Thielsen Fire Update, September 17, 2020

Sept. 16, 2020

Fire Size and Containment: 8,645 acres and 1% contained.

Location and Cause: Diamond Lake Ranger District, Umpqua National Forest, about 5 miles north of Crater Lake National Park and within 1 mile of Diamond Lake Resort. The fire was discovered on Sept. 8, 2020. The cause is unknown.

Evacuations: Level 3 “GO” evacuations are in place for the Diamond Lake, Lemolo Lake and Toketee Ranger Station areas. Visit the Douglas County Sheriff’s website for the most current information.

Fire Activity and Operations: Today, crews will focus on direct attack where possible, as well as protecting critical infrastructure and securing and holding the fire’s southern edge near the northern boundary of Diamond Lake. Air operations drop retardant for the protection of the Garwood Butte Lookout as weather conditions allow. Firefighters will use heavy equipment to create lines around the fire. They will also conduct firing operations when fire behavior and weather permits. 

Closures and Flight Restrictions

Road Closures: Highway 138E is closed. For the latest road conditions, visit www.tripcheck.com.

Forest Closures: Temporary emergency closure orders are in effect for all National Forest System lands, roads, and trails within the Cottage Grove Ranger District: ORDER NO. 06-15-01-20-423, Tiller Ranger District ORDER NO. 06-15-02-20-422, Diamond Lake Ranger District ORDER NO. 06-15-03-20-420 and North Umpqua Ranger District ORDER NO. 06-15-06-20-421.

Flight restrictions: A new temporary flight restriction was issued this morning from the surface up to and including 10,000 feet to provide a safe environment for fire-fighting aviation operations.

Air Quality: An air quality advisory remains in place through the end of today. Areas around the Thielsen Fire should see clearing by tomorrow morning. For more information visit https://oregonsmoke.blogspot.com/

Weather and Fire Behavior: Overcast with smoke and a chance of isolated thunderstorms throughout the day. Temperatures in the low 60s will help to reduce active fire behavior. Overnight recoveries should generally improve through the week. The continued high temperatures and low humidity have the potential to increase fire behavior over the next several days.

Additional Information: Please visit the Thielsen Fire InciWeb page for the most recent information.

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