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F0 tornado in Whatcom County, Washington

Tornado April 27, 2004 · Whatcom County, Washington

Rating

2.7 mi

Path length

100 yd

Path width

$10K

Damage as recorded

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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

A small tornado tore off some siding and part of the roof off a barn.

Began near Sumas (49.0000, -122.2167).

Source: NOAA Storm Events Database, event 5388516. Narratives are written by the National Weather Service forecast office that issued the report.

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