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Surface wind 250, 14 knots. Wind direction from azimuth 250 degrees magnetic (west-southwest) with an average windspeed of 14 knots. Visibility 10 kilometre or more. General visibility 10 kilometers or more. Scattered 2400 feet, broken 4600 feet. Cloud layers at the indicated altitude above the airport. Cumulonimbus detected.
The information from the signal is sent to an Air Traffic Control tower, or a Radar Approach Control (RAPCON) with a digital tag that describes the location, heading, and speed at which the aircraft is moving. The overall operation of the ASR-11 is similar to that of the ASR-9, with relatively few differences between the two radar systems.
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC is to prevent collisions, organize and expedite the flow of traffic in ...
NWS and FAA ASOS stations and most of new AWOS installations are currently equipped with ultrasonic wind sensors. Unlike all other measurements, which are made between 3 and 9 feet (0.91 and 2.74 meters) above the ground, wind speed and direction are measured at 30 feet (9.1 meters). ASOS visibility sensor
Anchorage Air Route Traffic Control Center. Anchorage Air Route Traffic Control Center (PAZA/ZAN) is an Area Control Center operated by the Federal Aviation Administration and is located just outside the main gate of Joint Base Elmendorf-Richardson at 700 North Boniface Parkway in Anchorage, Alaska, United States.
Pilots may decide whether to land (or conduct a missed approach) after wind shear alerts are issued. LLWAS wind shear alerts are defined as wind speed gain or loss of between 20 and 30 knots aligned with the active runway direction. "Low level" refers to altitudes of 2,000 ft (610 m) or less above ground level (AGL).
For example, if the wind is at 09015 that means the wind is currently from heading 090 degrees with a speed of 15 knots and the aircraft is taking-off from runway 24; having heading of 240. The pilot prefers the runway side with less than 90 difference from wind direction, in this case Runway 06; heading 060.
Air traffic controllers are generally individuals who possess superior situational awareness, spatial awareness, and are well organized.Other skills that are essential include a fast processing of numeric computations and mathematics, assertive and firm decision-making skills, the ability to maintain their composure under pressure, and an excellent short-term memory.