Around 9 AM, dry, gale-force winds between 20 and 40 miles per hour helped to fan the flames of two uncontrolled blazes, the Gamble Fire and the Hennessey Fire. This caused the Hennessey Fire to explode to 2,400 acres (9.7 km2) by 5 PM August 17, prompting several evacuations.[40] By the night of August 18, the LNU complex had burned a total of 32,025 acres (129.60 km2) so far with no containment.