[NASA] Dust Outbreak Reaches Europe

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3. Dust Outbreak Reaches Europe

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March 1–9, 2026

Winter winds lofted clouds of dust from the Sahara Desert, carrying it north toward the Mediterranean and dispersing it widely across Europe in March 2026. When the dust combined with moisture-laden weather systems, a dirty rain fell in parts of Spain, France, and the United Kingdom.

This animation highlights the concentration and movement of dust throughout the region from March 1 to March 9. It depicts dust column mass density—a measure of the amount of dust contained in a column of air—produced with a version of the 

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 (Goddard Earth Observing System) model. The model integrates satellite data with mathematical equations that represent physical processes in the atmosphere.

The animation shows dust plumes originating in northwestern Africa being blown both to the west across the Atlantic Ocean and north toward the Mediterranean. As plumes spread throughout Western Europe over several days, people observed hazy skies from southern England, where sunrises and sunsets took on an

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, to the Alps in Switzerland and Italy, where a dust layer

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.

Not all of the dust remained aloft. Storms encountered some of the dust, causing particles to fall to the ground with rain and coat surfaces with a brownish residue. A low-pressure system, named Storm ******* by Portugal’s weather service, moved across the Iberian Peninsula and brought so-called

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to southern and eastern

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, along with parts of France and the southern *** in early March, according to

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.

Over the Mediterranean, areas of “dusty cirrus” clouds developed higher in the atmosphere, where dust particles can act as condensation nuclei for ice crystals,

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, Switzerland’s Federal Office for Meteorology and Climatology. Scientists are

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to better understand their formation and how they affect weather, climate, and even solar power generation.

In a new analysis, researchers used NASA’s

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(Modern-Era Retrospective Analysis for Research and Applications, Version 2), observations from MODIS (Moderate Resolution Imaging Spectroradiometer), and other satellite products to parse the effect of airborne Saharan dust on solar power in Hungary. They found that

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to 46 percent on high-dust days, compared with 75 percent or more on low-dust days. They determined the greatest losses occurred because dust enhanced the presence and reflectance of cirrus clouds and reduced the amount of radiation that reached solar panels.

Some research suggests more frequent and intense

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have affected Europe in

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. Researchers have proposed several factors contributing to these outbreaks, including

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in northwestern Africa and weather patterns more often driving winds north from the Sahara.

NASA Earth Observatory animation by Lauren Dauphin, using

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data from the

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at NASA GSFC. Story by Lindsey Doermann.

References & Resources

• Barcelona Dust Regional Center (2026, March)
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  . Accessed March 11, 2026.
• FOX Weather (2026, March 9)
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  . Accessed March 11, 2026.
• IQAir (2026, March 6)
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  . Accessed March 11, 2026.
• Met Office (2026, March 4)
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  Accessed March 11, 2026.
• MeteoSwiss (2026, March 4)
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  . Accessed March 11, 2026.
• NASA Earth Observatory (2022, March 31)
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  . Accessed March 11, 2026.
• NASA Earthdata (2026)
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  . Accessed March 11, 2026.
• Seifert, A., et al. (2023)
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  . Atmospheric Chemistry and Physics, 23, 6409–6430.
• Varga, G., et al. (2026)
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  . Solar Energy, 307.

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