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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 158 miles • updated 05/25/2015 04:30 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 05/25/2015 04:00 PM CDT

O3 concentration Current Today's
8-hour average 60 ppb 60 ppb   58 ppb  
1-hour average 63 ppb 64 ppb   61 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 05/25/2015 04:00 PM CDT

Current temperature  89 F 
Yesterday's minimum temperature  58 F 
Yesterday's maximum temperature  85 F 
Current relative humidity  8 % 
Yesterday's minimum relative humidity  14 % 
Yesterday's maximum relative humidity  84 % 
Current wind speed  8 mph  
Current wind direction NNE
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 05/25/2015 02:00 PM CDT

Approximate Visual Range
Current Yesterday's
  158 miles 243 miles 156 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 05/25/2015 04:00 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 05/25/2015 04:00 PM CDT
89 F

8 %

NNE-8 mph

Precipitation - 1 hr
0 in.

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    Last Updated: May 25, 2015