Alert archive / Colorado / Denver County
Weather alerts in Denver County, Colorado, 2018
121 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Denver County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 121
- Warnings
- 29
- Watches
- 16
- Advisories
- 26
- Busiest month
- July29 alerts
- Busiest day
- June 19, 20187 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 15, 6:46 AM MST | Winter Weather Advisory | BOU | 6 hr |
| Jan 19, 1:54 PM MST | Winter Storm Watch | BOU | 16 hr |
| Jan 20, 5:24 AM MST | Winter Storm Warning | BOU | 36 hr |
| Feb 9, 5:37 PM MST | Dense Fog Advisory | BOU | 3 hr |
| Feb 18, 2:01 PM MST | Winter Weather Advisory | BOU | 34 hr |
| Mar 3, 3:17 PM MST | Fire Weather Watch | BOU | 5 hr |
| Mar 3, 3:17 PM MST | Fire Weather Watch | BOU | 19 hr |
| Mar 3, 3:17 PM MST | Red Flag Warning | BOU | 28 hr |
| Mar 4, 5:22 AM MST | High Wind Watch | BOU | 9 hr |
| Mar 4, 9:49 AM MST | Red Flag Warning | BOU | 32 hr |
| Mar 17, 2:40 PM MDT | Winter Weather Advisory | BOU | 37 hr |
| Mar 25, 7:31 PM MDT | Dense Fog Advisory | BOU | 13 hr |
| Apr 10, 3:44 AM MDT | Red Flag Warning | BOU | 39 hr |
| Apr 10, 3:44 AM MDT | Red Flag Warning | BOU | 65 hr |
| Apr 16, 3:45 AM MDT | Red Flag Warning | BOU | 42 hr |
| Apr 16, 2:16 PM MDT | High Wind Watch | BOU | 18 hr |
| Apr 17, 4:58 AM MDT | High Wind Warning | BOU | 16 hr |
| Apr 18, 8:27 PM MDT | Red Flag Warning | BOU | 24 hr |
| May 1, 1:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 11, 10:58 PM MDT | Dense Fog Advisory | BOU | 10 hr |
| May 13, 4:19 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 14, 12:09 PM MDT | Special Weather Statement | BOU | 21 min |
| May 14, 12:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 14, 12:43 PM MDT | Special Weather Statement | BOU | 47 min |
| May 14, 12:54 PM MDT | Areal Flood Advisory | BOU | 38 min |
| May 15, 4:30 PM MDT | Special Weather Statement | BOU | 45 min |
| May 18, 11:02 AM MDT | Flash Flood Watch | BOU | 30 hr |
| May 18, 3:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| May 21, 3:00 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 4:30 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 1:39 PM MDT | Mesoscale Discussion | SPC | 96 min |
| May 28, 2:01 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 4:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| May 30, 1:25 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 7:55 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Jun 13, 1:42 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 4:28 PM MDT | Special Weather Statement | BOU | 32 min |
| Jun 15, 2:40 PM MDT | Special Weather Statement | BOU | 50 min |
| Jun 18, 3:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 18, 6:37 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 8:16 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Jun 18, 8:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 19, 11:48 AM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 19, 12:25 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 19, 12:53 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Jun 19, 1:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 6:21 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 19, 6:24 PM MDT | Special Weather Statement | BOU | 51 min |
| Jun 22, 11:27 AM MDT | Special Weather Statement | BOU | 48 min |
| Jun 22, 3:34 PM MDT | Special Weather Statement | BOU | 41 min |
| Jun 22, 4:17 PM MDT | Special Weather Statement | BOU | 58 min |
| Jun 27, 4:49 PM MDT | Severe Thunderstorm Warning | BOU | 26 min |
| Jun 27, 5:24 PM MDT | Special Weather Statement | BOU | 36 min |
| Jun 30, 4:40 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 1:51 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jul 15, 4:14 AM MDT | Flash Flood Watch | BOU | 16 hr |
| Jul 16, 3:36 AM MDT | Dense Fog Advisory | BOU | 3 hr |
| Jul 23, 1:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 23, 4:07 PM MDT | Areal Flood Advisory | BOU | 83 min |
| Jul 23, 4:16 PM MDT | Areal Flood Advisory | BOU | 89 min |
| Jul 23, 4:43 PM MDT | Special Weather Statement | BOU | 32 min |
| Jul 23, 5:47 PM MDT | Areal Flood Advisory | BOU | 55 min |
| Jul 23, 7:42 PM MDT | Areal Flood Advisory | BOU | 80 min |
| Jul 23, 7:51 PM MDT | Special Weather Statement | BOU | 24 min |
| Jul 24, 3:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 5:56 PM MDT | Severe Thunderstorm Warning | BOU | 49 min |
| Jul 24, 6:13 PM MDT | Areal Flood Advisory | BOU | 32 min |
| Jul 24, 6:28 PM MDT | Severe Thunderstorm Warning | BOU | 46 min |
| Jul 24, 6:41 PM MDT | Flash Flood Warning | BOU | 2 hr |
| Jul 25, 10:41 AM MDT | Flash Flood Watch | BOU | 11 hr |
| Jul 25, 12:48 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jul 25, 1:22 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 25, 5:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 6:38 PM MDT | Severe Thunderstorm Warning | BOU | 52 min |
| Jul 25, 7:08 PM MDT | Areal Flood Advisory | BOU | 80 min |
| Jul 25, 7:25 PM MDT | Severe Thunderstorm Warning | BOU | 16 min |
| Jul 25, 7:46 PM MDT | Areal Flood Advisory | BOU | 45 min |
| Jul 26, 12:49 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Jul 26, 1:49 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 26, 6:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 26, 9:10 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Jul 29, 12:46 PM MDT | Mesoscale Discussion | SPC | 59 min |
| Jul 29, 5:23 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Aug 3, 8:39 PM MDT | Severe Thunderstorm Warning | BOU | 51 min |
| Aug 6, 2:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 6, 5:24 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Aug 6, 8:06 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Aug 7, 12:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 6:14 PM MDT | Severe Thunderstorm Warning | BOU | 27 min |
| Aug 7, 7:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 5:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 14, 5:39 PM MDT | Severe Thunderstorm Warning | BOU | 51 min |
| Aug 14, 6:13 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Aug 14, 6:59 PM MDT | Special Weather Statement | BOU | 61 min |
| Aug 14, 7:09 PM MDT | Areal Flood Advisory | BOU | 96 min |
| Aug 17, 2:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 26, 3:58 AM MDT | Fire Weather Watch | BOU | 12 hr |
| Aug 26, 2:05 PM MDT | Special Weather Statement | BOU | 25 min |
| Aug 26, 3:35 PM MDT | Red Flag Warning | BOU | 26 hr |
| Sep 5, 2:31 AM MDT | Areal Flood Advisory | BOU | 89 min |
| Sep 5, 3:00 AM MDT | Areal Flood Advisory | BOU | 90 min |
| Sep 5, 3:57 AM MDT | Areal Flood Advisory | BOU | 93 min |
| Sep 5, 3:14 PM MDT | Areal Flood Advisory | BOU | 61 min |
| Sep 7, 4:04 AM MDT | Dense Fog Advisory | BOU | 5 hr |
| Sep 11, 11:58 AM MDT | Special Weather Statement | BOU | 32 min |
| Sep 11, 12:37 PM MDT | Special Weather Statement | BOU | 23 min |
| Sep 11, 2:05 PM MDT | Special Weather Statement | BOU | 40 min |
| Sep 19, 5:23 PM MDT | Special Weather Statement | BOU | 52 min |
| Sep 19, 5:49 PM MDT | Areal Flood Advisory | BOU | 75 min |
| Oct 7, 2:30 PM MDT | Freeze Watch | BOU | 25 hr |
| Oct 8, 3:01 PM MDT | Freeze Warning | BOU | 13 hr |
| Oct 9, 4:25 AM MDT | Freeze Warning | BOU | 30 hr |
| Oct 10, 2:27 PM MDT | Freeze Warning | BOU | 19 hr |
| Oct 12, 2:20 PM MDT | Winter Weather Advisory | BOU | 49 hr |
| Nov 2, 10:06 PM MDT | Special Weather Statement | BOU | 24 min |
| Nov 2, 10:35 PM MDT | Severe Thunderstorm Warning | BOU | 33 min |
| Nov 2, 11:18 PM MDT | Special Weather Statement | BOU | 27 min |
| Nov 10, 4:18 AM MST | Winter Weather Advisory | BOU | 44 hr |
| Nov 16, 10:36 AM MST | Winter Weather Advisory | BOU | 34 hr |
| Nov 24, 5:39 AM MST | High Wind Warning | BOU | 19 hr |
| Dec 30, 1:56 PM MST | Winter Weather Advisory | 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 | 15 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 30 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 14 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.