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EF1 tornado in Union County, Arkansas

Tornado October 29, 2009 · Union County, Arkansas

EF1
Rating
42.9 mi
Whole path
75 yd
Path width
$3.0M
Damage as recorded

NOAA records this tornado county by county. Its path ran through Union County → Ouachita County → Union County → Calhoun County → Ouachita County → Calhoun County → Calhoun County → Ouachita County → Ouachita County → Dallas County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 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

An EF1 tornado touched down 3 miles west southwest of Smackover, Arkansas and downed large trees while snapping several others. The path width was 75 yards wide with a path length of 1.5 miles. At least 4 homes received damage from downed trees.

The wider storm

Widespread showers and thunderstorms developed along and ahead of a strong cold front as a powerful upper level storm system plowed into the southern plains during the afternoon hours of October 29th. Strong shear was in place across the region such that several tornadic thunderstorms developed...producing widespread wind damage across portions of northeast Texas, southwest Arkansas as well as northern Louisiana. These storms trained across the same general area such that flooding was widespread. Flooding was severe across northwest Louisiana where flooding was reported in many homes and businesses. Area bayous, creeks, rivers and lakes were already at high levels from the excessive heavy rainfall that fell earlier in the month. Thus, some lakes and bayous approached and succeeded their all time record stage levels.

Began near Smackover (33.3485, -92.7810).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 197606. Narratives are written by the National Weather Service forecast office that issued the report.

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