Sierra National Forest
U.S. Forest Service
1600 Tollhouse Road
Clovis, CA 93611
Fresno County: SOUTH ZONE
Active burning was once again observed on the South Zone of the Creek Fire overnight with some timber torching and short-range spotting. Heavier fuels (timber) and dense fuel beds will smolder for an extended period of time.
There was moderate humidity recovery overnight and downslope winds were felt within the fire. Smoke that has settled in low lying areas will struggle to mix out of the area due to light winds today. Beginning today, a weather system bringing higher and hot temperatures arrives in the region with lower humidity. This will last into next week.
Areas where fire behavior will be most active will be south of Mount Tom towards the Portal Forebay and east towards the Dinkey Lakes Wilderness. Operational priorities for fire resources on the South Zone of the Creek Fire will be ensuring mop-up near the existing fire perimeter helps hold containment. Personnel will also work to improve and build remaining containment lines, and provide tactical patrol including the extinguishment of hot spots and preparing any threatened structures for defense.
Madera County: NORTH ZONE
Weather conditions will change with a high-pressure system moving across the area starting tonight. This will shift winds to the northeast which will produce a light to moderate down-sloping wind. Temperatures are also expected to climb starting Sunday and into next week and return day-time high temperatures to the 90’s. Expect smoke conditions to increase along the 41 Road Corridor.
Yesterday Air Operations successfully used the aerial ignition device dispensed by helicopter in the Whiskey Falls area. This devise is called a PSD (plastic sphere dispenser), it is a compact and dependable aerial ignition devise used in areas that are too dangerous for firefighters. The hazards in the area are the dead trees that are falling in that area. The tactical back-burning in the areas of Central Camp and Whiskey Falls was finished last night and crews will remain in the area to strengthen and work toward containment.
The Marines are supporting the firefighting efforts in the Cascadel and Central Camp areas.
With the change in anticipated wind direction to a northeast flow due to a high-pressure system moving into the area, all helicopters are now based at the Mammoth Lakes Airport. This relocation is not a result of any increased threat of fire progression.
At its closest distance, the fire was measured to be about 10-12 miles west of Mammoth Lakes. The visual inspection verified that the natural barriers and the previous Lions fire (2017) burn scar do appear to be limiting fire spread in the north-eastern flank. Conditions continue to be monitored very closely by emergency officials. Additional information is available via the Sierra National Forest Facebook page, or the below link:
Once again, with the increased use of air resources, please respect the Temporary Flight Restriction. The use of drones is not permitted over the fire area. A drone incursion will result in the grounding of all firefighting aircraft. Remember, "If you fly - We can't."
|Current as of|
|Date of Origin||Friday September 04th, 2020 approx. 06:00 PM|
|Location||Big Creek, Huntington Lake, Shaver Lake, Mammoth Pool, San Joaquin River Canyon|
|Incident Commander||Nick Truax CAL FIRE IMT1, Martin Adell Great Basin IMT1, Madera County SO, Fresno County SO|
|Coordinates||37.201 latitude, -119.272 longitude|
|Percent of Perimeter Contained||39%|
|Estimated Containment Date||Thursday October 15th, 2020 approx. 12:00 AM|
The fuel loading in the timber is estimated at 2,000 tons per acre. The brush in the area is at critical fuels moisture levels, 60% in the ceanothus and manzanita.
North Zone: Fire activity was moderated as the relative humidity rose during the night. Exposed ridges and heavy fuels were active due to the low fuel moistures. Firing operations along the west edge of the fire also contributed to fire activity.
South Zone: The fire burned actively through the night in the northern portion, aided by the more easterly winds. The complex terrain influences the general wind and moves the fire in multiple directions. The fire continues to have group torching and short range spotting. The remainder of the fire has heavy material smoldering and making short runs in the interior islands.
Construct, strengthen and improve control lines.
Mop up around structures in the burn.
Implement progressive hose-lays as needed.
Prepare for firing operations.
Fall hazard trees and trees that threaten control lines.
Mop up in from control lines.
Locate and construct secondary control lines.
|Projected Incident Activity|
North Zone: Fire activity will be moderated by higher relative humidity during the day. Expect most fire activity to be in Timber Knob, Jackass Lakes and north of Madera Creek.
South Zone: The north end of the fire will continue to burn to the south of Mount Tom. The fire progression will slow as fuels become reduced in the high higher elevation rock. The fire will continue to progress towards Florence Lake and the Dinkey Lakes Wilderness. The rest of the fire will continue to smolder in the heavy fuels.
North Zone: Winds across the incident will follow a diurnal slope driven pattern with downslope winds transporting smoke back across lower elevations overnight as drainage flows strengthen. Dry conditions will continue with poor humidity recoveries in thermal belts and ridgetop locations. A strong high pressure region will build by the end of the weekend into much of next week bringing an extended period of above average temperatures to the region.
South Zone: Moderate humidity recoveries overnight with clear skies and light downslope to downcanyon winds. With smoke settling back into the lower drainages and canyons, it may be dense for some locations in early morning. Despite sunshine Saturday, smoke will be very difficult to mix out because of a fairly stable atmosphere. Temperatures will nudge up slightly, the first step of several into a very warm and dry period ahead.