Alert archive / Colorado / Larimer County
Weather alerts in Larimer County, Colorado, 2024
157 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Larimer County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 157
- Warnings
- 49
- Watches
- 30
- Advisories
- 49
- Busiest month
- August22 alerts
- Busiest day
- July 21, 20245 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 3, 2:25 PM MST | Dense Fog Advisory | BOU | 19 hr |
| Jan 8, 1:41 PM MST | Winter Weather Advisory | BOU | 45 hr |
| Jan 10, 1:41 PM MST | Winter Weather Advisory | BOU | 22 hr |
| Jan 11, 3:10 AM MST | Wind Chill Watch | BOU | 23 hr |
| Jan 11, 3:10 AM MST | Winter Storm Watch | BOU | 9 hr |
| Jan 11, 11:59 AM MST | Winter Storm Warning | BOU | 4 days |
| Jan 12, 2:10 AM MST | Wind Chill Warning | BOU | 4 days |
| Jan 16, 3:53 AM MST | Winter Storm Watch | BOU | 11 hr |
| Jan 16, 3:53 AM MST | Winter Storm Warning | BOU | 61 hr |
| Jan 16, 3:53 AM MST | Winter Weather Advisory | BOU | 55 hr |
| Jan 16, 2:05 PM MST | High Wind Warning | BOU | 17 hr |
| Feb 1, 2:13 AM MST | Winter Storm Watch | BOU | 12 hr |
| Feb 1, 2:09 PM MST | Winter Storm Warning | BOU | 54 hr |
| Feb 1, 2:09 PM MST | Winter Weather Advisory | BOU | 54 hr |
| Feb 7, 3:32 AM MST | Winter Weather Advisory | BOU | 35 hr |
| Feb 7, 3:33 AM MST | High Wind Watch | BOU | 10 hr |
| Feb 7, 1:34 PM MST | High Wind Warning | BOU | 13 hr |
| Feb 8, 2:30 PM MST | Winter Storm Watch | BOU | 22 hr |
| Feb 9, 12:47 PM MST | Winter Weather Advisory | BOU | 40 hr |
| Feb 14, 2:18 PM MST | Winter Weather Advisory | BOU | 63 hr |
| Feb 15, 2:22 AM MST | Dense Fog Advisory | BOU | 8 hr |
| Feb 24, 1:49 AM MST | Red Flag Warning | BOU | 16 hr |
| Feb 24, 12:31 PM MST | Winter Storm Watch | BOU | 24 hr |
| Feb 24, 1:43 PM MST | Red Flag Warning | BOU | 34 hr |
| Feb 25, 12:59 PM MST | Winter Storm Warning | BOU | 58 hr |
| Feb 25, 1:32 PM MST | Red Flag Warning | BOU | 28 hr |
| Feb 27, 5:11 AM MST | Snow Squall Warning | BOU | 64 min |
| Mar 1, 5:42 AM MST | Winter Storm Watch | BOU | 9 hr |
| Mar 1, 6:46 AM MST | Red Flag Warning | BOU | 36 hr |
| Mar 1, 2:21 PM MST | Winter Storm Warning | BOU | 67 hr |
| Mar 3, 4:19 AM MST | Red Flag Warning | BOU | 14 hr |
| Mar 4, 8:48 AM MST | Winter Weather Advisory | BOU | 15 hr |
| Mar 6, 1:50 AM MST | Winter Storm Watch | BOU | 24 hr |
| Mar 7, 1:50 AM MST | Winter Weather Advisory | BOU | 39 hr |
| Mar 11, 2:29 PM MDT | Winter Storm Watch | BOU | 47 hr |
| Mar 12, 4:17 AM MDT | Winter Weather Advisory | BOU | 3 days |
| Mar 12, 2:12 PM MDT | Winter Storm Warning | BOU | 64 hr |
| Mar 23, 3:22 AM MDT | Winter Weather Advisory | BOU | 57 hr |
| Mar 23, 2:55 PM MDT | High Wind Watch | BOU | 23 hr |
| Mar 24, 1:55 PM MDT | High Wind Warning | BOU | 19 hr |
| Apr 4, 4:25 AM MDT | Red Flag Warning | BOU | 41 hr |
| Apr 4, 2:58 PM MDT | High Wind Watch | BOU | 36 hr |
| Apr 5, 2:52 AM MDT | Winter Weather Advisory | BOU | 57 hr |
| Apr 5, 11:50 AM MDT | High Wind Warning | BOU | 54 hr |
| Apr 5, 1:37 PM MDT | Red Flag Warning | BOU | 53 hr |
| Apr 14, 2:26 PM MDT | Winter Storm Watch | BOU | 12 hr |
| Apr 15, 2:42 AM MDT | Winter Storm Warning | BOU | 36 hr |
| Apr 15, 3:15 AM MDT | High Wind Watch | BOU | 11 hr |
| Apr 15, 2:18 PM MDT | High Wind Warning | BOU | 28 hr |
| Apr 19, 3:22 AM MDT | Winter Weather Advisory | BOU | 30 hr |
| Apr 20, 2:00 PM MDT | Dense Fog Advisory | BOU | 19 hr |
| Apr 25, 1:51 PM MDT | Winter Storm Watch | BOU | 24 hr |
| Apr 26, 1:36 PM MDT | Winter Storm Warning | BOU | 34 hr |
| May 5, 3:13 AM MDT | Winter Weather Advisory | BOU | 39 hr |
| May 5, 3:14 AM MDT | High Wind Watch | BOU | 11 hr |
| May 5, 1:59 PM MDT | High Wind Warning | BOU | 37 hr |
| May 6, 1:24 PM MDT | Freeze Watch | BOU | 23 hr |
| May 7, 3:09 AM MDT | Winter Weather Advisory | BOU | 21 hr |
| May 7, 4:07 PM MDT | Frost Advisory | BOU | 16 hr |
| May 13, 3:40 PM MDT | Special Weather Statement | BOU | 35 min |
| May 21, 7:03 PM MDT | Frost Advisory | BOU | 13 hr |
| May 25, 3:32 PM MDT | Special Weather Statement | BOU | 43 min |
| May 28, 6:26 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| May 28, 7:04 PM MDT | Flash Flood Warning | BOU | 3 hr |
| May 28, 7:30 PM MDT | Special Weather Statement | BOU | 30 min |
| May 28, 11:00 PM MDT | Severe Thunderstorm Warning | BOU | 20 min |
| Jun 8, 12:26 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 8, 1:15 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Jun 8, 5:24 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jun 13, 12:53 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 13, 6:07 PM MDT | Special Weather Statement | BOU | 23 min |
| Jun 13, 9:42 PM MDT | Special Weather Statement | BOU | 48 min |
| Jun 14, 2:10 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 20, 3:03 PM MDT | Special Weather Statement | BOU | 42 min |
| Jun 20, 3:33 PM MDT | Severe Thunderstorm Warning | BOU | 27 min |
| Jun 21, 1:27 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 1:17 PM MDT | Special Weather Statement | BOU | 43 min |
| Jun 24, 2:39 PM MDT | Special Weather Statement | BOU | 51 min |
| Jun 25, 2:35 PM MDT | Special Weather Statement | BOU | 25 min |
| Jun 25, 3:12 PM MDT | Special Weather Statement | BOU | 33 min |
| Jun 26, 2:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 7:20 PM MDT | Special Weather Statement | BOU | 25 min |
| Jun 28, 4:08 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jun 30, 1:12 PM MDT | Areal Flood Advisory | BOU | 118 min |
| Jul 7, 2:12 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 10, 12:24 PM MDT | Heat Advisory | BOU | 56 hr |
| Jul 10, 12:24 PM MDT | Heat Advisory | BOU | 3 days |
| Jul 10, 12:24 PM MDT | Heat Advisory | BOU | 4 days |
| Jul 13, 7:59 PM MDT | Fire Weather Watch | BOU | 8 hr |
| Jul 14, 4:25 AM MDT | Red Flag Warning | BOU | 17 hr |
| Jul 17, 12:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 19, 1:17 PM MDT | Special Weather Statement | BOU | 28 min |
| Jul 20, 7:11 PM MDT | Special Weather Statement | BOU | 34 min |
| Jul 20, 7:22 PM MDT | Severe Thunderstorm Warning | BOU | 23 min |
| Jul 20, 7:43 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jul 20, 7:49 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jul 21, 3:23 PM MDT | Special Weather Statement | CYS | 52 min |
| Jul 27, 3:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 29, 2:41 AM MDT | Heat Advisory | BOU | 41 hr |
| Jul 30, 3:02 AM MDT | Red Flag Warning | BOU | 17 hr |
| Jul 30, 7:58 PM MDT | Red Flag Warning | BOU | 4 hr |
| Aug 2, 1:42 PM MDT | Heat Advisory | BOU | 54 hr |
| Aug 5, 2:45 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 7, 2:06 PM MDT | Flash Flood Warning | BOU | 4 hr |
| Aug 7, 2:57 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| Aug 8, 1:54 AM MDT | Special Weather Statement | CYS | 51 min |
| Aug 10, 12:55 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Aug 10, 1:16 PM MDT | Special Weather Statement | BOU | 29 min |
| Aug 10, 2:04 PM MDT | Areal Flood Advisory | BOU | 116 min |
| Aug 12, 9:50 AM MDT | Flood Watch | BOU | 14 hr |
| Aug 12, 12:20 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 12, 1:40 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 12, 1:55 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Aug 12, 2:52 PM MDT | Flash Flood Warning | BOU | 2 hr |
| Aug 12, 7:58 PM MDT | Special Weather Statement | BOU | 47 min |
| Aug 12, 7:59 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Aug 13, 10:29 AM MDT | Flood Watch | BOU | 10 hr |
| Aug 13, 3:23 PM MDT | Special Weather Statement | BOU | 52 min |
| Aug 13, 3:44 PM MDT | Areal Flood Advisory | BOU | 101 min |
| Aug 17, 6:22 PM MDT | Special Weather Statement | CYS | 38 min |
| Aug 21, 5:58 PM MDT | Special Weather Statement | CYS | 47 min |
| Aug 23, 1:23 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Aug 25, 3:57 PM MDT | Special Weather Statement | BOU | 33 min |
| Sep 4, 12:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Sep 10, 2:01 PM MDT | Fire Weather Watch | BOU | 24 hr |
| Sep 11, 2:14 PM MDT | Red Flag Warning | BOU | 30 hr |
| Sep 17, 10:33 AM MDT | Mesoscale Discussion | SPC | 117 min |
| Sep 20, 2:51 PM MDT | Winter Weather Advisory | BOU | 42 hr |
| Oct 1, 3:56 AM MDT | Fire Weather Watch | BOU | 11 hr |
| Oct 1, 2:33 PM MDT | Red Flag Warning | BOU | 28 hr |
| Oct 3, 12:38 PM MDT | Frost Advisory | BOU | 19 hr |
| Oct 3, 2:18 PM MDT | Fire Weather Watch | BOU | 23 hr |
| Oct 3, 2:18 PM MDT | Red Flag Warning | BOU | 29 hr |
| Oct 4, 1:27 PM MDT | Red Flag Warning | BOU | 30 hr |
| Oct 21, 2:05 AM MDT | Winter Weather Advisory | BOU | 10 hr |
| Oct 24, 2:56 AM MDT | Frost Advisory | BOU | 30 hr |
| Oct 24, 3:04 AM MDT | Red Flag Warning | BOU | 15 hr |
| Oct 28, 3:04 PM MDT | Freeze Watch | BOU | 23 hr |
| Oct 29, 1:59 PM MDT | Freeze Warning | BOU | 43 hr |
| Oct 31, 4:41 AM MDT | Dense Fog Advisory | BOU | 4 hr |
| Nov 2, 2:34 PM MDT | Winter Weather Advisory | BOU | 43 hr |
| Nov 3, 2:06 PM MST | Winter Storm Warning | BOU | 19 hr |
| Nov 5, 3:38 AM MST | Winter Weather Advisory | BOU | 61 hr |
| Nov 7, 1:43 PM MST | Winter Weather Advisory | BOU | 46 hr |
| Nov 24, 1:38 PM MST | Winter Storm Watch | BOU | 12 hr |
| Nov 25, 1:15 AM MST | Winter Storm Warning | BOU | 61 hr |
| Nov 25, 1:15 AM MST | Winter Weather Advisory | BOU | 61 hr |
| Dec 15, 2:52 AM MST | High Wind Warning | BOU | 23 hr |
| Dec 17, 2:54 AM MST | Winter Weather Advisory | BOU | 17 hr |
| Dec 18, 9:53 AM MST | High Wind Warning | BOU | 20 hr |
| Dec 26, 2:05 PM MST | Winter Weather Advisory | BOU | 40 hr |
| Dec 27, 2:29 PM MST | Winter Weather Advisory | BOU | 45 hr |
| Dec 28, 1:52 PM MST | Winter Weather Advisory | BOU | 51 hr |
| Dec 28, 2:12 PM MST | High Wind Watch | BOU | 24 hr |
| Dec 28, 2:27 PM MST | Fire Weather Watch | BOU | 13 hr |
| Dec 29, 3:35 AM MST | Red Flag Warning | BOU | 37 hr |
| Dec 29, 2:17 PM MST | High Wind Warning | BOU | 27 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 | 7 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 21 |
| Flooding | |
| Flash Flood Warning | 4 |
| Flood Watch | 2 |
| Areal Flood Advisory | 11 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 10 |
| Winter Storm Watch | 11 |
| Winter Weather Advisory | 25 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 1 |
| Freeze Watch | 2 |
| Wind Chill Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 9 |
| High Wind Watch | 6 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.