The LNU Lightning Complex fires were a large complex of wildfires that burned during the 2020 California wildfire season across much of the Wine Country area of Northern California – Lake, Napa, Sonoma, Solano, and Yolo Counties, from August 17 to October 2, 2020. The complex was composed of numerous lightning-sparked fires, most of which were small. While they ignited separately from each other, the Hennessey Fire eventually grew to merge with the Gamble, Green, Markley, Spanish, and Morgan Fires, scorching by itself, for a total burn area of in the complex. The fire, which burned in the hills surrounding several large cities, such as Fairfield, Napa, and Vacaville, destroyed 1,491 structures and damaged a further 232. In all, six people were killed and another five injured. The LNU Lighting Complex is the sixth-largest wildfire in the recorded history of California. Name The name of the complex fire refers to the name of the local unit of the California Department of Forestry and Fire Protection (Cal Fire), the Sonoma–Lake–Napa Unit (LNU). Timeline In the early morning hours of Sunday, August 16 through Monday, August 17, a series of highly unusual thunderstorms rolled through most of northern California, which came from the moisture of the diminishing Tropical Storm Fausto. With these thunderstorms came a reported 10,849 lightning strikes that – within a 72-hour period – sparked 376 known fires across much of the state. Monday, August 17 Early on Monday, August 17, at around 6:40 am PDT a spot fire was reported burning in the 60 block of Hennessey Ridge Road near Lake Hennessey which was initially dubbed the 14-3 Fire but then later named the Hennessey Fire. The incident was reported alongside several other fires nearby. These included the Gamble Fire, which began burning in an area off Berryessa Knoxville Road north of Lake Berryessa and west of State Route 16; the Spanish Fire, which was burning near Spanish Flat; the 15-10 Fire, burning near Putah Bridge; and the Markley Fire, near Monticello Dam. Resources to fight these fires were scarce due to the high number of other fires burning throughout California at the time. Because of this, the fires were not suppressed during their most critical early phases, and by the evening of that day, the multiple conflagrations sizes were all ranging between 1,000 and 8,000 acres with 0% containment for each fire. Tuesday, August 18 By the morning