The Iberian Peninsula is experiencing one of the most notable wildfire smoke events in its modern history with Aerosol Index (AI) values on June 27, 2023, exceeding 4 in some locations (AOD values >1).
A large plume of Saharan dust lifted off West Africa on March 31, 2023, and started spreading west toward the Canary Islands and Cabo Verde.
The polar vortex, a large area of low pressure in the upper atmosphere that typically sits over the poles, is set to weaken as a sudden stratospheric warming (SSW) event unfolds in the northern hemisphere. This event has the potential to have a significant impact on winter weather, as it allows cold Arctic air to escape and cause outbreaks in Europe, Asia, Canada, and the United States.
A rare outbreak of polar stratospheric clouds (PSCs) is in progress around the North Pole.
A sharp spike in the frequency of noctilucent clouds was detected at the end of June 2022. This is the largest NLCs spike in the last 15 years.
The second large plume of Saharan dust reached the Caribbean and South America on June 7, 2022, after a journey of more than 5 500 km (3 400 miles), as forecasted by Copernicus CAMS and confirmed by Sentinel-5p Aerosol index.
A large plume of Saharan dust emerged off the coast of western Africa this week and has now reached the Caribbean Sea and South America. This is the season’s first large plume of Saharan dust to cross the Atlantic.
New research led by the National Oceanography Centre (NOC) and ICARUS presented seasonal to decadal variations in Northern Hemisphere jet stream latitude and speed over land (Eurasia, North America) and oceanic (North Atlantic, North Pacific) regions for the period…
The World Meteorological Organization (WMO) has verified 2 new world records for extreme megaflashes of lightning. The first is for the longest distance single flash of 768 ± 8 km (477.2 ± 5 miles) across the southern U.S. on April 29, 2020. This is 60…
Hours after the massive eruption at Hunga Tonga-Hunga Ha'apai1 volcano on January 15, 2022, cameras at the Gemini Observatory on Mauna Kea, Hawai'i, U.S. recorded red waves rippling over Hawai'i. "These are gravity waves, a type of atmospheric…
