Six Rivers Lightning Complex and the McKinney/Yeti Fires

Six Rivers Lightning Complex and the McKinney/Yeti Fires – August 8, 2022

Maps and Captions: Ryan Cowper Stephens

Table of Contents:

Zeke’s Video Briefing on YouTube
Six Rivers Lightning Complex Fires
Six Rivers Lightning Complex Weather Forecast
McKinney and Yeti Fire Weather Forecast
McKinney Fire
Yeti Fire

—Six Rivers National Forest Lightning Complex Fires—

*Lookout fire maps are high resolution. Click maps to open them in a separate window, where you can zoom and scroll. This can be helpful for viewing our maps on cell phones*

LOOKOUT MAP KEY:
Areas shaded RED are most active
Areas shaded YELLOW are cooling down
Between the RED & WHITE perimeter lines is approximately 24 hours growth as of August 7 at 10:30pm
Areas shaded BLUE and GREEN are fires from previous years

Overview of the Six Rivers Lightning Complex. Past fires in blue and green will influence how fire spreads across the landscape, should they grow that large.

Campbell fire. Looking north over Salyer, the Trinity River and the Highway 299 corridor. The Campbell Fire continued to grow to the northeast above neighborhoods above Fountain Ranch Road and Galaxy Drive in Salyer.

Looking east over the Trinity River at the Campbell Fire. Fire continued to back down the hill and appears to have been held up at Seeley McIntosh Road at the time of mapping.

Looking west at the Bremer Fire. Fire started at the top of the ridge and is backing down above Patterson Road.

Looking southwest over the Waterman Ridge. Fire burned up slope in its initial run and appears to be mainly flanking to the east and west. Fire looks to be holding along Coon Creek.

Looking east over Willow Creek at the Cedar, Bremer, and Campbell Fires in Branch I. Last year’s Knob Fire is seen in blue on the south side of the Trinity River and Highway 299.

Looking east over Friday Ridge at the Oak, Ammon and Charlie Fires in Branch II. Oak fire had backed down into Madden Creek, but had not crossed it at time of mapping. Ammon Fire backed into Madden Creek and ran up the south end of Friday Ridge.

SRF Lightning Complex Spot Weather Forecast:

Branch I Weather:

Spot Forecast for Six Rivers Fire North...USFS
National Weather Service Eureka CA
149 PM PDT Sun Aug 7 2022

If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (707) 443-6484, if you have questions
or concerns with this forecast.

.DISCUSSION...Seasonable weather will continue for the next
several days. A deep marine layer will continue to bring marine
air far inland, allowing for generally moist conditions. 
Overnight recoveries are very good above 90 percent at low 
elevations with daytime RH bottoming out around 30 percent. Smoke 
will help keep temperatures a bit cooler than normal in the low 
80s. Winds will be gentle and diurnally controlled. Strongest 
winds are expected along wind channeled valleys with gusts above 
15 mph possible monday afternoon. Marine influence alongside weak 
transport winds should keep a robust inversion in place overnight 
through Monday morning. The inversion is expected to only 
gradually lift late in the afternoon after 2 pm without fully 
breaking. Tuesday is expected to be slightly warmer and drier with
the inversion likely to lift a bit earlier. 

.TONIGHT...

Sky/weather.........Clear. Smoke in the evening, then areas of 
                    smoke after midnight. 
CWR.................0 percent. 
LAL.................1. 
Min temperature.....Around 53 to 57. 
Max humidity........At low elevation 90 to 95 percent.
At high elevation 70 to 75 percent. 
Wind (20 ft)........North winds 5 to 10 mph in the 
                    evening...becoming variable 2 to 4 mph. 
Mixing height.......1500-2000 ft AGL decreasing to 100-200 ft AGL 
                    late in the evening. 
Transport winds.....West around 4 mph. 

.MONDAY...

Sky/weather.........Sunny. Patchy smoke in the morning, then smoke 
                    in the afternoon. 
CWR.................0 percent. 
LAL.................1. 
Max temperature.....At low elevation 81 to 85.
At high elevation 70 to 74.  
Min humidity........35 to 40 percent. 
Wind (20 ft)........North winds 5 to 10 mph, afternoon gusts to 15 mph. 
Mixing height.......100-300 ft AGL increasing to 2500-3500 ft AGL 
                    in the afternoon. 
Transport winds.....Southwest around 3 mph. 

.MONDAY NIGHT...

Sky/weather.........Clear. Smoke in the evening, then areas of 
                    smoke after midnight. 
CWR.................0 percent. 
LAL.................1. 
Min temperature.....Around 52 to 56. 
Max humidity........At low elevation 85 to 90 percent.
At high elevation 65 to 70 percent.  
Wind (20 ft)........North winds 5 to 10 mph in the 
                    evening...becoming variable 2 to 4 mph. 
Mixing height.......1700-2300 ft AGL decreasing to 100 ft AGL late 
                    in the evening. 
Transport winds.....Southeast around 3 mph. 

.TUESDAY...

Sky/weather.........Sunny. Areas of smoke in the morning, then 
                    patchy smoke in the afternoon. 
CWR.................0 percent. 
LAL.................1. 
Max temperature.....At low elevation 85 to 90.
At high elevation 70 to 74.   
Min humidity........35 to 40 percent. 
Wind (20 ft)........Variable 2 to 4 mph...becoming north 5 to 8 mph 
                    in the afternoon. 
Mixing height.......100-400 ft AGL increasing to 4400 
                    early in the afternoon. 
Transport winds.....Southeast around 4 mph

BRANCH II WEATHER:

Spot Forecast for Six Rivers Fire South...USFS
National Weather Service Eureka CA
146 PM PDT Sun Aug 7 2022

If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (707) 443-6484, if you have questions
or concerns with this forecast.


.DISCUSSION...Seasonable weather will continue for the next
several days. A deep marine layer will continue to bring marine
air far inland, allowing for generally moist conditions. 
Overnight recoveries are very good above 90 percent at low 
elevations with daytime RH bottoming out around 30 percent. Smoke 
will help keep temperatures a bit cooler than normal in the low 
80s. Winds will be gentle and diurnally controlled. Strongest 
winds are expected along wind channeled valleys with gusts above 
15 mph possible monday afternoon. Marine influence alongside weak 
transport winds should keep a robust inversion in place overnight 
through Monday morning. 

The inversion is expected to only gradually lift late in the 
afternoon after 12 pm without fully breaking. Better exposure in 
the south will likely lead to the inversion lifting a few hours 
earlier than the north. Tuesday is expected to be slightly warmer 
and drier with the inversion likely to lift a bit earlier.


.TONIGHT...

Sky/weather.........Clear. Smoke in the evening, then areas of 
                    smoke after midnight. 
CWR.................0 percent. 
LAL.................1. 
Min temperature.....Around 56 to 60. 
Max humidity........At low elevation 87 to 93 percent.
At high elevation 60 to 65 percent. 
Wind (20 ft)........North winds 5 to 10 mph in the 
                    evening...becoming variable 2 to 4 mph. 
Mixing height.......1500-2000 ft AGL decreasing to 100-200 ft AGL 
                    late in the evening. 
Transport winds.....West around 4 mph. 

.MONDAY...

Sky/weather.........Sunny. Patchy smoke in the morning, then smoke 
                    in the afternoon. 
CWR.................0 percent. 
LAL.................1. 
Max temperature.....At low elevation 76 to 80.
At high elevation 68 to 72.  
Min humidity........35 to 40 percent. 
Wind (20 ft)........North winds 5 to 10 mph, afternoon gusts to 15 mph. 
Mixing height.......100-300 ft AGL increasing to 2500-3500 ft AGL 
                    in the afternoon. 
Transport winds.....Southwest around 3 mph. 

.MONDAY NIGHT...

Sky/weather.........Clear. Smoke in the evening, then areas of 
                    smoke after midnight. 
CWR.................0 percent. 
LAL.................1. 
Min temperature.....Around 56 to 59. 
Max humidity........At low elevation 80 to 85 percent.
At high elevation 60 to 65 percent.  
Wind (20 ft)........North winds 5 to 10 mph in the 
                    evening...becoming variable 2 to 4 mph. 
Mixing height.......1700-2300 ft AGL decreasing to 100 ft AGL late 
                    in the evening. 
Transport winds.....Southeast around 3 mph. 

.TUESDAY...

Sky/weather.........Sunny. Areas of smoke in the morning, then 
                    patchy smoke in the afternoon. 
CWR.................0 percent. 
LAL.................1. 
Max temperature.....At low elevation 83 to 87.
At high elevation 70 to 74.   
Min humidity........33 to 38 percent. 
Wind (20 ft)........Variable 2 to 4 mph...becoming north 5 to 8 mph 
                    in the afternoon. 
Mixing height.......100-400 ft AGL increasing to 4400 
                    early in the afternoon. 
Transport winds.....Southeast around 4 mph.

OPS MAPS:

BRANCH I:

BRANCH II:

—McKinney and Yeti Fires—

Fire Weather Forecast:

—McKinney Fire—

To better understand what’s happening around the fire and in our maps, watch the USFS Friday August 7 McKinney Fire operational update from KNF Facebook page:

McKinney Infrared Lookout Maps:

*Lookout fire maps are high resolution. Click maps to open them in a separate window, where you can zoom and scroll. This can be helpful for viewing our maps on cell phones*

LOOKOUT MAP KEY:

Areas shaded RED are where the fire is most active. Areas shaded YELLOW are where the fire is cooling down.
Between the RED & WHITE perimeter lines is approximately 24 hours growth as of 10:30pm August 7.
Areas shaded in BLUE are wildfires from previous years.

McKinney Fire Behavior Forecast:

—Yeti Fire (previously China2)—

To better understand what’s happening around the fire, watch today’s KNF morning operations briefing video from Facebook:

Yeti Infrared Lookout Maps:

*Lookout fire maps are high resolution. Click the maps to open them in a separate window, where you can zoom and scroll. This can be helpful for viewing our maps on cell phones*

LOOKOUT MAP KEY:
Areas shaded Red show where the fire is most active.
Areas shaded YELLOW are where the fire is cooling down.
Between the RED & WHITE perimeter lines is approximately 25 hours growth.
Areas shaded in BLUE are wildfires from previous years.

***END