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Publish Date: 16 February 2017
Current Situation and Outlook During the second half of 2016, tropical Pacific Ocean surface temperatures were at borderline weak La Niña/cool-neutral levels. Many atmospheric ENSO indicators also approached or exceeded...
Publish Date: 12 April 2017
Geneva 12 April 2017 (WMO) - The World Meteorological Organization has issued its first annual Airborne Dust Bulletin, giving an overview of atmospheric dust levels and geographical distribution in 2016. The report is part of efforts to improve observations and warnings of sand and dust storms, which pose serious risks to the environment, human health and economy in arid and semi-Arid regions. The global average Aerosol Optical Depth – a measure of the dust burden - for 2016 was similar to previous years, according to the report, which highlighted particularly severe sand and dust storms in...
Publish Date: 15 May 2017
A concerted international campaign to improve predictions of weather, climate and ice conditions in the Arctic and Antarctic has been launched to minimize the environmental risks and maximize the opportunities associated with rapid climate change in polar regions and to close the current gaps in polar forecasting capacity. The Year of Polar Prediction takes place from mid-2017 to mid-2019 in order to cover an entire year in both the Arctic and Antarctic and involves the World Meteorological Organization (WMO), Germany’s Alfred Wegener Institute (AWI) and a wide array of partners around the...
Publish Date: 26 May 2017
Haiti’s National Meteorological and Hydrological Service (UHM) has a new headquarters – an important milestone in the drive to improve weather forecasts and warnings, and build resilience to tropical cyclones, floods and other hazards. The new building was inaugurated at a high-level ceremony on 26 May. It is constructed to withstand earthquakes and hurricanes, enabling operations to continue during extreme events when services are most needed. Solar panels will power daily activities and will provide a back-up against electricity outages.
Publish Date: 14 December 2017
Sea surface temperatures in the eastern tropical Pacific Ocean have recently cooled to weak La Niña levels. Similarly, most atmospheric indicators are now consistent with the early stages of a La Niña event. Climate models indicate that weak La Niña conditions are likely to persist into the first quarter of 2018. A return to ENSO-neutral conditions before early 2018 is less likely, while the emergence of El Niño before the second quarter of 2018 appears very remote. National Meteorological and Hydrological Services will continue to closely monitor changes in the state of ENSO over the coming...
Publish Date: 3 April 2017
Top ozone experts from around the world highlighted the need for increased research and observations to inform policy on ozone and climate at a meeting sponsored by UN Environment and the World Meteorological Organization in Geneva, 28 – 30 March. The 10 th Ozone Research Managers (ORM) meeting concluded that integrated earth science observation systems are essential to ensure that action to protect the ozone layer also benefits the climate, given the complex and evolving interaction between the ozone layer and the climate system.
Publish Date: 7 July 2017
ENSO neutral conditions currently prevail in the tropical Pacific Ocean, despite sea surface temperatures being near the El Niño threshold. Most climate models surveyed indicate that ENSO-neutral conditions will continue through July-September 2017, followed by a 50-60% chance of a continuation of ENSO-neutral during the subsequent months of 2017. The development of El Niño conditions is slightly less likely, while the emergence of La Niña appears unlikely. National Meteorological and Hydrological Services will continue to closely monitor changes in the state of ENSO over the coming months.