Vaisala introduces its next-generation sounding system

Vaisala Cirrus Sounding System MW51
Press Releases

Press release
November 2, 2021

Vaisala introduces its next-generation sounding system

Vaisala Cirrus Sounding System MW51 launches a new era of technology innovation to advance meteorological upper air observations.

Vaisala, a global leader in weather, environmental, and industrial measurement, today announced the launch of Vaisala Cirrus Sounding System MW51, a state-of-the-art sounding system that delivers industry-first capabilities, including readiness to conduct simultaneous upper air observations, to provide unprecedented visibility into rapidly changing weather conditions and enhance forecasting accuracy.

The Vaisala Cirrus Sounding System MW51 includes the following additional advancements:

  • Optimized performance and reliability: Proprietary radio technology enables superior operational performance and dependability over a long life cycle.
  • Greater portability: New compact design is purpose built for operating in versatile environments while an IP54 rating provides excellent protection against dust and water.
  • Enhanced usability: Intuitive and easy to use with access to real-time sounding status information and comprehensive diagnostics.
  • Robust data security: Provides protection against data threats and unauthorized access.

“Inventing unsurpassed weather and environmental solutions has reflected the spirit of Vaisala for 85 years, and atmospheric sounding technology has always been at the heart of it. The WMO Global Observing System network releases more than 1,400 radiosondes every day, and the largest positive impact for global numerical weather predications is achieved with Vaisala upper air sounding products,” said Aki Lilja, Soundings Director, Weather and Environment, Vaisala. “MW51 demonstrates our continued commitment to providing exceptional weather prediction capabilities to meteorological agencies across the world.”

For more information about how MW51 enables highly accurate and reliable synoptic and adaptive atmospheric measurements to help protect communities from the impacts of everyday and extreme weather, visit

More information for the media
Kendra Westerkamp, MAPRagency
Tel. +1 720-261-2300
[email protected]  

About Vaisala
Vaisala is a global leader in weather, environmental, and industrial measurements. Building on 85 years of experience, Vaisala provides observations for a better world, with space-proof technology even exploring Mars and beyond. We are a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services. Headquartered in Finland, Vaisala employs over 1,900 professionals worldwide and is listed on the Nasdaq Helsinki stock exchange.