At approximately 12:15 p.m. (Aug. 17), rain began to fall over the Museum Fire Burn Scar. By the time the large storm system moved out of the area, the entire burn area was saturated, resulting in the largest rainfall event to date.
The gauges located throughout the burn scar recorded hourly rainfall as follows: 3.07 inches in south gauge, 2.4 inches in western gauge, 1.5 inches in the eastern gauge, .75 inches at northern gauge. In addition, the rainfall was intense with over 1.14 inches recorded in at the south and west gauges in 15 minutes and 1.06 inches recorded at the east gauge. Not only was significant rainfall experienced on the burn scar itself, but also in the Sunnyside neighborhood. In an hour, 1.22 inches fell at Linda Vista and 1.5 inches was recorded downstream in neighborhoods. The rainfall recorded at the south gauge equates to a 200- to 500-year rainfall event.