A prolonged period of northwest flow over the Pacific Northwest guided several rounds of moisture advection across the mountain zones, leading to upslope moderate to heavy snow showers nearly each day. Meanwhile, surface frontal systems and a series of shortwave troughs in the flow aloft produced moderate to heavy snow as well as some periods of freezing rain across the lower elevations. Strong winds were also produced as a result of these shortwave troughs and surface frontal systems at the beginning and end of the prolonged winter weather conditions. During this extended period of winter weather, the I-84 and several state and US highways in Oregon and Washington closed for extended periods of time due to increased traffic accidents from ice and/or moderate to heavy snow accumulations on roadways.

High Wind in GRAND RONDE VALLEY, OREGON
From 02-JAN-22 07:00:00 to 03-JAN-22 16:00:00 (PST-8)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The AWOS station KLGD measured a peak wind gust of 63 MPH at 0748 PST on Jan. 2nd. The mesonet station DW6879 1 mile south of Union, OR measured a peak wind gust of 62 mph at 0800 PST on Jan. 3rd.

High Wind in FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, OREGON
From 02-JAN-22 19:00:00 to 03-JAN-22 11:25:00 (PST-8)
Magnitude: 81.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Oregon DOT station OD181 at mile post 219 on west bound I-84 measured a 93 mph wind gust at 0606 PST on Jan. 3rd. The mesonet station AS881 4 miles ENE of Mission, OR measured a 68 mph wind gust at 1945 PST on Jan. 2nd.

High Wind in NORTH CENTRAL OREGON, OREGON
From 02-JAN-22 19:00:00 to 03-JAN-22 11:25:00 (PST-8)
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Oregon DOT station ODT43 5 miles WSW of Shaniko, OR measured a 69 mph wind gust at 0515 PST on Jan. 3rd. The North Pole Ridge RAWS station measured a 68 mph wing gust at 0248 PST on Jan. 3rd.

Heavy Snow in EAST SLOPES OF THE OREGON CASCADES, OREGON
From 02-JAN-22 16:00:00 to 06-JAN-22 03:50:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 6 miles SSW of Three Rivers, OR measured 19 inches of new snow in a 24 hour period ending at 0800 PST on the Jan. 4th. The Cocorahs station OR-DS-35 2 miles WNW of Sisters, OR measured 14 inches of new snow over a 24 hour period ending at 0600 PST on Jan. 4th.

Heavy Snow in CENTRAL OREGON, OREGON
From 03-JAN-22 14:35:00 to 04-JAN-22 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

The Cocorahs observer OR-DS-29 1.5 miles WSW of Bend, OR measured 7.5 inches of new snow at 0700 PST on Jan. 4th. The Co-Op observer PRI03 1.7 miles E of Prineville, OR measured 4 inches of new snow at 1000 PST on Jan. 4th.

Heavy Snow in OCHOCO-JOHN DAY HIGHLANDS, OREGON
From 03-JAN-22 17:00:00 to 06-JAN-22 09:30:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Rock Springs Snotel measured 6 inches of new snow over a 24 hour period ending at 1700 PST on Jan. 5th. A Cocorahs observer 7 miles NNW of Seneca, OR measured 6.4 inches of new snow at 0930 PST on Jan. 6th.

Heavy Snow in NORTH CENTRAL OREGON, OREGON
From 05-JAN-22 19:00:00 to 06-JAN-22 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A social media report indicated 4 inches of new snow had fallen 1 mile SSE of Grass Valley, OR at 1938 PST on Jan. 5th. A social media report indicated 4 inches of new snow had fallen in Moro, OR at 0446 PST on Jan. 6th.

Heavy Snow in NORTHERN BLUE MOUNTAINS, OREGON
From 04-JAN-22 14:43:00 to 06-JAN-22 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter 10 miles E of Weston, OR measured 24 inches of new snow in a 48 hour period ending at 1700 PST on Jan. 4th. A report from a broadcast media report indicated that 14 inches of new snow had fallen 16 miles SE of Mission, OR at 0600 PST on Jan. 6th.

Heavy Snow in SOUTHERN BLUE MOUNTAINS, OREGON
From 03-JAN-22 12:00:00 to 04-JAN-22 16:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The SNOTEL site Madison Butte 17 miles S of Heppner, OR measured 8 inches of new snow at 0300 PST on Jan. 4th. The SNOTEL site Beaver Reservoir 14 miles SW of La Grande, OR measured 7 inches of new snow at 1200 PST on Jan. 4th.

Heavy Snow in SOUTHERN BLUE MOUNTAINS, OREGON
From 04-JAN-22 19:00:00 to 06-JAN-22 03:50:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The SNOTEL site Bowman Springs 19 miles W of La Grande, OR measured 10 inches of new snow in a 24 hour period ending at 1600 PST on Jan. 5th. The SNOTEL site Lucky Strike 10 miles NNE of Ukiah, OR measured 9 inches of new snow in a 24 hour period ending at 1800 PST on Jan. 5th.

Heavy Snow in EASTERN COLUMBIA RIVER GORGE, OREGON
From 05-JAN-22 22:00:00 to 06-JAN-22 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A Cocorahs observer 4 miles ESE of Mosier, OR measured 4.5 inches of new sow at 0700 PST on Jan. 6th.

Heavy Snow in GRAND RONDE VALLEY, OREGON
From 04-JAN-22 19:00:00 to 06-JAN-22 12:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A social media report indicated 11 inches of new snow had fallen in Summerville, OR at 2132 PST on Jan. 5th.  A Co-op observer 1 mile ENE of Cove, OR measured 5 inches of new snow in a 24 hour period ending at 0900 PST on Jan. 6th.

High Wind in NORTH CENTRAL OREGON, OREGON
From 07-JAN-22 07:00:00 to 07-JAN-22 21:00:00 (PST-8)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The RAWS site PAF03 Patjens 8 miles WSW of Grass Valley, OR measured a 64 mph wind gust at 0948 PST on Jan. 7th. The RAWS site WSB03 Wasco Butte measured a 61 mph wind gust at 0914 PST on Jan. 7th.

High Wind in FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, OREGON
From 07-JAN-22 07:00:00 to 07-JAN-22 21:00:00 (PST-8)
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The mesonet station AS881 4 miles ENE of Mission, OR measured a 61 mph wind gust at 0945 PST on Jan. 7th. The ASOS KPDT measured a 58 mph wind gust at 1235 PST on Jan. 7th.

High Wind in EASTERN COLUMBIA RIVER GORGE, OREGON
From 07-JAN-22 07:00:00 to 07-JAN-22 21:00:00 (PST-8)
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The mesonet station XMRY 5 miles WSW of Rufus, OR measured a 67 mph wind gust at 1515 PST on Jan. 7th.