The origin of this fire is officially under investigation. The park service has been letting the lightning-caused Meadow Fire burn for awhile, and it’s likely that embers from the Meadow Fire were picked up and blown into an area with heavy fuels, then were fanned by the wind. But it’s also possible that this is a new fire with an unknown cause.
In either case, the winds caused this fire to blow up suddenly Sunday at about 12:30 p.m., closing all the trails in and around Little Yosemite Valley, and forcing the park service to evacuate 50 hikers from the top of Half Dome by helicopter! A big news story, as you can imagine. As of yesterday, the fire was estimated at 2,600 acres. They’re using helicopters, air tankers, and ground crews to contain it. All the park roads and facilities are open, and fortunately no one has been injured by the fire.
There were quite a few photographers at Washburn Point Sunday night, and no wonder – the fire was a spectacular sight. Moonlit clouds kept streaming in from the south, and several times we saw lightning in the distance. Two separate rain showers just missed us, but passed directly over the fire. The first shower seemed to noticeably dim the flames. After the second, heavier shower, a large bank of fog rose up, obscuring the fire and Half Dome. The fog may actually have been steam, created by water hitting the fire. These brief showers didn’t put the fire out, but they probably slowed it down.