Alert archive / Colorado / Frost Advisories
Frost Advisories in Colorado, 2023
3 frost advisories in 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Frost Advisories
- 3
- Busiest month
- October2 frost advisories
- Busiest day
- October 6, 20232 frost advisories
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 | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 2:29 PM MDT | Frost Advisory | PUB | Alamosa, Conejos, Costilla, Rio Grande | 17 hr |
| Oct 6, 2:56 AM MDT | Frost Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more | 30 hr |
| Oct 6, 3:51 AM MDT | Frost Advisory | PUB | Alamosa, Bent, Conejos, Costilla, Crowley, El Paso and 6 more | 28 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alamosa County2
- Conejos County2
- Costilla County2
- Rio Grande County2
- Adams County1
- Arapahoe County1
- Boulder County1
- Broomfield County1
- Denver County1
- Douglas County1
- Elbert County1
- Jefferson County1
- Larimer County1
- Lincoln County1
- Weld County1
- Bent County1
- Crowley County1
- El Paso County1
- Kiowa County1
- Otero County1
- Prowers County1
- Pueblo County1
- Saguache County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.