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EF1 tornado in Polk County, Missouri

Tornado April 30, 2019 · Polk County, Missouri

EF1
Rating
1.8 mi
Path length
100 yd
Path width
$300K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

A National Weather Service storm survey confirmed an EF-1 tornado occurred. Damage associated with the tornado near Eudora was first noted with the downing of limbs west of Highway 123. The tornado intensified as it crossed the highway with several trees snapped in a convergent manner before continuing into remote areas. The damage path was again visible along Farm Road 546 where the tornado took the roof off a home, damaged another and overturned a recreational vehicle before diminishing to broken limbs along and east of Farm Road 60. Maximum wind speeds were estimated at 100 mph.

The wider storm

Very moist and unstable conditions developed over the Missouri Ozarks ahead of an intense low pressure system over the southern Plains. Widespread severe storms developed over Oklahoma and eastern Kansas during the early morning hours and tracked eastward into the Springfield county warning area during the afternoon and evening. Very heavy rainfall, hail to tennis ball size, damaging winds in excess of 70 mph and 27 tornadoes occurred with this system as storms tracked repeatedly over the region. Four injuries were reported as a result of severe storms. One injury was near Mountain Grove and three were in southeastern Greene County were an EF-2 Tornado tracked. The resulting rainfall led to widespread flash flooding, which continued into the morning of May 1st, on head water streams and low water crossings. One live was lost when a camper along Hunter Creek in Douglas County drowned as the campground flooded.

Began near Graydon Spgs (37.4450, -93.5552).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 817000. Narratives are written by the National Weather Service forecast office that issued the report.

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