Clouds

Noctilucent clouds in motion

On the night of June 21, 2016, photographer Derek Mellott from the town of Gibbons, Alberta, Canada recorded this fantastic display of noctilucent clouds (NLCs). "They were the brightest I have ever seen," he said. "It seemed like a good time to...

June 22, 2016

Cloud seeding flight suspected to aggravate major flooding in Tasmania

A cloud-seeding company Hydro Tasmania performed the seeding over the Derwent River watershed a day before the widespread flooding, caused by intense rainstorms, began on June 6, 2016. According to Premier Will Hodgman, the Energy Minister Matthew Groom is looking...

June 10, 2016

Expansion of tropics shifting high altitude clouds toward poles

NASA's research team conducted a study on 30-years of satellite data to reveal that a recorded trend of high altitude clouds in the mid-latitude which are shifting toward the poles is primarily caused by the expansion of the tropics. One of the most important...

May 06, 2016

Ozone hole behind colorful nacreous clouds over the UK and Ireland

Polar stratospheric clouds (PSCs) are appearing over the United Kingdom and Ireland since January 31, 2016. An extremely rare occurrence for this area, usually restricted to the Arctic Circle, has been photographed by numerous skywatchers. According to experts, the...

February 05, 2016

Nacreous clouds appear around the Arctic Circle

Sky watchers are observing an outbreak of polar stratospheric clouds or PSCs around the Arctic Circle, SpaceWeather reports. Unlike normal grey-white clouds, which hug Earth's surface at altitudes of only 5 to 10 km (3.1 - 6.2 miles), PSCs float through the...

December 17, 2015

Volcanoes cool the planet by releasing low-level sulfur to influence cloud formation

A new study, conducted by the University of Washington (UW) researchers used a huge volcanic eruption in Iceland, from the period between summer 2014 and early winter 2015, to explore how the sulfur emissions affects cloud's brightness. The results suggest the...

December 10, 2015

After Europe and Canada, noctilucent clouds expand to USA

The 2015 northern hemisphere noctilucent clouds season started on May 19, 2015 when NASA's AIM spacecraft spotted a patch of electric blue clouds over the Artactic Circle.Since then, noctilucent clouds (NLCs) have been moving south and, on June 8 - 9, they reached t

June 12, 2015

Possible outbreak of polar stratospheric clouds underway around the Arctic Circle

A possible outbreak of polar stratospheric clouds (PSCs) is underway around the Arctic Circle, SpaceWeather.com reports.Ivar Marthinusen sends this picture of the phenomenon taken on December 22, 2014 from Skedsmokorset, Norway:"Right after sunset, these clouds wer

December 23, 2014

How do active volcanoes change clouds?

NASA Goddard Space Flight Center scientist Andrew Sayer talks about how emissions from volcanoes can affect clouds. This video provides an overview of research published in the Journal of Atmospheric Chemistry and Physics. Research: Systematic satellite observations of

November 14, 2014

Rare fallstreak hole cloud observed over Melbourne, Australia

A rare fallstreak hole cloud was observed today over Melbourne, Australia, Meteo Europe team reports. Because of their rarity and unusual appearance, as well as very little exposure in media, fallstreak holes are often mistaken for or attributed to unidentified flying o

November 03, 2014

NRL reveals new meteorological insight into mid-level clouds

Research meteorologists at the U.S. Naval Research Laboratory (NRL) Marine Meteorology Division (MMD) and Scripps Institution of Oceanography, employing the Navy's Mid-Course Doppler Radar (MCR) at Cape Canaveral, were able to characterize mid-level, mixed-phase alt

July 22, 2014

Another outbreak of noctilucent clouds over Europe

The weekend of July 12 - 13 brought another outbreak of noctilucent clouds (NLCs) to Europe, SpaceWeather reports. Across the northern reaches of the continent, skies were criss-crossed by signature ripples of electric blue, like these photographed by Jaan Jalgrata

July 14, 2014

Noctilucent clouds outburst reported

Sky watchers in Europe are reporting an outburst of bright noctilucent clouds (NLCs). The display began at sunset on July 3rd, filling northern horizons with electric-blue ripples, swirls, and tendrils of light.Morten Ross sent this picture to SpaceWeather.com from

July 04, 2014

Noctilucent clouds sighted in Germany

For the second time in just a few days, noctilucent clouds (also known as NLCs) have been sighted in Germany, SpaceWeather reports. Although their northern season is just getting underway, researchers aren't sure why these early NLCs seem to favo

June 03, 2014

Noctilucent clouds season has begun in southern hemisphere

The season of noctilucent, "night-shining", clouds has begun in the southern hemisphere and NASA's AIM spacecraft is monitoring a vast bank of rippling electric-blue NLCs blanketing almost all of Antarctica. Noctilucent clouds

December 12, 2013

Unusually good season of Noctilucent Clouds ahead

Every summer, above the North pole, icy crystals begin to cling to the smoky remains of the meteors, forming hypnotic electric-blue clouds known as noctilucent clouds (NLC`s). These clouds are especially of interest to high latitude skywatchers, and around the Arctic

June 10, 2013

Dust across the Mediterranean Sea

A cloudbank stretched across the Mediterranean Sea from northern Algeria to southern France for the last few days. Saharan dust streaked the clouds, extending hundreds of kilometers from southeast to northwest. One especially noticeable dust plume passed over the

April 29, 2013