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EF1 tornado in Smith County, Mississippi

Tornado April 18, 2019 · Smith County, Mississippi

EF1
Rating
12.9 mi
Whole path
950 yd
Path width
$317K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Rankin County → Smith County → Smith County → Scott County → Scott County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 950 yards (0.54 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

This tornado developed in the creek bottom just south of Lofton Road and tracked northeast through the north side of Polkville and downed hundreds of trees and many power lines. Quickly the tornado became wide and snapped or uprooted many trees. Lofton Road was blocked by trees and as it continued northeast, CR 141 had several trees across it as well. It then crossed Highway 13 before continuing through several of the CR 538 series. In addition to the downed trees, multiple homes had minor roof damage or more substantial damage from trees on them. Maximum estimated winds 105 MPH.

The wider storm

During the daytime hours of April 18th, a developing storm system helped generate a large line of thunderstorms which then moved across the region. From this, a regional outbreak of tornadoes along with widespread wind damage occurred. This line became efficient at producing tornadoes as a meso-scale vortex developed. The combination of multiple environmental features, set the stage for 43 tornadoes to occur over the forecast area. This ranks as 4th most for a single event across the forecast area. In addition to the tornadoes, widespread wind damage occurred as well.

Began near Polkville (32.1865, -89.7211).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 813872. Narratives are written by the National Weather Service forecast office that issued the report.

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