Bulletin

The WMO Bulletin is the official journal of the World Meteorological Organization. The Bulletin was first published in 1952 and is produced in English, French, Russian and Spanish. The Bulletin is currently issued twice yearly in print and online.

While our everyday experience of weather is dominated by its local impact, weather and climate are truly global phenomena. It is often said that “Weather and Climate know no boundaries”,...

The ultimate goal of the activities coordinated through WMO is to enable the citizens and economies of all WMO Members to benefit from weather, climate and related environmental services. ...

WMO has been a leader in the facilitation of global data exchange and exploitation since its inception. Data exchange is at the heart of the WMO Convention, defining the core...

National Meteorological and Hydrological Services (NMHS) have a critical role to play as humanity faces growing risks from weather and climate extremes (IPCC 2021). Climate and weather information and early...

Scientific evidence of climate change is unequivocal. Human-induced climate change is already affecting every region of the Earth, with many experiencing more frequent weather and climate extremes. This conclusion was reached...

Water impacts our daily lives directly or indirectly through its use for domestic and drinking purposes, agriculture, industry, hydropower, navigation, recreation, ecosystem management and much more.