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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 01/31/2015 11:30 PM CST
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 01/31/2015 11:00 PM CST

O3 concentration Current Today's
8-hour average 30 ppb 31 ppb   31 ppb  
1-hour average 28 ppb 33 ppb   35 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 01/31/2015 11:00 PM CST

Current temperature  52 F 
Yesterday's minimum temperature  46 F 
Yesterday's maximum temperature  61 F 
Current relative humidity  91 % 
Yesterday's minimum relative humidity  49 % 
Yesterday's maximum relative humidity  94 % 
Current wind speed  7 mph  
Current wind direction SE
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.97 in. 
Yesterday's precipitation  0.24 in. 

Visibility  updated 01/31/2015 11:00 PM CST

Approximate Visual Range
Current Yesterday's
  243 miles 243 miles 69 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 01/31/2015 11:00 PM CST
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 01/31/2015 11:00 PM CST
52 F

91 %

SE-7 mph

Precipitation - 1 hr
0 in.

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    Last Updated: January 31, 2015