EF0 tornado in Grand Forks County, North Dakota

Tornado August 27, 2016 · Grand Forks County, North Dakota

EF0

Rating

0.5 mi

Path length

100 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

The tornado touched down in an open field. Peak winds were estimated at 70 mph.

The wider storm

By the afternoon of August 27th, temperatures across most of the area had risen into the 70s, along with dew points around 60 F. A fairly strong upper level disturbance also moved into the area. Thunderstorms broke out over the southern Red River Valley in the early afternoon, then expanded north and east through the rest of the afternoon and early evening. The thunderstorms mainly dropped large hail, but a few tornadoes also occurred.

Began near Arvilla (47.8600, -97.4900).

Other tornadoes from the same storm system

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

EF3 Traill County EF1 Grand Forks County

Source: NOAA Storm Events Database, event 649096. Narratives are written by the National Weather Service forecast office that issued the report.

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