDT | Special Weather Statement | DMX | 93 min |
| Oct 22, 3:10 PM CDT | Wind Advisory | DMX | 51 hr |
| Oct 26, 3:38 PM CDT | Freeze Warning | DMX | 17 hr |
| Oct 27, 4:39 AM CDT | Freeze Warning | DMX | 29 hr |
| Nov 12, 9:36 PM CST | Dense Fog Advisory | DMX | 14 hr |
| Nov 17, 7:39 PM CST | Dense Fog Advisory | DMX | 4 hr |
| Dec 3, 3:41 PM CST | Wind Advisory | DMX | 39 hr |
| Dec 11, 3:24 AM CST | Wind Advisory | DMX | 15 hr |
| Dec 12, 3:57 PM CST | Wind Advisory | DMX | 26 hr |
| Dec 18, 5:04 AM CST | Dense Fog Advisory | DMX | 4 hr |
| Dec 18, 9:06 AM CST | Dense Fog Advisory | DMX | 34 min |
| Dec 21, 3:54 AM CST | Winter Weather Advisory | DMX | 19 hr |
| Dec 23, 3:58 AM CST | Winter Weather Advisory | DMX | 32 hr |
| Dec 26, 1:53 PM CST | Wind Chill Advisory | DMX | 20 hr |
| Dec 28, 3:25 PM CST | Winter Weather Advisory | DMX | 30 hr |
| Dec 29, 3:50 PM CST | Wind Chill Warning | DMX | 4 days |
| Dec 29, 3:50 PM CST | Wind Chill Advisory | DMX | 38 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 | 16 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Watch | 3 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.