Alert archive / Colorado / Jefferson County
Weather alerts in Jefferson County, Colorado, 2012
105 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 105
- Warnings
- 49
- Watches
- 21
- Advisories
- 22
- Busiest month
- June33 alerts
- Busiest day
- June 7, 20128 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 16, 2:36 PM MST | High Wind Watch | BOU | 36 hr |
| Jan 17, 9:57 AM MST | High Wind Warning | BOU | 50 hr |
| Jan 18, 2:49 PM MST | Blizzard Warning | BOU | 18 hr |
| Jan 19, 2:38 PM MST | High Wind Warning | BOU | 18 hr |
| Jan 20, 4:31 AM MST | Winter Storm Watch | BOU | 7 hr |
| Jan 20, 11:26 AM MST | Winter Storm Warning | BOU | 48 hr |
| Jan 20, 11:30 AM MST | High Wind Warning | BOU | 28 hr |
| Feb 1, 4:09 AM MST | Winter Storm Watch | BOU | 25 hr |
| Feb 2, 5:07 AM MST | Winter Storm Warning | BOU | 47 hr |
| Feb 2, 5:07 AM MST | Winter Weather Advisory | BOU | 7 hr |
| Feb 2, 5:08 PM MST | Mesoscale Discussion | SPC | 4 hr |
| Feb 20, 4:25 AM MST | High Wind Watch | BOU | 24 hr |
| Feb 21, 4:17 AM MST | High Wind Warning | BOU | 48 hr |
| Feb 21, 8:56 PM MST | Winter Storm Warning | BOU | 38 hr |
| Feb 23, 4:37 AM MST | Winter Weather Advisory | BOU | 6 hr |
| Feb 27, 2:16 PM MST | High Wind Watch | BOU | 19 hr |
| Feb 28, 3:35 AM MST | Winter Weather Advisory | BOU | 20 hr |
| Feb 28, 9:29 AM MST | High Wind Warning | BOU | 24 hr |
| Feb 29, 3:12 PM MST | Winter Weather Advisory | BOU | 38 hr |
| Mar 5, 11:39 PM MST | Red Flag Warning | BOU | 18 hr |
| Mar 16, 4:10 AM MDT | Fire Weather Watch | BOU | 11 hr |
| Mar 16, 3:07 PM MDT | Red Flag Warning | BOU | 29 hr |
| Mar 17, 7:38 PM MDT | Red Flag Warning | BOU | 26 hr |
| Mar 24, 2:09 PM MDT | Fire Weather Watch | BOU | 22 hr |
| Mar 25, 12:15 PM MDT | Red Flag Warning | BOU | 33 hr |
| Mar 30, 4:16 PM MDT | Fire Weather Watch | BOU | 24 hr |
| Mar 30, 4:16 PM MDT | Red Flag Warning | BOU | 28 hr |
| Mar 31, 4:14 PM MDT | Red Flag Warning | BOU | 27 hr |
| Apr 2, 3:34 PM MDT | Winter Weather Advisory | BOU | 26 hr |
| Apr 5, 4:05 AM MDT | Fire Weather Watch | BOU | 12 hr |
| Apr 11, 10:50 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Apr 13, 3:35 AM MDT | Winter Storm Watch | BOU | 26 hr |
| Apr 14, 5:35 AM MDT | Winter Weather Advisory | BOU | 36 hr |
| Apr 26, 8:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 8:24 PM MDT | Winter Weather Advisory | BOU | 18 hr |
| May 12, 5:02 AM MDT | Dense Fog Advisory | BOU | 4 hr |
| May 17, 2:36 PM MDT | Fire Weather Watch | BOU | 13 hr |
| May 18, 4:05 AM MDT | Red Flag Warning | BOU | 16 hr |
| May 25, 12:18 PM MDT | Red Flag Warning | BOU | 56 hr |
| Jun 2, 12:56 PM MDT | Special Weather Statement | BOU | 34 min |
| Jun 2, 1:25 PM MDT | Areal Flood Advisory | BOU | 95 min |
| Jun 2, 2:00 PM MDT | Special Weather Statement | BOU | 30 min |
| Jun 2, 2:09 PM MDT | Severe Thunderstorm Warning | BOU | 36 min |
| Jun 2, 2:20 PM MDT | Severe Thunderstorm Warning | BOU | 40 min |
| Jun 3, 1:03 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 12:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 11:34 PM MDT | Severe Thunderstorm Warning | BOU | 41 min |
| Jun 6, 11:50 PM MDT | Tornado Warning | BOU | 25 min |
| Jun 7, 12:16 AM MDT | Severe Thunderstorm Warning | BOU | 44 min |
| Jun 7, 12:30 AM MDT | Areal Flood Advisory | BOU | 90 min |
| Jun 7, 12:52 AM MDT | Flash Flood Warning | BOU | 3 hr |
| Jun 7, 1:39 AM MDT | Areal Flood Warning | BOU | 7 hr |
| Jun 7, 11:46 AM MDT | Tornado Watch | SPC | 10 hr |
| Jun 7, 5:52 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 8, 3:03 PM MDT | Red Flag Warning | BOU | 55 hr |
| Jun 15, 1:49 PM MDT | Special Weather Statement | BOU | 26 min |
| Jun 16, 3:58 AM MDT | Fire Weather Watch | BOU | 10 hr |
| Jun 16, 1:31 PM MDT | Severe Thunderstorm Warning | BOU | 29 min |
| Jun 16, 1:53 PM MDT | Areal Flood Advisory | BOU | 82 min |
| Jun 16, 2:02 PM MDT | Red Flag Warning | BOU | 30 hr |
| Jun 17, 4:37 AM MDT | Red Flag Warning | BOU | 40 hr |
| Jun 18, 4:59 AM MDT | Fire Weather Watch | BOU | 10 hr |
| Jun 18, 3:12 PM MDT | Red Flag Warning | BOU | 30 hr |
| Jun 20, 4:31 PM MDT | Fire Weather Watch | BOU | 23 hr |
| Jun 21, 3:16 PM MDT | Red Flag Warning | BOU | 54 hr |
| Jun 23, 3:42 PM MDT | Red Flag Warning | BOU | 30 hr |
| Jun 24, 2:54 PM MDT | Red Flag Warning | BOU | 30 hr |
| Jun 25, 3:29 PM MDT | Red Flag Warning | BOU | 29 hr |
| Jun 26, 5:23 PM MDT | Severe Thunderstorm Warning | BOU | 22 min |
| Jun 26, 5:43 PM MDT | Severe Thunderstorm Warning | BOU | 47 min |
| Jun 27, 10:19 AM MDT | Red Flag Warning | BOU | 10 hr |
| Jun 27, 1:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 6, 1:55 PM MDT | Areal Flood Advisory | BOU | 80 min |
| Jul 6, 8:41 PM MDT | Flash Flood Watch | BOU | 32 hr |
| Jul 7, 4:19 PM MDT | Areal Flood Advisory | BOU | 86 min |
| Jul 8, 5:05 AM MDT | Flash Flood Watch | BOU | 18 hr |
| Jul 16, 2:31 PM MDT | Flash Flood Warning | BOU | 51 min |
| Jul 30, 2:09 PM MDT | Special Weather Statement | BOU | 36 min |
| Jul 31, 2:05 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Aug 1, 12:45 PM MDT | Special Weather Statement | BOU | 30 min |
| Aug 11, 6:50 PM MDT | Severe Thunderstorm Warning | BOU | 26 min |
| Aug 11, 7:11 PM MDT | Severe Thunderstorm Warning | BOU | 19 min |
| Oct 3, 11:26 AM MDT | Red Flag Warning | BOU | 7 hr |
| Oct 3, 8:26 PM MDT | Freeze Warning | BOU | 13 hr |
| Oct 4, 4:21 PM MDT | Frost Advisory | BOU | 17 hr |
| Oct 4, 4:21 PM MDT | Freeze Watch | BOU | 13 hr |
| Oct 5, 5:03 AM MDT | Freeze Warning | BOU | 29 hr |
| Oct 5, 2:59 PM MDT | Hard Freeze Warning | BOU | 42 hr |
| Oct 16, 3:52 AM MDT | Fire Weather Watch | BOU | 12 hr |
| Oct 16, 3:49 PM MDT | Red Flag Warning | BOU | 26 hr |
| Nov 24, 3:43 AM MST | Red Flag Warning | BOU | 13 hr |
| Nov 27, 3:48 AM MST | Red Flag Warning | BOU | 13 hr |
| Dec 1, 2:50 PM MST | Fire Weather Watch | BOU | 17 hr |
| Dec 2, 7:59 AM MST | Red Flag Warning | BOU | 22 hr |
| Dec 7, 4:20 PM MST | High Wind Warning | BOU | 25 hr |
| Dec 7, 9:25 PM MST | Winter Weather Advisory | BOU | 17 hr |
| Dec 8, 2:44 PM MST | Winter Storm Warning | BOU | 11 hr |
| Dec 8, 8:25 PM MST | Winter Weather Advisory | BOU | 12 hr |
| Dec 16, 4:32 AM MST | Dense Fog Advisory | BOU | 4 hr |
| Dec 16, 2:47 PM MST | Winter Weather Advisory | BOU | 38 hr |
| Dec 17, 3:36 PM MST | Winter Storm Watch | BOU | 22 hr |
| Dec 18, 1:56 PM MST | Winter Weather Advisory | BOU | 25 hr |
| Dec 19, 3:13 AM MST | Winter Weather Advisory | BOU | 12 hr |
| Dec 23, 3:28 PM MST | Winter Weather Advisory | BOU | 38 hr |
| Dec 26, 11:01 AM MST | Winter Weather Advisory | BOU | 34 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 | 9 |
| Tornado Warning | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 8 |
| Special Weather Statement | 5 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 14 |
| Cold | |
| Freeze Warning | 2 |
| Hard Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 3 |
| Fire | |
| Red Flag Warning | 22 |
| Fire Weather Watch | 10 |
| 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 archive20112013
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.