PORTLAND, Ore. (KOIN) — It’s possible this month will be the wettest September on record at PDX after the weekend rain rolls through Oregon.
The record was set in 1986 when Portland had 4.3 inches of rain. So far this month, Portland has received 2.24 inches of rain, which is above average. It’s possible there could be another 2 to 4 inches of rain this weekend.
A hydrologist with the National Weather Service told KOIN 6 News rivers at this time of year are at their lowest around Portland. But this September has been abnormally wet and the ground is saturated. The biggest concern is floods from small creeks and streams and urban flooding from clogged drains.
The National Weather Service said Saturday’s storm will contain tropical moisture from a former western Pacific typhoon. The second storm on Sunday may even be stronger, wih heavy rain between Southwest Washington and Northwest Oregon through Sunday night.
Rainfall estimates along the coast range and Cascades through Monday is between 7 and 10 inches. This much rain will lead to debris flows and landslides in steeper terrain. That may include the Columbia River Gorge, the west hills of Portland and the foothills of the Cascades.
Throughout Oregon, counties and localities have areas to pick up sandbags. These are self-service, bring your own shovel locations:
5155 N. Silverton Road
300 Cordon Road
Lincoln County — residents should go to local hardware stores
• 509J School District Offices–1555 SW 35th Street
• Cheldelin Middle School-987 NE Conifer Boulevard
• Corvallis High School–1400 NW Buchanan Avenue (in parking lot off 11th Street)
• Lincoln Elementary School–110 SE Alexander Avenue
• Wilson Middle School–2701 NW Satinwood
KOIN 6 News will continue to follow the storm.
KOIN 6 meteorologist Sally Showman contributed to this report.