San Francisco Tornado Warning 2024. Strong storm brings a rarity in san francisco: San francisco last saw a tornado in 2005, though that struck without any clear radar signature, so no warning was issued in that case, nws meteorologist roger glass told.
The national weather service has lifted a tornado threat for san francisco and northern san mateo county. The national weather service confirmed that an ef1 tornado touched down in scotts valley, ca, saturday afternoon.