A large air mass carrying dust from the Sahara Desert is currently moving northward toward Europe, a phenomenon that meteorologists monitor several times each year.
Known as a Saharan dust intrusion, this atmospheric event occurs when strong winds lift massive quantities of desert sand and dust high into the atmosphere and transport them across the Mediterranean.
In the coming days, parts of Southern and Central Europe are expected to experience hazy skies, warmer temperatures, and a noticeable layer of fine dust in the air.
Which Countries Could Be Affected?
Meteorological models indicate that the dust plume will first reach Spain, Portugal, and parts of southern France, before spreading toward Italy, the Balkans, Greece, and Central Europe.
Countries such as Germany, Austria, Hungary, Croatia, and Bulgaria may also experience elevated concentrations of Saharan dust, although the intensity typically weakens the farther north the air mass travels.
These dust intrusions often move together with warm air flowing northward from North Africa. As a result, temperatures across affected regions may rise above seasonal averages.
Saharan Air Masses Bring Warmer Temperatures
Saharan air masses often bring a noticeable warm spell. During the event, daytime temperatures in southern Europe could climb to around 28-32°C (82-90°F), particularly in Spain, Italy, and Greece.
In parts of Central Europe and the Balkans, temperatures may reach 22-27°C (72-81°F) depending on local conditions.
The dust itself can also contribute to warmer nighttime temperatures because the particles in the atmosphere help trap heat, somewhat like thin cloud cover.
What Will People Notice?
Residents in affected areas may observe hazy or milky skies, sometimes turning sunsets deep orange or red, reduced visibility due to suspended dust particles, dust deposits on cars, windows, and outdoor surfaces, especially after rain, and slightly degraded air quality, particularly for people with respiratory sensitivities.
When rain falls during such events, it may produce what is often called “mud rain”, leaving thin brownish stains on surfaces.
What Causes Saharan Dust Storms?
Saharan dust storms originate in the Sahara Desert, the largest hot desert on Earth, which covers much of North Africa.
The desert’s vast dry soil and sand are easily lifted into the atmosphere when strong winds sweep across the region.
These winds are typically generated by large-scale atmospheric pressure systems, particularly when powerful low-pressure systems form over the Atlantic or Mediterranean.
The pressure difference accelerates surface winds over North Africa, lifting fine dust particles several kilometers into the atmosphere.
Once airborne, the particles can remain suspended for days and travel thousands of kilometers thanks to powerful high-altitude winds.
How Does the Dust Reach Europe?
The dust is often transported northward by southerly winds ahead of weather fronts moving across the Mediterranean. Warm air masses rising from North Africa carry the dust across the sea and into Europe.
Satellite imagery from organizations such as NASA and the European Space Agency (ESA) regularly tracks these massive plumes as they move across continents and oceans.
In some cases, Saharan dust even travels across the Atlantic Ocean to the Caribbean and the Americas.
Are These Events Common in Europe?
Saharan dust intrusions are not unusual in Europe, particularly in spring and early summer. Southern European countries experience them several times each year, while Central Europe may see only a few significant events annually.
In recent decades, meteorologists have observed that dust transport events may be becoming more frequent or intense, partly linked to changing climate patterns and shifting atmospheric circulation.
Despite the dramatic appearance of dusty skies, most events are temporary and typically pass within one to three days as weather systems move across the continent.
Sources:
Copernicus Atmosphere Monitoring Service (CAMS);
European Space Agency (ESA);
NASA Earth Observatory;
World Meteorological Organization (WMO);
Spanish Meteorological Agency (AEMET).
