Thunderstorm Wind in Appanoose County, Iowa

Thunderstorm Wind June 29, 2023 · Appanoose County, Iowa

64 mph

Estimated gust (56 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

WHO relayed reports of trees and limbs down. Straight line winds lasted for 10 to 15 minutes.

The wider storm

Storms initiated west of the area over portions of Nebraska and Kansas in the overnight hours of the 28th into the 29th, eventually leading into and across southern Iowa during the morning hours of the 29th. These storms were situated within a fairly supportive environment, including a north south gradient of MUCAPE values in the 2000 to 4000+ J/kg range, 30 to 40+ kts of effective shear, and steering flow supportive of MCS maintenance. Eventually, linear storm mode evolved into an MCV. Resulting storms produced a number of strong wind and wind damage reports, including trees downed and measured winds to 67 mph.

Began near Numa (40.6400, -93.0700).

Source: NOAA Storm Events Database, event 1106526. Narratives are written by the National Weather Service forecast office that issued the report.

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