San Mateo County CA Tornado Warnings — Live Alerts & History
California · updates automatically
Active Tornado Warnings
No active tornado warnings for San Mateo County right now
This page updates automatically — new NWS tornado warnings for the county appear here within about a minute of issuance.
Tornado History for San Mateo County (Since 1950)
Tornadoes on Record
4
1950–present · NOAA/SPC
Violent (EF3+)
0
0.0% of total
Fatalities
0
Direct deaths
Strongest Rating
F1
Fujita / Enhanced Fujita
Most Recent
March 20, 2005
Latest tornado on record
Recent Tornado Warning History
| Date | Issued | Expired |
|---|---|---|
| January 5, 2026 | 11:56 PM UTC | 12:15 AM UTC |
| December 26, 2025 | 1:50 AM UTC | 2:15 AM UTC |
San Mateo County Facts
- FIPS Code
- 06081
- NWS County Code (UGC)
- CAC081
More for San Mateo County
Recent warning events
Active warnings come from the National Weather Service and refresh on
this page about once a minute. Tornado climatology is computed from the
NOAA/SPC storm events archive (1950–present). VORTEX is not a substitute
for official NWS warnings or a NOAA Weather Radio.