AviMet® Windscherungswarnsystem für niedrige Höhen LLWAS

Vaisala AviMet® Windshear Alert System increases safety and comfort during take-off and landing, when crucial information about unpredictable changes in wind speed and direction is delivered in a timely and consistent manner. The solution decreases the burden on air traffic controllers by informing them immediately when and where windshear occurs and when the threat is over. The solution increases air traffic controllers’ decision-making confidence as decisions are based on facts, allowing them to issue timely and reliable advance warnings to pilots.

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Vaisala AviMet® Windshear Alert System


The Vaisala AviMet® Windshear Alert System offers aviation authorities the ability to dramatically improve aviation safety, and all weather traffic density. 

According to ICAO a wind shear warning shall be prepared for aerodromes where wind shear is considered a factor. The best result can be achieved by selecting the most appropriate system and technology for the specific needs of the aerodrome. Vaisala AviMet® Windshear Alert System incorporates all the best wind shear detection technologies; ultrasonic anemometer based LLWAS, Doppler Weather Radar, and wind LIDAR. 

The Vaisala AviMet® LLWAS is the most widely used ground based Windshear Alert System that incorporates the latest version of the windshear algorithm developed for the U.S. Federal Aviation Administration (FAA) and patented by the University Corporation for Atmospheric Research Foundation (UCAR). 

Windcube Scanning Doppler Lidars are versatile, high-precision instruments offering a wide remote measurement as well as multiple scanning patterns choices. They are eminently suitable for wind shear monitoring, as Lidar is one of the best technologies for detecting dry weather wind shear. In combination with a Doppler Weather Radar, which performs best in rainy conditions, the Windcube 400S-AT completes an all-weather 3D wind shear monitoring solution.

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Efficient solution for high-risk situations
The leading windshear alert system that combines the benefits of all key windshear detection technologies; anemometers, wind LIDAR’s, and Doppler Weather Radar. Vaisala windshear alert system uses proven wind shear methodologies and algorithms that are widely used at international airports.
Situational awareness extended outside of the immediate airport area
With remote sensing capabilities of Doppler Weather Radar and wind LIDAR’s the weather awareness beyond the immediate vicinity of the airport can be expanded. In addition to windshear detection and alerting applications these remote sensing systems can be used for other types of severe weather detection, wind studies, and safeguarding of runway and ramp operations.
Optimal solution to fit specific conditions of the airport
Every delivered Vaisala windshear system is designed for the specific conditions of an airport using standard and proven Vaisala weather system components. Experienced and competent Vaisala aviation weather professional performs a site assessment and survey to determine which kind of windshear detection system is most applicable to the airport in question.