For more information about National Park Service air resources, please visit

Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
Visual Range is about 48 miles • updated 09/20/2014 10:45 AM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 09/20/2014 10:00 AM CDT

O3 concentration Current Today's
8-hour average 24 ppb 29 ppb   33 ppb  
1-hour average 21 ppb 28 ppb   37 ppb  

*Ozone (O3) is measured in parts per billion (ppb)

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 09/20/2014 10:00 AM CDT

Current temperature  72 F 
Yesterday's minimum temperature  70 F 
Yesterday's maximum temperature  87 F 
Current relative humidity  84 % 
Yesterday's minimum relative humidity  45 % 
Yesterday's maximum relative humidity  89 % 
Current wind speed  1 mph  
Current wind direction NE
Current solar radiation  551 watts/m 2 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.03 in. 


Approximate Visual Range
Current Yesterday's
  48 miles 155 miles 59 miles

map Grand Teton National Park Web CameraGreat Smoky Mountains National Park Web Camera Home Shenandoah National Park Web Camera Hawaii Volcanoes National Park Web Camera Big Bend National Park Web Camera Joshua Tree National Park Web Camera Grand Canyon National Park Web Camera Theodore Roosevelt National Park Web Camera Washington, D.C. Web Camera Acadia National Park Web Camera Mammoth Cave National Park Web Camera Great Smoky Mountains National Park, Purchase Knob Web Camera Great Smoky Mountains National Park, Look Rock Web Camera North Cascades National Park Web Camera Olympic National Park Web Camera Mount Rainier National Park Web Camera Sequoia/Kings Canyon National Park Web Camera Yosemite National Park Web Camera Denali National Park & Preserve Web Camera Point Reyes National Seashore Web Camera
Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 09/20/2014 10:00 AM CDT
Ozone concentration is ***O3*** parts per billion air quality index (AQI) for Ozone and Particulate Matter from good to unhealthy
Current Weather »
at K-Bar Ranch
updated 09/20/2014 10:00 AM CDT
72 F

84 %

NE-1 mph

Precipitation - 1 hr
0 in.

  • See more weather data »
  • Feature »
    feature podcast

    Last Updated: September 20, 2014