AviMet® Windshear Alert System

Vaisala AviMet® Windshear Alert System increases safety and efficiency during take-off and landing. The system delivers crucial information about unpredictable changes in wind speed and direction in a timely and consistent manner - informing immediately when and where windshear occurs and when the threat is over. This 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 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 provides users with the fullest and most dependable windshear awareness available by consolidating the three best detection technologies:

  • Anemometer-based Low Level Windshear Alert System (LLWAS)
  • X-band weather radar
  • Wind lidar

Vaisala uses industry experts to conduct rigorous site visits and analyses before any equipment is installed. These visits ensure that any solution is built right the first time, and that its capabilities match an airport’s situation, with the right technologies deployed for proper windshear alerting.

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Key Benefits

Integrates the three primary windshear detection methods, or any combination thereof, into one system.
Can be scaled and customized for any airport or site, supported by expert pre-analysis. Also supported by Vaisala’s philosophy of building the right solutions for each end user.
All components are designed and manufactured by one company, Vaisala, which ensures the end user experiences one cohesive system.


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