Clouds

noctilucent clouds july 5 2020 budapest hungary by viktor veres f

Major noctilucent clouds outbreak over Europe

Observers across Europe, from Scandinavia to the Adriatic coast, are reporting major noctilucent clouds (NLC) outbreak on July 5 and 6, 2020. The outbreak comes on the heels of July 4th sighting over southern California, U.S. -- where in 2019 a record was set for...

July 06, 2020

nlcs june 10 2020 2

Record cold in mesosphere causes noctilucent clouds to spill out of Arctic into mid-latitudes

Temperatures at the mesosphere have been breaking 14-year records over the past few days, according to Lynn Harvey of the University of Colorado Laboratory for Atmospheric and Space Physics. This causes noctilucent clouds to spill across the Arctic and descend to...

June 11, 2020

nlc season 2020 first cloud spotted may 17 2020 f

Early start of the 2020 noctilucent cloud (NLC) season

The Northern Hemisphere noctilucent cloud (NLC) season has officially begun. The first cloud was detected by NASA's AIM spacecraft inside the Arctic Circle on May 17. The detection marks one of the earliest starts in the 14-year history of the spacecraft. ...

May 23, 2020

nlc night lights films adrien mauduit f

2020 northern hemisphere NLC season forecast

Public interest for noctilucent clouds rose sharply in 2019 after record-setting outbreak across the northern hemisphere. The 2020 season is expected to start mid- to late-May or early June, but at the moment, it doesn't seem like 2020 will be a repeat of 2019....

May 11, 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

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

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

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

noctilucent clouds august 1 2018 by rauno pakarinen finland

Unexpected surge of water vapor in the mesosphere, prolonged noctilucent clouds season

During the first half of August 2018, reports of noctilucent clouds to Spaceweather.com have tripled compared to the same period in 2017 and researchers at the University of Colorado may have figured out why. "There has been an unexpected surge of water vapor...

August 16, 2018

nlc over scotlant may 31 2018

Northern hemisphere's 2018 noctilucent clouds season begins

NASA's AIM spacecraft has spotted first Noctilucent Clouds (NLCs) of the 2018 northern hemisphere NLC season at the end of May. And just as they spotted them forming, people on the ground started seeing them, too. "They are back!" Ruslan Merzlyakov...

June 02, 2018

noctilucent clouds 2017 season

After delayed start, magnificent noctilucent clouds are back in full effect

Following a delayed start to the northern hemisphere's 2017 Noctilucent clouds season, the magnificent, electric-blue clouds are now back in full effect. Noctilucent, or night-shining, clouds are a seasonal phenomenon, occurring most often in late spring and...

July 04, 2017

adrien mauduit 2017 noctilucent cloud chasing season teaser

2017 Noctilucent cloud chasing season teaser - 4K (UHD) time-lapse, Denmark

As the Earth continues its path on its elliptical orbit around the Sun, high latitudes and higher mid-latitudes of the northern hemisphere are entering the midnight Sun season. If you go too far up north, the Sun never sets, but at a lower latitude, like southern...

May 04, 2017

new clouds added to international cloud atlas

After 30 years, new cloud types added to Cloud Atlas

Celebrating the World Meteorological Day on March 23, the World Meteorological Organization (WMO) has released its new, long-awaited, digitized International Cloud Atlas. The atlas is global reference for observing and identifying clouds, which are an essential part...

March 23, 2017

polar stratospheric clouds sweden december featured

Polar Stratospheric Clouds form over Sweden

Polar stratospheric clouds, reported on December 9, 2016, over the skies of Kiruna, Sweden, indicate the stratosphere above the Arctic Circle is getting very cold. Polar stratospheric clouds (PSCs) form from the icy particles in the lower stratosphere, in extremely...

December 15, 2016

2016 17 southern hemisphere noctilucent clouds season starts early

Record early start of southern hemisphere NLC season

The southern hemisphere noctilucent clouds (NLC) season has started early this year and tied with 2013 for the earliest southern hemisphere season on record. The 2016/17 southern hemisphere noctilucent clouds season started on November 17 and tied with 2013 for the...

November 28, 2016