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EF0 tornado in Anchorage Muni To Bird Creek, Alaska

Tornado April 19, 2024 · Anchorage Muni To Bird Creek, Alaska

EF0
Rating
0.0 mi
Path length
1 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 EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

Weak landspout observed near Rusty Point.

The wider storm

A weak landspout was observed near Rusty Point, AK, by a member of the general public in Anchorage. A lenticular cloud was noted over the mountain peak at the time, which was attached to the landspout. With no radar available to aid in the landspout's diagnosis, it is theorized that downsloping winds, enhanced by south and southeasterly winds, created an area of wind shear in a topographically varying region, which was then lifted vertically with an upslope flow, thus producing the observed landspout.

Began near Anchorage (61.1300, -149.6600).

Source: NOAA Storm Events Database, event 1177769. Narratives are written by the National Weather Service forecast office that issued the report.

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