Alert archive / California / Frost Advisories / 2020
Frost Advisories in California, March 2020
17 frost advisories in March 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 March 2020. Tap one for its archive.
- Frost Advisories
- 17
- Busiest day
- March 3, 20202 frost advisories
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 2:42 PM PST | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Mar 3, 4:45 AM PST | Frost Advisory | EKA | Mendocino | 4 hr |
| Mar 3, 1:33 PM PST | Frost Advisory | EKA | Lake, Mendocino | 19 hr |
| Mar 4, 2:05 PM PST | Frost Advisory | EKA | Lake, Mendocino | 19 hr |
| Mar 7, 2:10 PM PST | Frost Advisory | EKA | Mendocino | 19 hr |
| Mar 9, 5:28 AM PDT | Frost Advisory | EKA | Lake, Mendocino | 28 hr |
| Mar 10, 3:36 PM PDT | Frost Advisory | EKA | Lake, Mendocino | 17 hr |
| Mar 15, 4:31 AM PDT | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 28 hr |
| Mar 18, 4:24 AM PDT | Frost Advisory | EKA | Lake, Mendocino | 23 hr |
| Mar 20, 2:39 PM PDT | Frost Advisory | EKA | Lake, Mendocino | 18 hr |
| Mar 21, 2:10 PM PDT | Frost Advisory | EKA | Lake, Mendocino | 19 hr |
| Mar 22, 2:21 PM PDT | Frost Advisory | EKA | Lake, Mendocino | 19 hr |
| Mar 24, 8:54 AM PDT | Frost Advisory | EKA | Mendocino | 24 hr |
| Mar 25, 2:43 AM PDT | Frost Advisory | MTR | Marin, Napa, Sonoma | 30 hr |
| Mar 25, 1:37 PM PDT | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Mar 26, 1:02 PM PDT | Frost Advisory | MTR | Marin, Napa, Sonoma | 20 hr |
| Mar 26, 3:52 PM PDT | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 17 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
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.