EF1 tornado — Augusta County, Virginia

EF1 tornado in Augusta County, Virginia

Tornado April 28, 2011 · Augusta County, Virginia

EF1

Rating

4.0 mi

Path length

150 yd

Path width

$100K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

Numerous trees were snapped and uprooted. Damage occurred at several homes between Christian and Churchville including removed roofing and destroyed outbuildings.

The wider storm

A strong cold front slowly passed through the region during the morning and early afternoon hours of the 28th. A southerly flow ahead of the front caused deep moisture over the area. The deep moisture combined with a mid-level trough to produce moderate amounts of instability. The cold front combined with the instability to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft.

Low level wind speed and direction changed rapidly with height causing tornadoes to develop in some of the stronger thunderstorms.

Other tornadoes from the same storm system

Source: NOAA Storm Events Database, event 302222. Narratives are written by the National Weather Service forecast office that issued the report.

EF1 tornado in Augusta County, Virginia

What the National Weather Service wrote

The wider storm

Other tornadoes from the same storm system

Tornadoes near your address