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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 138 miles • updated 03/29/2015 08:00 PM CDT
View from XXXX Looking DIRECTION
Ozone(O3) at K-Bar Ranch Monitoring Site  updated 03/29/2015 07:00 PM CDT

O3 concentration Current Today's
8-hour average 48 ppb 50 ppb   52 ppb  
1-hour average 52 ppb 53 ppb   53 ppb  

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

AQI Ozone

Weather at K-Bar Ranch Monitoring Site updated 03/29/2015 07:00 PM CDT

Current temperature  87 F 
Yesterday's minimum temperature  50 F 
Yesterday's maximum temperature  87 F 
Current relative humidity  9 % 
Yesterday's minimum relative humidity  11 % 
Yesterday's maximum relative humidity  42 % 
Current wind speed  6 mph  
Current wind direction NW
Current solar radiation   
Precipitation in last hour  0.00 in. 
Precipitation since midnight  0.00 in. 
Yesterday's precipitation  0.00 in. 

Visibility  updated 03/29/2015 06:00 PM CDT

Approximate Visual Range
Current Yesterday's
  138 miles 202 miles 114 miles

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Current Air Quality »
at K-Bar Ranch
Ozone - O3
updated 03/29/2015 07:00 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 03/29/2015 07:00 PM CDT
87 F

9 %

NW-6 mph

Precipitation - 1 hr
0 in.

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    Last Updated: March 29, 2015