Alert archive / Colorado / Frost Advisories
Frost Advisories in Colorado, 2021
9 frost advisories in 2021. 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 2021. Tap one for its archive.
- Frost Advisories
- 9
- Busiest month
- October8 frost advisories
- Busiest day
- October 10, 20212 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 21, 2:07 PM MDT | Frost Advisory | BOU | Elbert, Larimer, Lincoln, Logan, Morgan, Weld | 18 hr |
| Oct 10, 2:04 PM MDT | Frost Advisory | BOU | Arapahoe, Douglas, Elbert, Lincoln, Logan, Morgan and 1 more | 18 hr |
| Oct 10, 2:13 PM MDT | Frost Advisory | PUB | El Paso | 18 hr |
| Oct 13, 3:00 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Oct 13, 4:40 PM MDT | Frost Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more | 15 hr |
| Oct 14, 3:22 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
| Oct 20, 2:54 AM MDT | Frost Advisory | GLD | Yuma | 29 hr |
| Oct 21, 1:48 PM MDT | Frost Advisory | GLD | Yuma | 18 hr |
| Oct 24, 1:28 PM MDT | Frost Advisory | GLD | Yuma | 18 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Yuma County5
- Logan County3
- Morgan County3
- Weld County3
- Elbert County2
- Larimer County2
- Lincoln County2
- Arapahoe County2
- Douglas County2
- Cheyenne County2
- Kit Carson County2
- El Paso County1
- Adams County1
- Boulder County1
- Broomfield County1
- Denver County1
- Jefferson County1
- Phillips County1
- Sedgwick County1
- Washington County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.