For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.


Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
    Webcams
Visual Range is about 140 miles • updated 09/02/2014 06:30 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 09/02/2014 06:00 PM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 22 ppb 25 ppb   26 ppb  
1-hour average 26 ppb 27 ppb   29 ppb  

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


AQI Ozone


Weather at K-Bar Ranch Monitoring Site updated 09/02/2014 06:00 PM CDT

Current temperature  96 F 
Yesterday's minimum temperature  80 F 
Yesterday's maximum temperature  99 F 
Current relative humidity  20 % 
Yesterday's minimum relative humidity  18 % 
Yesterday's maximum relative humidity  49 % 
Current wind speed  8 mph  
Current wind direction ENE
Current solar radiation  551 watts/m 2 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 


Visibility  updated 09/02/2014 04:00 PM CDT

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  140 miles 205 miles 89 miles


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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 09/02/2014 06:00 PM 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 09/02/2014 06:00 PM CDT
Temperature
96 F

Humidity
20 %

Wind
ENE-8 mph

Precipitation - 1 hr
0 in.

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    Last Updated: September 02, 2014