Alert archive / Colorado / Larimer County / 2026
Weather alerts in Larimer County, Colorado, May 2026
14 weather alerts in May 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 14
- Warnings
- 4
- Watches
- 4
- Advisories
- 2
- Busiest day
- May 17, 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 |
|---|---|---|---|
| May 3, 1:43 PM MDT | Winter Storm Watch | BOU | 34 hr |
| May 4, 12:51 AM MDT | Winter Storm Warning | BOU | 61 hr |
| May 4, 12:59 PM MDT | Freeze Watch | BOU | 23 hr |
| May 5, 11:31 AM MDT | Freeze Warning | BOU | 44 hr |
| May 13, 12:47 AM MDT | Fire Weather Watch | BOU | 11 hr |
| May 13, 11:43 AM MDT | Red Flag Warning | BOU | 33 hr |
| May 17, 4:27 AM MDT | Winter Weather Advisory | BOU | 41 hr |
| May 17, 11:53 AM MDT | Freeze Watch | BOU | 24 hr |
| May 17, 5:10 PM MDT | Special Weather Statement | CYS | 35 min |
| May 17, 10:58 PM MDT | Winter Storm Warning | BOU | 22 hr |
| May 18, 11:36 AM MDT | Frost Advisory | BOU | 20 hr |
| May 28, 5:24 PM MDT | Special Weather Statement | BOU | 51 min |
| May 28, 6:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 2:18 PM MDT | Special Weather Statement | CYS | 42 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 | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 3 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 2 |
| Frost 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.