Alert archive / Colorado / Adams County
Weather alerts in Adams County, Colorado, 2026
226 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Adams County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 226
- Warnings
- 85
- Watches
- 39
- Advisories
- 32
- Busiest month
- June55 alerts
- Busiest day
- June 1, 202616 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 2, 12:07 PM MST | Fire Weather Watch | BOU | 39 hr |
| Jan 14, 2:25 AM MST | Fire Weather Watch | BOU | 11 hr |
| Jan 14, 1:47 PM MST | Fire Weather Watch | BOU | 20 hr |
| Jan 14, 1:47 PM MST | Red Flag Warning | BOU | 28 hr |
| Jan 15, 10:01 AM MST | Red Flag Warning | BOU | 32 hr |
| Jan 15, 10:38 AM MST | High Wind Warning | BOU | 30 hr |
| Jan 16, 2:15 PM MST | Red Flag Warning | BOU | 27 hr |
| Jan 22, 1:58 AM MST | Cold Weather Advisory | BOU | 4 days |
| Jan 25, 1:02 PM MST | Winter Weather Advisory | BOU | 6 hr |
| Feb 13, 12:30 PM MST | Fire Weather Watch | BOU | 59 hr |
| Feb 13, 12:30 PM MST | Fire Weather Watch | BOU | 72 hr |
| Feb 15, 11:26 AM MST | Red Flag Warning | BOU | 31 hr |
| Feb 15, 11:41 AM MST | High Wind Watch | BOU | 25 hr |
| Feb 16, 12:13 PM MST | Red Flag Warning | BOU | 31 hr |
| Feb 16, 12:22 PM MST | High Wind Warning | BOU | 29 hr |
| Feb 23, 11:59 AM MST | Red Flag Warning | BOU | 29 hr |
| Feb 24, 11:57 AM MST | Red Flag Warning | BOU | 30 hr |
| Feb 25, 1:00 AM MST | Fire Weather Watch | BOU | 26 hr |
| Feb 26, 3:16 AM MST | Fire Weather Watch | BOU | 8 hr |
| Feb 26, 11:04 AM MST | Red Flag Warning | BOU | 31 hr |
| Mar 3, 12:52 PM MST | Fire Weather Watch | BOU | 23 hr |
| Mar 4, 12:30 PM MST | Winter Weather Advisory | BOU | 58 hr |
| Mar 6, 3:36 PM MST | Mesoscale Discussion | SPC | 4 hr |
| Mar 10, 2:26 AM MDT | Red Flag Warning | BOU | 11 hr |
| Mar 10, 1:06 PM MDT | Fire Weather Watch | BOU | 24 hr |
| Mar 11, 1:22 PM MDT | Red Flag Warning | BOU | 32 hr |
| Mar 11, 11:23 PM MDT | Fire Weather Watch | BOU | 13 hr |
| Mar 12, 12:50 PM MDT | Fire Weather Watch | BOU | 8 hr |
| Mar 12, 12:50 PM MDT | Red Flag Warning | BOU | 31 hr |
| Mar 12, 8:58 PM MDT | Red Flag Warning | BOU | 48 hr |
| Mar 13, 11:25 AM MDT | High Wind Watch | BOU | 27 hr |
| Mar 14, 2:27 PM MDT | High Wind Warning | BOU | 25 hr |
| Mar 15, 1:57 AM MDT | Special Weather Statement | BOU | 48 min |
| Mar 17, 1:09 PM MDT | Red Flag Warning | BOU | 30 hr |
| Mar 19, 2:16 AM MDT | Fire Weather Watch | BOU | 35 hr |
| Mar 20, 12:46 PM MDT | Red Flag Warning | BOU | 33 hr |
| Mar 29, 3:00 AM MDT | Fire Weather Watch | BOU | 9 hr |
| Mar 29, 12:19 PM MDT | Red Flag Warning | BOU | 32 hr |
| Apr 2, 12:57 PM MDT | Red Flag Warning | BOU | 30 hr |
| Apr 14, 11:53 PM MDT | Fire Weather Watch | BOU | 24 hr |
| Apr 15, 11:43 AM MDT | Red Flag Warning | BOU | 33 hr |
| Apr 15, 11:58 AM MDT | Freeze Watch | BOU | 23 hr |
| Apr 16, 11:02 AM MDT | Freeze Warning | BOU | 45 hr |
| Apr 20, 11:42 AM MDT | Fire Weather Watch | BOU | 9 hr |
| Apr 20, 8:48 PM MDT | Red Flag Warning | BOU | 51 hr |
| Apr 21, 1:15 PM MDT | Fire Weather Watch | BOU | 23 hr |
| Apr 22, 12:22 PM MDT | Red Flag Warning | BOU | 31 hr |
| Apr 22, 11:51 PM MDT | Fire Weather Watch | BOU | 14 hr |
| Apr 23, 1:41 PM MDT | Red Flag Warning | BOU | 30 hr |
| Apr 27, 7:25 AM MDT | Dense Fog Advisory | BOU | 3 hr |
| May 3, 1:43 PM MDT | Winter Storm Watch | BOU | 34 hr |
| May 4, 12:51 AM MDT | Winter Storm Warning | BOU | 61 hr |
| May 4, 12:51 AM MDT | Winter Weather Advisory | BOU | 61 hr |
| May 4, 12:59 PM MDT | Freeze Watch | BOU | 23 hr |
| May 5, 11:31 AM MDT | Freeze Warning | BOU | 44 hr |
| May 17, 11:53 AM MDT | Freeze Watch | BOU | 24 hr |
| May 17, 2:08 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| May 18, 11:36 AM MDT | Frost Advisory | BOU | 20 hr |
| May 21, 2:19 PM MDT | Mesoscale Discussion | SPC | 116 min |
| May 21, 4:33 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| May 21, 7:09 PM MDT | Severe Thunderstorm Warning | BOU | 36 min |
| May 25, 10:05 PM MDT | Special Weather Statement | BOU | 40 min |
| May 29, 2:19 PM MDT | Mesoscale Discussion | SPC | 116 min |
| May 30, 5:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 1, 11:51 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 12:52 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 1:04 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Jun 1, 1:38 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Jun 1, 2:04 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jun 1, 2:14 PM MDT | Flash Flood Warning | BOU | 95 min |
| Jun 1, 2:21 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jun 1, 2:29 PM MDT | Tornado Warning | BOU | 46 min |
| Jun 1, 2:52 PM MDT | Severe Thunderstorm Warning | BOU | 53 min |
| Jun 1, 3:02 PM MDT | Tornado Warning | BOU | 43 min |
| Jun 1, 3:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jun 1, 3:24 PM MDT | Tornado Warning | BOU | 39 min |
| Jun 1, 3:34 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Jun 1, 3:38 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jun 1, 3:40 PM MDT | Severe Thunderstorm Warning | BOU | 50 min |
| Jun 1, 3:53 PM MDT | Severe Thunderstorm Warning | BOU | 25 min |
| Jun 3, 3:27 PM MDT | Severe Thunderstorm Warning | BOU | 21 min |
| Jun 3, 3:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 5, 1:00 PM MDT | Red Flag Warning | BOU | 30 hr |
| Jun 7, 12:32 PM MDT | Fire Weather Watch | BOU | 25 hr |
| Jun 8, 1:03 PM MDT | Red Flag Warning | BOU | 32 hr |
| Jun 8, 1:29 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 8, 2:32 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 8, 3:14 PM MDT | Severe Thunderstorm Warning | BOU | 46 min |
| Jun 8, 3:37 PM MDT | Severe Thunderstorm Warning | BOU | 23 min |
| Jun 8, 3:51 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jun 8, 4:01 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Jun 8, 4:19 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Jun 8, 4:20 PM MDT | Areal Flood Advisory | BOU | 115 min |
| Jun 8, 4:52 PM MDT | Tornado Warning | BOU | 38 min |
| Jun 8, 4:59 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Jun 8, 5:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 8, 5:28 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Jun 9, 12:34 AM MDT | Fire Weather Watch | BOU | 24 hr |
| Jun 9, 12:57 PM MDT | Red Flag Warning | BOU | 31 hr |
| Jun 20, 1:27 PM MDT | Special Weather Statement | BOU | 33 min |
| Jun 20, 2:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jun 21, 9:14 PM MDT | Special Weather Statement | BOU | 31 min |
| Jun 22, 11:29 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 1:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 4:39 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 23, 9:03 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jun 23, 10:52 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 24, 2:20 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 24, 3:46 PM MDT | Special Weather Statement | BOU | 44 min |
| Jun 24, 3:50 PM MDT | Tornado Watch | SPC | 8 hr |
| Jun 24, 6:47 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jun 24, 9:18 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| Jun 24, 9:31 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Jun 24, 10:26 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Jun 25, 2:24 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 25, 7:31 PM MDT | Special Weather Statement | BOU | 44 min |
| Jun 26, 1:57 PM MDT | Severe Thunderstorm Warning | BOU | 27 min |
| Jun 26, 2:13 PM MDT | Mesoscale Discussion | SPC | 62 min |
| Jun 26, 2:37 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 2, 5:22 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| Jul 3, 5:21 PM MDT | Special Weather Statement | BOU | 39 min |
| Jul 3, 5:56 PM MDT | Special Weather Statement | BOU | 49 min |
| Jul 4, 4:29 PM MDT | Special Weather Statement | BOU | 31 min |
| Jul 7, 2:43 PM MDT | Special Weather Statement | BOU | 47 min |
| Jul 8, 1:03 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 8, 4:56 PM MDT | Severe Thunderstorm Warning | BOU | 34 min |
| Jul 8, 5:17 PM MDT | Severe Thunderstorm Warning | BOU | 43 min |
| Jul 8, 6:26 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Jul 9, 3:45 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Jul 9, 5:26 PM MDT | Severe Thunderstorm Warning | BOU | 34 min |
| Jul 10, 5:52 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| Jul 10, 6:18 PM MDT | Special Weather Statement | BOU | 42 min |
| Jul 10, 6:26 PM MDT | Severe Thunderstorm Warning | BOU | 34 min |
| Jul 10, 6:57 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| Jul 12, 1:11 PM MDT | Heat Advisory | BOU | 32 hr |
| Jul 17, 12:00 PM MDT | Heat Advisory | BOU | 3 days |
| Jul 22, 2:19 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jul 22, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Jul 24, 2:51 AM MDT | Heat Advisory | BOU | 42 hr |
| Jul 24, 2:51 AM MDT | Heat Advisory | BOU | 66 hr |
| Jul 28, 2:55 AM MDT | Flood Watch | BOU | 19 hr |
| Jul 28, 11:57 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 1:07 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 28, 2:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 28, 3:15 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Jul 28, 3:18 PM MDT | Areal Flood Advisory | BOU | 117 min |
| Jul 28, 4:11 PM MDT | Severe Thunderstorm Warning | BOU | 34 min |
| Jul 28, 4:40 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jul 29, 3:01 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jul 29, 3:25 PM MDT | Special Weather Statement | BOU | 50 min |
| Jul 29, 3:37 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| Jul 29, 3:56 PM MDT | Severe Thunderstorm Warning | BOU | 49 min |
| Jul 29, 4:32 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Jul 30, 1:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 31, 2:15 AM MDT | Heat Advisory | BOU | 4 days |
| Aug 6, 12:07 PM MDT | Heat Advisory | BOU | 3 days |
| Aug 8, 3:42 PM MDT | Special Weather Statement | BOU | 33 min |
| Aug 8, 4:17 PM MDT | Special Weather Statement | BOU | 28 min |
| Aug 11, 5:18 PM MDT | Special Weather Statement | BOU | 42 min |
| Aug 12, 1:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 13, 2:18 AM MDT | Flood Watch | BOU | 22 hr |
| Aug 13, 2:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 7:49 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 14, 10:40 AM MDT | Flood Watch | BOU | 11 hr |
| Aug 14, 1:51 PM MDT | Special Weather Statement | BOU | 24 min |
| Aug 14, 2:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 14, 2:16 PM MDT | Special Weather Statement | BOU | 29 min |
| Aug 14, 2:32 PM MDT | Areal Flood Advisory | BOU | 25 min |
| Aug 14, 2:49 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Aug 14, 2:57 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Aug 14, 3:30 PM MDT | Special Weather Statement | BOU | 30 min |
| Aug 14, 3:55 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Aug 14, 4:01 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 14, 4:07 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 14, 4:24 PM MDT | Special Weather Statement | BOU | 36 min |
| Aug 14, 5:53 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 14, 9:03 PM MDT | Areal Flood Advisory | BOU | 36 hr |
| Aug 15, 1:06 AM MDT | Flood Watch | BOU | 19 hr |
| Aug 15, 1:28 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 2:04 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 15, 2:27 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Aug 15, 2:34 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Aug 15, 2:44 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Aug 15, 5:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 12:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 16, 2:06 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 16, 3:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 22, 1:15 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 22, 2:29 PM MDT | Severe Thunderstorm Warning | BOU | 46 min |
| Aug 22, 2:55 PM MDT | Special Weather Statement | BOU | 35 min |
| Aug 22, 3:01 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Aug 24, 1:36 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 26, 1:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 3:53 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 26, 6:08 PM MDT | Severe Thunderstorm Warning | BOU | 31 min |
| Aug 26, 6:11 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 26, 6:37 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| Aug 26, 6:40 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Aug 26, 6:47 PM MDT | Areal Flood Advisory | BOU | 37 min |
| Aug 26, 7:08 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Aug 26, 7:16 PM MDT | Areal Flood Advisory | BOU | 119 min |
| Aug 26, 7:35 PM MDT | Areal Flood Advisory | BOU | 3 hr |
| Aug 26, 7:47 PM MDT | Special Weather Statement | BOU | 43 min |
| Aug 26, 8:29 PM MDT | Special Weather Statement | BOU | 46 min |
| Aug 27, 3:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 28, 4:13 PM MDT | Special Weather Statement | BOU | 32 min |
| Sep 6, 6:26 PM MDT | Special Weather Statement | BOU | 49 min |
| Sep 7, 5:39 PM MDT | Severe Thunderstorm Warning | BOU | 51 min |
| Sep 18, 4:47 PM MDT | Severe Thunderstorm Warning | BOU | 28 min |
| Sep 18, 5:08 PM MDT | Special Weather Statement | BOU | 37 min |
| Sep 19, 1:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 19, 1:46 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Sep 19, 2:08 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Sep 19, 5:55 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Sep 20, 8:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Sep 20, 9:01 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 20, 10:52 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Sep 22, 5:17 PM MDT | Special Weather Statement | BOU | 28 min |
| Sep 22, 8:33 PM MDT | Special Weather Statement | BOU | 42 min |
| Sep 22, 9:16 PM MDT | Special Weather Statement | BOU | 44 min |
| Sep 25, 4:29 PM MDT | Areal Flood Advisory | BOU | 2 hr |
| Sep 25, 4:51 PM MDT | Special Weather Statement | BOU | 39 min |
| Sep 25, 4:59 PM MDT | Severe Thunderstorm Warning | BOU | 31 min |
| Sep 25, 5:07 PM MDT | Areal Flood Advisory | BOU | 113 min |
| Sep 25, 5:17 PM MDT | Special Weather Statement | BOU | 28 min |
| Sep 25, 5:37 PM MDT | Special Weather Statement | BOU | 38 min |
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 | 47 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 39 |
| Special Weather Statement | 31 |
| Flooding | |
| Flash Flood Warning | 5 |
| Flood Watch | 4 |
| Areal Flood Advisory | 20 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 3 |
| Cold Weather Advisory | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 23 |
| Fire Weather Watch | 19 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
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.