THe LNU Lighting Complex was a complex of 7 different fires in the Sonoma, Lake, and Napa counties, with 4 major ones being the Hennessey, Gamble, 15-10, and 13-4 Fires. It first sparked around 6:37 AM on August 17, when a lightning storm passed over the Lake Hennessey area. Another lightning strike occurred at 6:39, near the Aonair winery, starting a fire that was 5 acres large.[39] About 60 fires had sparked in the region during that time period, however, while some blazes were quickly contained at 1 or 2 acres, others rapidly went out of control.