empire fire map 09082017

September 11, 2017 - There are multiple fires burning in Yosemite National Park's wilderness. Showers and thunderstorms are possible each afternoon and evening through 
Tuesday, with a slight increase in temperature and lower relative humidities. Gusty and erratic winds are possible with any thunderstorm that develops.

Smoke will be moderate throughout the Yosemite area, except for Wawona, today as the Railroad fire winds down. Winds from a more southerly direction could bring light smoke north into Yosemite NP from the Railroad Fire, combining with smoke from South Fork and Empire Fires. These impacts will likely be moderate and mostly transient; dense smoke not expected. Dispersion will decrease slightly today andtomorrow, with possible thunderstorms this afternoon.  Fire Managers are working with the local Air Quality Districts and will be monitoring smoke impacts to the park and local communities. Community members who are sensitive to smoke may want to close their windows and doors, limit outdoor activity, and monitor the air quality forecast linked below for changes to the forecasted patterns.

https://wildlandfiresmoke.net/outlooks/2017/CentralSierraFires#Area2
https://www.nps.gov/yose/learn/nature/aqmonitoring.htm
https://app.airsis.com/USFS/UnitMap?custId=11&unitId=1011&isHistoric=False

Railroad fire is 12,407 acres and 75% contained. Fire managers are urging the public to drive with caution on Hwy 41 as a large firefighting presence remains along the hwy. All evacuation orders have been lifted.  For more information :https://inciweb.nwcg.gov/incident/5553/

South Fork

Discovered: 8/13/17                           
Location: .75 miles east of the community of Wawona
Size: 6,740 acres        Cause: Unknown        Containment: 47%      Fuels: Mixed conifer and red fir
Fire remains quiet near the community of Wawona on the west and south flank of the fire. Sections of the north flank and the entire east flank are continuing to burn in the wilderness.
https://inciweb.nwcg.gov/incident/5502/

Empire

Discovered: 8/1/17    
Location1 mile east of Yosemite Ski and Snowboard Area and 3/4 mile south of Glacier Point Road
Size: 5,787 acres        Cause: Lightning         Containment: 55%      Fuels: Red fir             
Fire activity increased yesterday due to a strategic burning operation near Glacier Point road between Ostrander trailhead and Mono Meadow trailhead. This activity will continue today to tie the northern flank of the fire to Glacier Point Road. Glacier Point Road remains closed until further notice due to fire operations.

https://inciweb.nwcg.gov/incident/5475/

Starr King
Discovered: 8/2/17     
Location: N 37° 42.965' x W 119° 29.588' at approximately 7800 feet elevation
Size: 60 acres             Cause: Lightning         Spread Potential: Low/ Moderate
Fuels: Red fir/ Lodgepole        Strategy: Monitor                   

Fire personnel have secured the northern edge of the fire which will prevent fire from entering steep slopes down into Little Yosemite Valley. Fire continues to back towards the Cascade Cliff area. Smoke will be visible from the high country.

Rattlesnake

Discovered: 9/7/17
Location: Hwy 120/Big Oak Flat Rd. at Foresta Rd.
Size: 15 ac.                 Cause: RV/ Vehicle fire   Containment: 100%       Fuels: Grass mixed shrubs
The fire started due to an RV catching fire and spreading north into the old Big Meadow burn scar which helped limit its spread.  Yosemite fire crews will be checking this fire.

Yosemite Creek

Discovered: 8/3/17     
Location: N 37° 50.414' x W 119° 38.088' at approximately 7,970 feet elevation
Size: 3.4 acres            Cause: Lightning                     Spread Potential: Low
Fuels: Red fir              Strategy: Monitor                   
Fire is creeping and smoldering and will continue to be checked by fire crews.

Porcupine

Discovered: 8/2/17     Location: N 37° 49.336' x W 119° 34.720' at approximately 8154 feet elevation off Tioga road.  
Size: 4.8 acres                        Cause: Lightning         Spread Potential: Low
Fuels: Lodgepole/Red fir         Strategy: Monitor                   

Fires edge is 30 feet from the Tioga road and is creeping and smoldering and will be checked by fire crews. 
Source: NPS