Flood in Benton County, Oregon
Flood April 8, 2019 – April 9, 2019 · Benton County, Oregon
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
The Long Tom River near Monroe crested at 9.1 feet around 4 PM on April 8th, which is 0.1 foot above flood stage.
The wider storm
A particularly strong atmospheric river took aim for the south Willamette Valley, sitting over areas south of Salem for two days, producing anywhere from 2.5 to 5 inches of rain over a 48 hour period. Some areas in the Cascades and Cascade Foothills saw 5 to 7 inches of rain over that 48 hour period. Heavy rain combined with snow melt from all the snow from a few weeks prior in this same area caused flooding along most of our rivers in this area as well as along the main-stem Willamette River up to around Oregon City.
Began near Monroe (44.3151, -123.3008).
Source: NOAA Storm Events Database, event 818946. Narratives are written by the National Weather Service forecast office that issued the report.
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