Atmosphere

norway low pressure feb 10 2020

Extremely low air pressure brings down air traffic over northern Norway

Air pressure over northern Norway dropped below 940 hPa on February 10, 2020, as Storm Ciara impacted much of northern Europe, leading to the cancelation of air traffic over the region for the first time ever due to low pressure. It also resulted in high water...

February 12, 2020

london heathrow airport records highest air pressurejan 20 2020

London records highest atmospheric pressure in more than 300 years, UK

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...

January 22, 2020

polar stratospheric clouds december 2019 f

Intense outbreak of polar stratospheric clouds (PSCs) around the Arctic Circle

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...

January 02, 2020

sydney smoke dec 10 2019

Sydney chokes in smoke as Australia bushfires intensify, current period of poor air quality the 'longest' and 'most widespread' in the state's history

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...

December 11, 2019

noctilucent sky dec 1 2019

Planetary wave supercharging noctilucent clouds over Antarctica

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...

December 05, 2019

denver snow nov 28 2019

Denver sees snowiest Thanksgiving since 1979, dense fog on Black Friday, Colorado

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...

November 29, 2019

gfs 10mb t c dec 8 2019 f

Potential major stratospheric warming event

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...

November 22, 2019

rare double gigantic jet lightning captured over puerto rico oct 2 2019

First example of 'double Gigantic Jet' captured over Puerto Rico

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...

October 11, 2019

why purple sky colorado

Purple Colorado sky caused by Raikoke volcano eruption in Russia

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...

September 15, 2019

colorful noctilucent clouds 2019 poland f2

Extreme noctilucent clouds outbreak over Europe, rare red NLCs spotted

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...

June 24, 2019

NLCs over san francisco bay area california june 10 2019 f

Record-setting noctilucent clouds, NLCs seen over San Francisco Bay Area, California

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...

June 10, 2019

nlc cloud may 2019

2019 northern hemisphere noctilucent clouds season starts unusually strong

The 2019 northern hemisphere noctilucent cloud season has begun unusually strong. Electric-blue clouds were first observed by NASA's Aeronomy of Ice in the Mesosphere (AIM) spacecraft on May 20, marking the official start of the season. ​"For the past 2...

June 03, 2019

lomonosov satellite

Very powerful explosions of light detected in Earth's atmosphere, possibly a new physical phenomenon

Russian Astro and Geophysics satellite named after 18th-century scientists Mikhail Lomonosov, also known as MVL-300, has reportedly detected a previously unknown physical phenomenon in the Earth's atmosphere. This space-based observatory was launched in 2016 in...

February 17, 2019

dust over crete february 6 2019 skyline

Large amounts of African dust pushed into Greece and Canary Islands

Strong winds affecting northern Africa have pushed thick Saharan dust toward the Canary Islands and Greece on February 5 and 6, 2019, significantly lowering air quality in both regions. Large amounts of dust were pushed from Morocco and Mauritania toward the Canary...

February 06, 2019

ssw jan2019 wxcharts eu

Major Sudden Stratospheric Warming (SSW) underway, significant winter weather likely across large parts of Europe

A major Sudden Stratospheric Warming (SSW) event is currently underway in the stratosphere above the Arctic. While not every SSW event is the same and it takes some time for it to show its effects in the troposphere, meteorologists say we can expect colder air move...

January 02, 2019

nlc antarctica 2018

Noctilucent clouds blanket Antarctica

NASA's AIM spacecraft is monitoring a 4 800-km wide (3000 miles) ring of noctilucent clouds circling high above Antarctica. The 2018 southern hemisphere noctilucent season began on November 21, said Cora Randall, a member of the AIM science team at the...

December 26, 2018

elve over russia on august 16 2018 by ilya jankowsky

Huge ELVE captured high above a thunderstorm over Russia

A 300 km (186 miles) wide ELVE was photographed hight above a thunderstorm in central Russia on August 16, 2018. This transient luminous event was recorded using a low-light video camera in the Russian town of Irbit, Sverdlovsk Oblast, by amateur astronomer Ilya...

August 19, 2018