An atmospheric river event brought flooding, record breaking rainfall, and record high temperatures to Western Washington.

Heavy Rain in KING, WASHINGTON
From 04-DEC-23 00:00:00 to 05-DEC-23 00:00:00 (PST-8)
Location: JUANITA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A record rainfall of 1.51 inches fell at the National Weather Service office in Seattle. This broke the previous daily record of 1.39 inches set in 1946.

Heavy Rain in GRAYS HARBOR, WASHINGTON
From 04-DEC-23 00:00:00 to 05-DEC-23 00:00:00 (PST-8)
Location: (HQM)BOWERMAN FLD HO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record rainfall of 2.93 inches at the Hoquiam Airport broke the previous daily record of 2.30 inches set in 1990.

Heavy Rain in KING, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Location: (SEA)SEATTLE-TACOMA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record rainfall of 2.39 inches at Seattle-Tacoma airport broke the previously daily record of 1.67 inches in 1970.

Heavy Rain in KING, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Location: JUANITA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A record rainfall of 1.88 inches was recorded the National Weather Service office in Seattle. This broke the previous daily record of 1.82 inches set in 1933.

Heat in SEATTLE AND VICINITY, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record high temperature of 59 degrees was set at Seattle-Tacoma airport. This broke the previous daily record of 58 degrees in 2020.

Heavy Rain in CLALLAM, WASHINGTON
From 04-DEC-23 00:00:00 to 05-DEC-23 00:00:00 (PST-8)
Location: QUILLAYUTE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record rainfall of 4.19 inches was recorded at the Quillayute airport. This broke the previous daily record of 1.82 inches set in 1971.

Heavy Rain in THURSTON, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Location: (OLM)OLYMPIA ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record rainfall of 2.96 inches was recorded at the Olympia airport. This broke the previous daily record of 2.18 inches in 1970.

Heat in WESTERN WHATCOM COUNTY, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record high temperature of 59 degrees was recorded at Bellingham airport. This broke the previous daily record of 58 degrees set in 1987.

Flood in SNOHOMISH, WASHINGTON
From 05-DEC-23 02:00:00 to 06-DEC-23 22:00:00 (PST-8)
Location: GOLD BAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Flooding occurred on the Snohomish River and record flooding occurred on the North Fork, South Fork, and the main stem Stillaguamish River. Water rescues were need in the Stanwood area.

Heavy Rain in THURSTON, WASHINGTON
From 05-DEC-23 00:00:00 to 06-DEC-23 00:00:00 (PST-8)
Location: (OLM)OLYMPIA ARPT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A record high temperature of 62 degrees was recorded at Olympia airport. This broke the previous daily record of 56 degrees set in 2020.