WMO competitions and challenges

Calendar Competition – Weather App Awards – Verification Challenge

The World Meteorological Organization (WMO) has launched three initiatives that are of general interest to the meteorological community: a competition, an award and a challenge.

2021 Calendar Competition

WMO’s 2021 Calendar Competition has been launched. Winning entries will feature in the WMO 2021 online calendar. They will be showcased on the WMO website and social media platforms, and feature prominently in the World Meteorological Day 2021 celebrations. WMO will also promote them among other U.N. agencies and showcase them during the UN Decade of Ocean Science for Sustainable Development to be held from 2021-2030.

The deadline for submissions is 15 September 2020 with the. Results being announced by 16 October 2020.

International Weather App Awards

WMO has launched the International Weather App Awards. Owners/developers of weather and climate apps from all sectors – public, private, academic, civil society – are invited to submit their applications no later than 30 September 2020. The award categories are:

  • Public weather forecasts and information apps (general category).
  • Specialized apps.
  • Innovation and promotion of the use of weather and climate information for development.

More information about the award

2nd International Verification Challenge
graphic: WMO (M. Wegemann)

Second International Verification Challenge

To encourage the development of verification approaches using new sources and types of observations, the WMO’s Joint Working Group on Forecast Verification Research (JWGFVR) is conducting a challenge to develop and demonstrate new forecast verification approaches that make use of non-traditional observations. The JWGFVR warmly encourages all interested researchers and practitioners to participate by providing new scores and visualisations.

The deadline for entries is 30 April 2021. The winner will be announced in May 2021 and will receive all expense paid attendance and a keynote address as the 8th International Verification Methods Workshop to be held in late 2021.

How to participate


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