With 1 049.6 hPa registered at Heathrow Airport Sunday into Monday, January 19 to 20, 2020, London has set its new atmospheric pressure record — the highest since records began in 1692. The barometer reached 1 049.6 hPa overnight, breaking the previous record of 1…
A spectacular outbreak of rare polar stratospheric clouds (PDCs) was reported around the Arctic Circle, starting December 30, 2019. The display lasted nearly an hour and was commonly regarded as the brightest display that any of the locals have ever seen. The…
The air quality in Sydney, Australia continued to worsen on Tuesday, December 10, 2019, as roughly 100 bushfires burned in New South Wales (NSW) and strong north winds brought further smoke into the city. The haze was so thick in some areas that it was 11 times more…
An atmospheric wave about half as wide as the Earth is supercharging noctilucent clouds (NLCs) in the southern hemisphere, with NASA's Aeronomy of Ice in the Mesosphere (AIM) spacecraft detecting the phenomenon in this series of south polar images from November…
Denver residents woke up to 203 mm (8 inches) of snow on Thanksgiving morning, November 28, 2019, making it the most snow on the ground on the holiday since 1979, according to official statistics at Denver International Airport. Meanwhile, fog covered the city on…
Forecast models suggest a major stratospheric warming event might develop in December 2019, possibly initiating a collapse sequence of the polar vortex. Main cooling effects are expected across Eurasia and the United States. "This might have important…
A 'double Gigantic Jet' was captured over Puerto Rico on October 2, 2019, in what could quite possibly be the first record of this phenomenon. "In the past, I've captured Gigantic Jet events that split into two, but this is the first time I've…
Researchers from the University of Colorado Boulder revealed that the purple sky seen in the state was due to the eruption that occurred on Raikoke volcano in Russia, located 7 535 km (4 682 miles) away, on June 22, 2019. The team, composed of atmospheric scientists…
The 2019 northern hemisphere noctilucent clouds season is turning out to be the most remarkable ever. After record strong start of the season at the end of May, NLCs were seen for the first time as low as San Francisco Bay Area, California on June 9 and throughout…
Sky watchers in the San Francisco Bay Area, California witnessed an extraordinary display of noctilucent clouds (NLCs) on June 9, 2019. As these clouds are typically confined to latitudes above +55 N and San Francisco is at +38 N, this marks one of the…
