Alert archive / California / Freeze Warnings / 2021
Freeze Warnings in California, March 2021
15 freeze warnings in March 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in March 2021. Tap one for its archive.
- Freeze Warnings
- 15
- Busiest day
- March 2, 20211 freeze warnings
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, 6:34 PM PST | Freeze Warning | EKA | Lake, Mendocino | 14 hr |
| Mar 4, 1:07 AM PST | Freeze Warning | EKA | Lake, Mendocino | 7 hr |
| Mar 6, 3:32 AM PST | Freeze Warning | EKA | Lake, Mendocino | 29 hr |
| Mar 7, 2:04 PM PST | Freeze Warning | EKA | Lake, Mendocino | 17 hr |
| Mar 10, 2:31 PM PST | Freeze Warning | EKA | 18 hr | |
| Mar 11, 1:04 PM PST | Freeze Warning | EKA | Lake, Mendocino | 20 hr |
| Mar 12, 1:43 PM PST | Freeze Warning | EKA | Lake, Mendocino | 19 hr |
| Mar 13, 12:36 PM PST | Freeze Warning | EKA | Lake, Mendocino | 18 hr |
| Mar 15, 1:38 PM PDT | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Mar 16, 1:27 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 20 hr |
| Mar 20, 2:30 PM PDT | Freeze Warning | EKA | Mendocino | 18 hr |
| Mar 22, 3:28 AM PDT | Freeze Warning | EKA | Lake, Mendocino | 30 hr |
| Mar 23, 2:04 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 19 hr |
| Mar 25, 2:12 PM PDT | Freeze Warning | EKA | Lake, Mendocino | 19 hr |
| Mar 29, 2:24 PM PDT | Freeze Warning | EKA | Humboldt, Lake, Mendocino | 19 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 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. Warning verification from the Mesonet's Cow. Rebuilt daily.