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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 159 miles • updated 05/26/2015 08:15 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 05/26/2015 08:00 PM CDT

O3 concentration Current Today's
8-hour average 55 ppb 66 ppb   66 ppb  
1-hour average 58 ppb 66 ppb   70 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 05/26/2015 08:00 PM CDT

Current temperature  91 F 
Yesterday's minimum temperature  68 F 
Yesterday's maximum temperature  90 F 
Current relative humidity  12 % 
Yesterday's minimum relative humidity  7 % 
Yesterday's maximum relative humidity  47 % 
Current wind speed  1 mph  
Current wind direction SW
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 05/26/2015 06:00 PM CDT

Approximate Visual Range
Current Yesterday's
  159 miles 243 miles 157 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 05/26/2015 08:00 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 05/26/2015 08:00 PM CDT
91 F

12 %

SW-1 mph

Precipitation - 1 hr
0 in.

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    Last Updated: May 26, 2015