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Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
Visual Range is about 149 miles • updated 12/18/2014 10:30 PM CST
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 12/18/2014 10:00 PM CST

O3 concentration Current Today's
8-hour average 39 ppb 41 ppb   35 ppb  
1-hour average 40 ppb 43 ppb   37 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 12/18/2014 10:00 PM CST

Current temperature  54 F 
Yesterday's minimum temperature  44 F 
Yesterday's maximum temperature  64 F 
Current relative humidity  49 % 
Yesterday's minimum relative humidity  41 % 
Yesterday's maximum relative humidity  71 % 
Current wind speed  9 mph  
Current wind direction NW
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 12/18/2014 10:00 PM CST

Approximate Visual Range
Current Yesterday's
  149 miles 223 miles 85 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 12/18/2014 10:00 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 12/18/2014 10:00 PM CST
54 F

49 %

NW-9 mph

Precipitation - 1 hr
0 in.

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    Last Updated: December 18, 2014