F0 tornado in San Mateo County, California

Tornado February 7, 1998 · San Mateo County, California

Rating

0.2 mi

Path length

50 yd

Path width

EF0EF1EF2EF3EF4EF5Unrated

NOAA recorded where this tornado touched down but not where it lifted, so it appears as a point. Other tornadoes recorded nearby that day are shown faint.

What F0 means. This tornado was rated on Fujita’s original scale, used until 2007. F0 meant light damage: shingles and siding peeled, gutters torn, branches broken; the scale paired it with winds of 40–72 mph, figures later judged too high, especially toward the top of the scale, and revised downward in the Enhanced Fujita scale. Ratings then, as now, came from the damage.

What the National Weather Service wrote

Weak tornado ripped up some trees. Appears it began as a waterspout and moved on shore.

Began near Half Moon Bay (37.4700, -122.4300).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

F0 Santa Clara County F0 Contra Costa County

Source: NOAA Storm Events Database, event 5640249. Narratives are written by the National Weather Service forecast office that issued the report.

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