Alert archive / California / Tornado Warnings
Tornado Warnings in California, 2011
11 tornado warnings in 2011. 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 tornado warnings reaches back to 1986.
Tornado Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Tornado Warnings
- 11
- Busiest month
- May4 tornado warnings
- Busiest day
- May 26, 20113 tornado warnings
Over time
By month
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 |
|---|---|---|---|---|
| Feb 19, 6:06 PM PST | Tornado Warning | LOX | Santa Barbara, Ventura | 39 min |
| Mar 18, 11:02 AM PDT | Tornado Warning | MTR | San Mateo | 28 min |
| Mar 21, 3:05 PM PDT | Tornado Warning | STO | Colusa, Glenn | 40 min |
| Mar 21, 3:48 PM PDT | Tornado Warning | STO | Colusa, Glenn | 27 min |
| May 17, 6:51 PM PDT | Tornado Warning | STO | Tehama | 24 min |
| May 25, 5:12 PM PDT | Tornado Warning | STO | Butte, Glenn | 63 min |
| May 25, 6:10 PM PDT | Tornado Warning | STO | Butte, Glenn | 35 min |
| May 25, 6:45 PM PDT | Tornado Warning | STO | Butte | 45 min |
| Jun 1, 3:18 PM PDT | Tornado Warning | STO | Sacramento, Yolo | 42 min |
| Jun 1, 5:32 PM PDT | Tornado Warning | STO | Butte, Sutter, Yuba | 43 min |
| Jun 1, 6:04 PM PDT | Tornado Warning | STO | Nevada, Placer, Sutter, Yuba | 41 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.