For more information about National Park Service air resources, please visit http://www.nature.nps.gov/air/.


Big Bend National Park

  • View of Sierra del Carmen in Mexico
    From the Northwest
  • Air Data
    & Weather
  • NPS Air
    Webcams
Visual Range is about 48 miles • updated 09/20/2014 10:45 AM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 09/20/2014 10:00 AM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 24 ppb 29 ppb   33 ppb  
1-hour average 21 ppb 28 ppb   37 ppb  

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


AQI Ozone


Weather at K-Bar Ranch Monitoring Site updated 09/20/2014 10:00 AM CDT

Current temperature  72 F 
Yesterday's minimum temperature  70 F 
Yesterday's maximum temperature  87 F 
Current relative humidity  84 % 
Yesterday's minimum relative humidity  45 % 
Yesterday's maximum relative humidity  89 % 
Current wind speed  1 mph  
Current wind direction NE
Current solar radiation  551 watts/m 2 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.03 in. 


Visibility 

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  48 miles 155 miles 59 miles


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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 09/20/2014 10:00 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 09/20/2014 10:00 AM CDT
Temperature
72 F

Humidity
84 %

Wind
NE-1 mph

Precipitation - 1 hr
0 in.

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    Last Updated: September 20, 2014