Timber (Litter and Understory)

Timber (Grass and Understory)

Brush (2 feet)

Fuel moistures are historically low, ERCs and BI are in the 97-99%

Observed Fire Behavior or Significant Events for the Time Period Reported (describe fire behavior using accepted terminology. For non-fire incidents, describe significant events related to the materials or other causal agents):

Moderate

Running

Creeping

Backing

Narrative: Fire behavior overnight was moderated due to smoke inversion, warm temperatures, and poor RH recoveries.

Construct direct and indirect line to secure fire perimeter.

Unable to staff contingency lines due to all resources committed to Fire Front Following, providing structure defense in surrounding impacted communities.

Provide structure defense in communities at risk: Chester, Hwy 36 corridor, Hwy 89 Corridor, Paxton, Greenville, Jonesville, Crescent Mills, Taylorsville, Prattville, Canyon Dam, Butte Meadows, Bucks Lake, Meadows Valley, Rush Creek, Warner Valley, Pecks Valley, Williams Valley, Hunt Canyon, and Greater Almanor area.

Continue tactical patrol in the communities impacted by fire.

12 hours: Moderate conditions. Expect the fire activity to decrease through the morning hours. The valleys will see RH recovery up to 60% There may be potential for crews to make headway on building containment lines. Smoke shading from fires in the region will reduce fire intensity.

Fire has entered Lassen National Park and is expected to continue burning north through the park.

24 hours: Slightly cooler today. Expect a Moderate risk burn environment due to moderate temps, low RH and extremely receptive fuels. The atmosphere will be somewhat unstable with a Haines of 4. Forecasted winds will be SW17 MPH with 5% cloud cover. Fire behavior will consist of fuel driven surface fire, isolated torching and spotting. Moderate overnight recoveries may provide opportunity for line construction and/or firing operations. Local thresholds will be exceeded. Expect comparable fire behavior as the previous operational period. The fire will most likely spread to the North and Northwest due to sustained SW winds.

48 hours: Temperatures will be in the high 80's today and will heat up over the next few operational periods. 5% cloud cover forecasted during the burning period. Fire behavior has the potential to revert to very active with the diminishing smoke shading. Fire behavior would include wind driven surface fire, group torching, crown runs with alignment and spotting. Moderate overnight recoveries may provide opportunity for line construction and/or firing operations. Local thresholds will be exceeded. Expect an increase in fire activity with clear air.

72 hours: Similar profile as the previous operational period. Expect comparable fire behavior as the previous operational period. Forecasted hot and dry weather through the end of the week.

Anticipated after 72 hours: Similar profile as the previous operational period. Expect comparable fire behavior as the previous operational period. Forecasted hot and dry weather through the end of the week.

California Interagency Incident Management Team 4 (CIIMT 4) is in command of the East Zone.

CALFIRE IMT 3 will transition with CALFIRE IMT 1 today and take command of the fire tomorrow 8/8/2021 at 0700.

FMAG for Lassen County has been submitted.

State DPA: 60,945

Federal DPA: 377,366

NPS DPA: 8,411

EAST ZONE:

It was another smokey day across the fire. The smoke did begin to thin out somewhat in the afternoon hours, allowing the fire to become more active. Afternoon temperatures climbed into the upper 70s and 80s while relative humidity dropped into the 14-24% range. Light and variable winds in the morning shifted to a southwest and up-canyon direction the afternoon with gusts around 15 MPH.

For tonight, mostly clear, but smokey conditions are anticipated. Overnight relative humidity recovery will be poor to moderate. Southwest and up-canyon winds early will shift to a weak down-canyon direction overnight.

WEST ZONE:

Smoke stayed over the fire through early afternoon before some clearing allwed the fire to begin to ventilate. Temperatures from the mid 70s to mid 80s due to smoke shading with humidity values higher, ranging from 15-25%. Thick smoke forecast to settle over the fire tonight with light down-canyon winds. The tail end of a dry cold front passes over the region on Sunday afternoon, leading to increasing west winds that will help to mix the smoke layer out much layer with an expected increase in fire activity. West wind gusts from 2-30 MPH will be adverse to the eastern edges of the fire. Long range forecast remains hot and dry.