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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 1 mile • updated 10/30/2014 11:30 AM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 10/30/2014 11:00 AM CDT

O3 concentration Current Today's
8-hour average 32 ppb 37 ppb   45 ppb  
1-hour average 34 ppb 35 ppb   47 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 10/30/2014 11:00 AM CDT

Current temperature  71 F 
Yesterday's minimum temperature  61 F 
Yesterday's maximum temperature  78 F 
Current relative humidity  67 % 
Yesterday's minimum relative humidity  42 % 
Yesterday's maximum relative humidity  70 % 
Current wind speed  4 mph  
Current wind direction SE
Current solar radiation  551 watts/m 2 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 


Approximate Visual Range
Current Yesterday's
  1 mile 73 mile 1 mile

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 10/30/2014 11:00 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 10/30/2014 11:00 AM CDT
71 F

67 %

SE-4 mph

Precipitation - 1 hr
0 in.

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    Last Updated: October 30, 2014