Back-to-back low pressure systems dropping south along the coast of British Columbia and Washington brought cold air south into NW Oregon as well as plenty of moisture.  Locations in the Columbia Gorge and Hood River Valley saw 1 to 2 feet of snow.  At lower elevations, a near stationary frontal boundary the night of the 11th into the morning of the 12th dropped several inches of rain over portions of Washington, Columbia, Tillamook and Yamhill Counties.

Heavy Snow in COAST RANGE OF NW OREGON, OREGON
From 12-FEB-19 03:00:00 to 12-FEB-19 10:00:00 (PST-8)
Reported by: SNOTEL

While little-to-no snow fell at lower elevations, Seine Creek SNOTEL around 2000 feet recorded 8 inches of snow in a 7-hour period.

Heavy Snow in WESTERN COLUMBIA RIVER GORGE, OREGON
From 10-FEB-19 19:00:00 to 12-FEB-19 22:00:00 (PST-8)
Reported by: Trained Spotter

Exact amounts of snow and ice are unknown due to lack of reports.  One spotter report from Stevenson, WA had 7.5 inches of snow in a 12 hour period. Another report from the public in Stevenson, WA had 10 inches of snow in a 24 hour period. Heavy snow and ice closed I-84 in both directions east of Milepost 23 due to heavy snow and ice which caused a crash involving multiple tractor-trailers.

Flood in COLUMBIA, OREGON
From 12-FEB-19 00:00:00 to 12-FEB-19 23:00:00 (PST-8)
Location: RAINIER
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Local Official

Several structures impacted from flooding along Fox Creek in the city of Rainier, Oregon. Eventual cause may have been a blocked culvert. U.S. Highway 30 was closed at times.

Flood in WASHINGTON, OREGON
From 12-FEB-19 00:00:00 to 12-FEB-19 18:00:00 (PST-8)
Location: MOUNTAINDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Washington county reported about 40 county roads were covered by water.

Debris Flow in MULTNOMAH, OREGON
From 12-FEB-19 15:00:00 to 12-FEB-19 18:00:00 (PST-8)
Location: RIVER JCT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

At about 3 p.m. the county said Northwest Rocky Point Road between U.S. 30 and Skyline Boulevard was closed because of a large crack in the road caused by heavy rains and snowmelt.

High Wind in CENTRAL OREGON COAST, OREGON
From 11-FEB-19 10:11:00 to 12-FEB-19 08:31:00 (PST-8)
Magnitude: 56.00 MG
Reported by: Mesonet

Weather stations in Lincoln City and on the Yaquina Bridge in Newport reported wind gusts up to 64 mph.  Another weather station in Yachats reported sustained winds up to 43 mph.

Heavy Snow in UPPER HOOD RIVER VALLEY, OREGON
From 10-FEB-19 19:00:00 to 12-FEB-19 22:00:00 (PST-8)
Reported by: CoCoRaHS

A CoCoRaHS observer 1 mile SW of Hood River recorded 15.7 inches of snow in 24 hours. Another CoCoRaHS observer in Hood River recorded 11 inches of snow in 24 hours. Other reports of anywhere from 10 inches to 18 inches of snow were called in to the NWS forecast office from around the Hood River area.

Heavy Snow in CENTRAL COLUMBIA RIVER GORGE, OREGON
From 10-FEB-19 19:00:00 to 12-FEB-19 22:00:00 (PST-8)
Reported by: Official NWS Observations

On average, 5 to 10 inches of snow fell through the central Columbia Gorge.  Reports came from various networks including CoCoRaHS, trained spotters, and from our COOP observer at Bonneville Dam. Per the Oregonian (newspaper), Interstate 84 was closed in both directions east of Milepost 23 at 528 AM on February 12th due to snow.

Heavy Snow in NORTH OREGON CASCADES, OREGON
From 10-FEB-19 19:00:00 to 12-FEB-19 22:00:00 (PST-8)
Reported by: SNOTEL

Two or three bursts of heavy snow brought snowfall accumulations ranging from 12 inches at Santiam Pass to 26 inches at Timberline Lodge. Highest amounts were observed at higher elevations.

Heavy Snow in NORTH OREGON CASCADES FOOTHILLS, OREGON
From 10-FEB-19 19:00:00 to 11-FEB-19 13:00:00 (PST-8)
Reported by: Official NWS Observations

Snowfall amounts of 6 to 12 inches were observed within a 12 hour period.