During mid August, moisture from tropical storm Fausto moved along the coast of southern CA and made landfall over central and northern California. This system, combined with the an oppressive high pressure system that had predominately dry air, caused widespread dry thunderstorms to develop.  Thousands of lightning strikes occurred overnight, which combined with the critical dry fuels, led to massive wildfire development. The August, the North, the LNU, and SCU Complexes all started between August 15 and 17.
The August Complex is still ongoing as of October 29, is the largest fire in California history, and is spread across the county warning areas of weather forecast offices Sacramento and Eureka. One fatality and injury occurred on August 27 at the August Complex due to a vehicular accident, many structures were destroyed or damaged.
The LNU and SCU complexes are mainly within the county warning area of weather forecast office Monterey; however, both fires spread into Sacramento's forecast area.
The LNU Complex caused significant damage in Solano County, including 2 fatalities, the evacuation of Vacaville and Fairfield, and the closure of I-80. Yolo County was also affected by the fires and had evacuations and road closures. 3 Fatalities occurred in Napa County. It has been difficult to find detailed data, but there were 5 injuries that occurred, 4 civilian and 1 first responded. The LNU Complex finally becomes fully extinguished by October 1, 2020.
The SCU Complex covered large swaths of land over Santa Clara, Alameda, Contra Costa, San Joaquin, Merced, and Stanislaus counties.  Per the last CalFire incident update, 6 injuries occurred, 4 were first responder and 2 were civilian. The fires burned caused significant damage over the area. The SCU Complex finally becomes fully contained on October 1, 2020.
Finally, the North Complex was also started by lightning on August 17 at 8AM PST. It is still on going at the time of this preparation. Fire activity occurred for the month of August, but extreme grow of this fire would not happen until September.

Wildfire in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 17-AUG-20 00:00:00 to 31-AUG-20 23:59:00 (PST-8)
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The LNU Complex started on August 17 and will eventually become contained on October 2, 2020. This fire ends up burning a total of 363, 220 acres, destroying 1491 structures, including an NWS COOP site, and damaging 232 structures. For Solano County, 42,00 acres were burned, 309 homes were destroyed, 854 structures were damaged, and 1,426 utility poles were replaced. Many evacuations occurred, including larger sized populations such as Fairfield, Vacaville, and Travis Air force Base. Multiple road closures happened as well, including Interstate 80 for a brief period. Finally 5 deaths, which are detailed and recorded as separate events, and 5 injuries happened because of the fire. Injury information has been hard to come by with the latest information being 4 civilian and 1 first responder injury.

Wildfire in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 17-AUG-20 00:00:00 to 31-AUG-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

CalFire reported a total of 5 fatalities for the LNU Complex, 2 of which occurred in Solano County which is in Sacramento's county warning area and 3 in Napa County which is in Monterey's county warning area. The first death recorded is of a man who chose not to evacuate his home in rural Vacaville. Officials completed a subsequent check on the man and found him deceased.

Wildfire in SOUTHERN SACRAMENTO VALLEY, CALIFORNIA
From 17-AUG-20 00:00:00 to 31-AUG-20 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

CalFire reported a total of 5 fatalities for the LNU Complex, 2 of which occurred in Solano County which is in Sacramento's county warning area and 3 in Napa County which is in Monterey's county warning area. The second death recorded is of a man who lived in a rural area of the greater Vacaville area and did not have running water or electricity on the property. Cause of death is likely due to fire and asphyxiation from smoke. Date of death is estimated based on news articles and information.

Wildfire in NORTHERN SAN JOAQUIN VALLEY, CALIFORNIA
From 16-AUG-20 00:00:00 to 31-AUG-20 23:59:00 (PST-8)
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The SCU Complex started on August 16 and eventually becomes contained on October 1, 2020. It covered Santa Clara, Alameda, Contra Costa, San Joaquin, Merced, and Stanislaus counties which span the county warning areas of Monterey and Sacramento offices. This fire ends up burning a total of 396, 624 acres, destroying 136 structures and 86 minor structures, and damaging 26 structures. 6 injuries were reported, 4 of which were first responders and 2 civilian; however, detailed data for injuries have been hard to come by. Finally, evacuations and road closures occurred. The majority of this fire complex burned in Monterey's county warning area.

Wildfire in MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO WESTERN COLUSA COUNTY, CALIFORNIA
From 16-AUG-20 00:00:00 to 31-AUG-20 23:59:00 (PST-8)
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The August Complex was started by lightning on August 16 and 17, initially over the Mendocino National Forest. Since then, the fire has grown extensively and currently spans two National Weather Service county warning areas, Sacramento and Eureka. Counties that have been affected are Tehama, Glenn, Colusa, Lake, Trinity, Mendocino, and Humboldt counties. The fire is still on going and is 1,032, 648 acres, but is 93 percent contained as of October 29, 2020 when this data is being prepared. It has destroyed 54 structures and damaged 6 structures. 1 fire fighter fatality and an associated injury occurred via a vehicular accident while on the line in Eureka's forecast area.