Thunderstorm Wind in Decatur County, Iowa
Thunderstorm Wind June 30, 2023 · Decatur County, Iowa
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Lamoni Municipal Airport measured 67 mph wind gust.
The wider storm
In semi similar fashion to the strong and severe storms experienced on the previous morning (29th of June), storms initiated over portions of northern Kansas and southern Nebraska in conjunction with the low level jet in the very early hours of the 29th. These storms, steered by easterly mean flow, progressed across far southern Iowa and northern Missouri within an environment consisting of around 2000 J/kg MUCAPE, 30 to 40+ kts of effective shear, and a very tight north-south gradient of DCAPE (most favorably into Missouri). Storms grew upscale through the early morning hours and primarily produced strong and damaging winds. There were a couple of severe hail reports as well along with a reported lightning strike that effective blew a tree apart.
Began near (30i)lamoni Muni Arp (40.6300, -93.9000).
Source: NOAA Storm Events Database, event 1106594. Narratives are written by the National Weather Service forecast office that issued the report.
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