National Park Service

Air Resources






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

NPS » Explore Nature » Air Resources

Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
    Webcams
Visual Range is about 48 miles •
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 05/25/2013 11:00 AM ST

O3 concentration Current Today's
Maximum		 Yesterday's
Maximum
8-hour average 39 ppb 54 ppb   56 ppb  
1-hour average 48 ppb 49 ppb   57 ppb  

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


AQI Ozone


Weather at K-Bar Ranch Monitoring Site updated 05/25/2013 11:00 AM ST

Current temperature  79 F 
Yesterday's minimum temperature  65 F 
Yesterday's maximum temperature  88 F 
Current relative humidity  47 % 
Yesterday's minimum relative humidity  30 % 
Yesterday's maximum relative humidity  80 % 
Current wind speed  7 mph  
Current wind direction SE
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 05/25/2013 12:00 PM ST

Approximate Visual Range
 Current Yesterday's
Maximum		 Yesterday's
Minimum
  48 miles 82 miles 25 miles


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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 05/25/2013 11:00 AM ST
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 05/25/2013 11:00 AM ST
Temperature
79 F

Humidity
47 %

Wind
SE-7 mph

Precipitation - 1 hr
0 in.

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    Last Updated: May 25, 2013