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Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
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  • NPS Air
Visual Range is unavailable • updated 08/22/2014 10:15 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 08/22/2014 10:00 PM CDT

O3 concentration Current Today's
8-hour average 43 ppb 45 ppb   50 ppb  
1-hour average 41 ppb 47 ppb   55 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 08/22/2014 10:00 PM CDT

Current temperature  85 F 
Yesterday's minimum temperature  73 F 
Yesterday's maximum temperature  91 F 
Current relative humidity  36 % 
Yesterday's minimum relative humidity  34 % 
Yesterday's maximum relative humidity  70 % 
Current wind speed  13 mph  
Current wind direction SSE
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 08/22/2014 07:00 PM CDT

Approximate Visual Range
Current Yesterday's
  unavailable 148 miles 68 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 08/22/2014 10:00 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 08/22/2014 10:00 PM CDT
85 F

36 %

SSE-13 mph

Precipitation - 1 hr
0 in.

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    Last Updated: August 22, 2014