Alert archive / Colorado / Jackson County
Weather alerts in Jackson County, Colorado, 2025
68 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jackson County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 68
- Warnings
- 19
- Watches
- 16
- Advisories
- 25
- Busiest month
- December16 alerts
- Busiest day
- December 4, 20253 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jackson County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 0 | 100% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Denver/Boulder, CO: tornado warnings | 32 | 10 | 69% | 25 | 56% | 13 min |
| NWS Denver/Boulder, CO: severe thunderstorm warnings | 363 | 126 | 65% | 369 | 75% | 20 min |
| NWS Denver/Boulder, CO: flash flood warnings | 22 | 2 | 91% | 5 | 60% | 42 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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, 3:06 AM MST | Winter Storm Warning | BOU | 38 hr |
| Jan 3, 1:49 PM MST | Winter Weather Advisory | BOU | 49 hr |
| Jan 9, 2:07 PM MST | Winter Weather Advisory | BOU | 57 hr |
| Jan 16, 1:51 PM MST | Winter Weather Advisory | BOU | 51 hr |
| Jan 19, 3:28 AM MST | Extreme Cold Watch | BOU | 23 hr |
| Jan 20, 2:46 AM MST | Extreme Cold Warning | BOU | 30 hr |
| Jan 23, 1:53 PM MST | Winter Weather Advisory | BOU | 63 hr |
| Jan 31, 2:37 PM MST | Winter Weather Advisory | BOU | 37 hr |
| Feb 1, 7:57 PM MST | High Wind Watch | BOU | 8 hr |
| Feb 2, 4:02 AM MST | High Wind Warning | BOU | 25 hr |
| Feb 6, 2:42 PM MST | Winter Weather Advisory | BOU | 40 hr |
| Feb 10, 2:11 PM MST | Winter Weather Advisory | BOU | 43 hr |
| Feb 12, 2:22 PM MST | Winter Storm Watch | BOU | 13 hr |
| Feb 13, 2:55 AM MST | Winter Storm Warning | BOU | 65 hr |
| Feb 13, 2:55 AM MST | Winter Weather Advisory | BOU | 65 hr |
| Feb 15, 2:13 PM MST | Winter Storm Watch | BOU | 12 hr |
| Feb 16, 2:22 AM MST | Winter Storm Warning | BOU | 51 hr |
| Mar 2, 2:34 AM MST | Winter Storm Watch | BOU | 33 hr |
| Mar 2, 2:38 PM MST | Winter Weather Advisory | BOU | 50 hr |
| Mar 3, 2:16 AM MST | Winter Storm Warning | BOU | 25 hr |
| Mar 5, 1:48 PM MST | Winter Weather Advisory | BOU | 54 hr |
| Mar 13, 2:02 PM MDT | Winter Weather Advisory | BOU | 24 hr |
| Mar 17, 12:38 PM MDT | Winter Weather Advisory | BOU | 44 hr |
| Mar 20, 2:29 PM MDT | Winter Weather Advisory | BOU | 58 hr |
| Mar 30, 4:22 AM MDT | Winter Storm Watch | BOU | 23 hr |
| Mar 31, 3:44 AM MDT | Winter Weather Advisory | BOU | 50 hr |
| Apr 16, 2:33 PM MDT | Winter Storm Watch | BOU | 12 hr |
| Apr 16, 2:33 PM MDT | Winter Weather Advisory | BOU | 63 hr |
| May 4, 2:26 PM MDT | Winter Storm Watch | BOU | 24 hr |
| May 5, 2:14 PM MDT | Winter Storm Warning | BOU | 43 hr |
| May 17, 2:33 PM MDT | Winter Weather Advisory | BOU | 37 hr |
| May 30, 11:35 AM MDT | River Flood Watch | BOU | 3 days |
| Jun 12, 1:28 PM MDT | Special Weather Statement | BOU | 47 min |
| Jun 12, 1:45 PM MDT | Severe Thunderstorm Warning | BOU | 45 min |
| Jun 17, 10:54 AM MDT | Special Weather Statement | BOU | 36 min |
| Jun 17, 11:11 AM MDT | Special Weather Statement | BOU | 49 min |
| Jul 3, 5:15 PM MDT | Special Weather Statement | BOU | 45 min |
| Jul 16, 12:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 1:36 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 30, 12:10 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 2:09 PM MDT | Red Flag Warning | BOU | 30 hr |
| Aug 5, 2:04 PM MDT | Red Flag Warning | BOU | 30 hr |
| Aug 6, 2:47 PM MDT | Fire Weather Watch | BOU | 18 hr |
| Aug 6, 2:47 PM MDT | Red Flag Warning | BOU | 29 hr |
| Aug 7, 9:07 AM MDT | Red Flag Warning | BOU | 35 hr |
| Aug 12, 2:33 PM MDT | Fire Weather Watch | BOU | 24 hr |
| Aug 13, 2:50 PM MDT | Red Flag Warning | BOU | 29 hr |
| Aug 23, 1:21 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Sep 22, 2:13 PM MDT | Winter Weather Advisory | BOU | 28 hr |
| Nov 16, 2:27 AM MST | Winter Weather Advisory | BOU | 39 hr |
| Nov 28, 2:29 AM MST | Winter Weather Advisory | BOU | 32 hr |
| Nov 29, 2:03 PM MST | Winter Weather Advisory | BOU | 39 hr |
| Dec 4, 2:20 AM MST | Winter Storm Watch | BOU | 12 hr |
| Dec 4, 2:20 AM MST | Winter Weather Advisory | BOU | 45 hr |
| Dec 4, 2:21 PM MST | Winter Storm Warning | BOU | 57 hr |
| Dec 5, 1:35 PM MST | Winter Weather Advisory | BOU | 24 hr |
| Dec 7, 12:57 PM MST | High Wind Watch | BOU | 20 hr |
| Dec 8, 9:12 AM MST | High Wind Warning | BOU | 39 hr |
| Dec 10, 3:39 AM MST | High Wind Warning | BOU | 31 hr |
| Dec 15, 12:55 PM MST | High Wind Watch | BOU | 13 hr |
| Dec 16, 1:51 AM MST | High Wind Warning | BOU | 58 hr |
| Dec 16, 2:06 PM MST | Winter Weather Advisory | BOU | 33 hr |
| Dec 17, 2:26 PM MST | High Wind Watch | BOU | 51 hr |
| Dec 18, 6:01 PM MST | High Wind Warning | BOU | 26 hr |
| Dec 19, 2:07 AM MST | Winter Weather Advisory | BOU | 43 hr |
| Dec 25, 1:44 PM MST | Winter Storm Watch | BOU | 17 hr |
| Dec 26, 7:13 AM MST | Winter Storm Warning | BOU | 46 hr |
| Dec 26, 2:40 PM MST | Winter Weather Advisory | BOU | 44 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 | 1 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 4 |
| Flooding | |
| River Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 25 |
| Cold | |
| Extreme Cold Warning | 1 |
| Extreme Cold Watch | 1 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 4 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.