Alert archive / Colorado / Boulder County / 2026
Weather alerts in Boulder County, Colorado, August 2026
16 weather alerts in August 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 16
- Warnings
- 3
- Watches
- 3
- Advisories
- 1
- Busiest day
- August 30, 20263 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| Aug 4, 1:39 AM MDT | Fire Weather Watch | BOU | 11 hr |
| Aug 4, 12:20 PM MDT | Red Flag Warning | BOU | 31 hr |
| Aug 6, 12:07 PM MDT | Heat Advisory | BOU | 3 days |
| Aug 8, 2:49 PM MDT | Special Weather Statement | BOU | 41 min |
| Aug 13, 2:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 1:06 AM MDT | Flood Watch | BOU | 19 hr |
| Aug 15, 1:28 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 1:15 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 24, 1:36 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 26, 3:53 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 27, 3:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 29, 1:29 PM MDT | Special Weather Statement | BOU | 46 min |
| Aug 29, 2:49 PM MDT | Special Weather Statement | BOU | 26 min |
| Aug 30, 1:53 PM MDT | Severe Thunderstorm Warning | BOU | 24 min |
| Aug 30, 2:10 PM MDT | Severe Thunderstorm Warning | BOU | 35 min |
| Aug 30, 3:20 PM MDT | Special Weather Statement | BOU | 115 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 | 2 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 4 |
| Flooding | |
| Flood Watch | 1 |
| Heat | |
| Heat Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
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.