After a period of upper level ridging brought a return to above normal temperatures in early September, very strong easterly downslope and offshore winds off the Cascades and Coastal Ranges occurred. Winds increased rapidly during the afternoon and evening of September 7 with the passage of an unseasonably strong backdoor cold front, and persisted through much of the following day. This resulted in extremely critical fire weather conditions when the strong winds combined with extremely low relative humidity and exceptionally dry existing fuel conditions. The result was explosive growth of ongoing wildfires, and the new start and explosive spread of numerous new wildfires. Widespread wind gusts from 50-70 mph were common on ridge tops and numerous other in exposed areas, including portions of the greater Portland metro area, the Willamette Valley, and areas of the Oregon coast. Strong winds caused widespread damage to trees, and downed numerous power lines across the region, which started at least 13 additional wildfires. Large portions of the cities of Detroit, Mehama, and Gates were destroyed, and significant portions of Idanha, Mill City, and Lyons also burned. Resultant large wildfires included these named incidents - In Oregon: Beachie Creek, Chehalem Mountain/Bald Peak, Riverside, and Lionshead, and in Washington: Big Hollow. Rapidly spreading wildfires resulted in multiple fatalities, hundreds of displaced persons for many weeks, and billions of dollars in damage.

Wildfire in NORTH OREGON CASCADES, OREGON
From 07-SEP-20 11:45:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Beachie Creek wildfire started around 1100PDT on August 16, 2020 in Marion county, OR at coordinates 44.821, -122.188. The fire grew to approximately 193,500 acres before being declared officially under control on December 2, 2020. Destroyed were 486 residential homes, 36 non-residential commercial properties, 801 other minor structures. There were 160 structures damaged. Affected were the towns of Mill City, Gates, Lyons and Detroit. During this conflagration 33388 people were evacuated, 5 citizens were fatally injured; and 2 citizens and 8 responders were injured. The cause of the fire is unknown.

Wildfire in NORTH OREGON CASCADES, OREGON
From 07-SEP-20 23:30:00 to 30-SEP-20 23:59:00 (PST-8)
Reported by: Other Federal Agency

The Lionshead fire crossed into the NWS Portland CWA around 2330PDT on September 7, 2020. The fire spread into eastern Marion county, OR and small parts of Linn & Clackamas counties and grew to approximately 110,000 acres before merging with the Beachie Creek fire. Destroyed were 264 residences, 14 non-residential commercial properties, and 2 other structures. An additional 70 structures were damaged. Towns affected were Detroit, Idanha, and Breitenbush Springs resort. There were 147 people evacuated, 10 first responders injured and no fatalities. The fire was started by lightning and was declared contained on Nov 16, 2020.

Wildfire in CASCADES IN LANE COUNTY, OREGON
From 07-SEP-20 20:20:00 to 30-SEP-20 23:59:00 (PST-8)
Reported by: Other Federal Agency

The Holiday Farm wildfire started around 2020PDT on September 7, 2020 in Lane county, OR. The fire grew to approximately 173,400 acres before being brought under control on January 6, 2021. Destroyed were 431 residences, 24 non-residential commercial properties, 313 other minor structures. Damaged were 65 structures. Affected were the towns of Blue River, Vida, Nimrod; areas west of McKenzie Bridge; and areas surrounding Leaburg.  During this conflagration approximately 800 people were evacuated, 1 citizen was fatally injured, and 6 responders were injured. The cause of the fire is unknown.

Wildfire in NORTH OREGON CASCADES FOOTHILLS, OREGON
From 07-SEP-20 20:20:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Holiday Farm wildfire started around 2020PDT on September 7, 2020 in Lane county, OR at coordinates 44.172, -122.231. The fire grew to approximately 173,400 acres before being officially declared under control on January 6, 2021. Destroyed were 431 residences, 24 non-residential commercial properties, 313 other minor structures. There were 65 structures damaged.  Affected were the towns of Blue River, Vida, Nimrod; areas west of McKenzie Bridge; areas surrounding Leaburg; as well as a small part of Linn county.  During this conflagration approximately 800 people were evacuated, 1 citizen was fatally injured, and 6 responders were injured. The cause of the fire is unknown.

Wildfire in NORTH OREGON CASCADES, OREGON
From 07-SEP-20 20:20:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Holiday Farm wildfire started around 2020PDT on September 7, 2020 in Lane county, OR at coordinates 44.172, -122.231. The fire grew to approximately 173,400 acres before being officially declared under control on January 6, 2021. Destroyed were 431 residences, 24 non-residential commercial properties, 313 other minor structures. There were 65 structures damaged.  Affected were the towns of Blue River, Vida, Nimrod; areas west of McKenzie Bridge; areas surrounding Leaburg; as well as a small part of Linn county.  During this conflagration approximately 800 people were evacuated, 1 citizen was fatally injured, and 6 responders were injured. The cause of the fire is unknown.

Wildfire in CENTRAL COAST RANGE OF W OREGON, OREGON
From 07-SEP-20 23:45:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Echo Mountain Complex wildfire started around 2345PDT on September 7, 2020 in Lincoln County, OR, near Lat/Lon 45.015N, -123.903W.  The wildfire grew to approximately 2,550 acres before being declared officially contained on September 30, 2020. This wildfire resulted in 293 total structures lost, 22 structures damaged, and 160 residences significantly damaged. There were 1339 people evacuated at some point during the wildfire, and 1 first responder was injured.  Towns that experienced wildfire damage included Otis, Neotsu, and Rose Lodge.

Wildfire in NORTH OREGON CASCADES, OREGON
From 08-SEP-20 00:00:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Riverside wildfire started around 0000PDT on September 8, 2020 in Clackamas county, OR at coordinates 45.049, -122.062. The fire grew to approximately 138,000 acres before being officially declared under control on December 3, 2020. Destroyed were 56 residences and 83 minor structures. There was damage to 19 structures. Affected were the communities of Estacada, Springwater, Dodge, Elwood, Colton, Fernwood, and Glen Avon. During this conflagration 75462 people were evacuated, 1 citizen and 4 first responders injured. The fire is believed to be human caused.

Wildfire in CENTRAL OREGON COAST, OREGON
From 07-SEP-20 23:45:00 to 30-SEP-20 18:00:00 (PST-8)
Reported by: Emergency Manager

The Echo Mountain Complex wildfire started around 2345PDT on September 7, 2020 in Lincoln County, OR, near Lat/Lon 45.015N, -123.903W.  The wildfire grew to approximately 2,550 acres before being declared officially contained on September 30, 2020. This wildfire resulted in 293 total structures lost, 22 structures damaged, and 160 residences significantly damaged. There were 1339 people evacuated at some point during the wildfire, and 1 first responder was injured.  Towns that experienced wildfire damage included Otis, Neotsu, and Rose Lodge.

Wildfire in NORTH OREGON CASCADES FOOTHILLS, OREGON
From 07-SEP-20 11:45:00 to 30-SEP-20 23:59:00 (PST-8)
Reported by: Other Federal Agency

The Beachie Creek wildfire started around 1100PDT on August 16, 2020 in Marion county, OR at coordinates 44.821, -122.188.   The fire grew to approximately 193,500 acres before being declared officially under control on December 2, 2020.  Destroyed were 486 residential homes, 36 non-residential commercial properties, 801 other minor structures. There were 160 structures damaged. Affected were the towns of Mill City, Gates, Lyons, and Detroit.  During this conflagration 33388 people were evacuated,  5 citizens were fatally injured; and 2 citizens and 8 responders were injured. The cause of the fire is unknown.  This fire is also known as the Santiam Fire.

Wildfire in CASCADE FOOTHILLS IN LANE COUNTY, OREGON
From 07-SEP-20 20:20:00 to 30-SEP-20 23:59:00 (PST-8)
Reported by: Other Federal Agency

The Holiday Farm wildfire started around 2020PDT on September 7, 2020 in Lane county, OR at coordinates 44.172, -122.231. The fire grew to approximately 173,400 acres before being officially declared under control on January 6, 2021. Destroyed were 431 residences, 24 non-residential commercial properties, 313 other minor structures. There were 65 structures damaged.  Affected were the towns of Blue River, Vida, Nimrod; areas west of McKenzie Bridge; areas surrounding Leaburg; as well as a small part of Linn county.  During this conflagration approximately 800 people were evacuated, 1 citizen was fatally injured, and 6 responders were injured. The cause of the fire is unknown.

Wildfire in NORTH OREGON CASCADES FOOTHILLS, OREGON
From 08-SEP-20 00:00:00 to 30-SEP-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The Riverside wildfire started around 0000PDT on September 8, 2020 in Clackamas county, OR at coordinates 45.049, -122.062. The fire grew to approximately 138,000 acres before being officially declared under control on December 3, 2020.  Destroyed were 56 residences and 83 minor structures. There was damage to 19 structures.  Affected were the communities of Estacada, Springwater, Dodge, Elwood, Colton, Fernwood, and Glen Avon. During this conflagration 75462 people were evacuated, 1 citizen and 4 first responders injured. The fire is believed to be human caused.