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Automated Surface Observation System (ASOS)
ASOS is the primary weather recording system at KNPA. It is designated to automatically collect, process, and archive weather sensor measurement data. ASOS is capable of monitoring sky condition, visibility, present weather and intensity, obstructions to visibility, pressure, temperature, dewpoint, wind speed and direction, and precipitation amount. In addition to the monitor at the Facility, a second ASOS monitor is located in the control
tower.Sensor groups are located 1235’ north of the centerline of Runway 07L-25R. Observers can also manually enter data into this system.ASOS became the primary sensor group for NAVTRAMETOCFAC on 26 April 1995. All other observing equipment serves as backup to the ASOS.
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