Thunderstorm Wind in Umatilla County, Oregon

Thunderstorm Wind May 20, 2023 · Umatilla County, Oregon

62 mph

Measured gust (54 kt)

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

What the National Weather Service wrote

Mesonet station OD191, 2 miles WSW of Mission, reported a wind gust of 62 mph from the outflow boundary of a deteriorating thunderstorm at 2220 PDT.

The wider storm

Southwesterly flow aided by an approaching upper level trough facilitated another round of strong diurnal convection during the afternoon hours, starting the central Oregon and along the eastern Mountains before expanding northeastward. Strong to severe T-storms focused in Central Oregon produced up to 1.5 inch hail, strong wind gusts, and heavy downpours that resulted in areas of flash flooding.

Began near Mission (45.6600, -118.7200).

Source: NOAA Storm Events Database, event 1104749. Narratives are written by the National Weather Service forecast office that issued the report.

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