News Release
NPS Photo / Peter Bowman
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Contact: Katy Hooper
Fire activity increased on the Sourdough Fire due to warm temperatures, windy conditions, and low humidity throughout the area. The Sourdough Fire is estimated at 15 acres.The fire was active on the western and southern flanks overnight and throughout Sunday in heavy dead and downed fuels. Crews continue to utilize four helicopters and six Fire Boss scooper planes for aerially delivered water to support firefighters on the ground.
Aerial operations were suspended for approximately 45 minutes due to unauthorized drone (unmanned aircraft systems) flights near the fire, which caused a significant safety risk and increased fire activity during the temporary halt. Overall, aerial operations have successfully kept the fire in check when able to fly. Unauthorized drone flights pose serious risks to firefighter and public safety and the effectiveness of wildfire suppression operations.
A Type-1 hotshot crew has been ordered and will begin to engage on the fire for Monday’s operational period. Aerially delivered water will continue to support firefighters on the ground.
Dry, breezy, and unstable air conditions are expected Tuesday through the remainder of the week before the possibility of moisture to the area.
Trail and camp closures remain in effect due to fire activity. Closure information can be found at https://www.nps.gov/noca/planyourvisit/fire-closures.htm. Access across Diablo Dam is limited to Skagit Tours, Ross Lake Resort, and North Cascades Environmental Learning Center reservation holders only.
Visitors should be aware of fire restrictions in all areas of the park complex. Campfires or the ignition of wood, briquettes, or any fuel in fire pits, fire pans, and barbeque grills, are banned in in all portions of North Cascades National Park Service Complex – North Cascades National Park, Ross Lake National Recreation Area, and Lake Chelan National Recreation Area. This includes all National Park Service lands and campgrounds along State Route 20 as well as Hozomeen and the entire Stehekin Valley. If you see smoke or flames dial 911 or report to a park visitor or information center. Contact the Wilderness Information Center for trail information at noca_wilderness@nps.gov.
Last updated: July 30, 2023