2022 Fire/Smoke Impact Reports

Questions and reports related to Sierra Nevada current and forecast conditions, as well as general precautions and safety information. Trail conditions, fire/smoke reports, mosquito reports, weather and snow conditions, stream crossing information, and more.
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maverick
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Washburn Fire Update 7/9

Post by maverick »

YNP:
Summary: The Washburn Fire was reported in the afternoon of July 7th, near the Washburn Trail in the Mariposa Grove area of Yosemite National Park. A full initial attack response was dispatched including Yosemite National Park Fire resources and state and local cooperators. California Interagency Incident Management Team 13 has assumed command of the fire, and will manage the fire as a full suppression fire. Firefighting resources will continue to arrive over the coming days.

The Mariposa Grove was evacuated and remains temporarily closed. Located in the southern portion of Yosemite, the Mariposa Grove of Giant Sequoias is the largest sequoia grove in Yosemite and is home to over 500 mature giant sequoias. The national park idea is rooted in the Mariposa Grove. In 1864 President Lincoln signed legislation protecting the Mariposa Grove and Yosemite Valley for "public use, resort, and recreation." For the first time in our nation's history, the federal government set aside scenic natural areas to be protected for the benefit of future generations. Later added to Yosemite National Park in 1906, the Mariposa Grove is a popular destination within the park. For more information, please visit the Yosemite National Park's Mariposa Grove Webpage

Evacuations & Closures: Wawona, Wawona Road south of Yosemite West, and the Mariposa Grove are closed until further notice. All other areas of Yosemite National Park are open. Use Highways 140 or 120 to enter Yosemite. Expect smoky conditions within the park. If you currently are within this area, please leave the area immediately. Utilize Wawona Road (Hwy 41) northbound toward Yosemite Valley. Southbound traffic is closed at the Wawona Golf Course. A map of the evacuation area and current evacuation levels is available at arcg.is/0Hmuq4 An evacuation shelter is set up at the New Life Church located at 5089 Cole Road in Mariposa, CA.

Weather: A slow warming trend with clear skies will continue for several days. Highs will range from the mid 80's to near 90 degrees under clear skies. Full Forecast is available at 7-Day Forecast 37.5N 119.62W (weather.gov)

Current Conditions: Current road, campground, and other information within Yosemite National Park (U.S. National Park Service) (nps.gov)

Smoke: An interactive smoke map at fire.airnow.gov/ allows you to zoom into your area to see the latest smoke conditions.

Aviation / Drone Restrictions: The Federal Aviation Administration (FAA) has issued Temporary Flight Restriction (TFR) and any private aircraft or drone that violates the TFR could face serious criminal charges. For more information on drones the public can visit theFAA’s website at www.KnowBeforeYouFly.org. “If you fly, we can’t!”

Fire Information: Fire Information Office Hours: 8:00 AM – 8:00 PM | Phone: 209-620-6431 | Email: 2022.washburn@firenet.gov | Online: inciweb.nwcg.gov/incident/8209/ | Yosemite National Park Website
http://inciweb.nwcg.gov/photos/CAYNP/20 ... 3-CDT.jpeg
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Washburn Fire In Yosemite NP 7/11

Post by maverick »

YNP:

Basic Information

Current as of: 7/11/2022, 6:29:26 AM

Incident Type: Wildfire

Cause: Under Investigation

Location: Southern portion of Yosemite National Park;

Incident Commander: Josh Boehm, California Interagency Incident Management Team 13.

Incident Description: Managed for Full Suppression.

Coordinates: 37.499 latitude, -119.614 longitude


Current Situation

Total Personnel: 545

Size: 2,340 Acres

Fuels Involved: Timber and Brush - Mostly high load conifer litter (TL5) with heavy dead and down component as well as substantial standing dead.

Significant Events:
Moderate Fire Behavior Observed, including Long-range Spotting, Group Torching and Backing.


Outlook

Planned Actions: Continue direct handline construction where possible and prepare for indirect line when needed. Utilize offensive firing operations along primary control lines when appropriate. Defend Wawona Point and the Community of Wawona. Protect Miraposa Grove.

Projected Incident Activity:

12 hours: Expect the fire to keep growing moderately. The fire has remained active overnight, and that will be expected tonight.

24 hours: With the forecast warming and drying, fire activity will increase during the day tomorrow.

48 hours: Forecast weather indicates heating trend through the week. Fire activity will remain actively spreading.

72 hours:
Forecast weather indicates heating trend through the week. Fire activity will remain actively spreading.

Anticipated after 72 hours:
Forecast weather indicates heating trend through the week. Fire activity will remain actively spreading. Once the fire reaches some of the recent fire scars, spread may slow, but fire will continue to burn into the fire scar with reduced intensity and increased dead and down fuel loading.


Current Weather

Weather Concerns:

Synopsis: A warming trend will take place over the fire today and Monday as high pressure strengthens over the area. Hot and dry conditions will persist through at least the end of the week. Winds will be generally light and terrain-driven. Smoke from the fire will continue to impact Yosemite National Park for the next few days due to southerly transport winds. (from spot forecast)

Observed: From 7/10/2022, Wawona Remote Weather Station, max temperatures reached mid-high 80s, min humidity dropped to 28-32%. Winds were light and variable.

Forecasted: .MONDAY... Sky/weather.........Mostly sunny. Areas of smoke through the day. Max temperature.....83-85. Min humidity........18-23 percent. Eye level winds.....Upslope 2-4 mph. Surrounding ridge...Southeast 5-10 mph in the morning shifting to southwest by 1100 PDT. Mixing height.......Rising to around 7000 ft AGL. Transport winds.....South 7 mph.
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I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

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Washburn Fire In Yosemite NP 7/12

Post by maverick »

Inciweb:

Current Situation


Total Personnel: 545

Size: 3,221 Acres

Percent of Perimeter Contained: 22%

Fuels Involved:
Heavy accumulations of available dead surface fuels with ample snags and concentrations in an old-growth forest condition. Fuels are primarily large timber with an understory of young conifer and shrubs. Very deep duff and accumulation of timber litter (branchwood and needles) dominate the forest floor.
Recent large fire scars in the area include woody materials and recent shrub growth

Significant Events
Moderate Fire Behavior Observed, including Long-range Spotting, Group Torching and Backing.
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I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

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Washburn Fire In Yosemite NP 7/14

Post by maverick »

Inciweb:

Basic Information


Current as of: 7/14/2022, 6:17:46 AM

Incident Type: Wildfire

Cause: Under Investigation

Location: Southern portion of Yosemite National Park;

Incident Commander: Josh Boehm, California Interagency Incident Management Team 13.

Incident Description: Full Suppression.

Coordinates:37.499 latitude, -119.614 longitude

Current Situation

Total Personnel: 1,045

Size: 4,375 Acres

Percent of Perimeter Contained: 23%

Fuels Involved:
Very heavy accumulations of available dead surface fuels with ample snags, downed timber, and concentrations in an old-growth forest condition. Representative fuels include large timber with an understory of young conifer and shrubs. Very deep duff and accumulation of timber litter (branchwood and needles) dominate the forest floor. Recent large fire scars in the area include woody fuels and recent shrub growth. Live fuels (shrubs/brush) are seasonally moist and are providing limited intensity and spread.

Significant Events:

A persistent weather pattern for the next several days will support active-to-very active fire behavior in heavy dead and down fuels. Expect afternoon episodes of group torching, short crown runs, and spotting primarily on the south side of the S. Fk. Merced River and upstream toward Iron Cr.. Continued warming and drying over the next several days will bring additional fire growth and smoke production where control lines have yet to be constructed.

Outlook

Planned Actions:
Continue direct handline construction where possible and prepare for indirect line when needed. Utilize offensive firing operations along primary control lines when appropriate. Defend Wawona Point and the Community of Wawona. Protect Miraposa Grove. Establish contingency lines through Long Valley to Grizzly Creek. Protect remote structures on National Park and Sierra NF. Evacuate threatened cattle allotments.

Projected Incident Activity:

12 hours: Warm and dry conditions are producing active-to-very active fire behavior during the day, and extending into the night due to poor relative humidity. Significant activity was observed on the east flank of the fire south of the S. Fk. Merced River toward Iron Creek including group torching and short crown runs on steep slopes. Light winds are producing sustained backing on slopes, flanking, and torching with spotting. Some downslope and down drainage wind flow will provide smoke in the valleys especially during the night under a strong inversion.

24 hours: Warming and drying will continue to provide an increase in fire behavior throughout the period, with the burn period extending into the nighttime hours due to poor relative humidity recovery. Light winds will provide sustained backing on slopes with flanking, torching, and spotting. Continued fire spread may be expected on the east flank of the fire in the South Fork Merced River drainage toward Iron Creek. Potential for spotting north of the South Fork Merced River as the fire backs to the bottom of the slope.

48 hours: Warm and dry conditions combined with poor-fair nighttime relative humidity will produce conditions for active to very active fire behavior on uncontained portions of the fire perimeter. Expect sustained backing, active flanking, more frequent torching with spotting, and short head fire runs likely.

72 hours: Increased warming and drying that will maintain active to very active fire behavior potential. Likely increase in fire behavior to include group torching, short torching/crown runs on wind aligned slopes, and spotting to .5 miles

Current Weather

Weather Concerns:
Persistent weather pattern continues with warm temperatures and dry conditions. Overall winds will be light to moderate and mostly terrain driven, except higher elevations that experience gusts up to 20 mph.

Observed Weather Conditions July 13, 2022: Wind Speed / Max. Gust Sustained 4-8 mph gust 18 mph. Temp Highs 82-88 Direction Southwest RH 25-30%

Forecasted Weather for Next Operational Period ¿ July 14, 2022: Wind Speed / Max. Gust Sustained 3-7 mph gusts to 15 mph. Temp Highs 84-90 Direction Southwest RH 20-26%
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Washburn Fire Sierra NF Closures 7/15

Post by maverick »

Sierra NF:
As firefighters pursue the Washburn Fire using a coordinated full suppression strategy, the fire remains active on the Sierra National Forest during hot and dry conditions. To aid firefighters and protect public safety during the Washburn Fire, Forest Routes 5S43 White Chief Mountain Rd., 5S06 Mt. Raymond Rd., 5S22 Big Sandy Rd., 6S10 Sky Ranch Rd., 5S40Y Lost Lake Rd., 5240Z Lost Lake Rd., 5S04 Chiquito Lake Rd., 5S70A Red Top Rd. and 5S37 have been closed to the public. Please see the map attached.

On the evening of July 7, 2022, a wildfire ignited in Yosemite National Park on the Washburn Trail. By July 14, 2022, the Washburn Fire had grown to more than 4,416 acres and is currently at 23% containment, and is currently most active on the Sierra National Forest. The fire is moving east along the South Fork of Merced River in a remote river canyon making access very challenging. The fire is impacting wilderness, main forest roads and recreation areas. This calls for significant firefighting and Forest Service resources to help fight the Washburn Fire. For these reasons, these forest lands and roads near the southern boundary of Yosemite National Park need to be closed for the safety of the public and firefighters.

The lands affected by this expanded closure are now less than 3% of the 1.3 million acre Sierra National Forest. Scoping regarding this temporary closure involved discussions with multiple local, state, and federal agency cooperators.

This Forest Order 05-15-00-22-15 will be effective from July 15, 2022, through August 1, 2022. USFS law enforcement will be on patrol, and thank you in advance to all members of the public for avoiding the closure area so that all incident personnel may stay focused on the difficult work that remains.
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I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

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Washburn Fire In Yosemite NP 7/18

Post by maverick »

InciWeb:
Basic Information

Current as of: 7/18/2022, 6:00:43 AM

Incident Type: Wildfire

Cause: Under Investigation

Location: Southern portion of Yosemite National Park; Sierra National Forest.

Incident Commander: Mike Wakoski, California Interagency Incident Management Team 13.

Incident Description: Full Suppression.

Coordinates: 37.499 latitude, -119.614 longitude


Current Situation


Total Personnel: 1,562

Size: 4,911 Acres

Percent of Perimeter Contained: 50%

Fuels Involved:

Very heavy accumulations of available dead surface fuels with ample snags, downed timber, and concentrations in an old-growth forest condition. Representative fuels include large timber with an understory of young conifer and shrubs. Very deep duff and accumulation of timber litter (branchwood and needles) dominate the forest floor. Recent large fire scars in the area include woody fuels and recent shrub growth. Live fuels (shrubs/brush) are seasonally moist and are providing limited intensity and spread.

Significant Events

Continued persistent weather pattern of warm and dry conditions supports the potential of active-to very active fire behavior for the next several days. The fire continues to burn in heavy dead and down timber fuels. Observed fire behavior has been diminished by successful suppression activities on most portions of the fire. Primary area of concern for fire behavior includes the S. Fk. Merced River upstream to the Iron Cr. and Johnson Cr. areas where most of the current activity is occurring. Continued warm and dry weather may contribute to additional fire growth and smoke production where control lines have yet to be constructed.

Outlook


Planned Actions

Continue to secure and reinforce the Hwy 41 corridor, Mariposa Grove Rd., and continue to construct handline and dozer line from Wawona Point to the west and north to South Fork of the Merced River. Protect remote cabins within Yosemite National Park and Sierra National Forest. Continue to construct handline where possible in the Iron Creek drainage area. Continue contingency line construction south of the incident.

Projected Incident Activity

24 hours: Continuation of warm/dry weather will provide active fire behavior throughout the period, with the burning conditions extending well into the night due to poor relative humidity recovery on higher terrain. Generally light winds will produce sustained backing on slopes with flanking, torching, and spotting; southwesterly ridgetop winds will provide clear sky and good ventilation. Continued potential for spotting north of the South Fork Merced River in the Johnson Creek area as the fire backs to the bottom of the slope.

48 hours: Warm and dry conditions combined with poor-fair night time relative humidity will produce conditions for active to very active fire behavior on uncontained portions of the fire perimeter. Expect sustained backing, active flanking, with torching with spotting as the fire consumes pockets of unburned fuel in the South Fork Merced River drainage.

72 hours: Continued warm and dry conditions will maintain the potential for active to very active fire behavior. Expect a significant reduction in fire activity due to suppression activities. Smoke will be visible in the late afternoon with southwesterly transport wind. Night time cooling will allow smoke to accumulate in the valleys due to downslope flow and a strong inversion.

Anticipated after 72 hours:
The persistent pattern of warm and dry conditions will continue with very little change overall. Conditions will be present to provide the potential of active to very active fire behavior on unlined portions of the fire.

Current Weather

Weather Concerns


The persistent warm and dry pattern will continue with high pressure over the region. The prevailing winds will be out of the west-southwest, but most of the fireline will continue to be impacted by light, terrain-driven winds becoming upslope/upcanyon in the afternoon. Elevations above 7500 feet on the eastside of the fire will see gusts up to 20 mph.

Observed Weather Conditions July 17, 2022: Wind Speed / Max. Gust Sustained 3-7 mph gusts to 17 mph. Temp Highs 85-92 Direction Wes-Southwest RH 18-28%

Forecasted Weather for Next Operational Period ¿ July 18, 2022: Wind Speed / Max. Gust Sustained 3-7 mph gusts to 17 mph. Temp Highs 83-91 Direction Southwest RH 18-28%
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Professional Sierra Landscape Photographer

I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

Have a safer backcountry experience by using the HST ReConn Form 2.0, named after Larry Conn, a HST member: http://reconn.org
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Oak Fire 7/22

Post by maverick »

Mariposa Co Sheriff’s Dept:
BASIC INFORMATION

Current as of:July 22nd, 2022 - 7:47 PM

Incident Type:Wildfire

Cause:Under Investigation

Date of Origin: Friday July, 22nd, 20202 at approximately 2:10 PM

Location: Hwy 140 and Carstens Road, near Midpines

Incident Commander:
Cal Fire Merced - Mariposa - Merced Unit

Coordinates: 37.5509366, - 119.99234728

CURRENT SITUATION

Total Personnel: Unknown

Size: 1,600 Acres

Fuels Involved: Timber, Brush, Understory Litter


Significant Events

Evacuations: Mandatory Evacuations in place for Triangle Road from Highway 140 to Darrah road, Darrah Road to Valley View Road and all side Roads, ALL of Jerseydale, Buckingham Mountain Road, Plumbar Creek Road, Silva Road from Triangle Road to Van Ness Road, Triangle Road from Darrah Road to Westfall Road, Lushmeadows Subdivision.

Road Closures:

Highway 140 at Allred Road

Highway 140 at Ponderosa Way


OUTLOOK

Remarks: The Oak Fire is a fast-moving fire.
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I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

Have a safer backcountry experience by using the HST ReConn Form 2.0, named after Larry Conn, a HST member: http://reconn.org
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Oak Fire Update 7/23

Post by maverick »


Mariposa Co Sheriff’s Dept:

The fire has reached:
-6,555 acers
-0% contained
-5 structures damaged
-10 structures destroyed
-2000 structures threatened
-4 Helicopters
-4 Dozers
-403 Personnel
-45 Engines
-4 Water Tenders
Professional Sierra Landscape Photographer

I don't give out specific route information, my belief is that it takes away from the whole adventure spirit of a trip, if you need every inch planned out, you'll have to get that from someone else.

Have a safer backcountry experience by using the HST ReConn Form 2.0, named after Larry Conn, a HST member: http://reconn.org
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Re: 2022 Fire/Smoke Impact Reports

Post by aaron_in_sf »

Drove into the Yosemite Valley today; cancelled our one night splurge at the lodge and aborted planned trip for tomorrow. The AQI was over 400 when we drove in, though it cleared a bit as the sun went down. Not hikable for my tastes. Plume in imagery makes the JMT section to Reds’s all in some smoke and at the mercy of what develops.

Now, have to see where my family can get to as a Plan C for a few nights this week…
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Re: 2022 Fire/Smoke Impact Reports

Post by kpeter »

July 23 just after midnight smoke moved up the Mono Creek drainage and woke me at Fourth Recess Lake. I put on a KN95 I carried with me for allergies and it helped me sleep. At dawn at that elevation the smoke obscured distant mountains but did not prevent me from seeing across the lake, so it ruined photography but did not seem as unhealthful as some days in the Bay Area during fire season.
DSC06854.jpg
I packed up and left at first light. I met people who complained about the smoke hitting Ruby Lake also just after midnight.

As I moved up in elevation the smoke thinned, and in Mono Pass I could look down on two separate brown bands but was above the smoke.
DSC06855.jpg
On the drive from Rock Creek up 395 to the turnoff for Sonora Pass there was constant smoke.

As I drove west up 108 the smoke thinned and was gone in Sonora Pass.
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