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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 143 miles • updated 04/25/2015 07:15 AM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 04/25/2015 07:00 AM CDT

O3 concentration Current Today's
8-hour average 55 ppb 55 ppb   38 ppb  
1-hour average 57 ppb 58 ppb   54 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 04/25/2015 07:00 AM CDT

Current temperature  60 F 
Yesterday's minimum temperature  59 F 
Yesterday's maximum temperature  83 F 
Current relative humidity  26 % 
Yesterday's minimum relative humidity  23 % 
Yesterday's maximum relative humidity  67 % 
Current wind speed  7 mph  
Current wind direction ESE
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 04/25/2015 05:00 AM CDT

Approximate Visual Range
Current Yesterday's
  143 miles 243 miles 141 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 04/25/2015 07:00 AM 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 04/25/2015 07:00 AM CDT
60 F

26 %

ESE-7 mph

Precipitation - 1 hr
0 in.

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    Last Updated: April 25, 2015