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…
Elevated levels of sulfur dioxide (SO2) are present across the SW Pacific and Australia after the eruption of the Hunga Tonga-Hunga Ha'apai volcano on January 15, 2022. Since the eruption, the volcano has been releasing huge amounts of sulfur dioxide and…
Northern regions of Scandinavia were treated to a very rare high-altitude spectacle on January 17, 2022, photographer Adrien Mauduit reports. For about 2 hours, rare polar stratospheric clouds (PSC) type II appeared out of nowhere, displaying a staggering…
A severe dust storm that started in southern Kazakhstan hit parts of Uzbekistan on the evening of November 4, 2021, growing under favorable weather conditions into the worst since the country started keeping meteorological records in 1871. The worst affected were…
This year's ozone hole over the southern hemisphere is again deep and larger-than-average due to the colder than usual winter atmosphere over the region. It reached its maximum area on October 7 and ranked as the 13th largest since 1979, according to NASA and…
Another large Saharan dust cloud has lifted off western Africa late Sunday, August 22, 2021, and is now moving over the Atlantic Ocean toward the Caribbean and the United States. The cloud seems of similar strength to the one produced last week. Image credit:…
Storm chaser Rob Neep recently captured one of the best-ever videos of a highly elusive transient luminous event called 'blue jets.' The jets formed over Sonora, Mexico on August 3, 2021, and were captured from St. David, Arizona. "I couldn't…
Noctilucent clouds are still bright and abundant 2 months after the start of the 2021 northern hemisphere season (May/June – August), and at the highest latitudes they are setting records, Dr. Tony Phillips of SpaceWeather.com noted in his latest NLC update….
