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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 243 miles • updated 03/27/2015 05:15 AM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 03/27/2015 05:00 AM CDT

O3 concentration Current Today's
8-hour average 45 ppb 47 ppb   47 ppb  
1-hour average 44 ppb 45 ppb   50 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 03/27/2015 05:00 AM CDT

Current temperature  41 F 
Yesterday's minimum temperature  46 F 
Yesterday's maximum temperature  66 F 
Current relative humidity  71 % 
Yesterday's minimum relative humidity  22 % 
Yesterday's maximum relative humidity  65 % 
Current wind speed  2 mph  
Current wind direction NE
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 03/27/2015 02:00 AM CDT

Approximate Visual Range
Current Yesterday's
  243 miles 208 miles 14 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 03/27/2015 05:00 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 03/27/2015 05:00 AM CDT
41 F

71 %

NE-2 mph

Precipitation - 1 hr
0 in.

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    Last Updated: March 27, 2015