After a series of snow events in the lowlands and mountains of western Washington, a system off the Pacific brought a modifying airmass towards the area right before the Christmas holiday. Warmer Pacific air was able to overrun lingering cold air very near the surface, producing a warm layer of classic characteristic of a freezing rain profile. As such, measurable ice accumulation led to hazardous impacts across the area, most noticeably to roadways and travel.

Ice Storm in SEATTLE AND VICINITY, WASHINGTON
From 23-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

Significant ice accumulation was reported form multiple sources during the morning hours of Dec 23. SeaTac airport reported around 0.20 inches of freezing rain by 8am on the 23rd. Other reports included: 0.25 inches in Des Moines, 0.13 inches at the NWS Seattle Office, 0.25 inches in Kenmore, 0.20 inches in Renton, and 0.13 inches in Mountlake Terrace. The highest amounts were reported from West Seattle at 0.3 inches, 0.3 inches in Federal Way, and 1 mile west of SeaTac at 0.4 inches.

Ice Storm in TACOMA AREA, WASHINGTON
From 23-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

Numerous reports on social media confirmed the presence of a dangerous ice storm around the Tacoma area. Reports included: 0.2 inches measured in Auburn, 0.25 inches around Tacoma, Lakewood, and Gig Harbor.

Ice Storm in EVERETT AND VICINITY, WASHINGTON
From 23-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

Not as many reports were received around the Everett area, but an ice storm brought impacts to travel and roadways on the 23rd. One report out of Marysville measured 0.15 inches of ice.

Ice Storm in CASCADES OF SNOHOMISH AND KING COUNTIES, WASHINGTON
From 23-DEC-22 20:00:00 to 24-DEC-22 12:00:00 (PST-8)
Reported by: Park/Forest Service

Freezing rain plagued the Passes during the early morning hours of Dec 24 as cold air lingered near the surface. Both Passes were closed around 6am due to freezing rain accumulation of around 1 inch. US 2 was closed into far western Chelan county and I-90 was closed from North Bend to Ellensburg.

Ice Storm in BELLEVUE AND VICINITY, WASHINGTON
From 23-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

An ice storm during the morning and afternoon hours on the 23rd resulted in major impacts across the Bellevue area just before the Christmas holiday. Reports around the area from social media included: 0.10-0.15 inches of ice around Sammamish and Woodinville. The highest reports were out of Kirkland and Issaquah where 0.25 inches and 0.30 inches were reported, respectively.

Ice Storm in WESTERN WHATCOM COUNTY, WASHINGTON
From 22-DEC-22 05:00:00 to 24-DEC-22 00:00:00 (PST-8)
Reported by: Social Media

An ice storm caused major impacts across Western Whatcom County on Dec 23. Some reports around the area included: 0.2 inches of ice around Glacier, and numerous reports around Bellingham, including ice coating planes at the airport and 0.38 inches of ice around downtown, as well as some reports around the remainder of the city around 0.2 inches. The most ice was reported out of Lynden with 0.5 inches.

Ice Storm in BREMERTON AND VICINITY, WASHINGTON
From 23-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

Significant ice accumulation resulted in major impacts across the Kitsap Peninsula just days before the Christmas holiday. Numerous reports were drawn from social media including: a report of 0.25 inches of ice in Port Orchard by 5am on the 23rd, reports of 0.1 inches and up to 0.27 inches around Seabeck. The highest report received was out of Silverdale where 0.4 inches of ice was measured.

Ice Storm in CENTRAL COAST, WASHINGTON
From 22-DEC-22 02:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

An ice storm caused major impacts along the central WA Coast. A report out of Aberdeen measured 0.25 inches of ice.

Ice Storm in SOUTHWEST INTERIOR, WASHINGTON
From 22-DEC-22 22:00:00 to 23-DEC-22 16:00:00 (PST-8)
Reported by: Social Media

First reports of freezing rain were provided by spotters on the night of the 22nd, where multiple collisions were the result from freezing rain along I-5. It was also reported that ice was beginning to coat surfaces in Chehalis late that evening. By 4am on the 23rd, reports of 0.2 inches of ice were received out of Tumwater and then by 10am, reports from around Olympia measured around 0.25 inches of ice. Lacey, nearby to Olympia received around 0.23 inches of ice.