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Automated Meteorological Observing System (AMOS)

 

Automated weather observing systems are increasingly being installed at airports.  These systems consists of various weather sensors, a processor, a computer-generated voice subsystem, and in some cases a transmitter to broadcast local, minute-by-minute weather.  By providing current weather information, these systems are designed to improve the safety and efficiency of aviation operations as well as being the key to improving forecasts and warnings.

There are inherit limitations with an AMOS operating fully automated especially during rapidly changing weather conditions when some delay in reporting cloud ceilings and visibilities may occur.  To ensure flight safety weather technicians and ATC tower personnel will work together to maintain situational awareness of actual weather conditions and the observation reported by the AMOS.

The AMOS at RGAAF will be operated in full automated mode to provide the official METAR and SPECI observations using the International Civil Aviation Organization (ICAO) airport identifier KGRK.  Weather technicians are available 24/7 to augment the KGRK automated observation IAW AFMAN 15-111 and Operational Risk Management (ORM) principles.  Augmentation is the process of having position-qualified weather technicians manually add or edit data to an observation generated by an AMOS.  The two augmentation processes used are supplement and back-up.  Supplementing is a method of manually adding meteorological information to an automated observation that is beyond the capabilities of the AMOS to detect and/or report.  Back-up is the method of manually providing meteorological data and/or dissemination to an AMOS observation when the primary automated method is not operational or unavailable due to sensor and/or communication failure.

The AMOS at HAAF will be operated in full automated mode to provide the official METAR and SPECI observations using the International Civil Aviation Organization (ICAO) airport identifier KHLR.  There is no weather technician located at HAAF to augment the observation.  To ensure flight safety weather technicians located at RGAAF and HAAF ATC tower personnel will work together to maintain situational awareness of actual weather conditions and the observation reported by the AMOS during airfield operating hours (Mon-Fri, 0800-2400, except federal holidays).   Weather technicians from RGAAF will precede to the HAAF ATC Tower to augment (back-up) the KHLR AMOS when:

      (1)  The KHLR AMOS becomes fully inoperative.

      (2)  The KHLR AMOS ceiling and/or visibility sensors become inoperative AND weather conditions are/or forecast to be instrument flight rule (IFR) conditions (ceiling < 1000FT or visibility < 3SM within 2 hours.

      (3)  Requested by HAAF ATC personnel due to any condition that would adversely impact flight/ground operations.  Flight safety will always be the highest priority.

The automated weather observing systems listed below are located in the Western Training Area (WTA) and are provided for aircrew situational awareness.  Current weather conditions at these locations can be obtained by tuning into the frequency or by dialing into the system by phone.  For a complete list of automated systems in Texas click here.

 

To learn how to decode a METAR weather observation click here.

 

IMPORTANT:  THE SYSTEMS LISTED BELOW ARE NOT OWNED OR MAINTAINED BY THE 3D WEATHER SQUADRON.  TO REQUEST REPAIRS OR REPORT OUTAGES, CONTACT THE APPLICABLE AIRFIELD MANAGER.

 

 

Frequency

Phone Number

Brady (KBBD)

118.375

Toll Free: 1-800-510-1996

Commercial: 325-597-9139

Brownwood Municipal (KBWD)

118.375

Toll Free: 1-888-297-9399
Commercial: 325-643-3933

Burnet Municipal Craddock Field (KBMQ)

119.925

Commercial: 512-756-7277

Gatesville City-County Airport (KGOP)

119.725

Commercial: 254-865-6742

Lampasas Municipal (KLZZ)

119.075

Commercial: 512-556-6392

San Angelo (KSJT)

ATIS-128.45

Commercial: 325-949-6686

San Saba Municipal (K81R)

N/A

Toll Free: 1-800-379-6349
Commercial: 325-372-6027

 

 

This page last updated on March 24, 2015