The Woodward Fire was burning in a portion of Point Reyes National Seashore that had not burned recently/NPS

High humidity and the marine layer was slowing the Woodward Fire at Point Reyes National Seashore, which has been closed to the public due to efforts to contain the blaze that was sparked by lightning on August 18.

While the marine layer drifting in from the Pacific Ocean helped slow the blaze, it also was preventing air resources from attacking the fire.

Through Saturday the fire had burned across nearly 3,100 acres in the seashore, and crews had managed to scratch lines around 15 percent of the fire, which was burning through heavy coastal shrub, 4-8 feet tall, and mixed conifer coastal forest. 

Fire bosses said the blaze was spreading north towards the California communities of Olema, Silver Hills, and Point Reyes Station.

"If the potential fire growth is realized, it will negatively affect private and public infrastructure, endangered species habitat, watersheds which provide salmon habitat, high value agricultural operations, communication sites of local and national importance, tourism opportunities, and associated economic impacts and job losses," Sunday's incident report noted.