Alert archive / Colorado / Weld County
Weather alerts in Weld County, Colorado, 2020
180 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Weld County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 180
- Warnings
- 89
- Watches
- 22
- Advisories
- 21
- Busiest month
- August37 alerts
- Busiest day
- August 4, 202011 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 1, 11:28 AM MST | High Wind Warning | BOU | 4 hr |
| Jan 6, 4:55 AM MST | High Wind Warning | BOU | 28 hr |
| Jan 16, 4:33 AM MST | High Wind Watch | BOU | 10 hr |
| Jan 16, 2:09 PM MST | High Wind Warning | BOU | 36 hr |
| Jan 30, 5:57 PM MST | Snow Squall Warning | BOU | 48 min |
| Feb 2, 3:45 PM MST | Winter Weather Advisory | BOU | 42 hr |
| Feb 5, 3:04 PM MST | Winter Storm Watch | BOU | 12 hr |
| Feb 6, 3:15 AM MST | Winter Weather Advisory | BOU | 45 hr |
| Feb 12, 12:26 PM MST | Winter Weather Advisory | BOU | 11 hr |
| Feb 12, 4:01 PM MST | Snow Squall Warning | BOU | 44 min |
| Feb 12, 4:32 PM MST | Snow Squall Warning | BOU | 58 min |
| Feb 24, 7:58 AM MST | Snow Squall Warning | BOU | 47 min |
| Feb 24, 8:42 AM MST | Snow Squall Warning | BOU | 48 min |
| Mar 1, 6:38 PM MST | Snow Squall Warning | BOU | 52 min |
| Mar 1, 9:10 PM MST | Snow Squall Warning | BOU | 50 min |
| Mar 4, 8:20 AM MST | Red Flag Warning | BOU | 9 hr |
| Mar 14, 3:20 PM MDT | Dense Fog Advisory | BOU | 14 hr |
| Mar 17, 1:15 PM MDT | Winter Storm Watch | BOU | 24 hr |
| Mar 17, 8:25 PM MDT | Dense Fog Advisory | BOU | 13 hr |
| Mar 18, 5:02 AM MDT | Winter Storm Warning | BOU | 43 hr |
| Mar 18, 1:02 PM MDT | Blizzard Warning | BOU | 35 hr |
| Mar 19, 4:45 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 26, 2:48 PM MDT | Winter Weather Advisory | BOU | 45 hr |
| Apr 7, 4:45 AM MDT | Red Flag Warning | BOU | 14 hr |
| Apr 14, 3:09 PM MDT | Winter Storm Watch | BOU | 19 hr |
| Apr 14, 3:09 PM MDT | Winter Storm Warning | BOU | 51 hr |
| Apr 15, 10:32 AM MDT | Winter Weather Advisory | BOU | 34 hr |
| Apr 28, 3:27 AM MDT | Red Flag Warning | BOU | 17 hr |
| May 1, 12:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| May 3, 2:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 3, 10:19 PM MDT | Special Weather Statement | BOU | 41 min |
| May 3, 11:18 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| May 4, 2:47 PM MDT | Frost Advisory | BOU | 17 hr |
| May 5, 2:31 PM MDT | Frost Advisory | BOU | 17 hr |
| May 7, 6:00 PM MDT | High Wind Warning | BOU | 2 hr |
| May 9, 3:03 AM MDT | Frost Advisory | BOU | 29 hr |
| May 11, 5:15 AM MDT | Frost Advisory | BOU | 2 hr |
| May 14, 1:39 PM MDT | Special Weather Statement | BOU | 51 min |
| May 15, 2:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| May 15, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| May 15, 7:25 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| May 19, 5:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 19, 6:29 PM MDT | Special Weather Statement | BOU | 31 min |
| May 20, 1:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| May 20, 2:22 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 20, 5:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| May 20, 7:09 PM MDT | Severe Thunderstorm Warning | BOU | 36 min |
| May 20, 7:25 PM MDT | Special Weather Statement | BOU | 35 min |
| May 20, 7:37 PM MDT | Severe Thunderstorm Warning | BOU | 12 min |
| May 20, 8:10 PM MDT | Mesoscale Discussion | SPC | 95 min |
| May 20, 8:40 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| May 20, 9:37 PM MDT | Severe Thunderstorm Warning | BOU | 38 min |
| Jun 2, 5:09 PM MDT | Severe Thunderstorm Warning | BOU | 51 min |
| Jun 2, 5:51 PM MDT | Special Weather Statement | BOU | 39 min |
| Jun 2, 6:20 PM MDT | Severe Thunderstorm Warning | BOU | 25 min |
| Jun 2, 6:35 PM MDT | Severe Thunderstorm Warning | BOU | 40 min |
| Jun 4, 1:43 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jun 5, 12:50 PM MDT | High Wind Warning | BOU | 31 hr |
| Jun 6, 11:29 AM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 6, 12:21 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 6, 3:03 PM MDT | Severe Thunderstorm Warning | BOU | 57 min |
| Jun 6, 3:56 PM MDT | Severe Thunderstorm Warning | BOU | 64 min |
| Jun 6, 4:36 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jun 6, 5:18 PM MDT | Severe Thunderstorm Warning | BOU | 42 min |
| Jun 8, 3:28 AM MDT | High Wind Warning | BOU | 36 hr |
| Jun 8, 7:39 PM MDT | Severe Thunderstorm Warning | BOU | 51 min |
| Jun 8, 8:15 PM MDT | Severe Thunderstorm Warning | BOU | 22 min |
| Jun 8, 9:24 PM MDT | Special Weather Statement | BOU | 66 min |
| Jun 8, 10:11 PM MDT | Special Weather Statement | BOU | 49 min |
| Jun 13, 12:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 2:53 PM MDT | Special Weather Statement | BOU | 37 min |
| Jun 21, 5:05 PM MDT | Severe Thunderstorm Warning | BOU | 25 min |
| Jun 25, 3:11 PM MDT | Severe Thunderstorm Warning | BOU | 49 min |
| Jun 26, 12:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 26, 1:12 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 26, 3:51 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jun 26, 5:31 PM MDT | Severe Thunderstorm Warning | BOU | 26 min |
| Jun 28, 4:15 PM MDT | Special Weather Statement | BOU | 30 min |
| Jul 3, 6:26 PM MDT | Special Weather Statement | BOU | 49 min |
| Jul 4, 4:14 PM MDT | Special Weather Statement | BOU | 46 min |
| Jul 9, 2:35 PM MDT | Red Flag Warning | BOU | 29 hr |
| Jul 9, 5:16 PM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Jul 9, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Jul 9, 8:11 PM MDT | Severe Thunderstorm Warning | BOU | 34 min |
| Jul 9, 8:26 PM MDT | Severe Thunderstorm Warning | BOU | 3 min |
| Jul 9, 8:26 PM MDT | Severe Thunderstorm Warning | BOU | 49 min |
| Jul 9, 8:51 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jul 9, 11:40 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Jul 10, 12:04 AM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Jul 12, 7:12 PM MDT | Special Weather Statement | BOU | 63 min |
| Jul 13, 12:39 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 2:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 3:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jul 13, 3:36 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Jul 13, 4:16 PM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Jul 13, 5:00 PM MDT | Severe Thunderstorm Warning | BOU | 60 min |
| Jul 16, 5:18 PM MDT | Special Weather Statement | BOU | 42 min |
| Jul 19, 4:12 PM MDT | Special Weather Statement | BOU | 48 min |
| Jul 20, 3:55 PM MDT | Severe Thunderstorm Warning | BOU | 50 min |
| Jul 20, 4:14 PM MDT | Areal Flood Warning | BOU | 3 hr |
| Jul 20, 4:18 PM MDT | Flash Flood Warning | BOU | 3 hr |
| Jul 20, 4:43 PM MDT | Severe Thunderstorm Warning | BOU | 32 min |
| Jul 20, 5:14 PM MDT | Severe Thunderstorm Warning | BOU | 31 min |
| Jul 20, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | 28 min |
| Jul 20, 5:20 PM MDT | Areal Flood Advisory | BOU | 115 min |
| Jul 21, 1:12 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jul 21, 1:33 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 5:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 21, 6:26 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Jul 21, 7:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 28, 2:57 PM MDT | Areal Flood Advisory | BOU | 93 min |
| Jul 30, 4:16 PM MDT | Special Weather Statement | BOU | 29 min |
| Jul 30, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | 30 min |
| Jul 31, 7:29 PM MDT | Severe Thunderstorm Warning | BOU | 15 min |
| Jul 31, 8:20 PM MDT | Severe Thunderstorm Warning | BOU | 25 min |
| Jul 31, 8:49 PM MDT | Severe Thunderstorm Warning | BOU | 26 min |
| Aug 1, 2:24 PM MDT | Special Weather Statement | BOU | 51 min |
| Aug 1, 3:15 PM MDT | Special Weather Statement | BOU | 30 min |
| Aug 2, 1:58 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 4, 12:52 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Aug 4, 1:46 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 4, 3:10 PM MDT | Severe Thunderstorm Warning | BOU | 50 min |
| Aug 4, 3:47 PM MDT | Severe Thunderstorm Warning | BOU | 43 min |
| Aug 4, 3:57 PM MDT | Severe Thunderstorm Warning | BOU | 48 min |
| Aug 4, 4:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 4, 4:18 PM MDT | Areal Flood Advisory | BOU | 117 min |
| Aug 4, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Aug 4, 4:37 PM MDT | Severe Thunderstorm Warning | BOU | 53 min |
| Aug 4, 5:30 PM MDT | Special Weather Statement | BOU | 45 min |
| Aug 4, 5:57 PM MDT | Severe Thunderstorm Warning | BOU | 48 min |
| Aug 4, 6:17 PM MDT | Areal Flood Advisory | BOU | 88 min |
| Aug 5, 12:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 5, 1:26 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 5, 3:39 PM MDT | Special Weather Statement | BOU | 51 min |
| Aug 5, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Aug 5, 5:21 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Aug 6, 12:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 2:51 PM MDT | Severe Thunderstorm Warning | BOU | 39 min |
| Aug 6, 5:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 1:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 12, 7:34 PM MDT | Special Weather Statement | BOU | 26 min |
| Aug 12, 8:09 PM MDT | Special Weather Statement | BOU | 36 min |
| Aug 17, 1:47 AM MDT | Special Weather Statement | BOU | 28 min |
| Aug 17, 1:55 AM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Aug 17, 2:24 AM MDT | Areal Flood Advisory | BOU | 81 min |
| Aug 17, 2:59 AM MDT | Areal Flood Advisory | BOU | 91 min |
| Aug 19, 4:57 PM MDT | Special Weather Statement | BOU | 48 min |
| Aug 29, 5:12 AM MDT | Fire Weather Watch | BOU | 10 hr |
| Aug 29, 12:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Aug 29, 3:21 PM MDT | Red Flag Warning | BOU | 29 hr |
| Sep 4, 2:40 PM MDT | Fire Weather Watch | BOU | 13 hr |
| Sep 4, 2:40 PM MDT | Red Flag Warning | BOU | 3 days |
| Sep 6, 3:12 AM MDT | Winter Storm Watch | BOU | 24 hr |
| Sep 7, 3:39 AM MDT | Winter Weather Advisory | BOU | 55 hr |
| Sep 7, 3:41 AM MDT | Freeze Warning | BOU | 55 hr |
| Sep 25, 4:14 AM MDT | Fire Weather Watch | BOU | 9 hr |
| Sep 25, 12:45 PM MDT | Red Flag Warning | BOU | 31 hr |
| Oct 2, 4:02 AM MDT | Red Flag Warning | BOU | 16 hr |
| Oct 3, 2:23 PM MDT | Fire Weather Watch | BOU | 14 hr |
| Oct 4, 4:01 AM MDT | Red Flag Warning | BOU | 38 hr |
| Oct 9, 2:49 AM MDT | Fire Weather Watch | BOU | 13 hr |
| Oct 9, 3:43 PM MDT | Fire Weather Watch | BOU | 12 hr |
| Oct 9, 3:43 PM MDT | Red Flag Warning | BOU | 28 hr |
| Oct 10, 3:44 AM MDT | Red Flag Warning | BOU | 40 hr |
| Oct 11, 3:45 AM MDT | Fire Weather Watch | BOU | 11 hr |
| Oct 11, 1:45 PM MDT | High Wind Warning | BOU | 4 hr |
| Oct 11, 2:48 PM MDT | Red Flag Warning | BOU | 27 hr |
| Oct 12, 3:02 PM MDT | Red Flag Warning | BOU | 27 hr |
| Oct 13, 1:54 PM MDT | Red Flag Warning | BOU | 28 hr |
| Oct 14, 3:44 PM MDT | Frost Advisory | BOU | 17 hr |
| Oct 15, 3:25 PM MDT | Freeze Warning | BOU | 17 hr |
| Oct 23, 2:46 PM MDT | Winter Storm Watch | BOU | 24 hr |
| Oct 24, 2:41 PM MDT | Winter Storm Warning | BOU | 39 hr |
| Oct 24, 2:41 PM MDT | Winter Weather Advisory | BOU | 39 hr |
| Nov 12, 8:51 PM MST | High Wind Watch | BOU | 17 hr |
| Nov 13, 1:45 PM MST | High Wind Warning | BOU | 51 hr |
| Dec 21, 7:52 PM MST | High Wind Watch | BOU | 8 hr |
| Dec 22, 3:48 AM MST | High Wind Warning | BOU | 33 hr |
| Dec 22, 6:23 PM MST | Snow Squall Warning | BOU | 37 min |
| Dec 27, 2:14 PM MST | Winter Weather Advisory | BOU | 46 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 | 50 |
| Severe Thunderstorm Watch | 7 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 23 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Blizzard Warning | 1 |
| Snow Squall Warning | 8 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 9 |
| High Wind Watch | 3 |
| Fire | |
| Red Flag Warning | 14 |
| Fire Weather Watch | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.