EF0 tornado in Carter County, Missouri

This was the start of the tornado track as determined by an aerial survey from the USDA Forest Service. Trees were uprooted. Peak winds were estimated near 85 mph in this very short section of track in Carter County. The tornado quickly entered Wayne County in a highly forested area.

A cyclic supercell moved northeast from Arkansas, producing two tornadoes in southeast Missouri. Both tornadoes occurred in heavily forested areas. The second tornado struck a small community called Glenallen, located near Marble Hill in Bollinger County. Several fatalities were associated with this significant tornado. The supercell was the product of a favorable environment for tornadic storms. Moderate instability and strong deep-layer wind shear coincided over the region. Mixed-layer capes were between 1000 and 1500 j/kg in the presence of effective bulk shear around 55 knots. A surface low tracked from central Kansas into Iowa, resulting in a large unstable warm sector over Missouri and Illinois. Strong low-level south to southwest winds brought unseasonably warm late-night temperatures in the mid 70's and dew points in the 60's. The onset of storms was delayed by capping in the warm sector and pockets of dry low-level air. Wind fields strengthened throughout the night and capping weakened, leading to nocturnal supercell tornadoes.