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 51 miles • updated 10/22/2014 08:15 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 10/22/2014 08:00 PM CDT

O3 concentration Current Today's
Maximum
Yesterday's
Maximum
8-hour average 35 ppb 35 ppb   36 ppb  
1-hour average 29 ppb 40 ppb   38 ppb  

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


AQI Ozone


Weather at K-Bar Ranch Monitoring Site updated 10/22/2014 08:00 PM CDT

Current temperature  66 F 
Yesterday's minimum temperature  62 F 
Yesterday's maximum temperature  67 F 
Current relative humidity  86 % 
Yesterday's minimum relative humidity  70 % 
Yesterday's maximum relative humidity  95 % 
Current wind speed  7 mph  
Current wind direction SSE
Current solar radiation  551 watts/m 2 
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.51 in. 


Visibility  updated 10/22/2014 05:00 PM CDT

Approximate Visual Range
Current Yesterday's
Maximum
Yesterday's
Minimum
  51 miles 85 miles 19 miles


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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 10/22/2014 08:00 PM 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 10/22/2014 08:00 PM CDT
Temperature
66 F

Humidity
86 %

Wind
SSE-7 mph

Precipitation - 1 hr
0 in.

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    Last Updated: October 22, 2014