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 32 miles •
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 05/21/2013 01:00 AM ST

O3 concentration Current Today's
Maximum		 Yesterday's
Maximum
8-hour average 64 ppb 64 ppb   67 ppb  
1-hour average 56 ppb 57 ppb   69 ppb  

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


AQI Ozone


Weather at K-Bar Ranch Monitoring Site

Current temperature  81 F 
Yesterday's minimum temperature  74 F 
Yesterday's maximum temperature  96 F 
Current relative humidity  16 % 
Yesterday's minimum relative humidity  5 % 
Yesterday's maximum relative humidity  24 % 
Current wind speed  6 mph  
Current wind direction S
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 05/21/2013 02:00 AM ST

Approximate Visual Range
 Current Yesterday's
Maximum		 Yesterday's
Minimum
  32 miles 140 miles 54 miles


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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 05/21/2013 01:00 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

Temperature
81 F

Humidity
16 %

Wind
S-6 mph

Precipitation - 1 hr
0 in.

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    Last Updated: May 21, 2013