A series of winter systems moved through the region starting Thursday Jan. 11th through Saturday Jan. 13th, and produced moderate to heavy snow across much of the forecast area. Persistent northwest flow aloft also sustained snow showers across the mountains between the systems. The second system was far more productive, with many lower elevation areas seeing 4-7 inches and locally higher of additional accumulating snow during this period of time.

Heavy Snow in NORTH CENTRAL OREGON, OREGON
From 11-FEB-21 11:00:00 to 13-FEB-21 13:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Four inches of snow 9 ENE of Gateway and 4 inches of snow in Shaniko.

Heavy Snow in GRAND RONDE VALLEY, OREGON
From 12-FEB-21 09:00:00 to 13-FEB-21 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A Co-Op Observer in Cove, OR measured 6.4 inches in a 24 hour period ending at 9:00am PST on Feb. 13th with a 9 inch total snow depth. A social media report originating from Union, OR indicated an estimated 6 inches of snowfall in a 24 hour period ending at 8:20am PST on Feb. 13th.

Heavy Snow in FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, OREGON
From 11-FEB-21 18:00:00 to 13-FEB-21 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A public report originating from 13 miles SSW of Lexington, OR indicated an estimated 8 inches of snowfall at 6:00pm PST on Feb. 12th. A Co-Op Observer in Heppner, OR reported 6 inches of snowfall in a 24 hour period ending at 10:21am PST on Feb. 13th with 10 inches of total snowfall.

Heavy Snow in FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, OREGON
From 12-FEB-21 11:00:00 to 13-FEB-21 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 4 miles ESE of Pilot Rock, OR measured 8 inches of snowfall in a 24 hour period ending at 12:00pm PST on Feb. 13th with a total of 13 inches of snowfall in a 48 period. A Co-Op Observer 2 miles NW of Pendleton, OR measured 6.7 inches of snow at 10:00am PST on Feb. 13th.

Heavy Snow in EASTERN COLUMBIA RIVER GORGE, OREGON
From 11-FEB-21 09:30:00 to 13-FEB-21 13:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A Cocorahs observer 4 miles ESE of Mosier, OR measured 7 inches of snowfall in a 24 hour period ending at 9:30am PST on Feb. 13th. An amateur radio report orginating 1 mile SW of the City of the Dalles, OR indicated 5 inches of snowfall at 12:10am PST on Feb 13th.

Heavy Snow in LOWER COLUMBIA BASIN, OREGON
From 11-FEB-21 12:00:00 to 13-FEB-21 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A Cocorahs observer 1 mile WSW of Umatilla, OR measured 6 inches of snow at 7:00am PST on Feb.13th. A public report originating from Hermiston, OR indicated 6 inches of snowfall between 6:00pm PST on Feb. 12th and 8:30am PST on Feb. 13th with a total of 9 inches so far.

Heavy Snow in JOHN DAY BASIN, OREGON
From 11-FEB-21 12:00:00 to 13-FEB-21 15:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A CO-OP Observer 1 mile SE of Spray, OR measured 6 inches of snow at 9:00am PST on Feb. 13th. A Cocorahs observer 1 mile NW of John Day, OR measured 4.5 inches of snow at 7:00am PST on Feb. 13th.