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 unavailable • updated 03/05/2015 02:00 PM CST
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 03/05/2015 01:00 PM CST

O3 concentration Current Today's
8-hour average 36 ppb 36 ppb   32 ppb  
1-hour average 39 ppb 40 ppb   38 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 03/05/2015 01:00 PM CST

Current temperature  41 F 
Yesterday's minimum temperature  41 F 
Yesterday's maximum temperature  70 F 
Current relative humidity  58 % 
Yesterday's minimum relative humidity  47 % 
Yesterday's maximum relative humidity  92 % 
Current wind speed  15 mph  
Current wind direction SSE
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.30 in. 


Approximate Visual Range
Current Yesterday's
  unavailable 152 miles 77 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 03/05/2015 01:00 PM CST
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 03/05/2015 01:00 PM CST
41 F

58 %

SSE-15 mph

Precipitation - 1 hr
0 in.

  • See more weather data »
  • Feature »
    feature podcast

    Last Updated: March 05, 2015