Alert archive / Colorado / Frost Advisories
Frost Advisories in Colorado, 2020
17 frost advisories in 2020. 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 2020. Tap one for its archive.
- Frost Advisories
- 17
- Busiest month
- May7 frost advisories
- Busiest day
- May 9, 20203 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 |
|---|---|---|---|---|
| May 4, 2:47 PM MDT | Frost Advisory | BOU | Larimer, Logan, Morgan, Weld | 17 hr |
| May 5, 2:08 PM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 19 hr |
| May 5, 2:31 PM MDT | Frost Advisory | BOU | Adams, Arapahoe, Elbert, Larimer, Lincoln, Logan and 3 more | 17 hr |
| May 9, 2:52 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 29 hr |
| May 9, 3:03 AM MDT | Frost Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 29 hr |
| May 9, 2:56 PM MDT | Frost Advisory | PUB | Crowley, El Paso, Kiowa, Prowers | 17 hr |
| May 11, 5:15 AM MDT | Frost Advisory | BOU | Logan, Morgan, Phillips, Sedgwick, Washington, Weld | 2 hr |
| Sep 28, 2:22 PM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson | 18 hr |
| Sep 28, 2:54 PM MDT | Frost Advisory | PUB | Baca, Bent, Crowley, Kiowa, Prowers | 17 hr |
| Sep 28, 7:36 PM MDT | Frost Advisory | BOU | Elbert, Lincoln | 12 hr |
| Oct 1, 2:50 AM MDT | Frost Advisory | GLD | Yuma | 29 hr |
| Oct 3, 6:37 PM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 13 hr |
| Oct 11, 2:44 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 29 hr |
| Oct 14, 2:52 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson | 29 hr |
| Oct 14, 3:58 AM MDT | Frost Advisory | PUB | Kiowa | 28 hr |
| Oct 14, 3:44 PM MDT | Frost Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more | 17 hr |
| Oct 18, 2:39 AM MDT | Frost Advisory | GLD | Cheyenne, Kit Carson, Yuma | 30 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cheyenne County7
- Kit Carson County7
- Yuma County6
- Logan County5
- Morgan County5
- Weld County5
- Larimer County4
- Elbert County4
- Lincoln County4
- Washington County4
- Adams County3
- Arapahoe County3
- Phillips County3
- Sedgwick County3
- Kiowa County3
- Boulder County2
- Broomfield County2
- Denver County2
- Douglas County2
- Jefferson County2
- Crowley County2
- Prowers County2
- El Paso County1
- Baca County1
- Bent County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.