Timber (Litter and Understory)

Timber (Grass and Understory)

Brush (2 feet)

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

Active

Uphill Runs

Single Tree Torching

Flanking

Fire activity continued into the evening hours following local winds and topography.

Construct direct and indirect line to secure fire perimeter. Construct contingency lines

in both zones.

Provide structure defense in communities at risk: Chester, Hwy 36 corridor, Paxton, Greenville, Jonesville,

Crescent Mills, Taylorsville, Canyondam, Butte Meadows, Bucks Lake, Meadows Valley, Rush Creek and Greater Almanor area. Continue tactical patrol in the communities impacted by fire.

12 hours: Fire continues to move towards controls lines burning unburned interior islands and ridges. Steep terrain, heavy fuel loading, and wind in alignment with canyons is making control difficult. On West Zone fire is actively burning in division L after spotting across the control line. Its currently threatening structures along the Hwy 36, 89 corridors, and in the greater Lake Almanor Area. On the East Zone expected area to grow is divisions M, N O, and P. Red flag warning in effect from 1Pm 8/4/2021 to 8Pm 8/5/2021.

California Interagency Incident management Team 4 (CIIMT 4) is shadowing CIIMT 2 today and will transition today

8/3/2021 at 1900.

State DPA: 6551

Federal DPA:247915

EAST ZONE:

Observed: Hot conditions persisted this afternoon across much of the Dixie East Zone and Evans Fires with temperatures in the 80s at elevations generally above 4500 feet and temperatures in the 90sbelow 4500 feet. Winds were beginning to respond with southerly and westerly winds becoming more prevalent, with a report of winds already gusting to near 20 mph near Round Valley from Division Oscar crew members. Afternoon humidity continued to plummet into the teens across many locations this afternoon thanks to deeper vertical mixing in the atmosphere.

Forecast: Through the afternoon, afternoon humidity values in the low to mid-teens should be anticipated with a handful of sites likely falling down into the single digits. Winds will continue to increase, mainly out of the south and west. Sustained wind speeds will generally reside between 9 and 17 mph with wind gusts likely falling within the 25-28 mph range. It will be hot with temperatures likely in the 90s to near 103 degrees. The combination of heat, winds, and low humidity will foster very active fire behavior including spotting and tall smoke columns. Patchy dense smoke will linger in deep canyons/valleys. A Local Red Flag Warning is in effect from 1400 to1900 hours for the Dixie East Zone and Evans Fire to address a critical fire weather threat. A Red Flag Warning is in effect for the entire area on Wednesday.

Tonight, winds in the canyons/valleys will become down-canyon/down-valley by 2200 hours. After midnight, these winds are expected to subside. At elevations above 4000 to 4500 feet above ground level, winds may remain elevated with speeds between 5 and 10 mph and generally out of the south. Overnight humidity recovery will remain poor with values likely struggling to rebound into the 20 to 30 percent range for most locations above 4500 feet. Valleys, drainages

and canyons may still see overnight recovery greater than 40 percent.

WEST ZONE:

Breezy southwest winds Tuesday afternoon will ease overnight but with continued poor humidity recovery and mild overnight lows. Red Flag Warning goes into effect 1 pm Wednesday and lasts through 8

pm Thursday as a dry cold front passes through the region. Southwest wind gusts from 30-40 mph Wednesday afternoon and evening along

with unstable air aloft. Behind the front winds will switch to northwest by Thursday

afternoon.

Observed Weather Conditions:

Mostly sunny with smoke.

Wind Speed / Max. Gust Southwest 8-12 mph gusts 18-24 mph

Temp 88 to 96.

Direction Southwest

RH 9-18%

Forecasted Weather

for Weds Operational Period

Wind Speed / Max. Gust Sustained 15 mph gusts 30-40 mph Weds afternoon/evening.

Temp 85-95

Direction Southwest

RH 8-18%