Sahara snow has fallen once again in the Sahara Desert. The snowfall centered on the Algerian town of Aïn Séfra, located at the foot of the Atlas Mountains. Meteorologists attribute the phenomenon to a harsh collision between cold European cyclones and moist Mediterranean air. As temperatures plummeted below freezing, the arid desert was briefly transformed into a snow-covered landscape.
Sahara Snow Mechanics: How It Forms in Deserts
Snow in the Sahara is an exceptional physical phenomenon. While desert temperatures regularly drop to freezing at night, precipitation rarely forms due to a critical lack of moisture. A perfect meteorological combination is required for snow to appear on the scorching sand. This time, the following occurred:
- Arctic cold intrusion. Icy air masses from Europe pushed uncharacteristically far south into the African continent.
- Mediterranean moisture. The cold front captured moisture-saturated air over the sea and pulled it inland.
- Orographic lift. Upon hitting the Atlas Mountains, the airflow rose sharply, cooled intensely, and released its moisture as snow right at the desert’s edge.
Sahara Snow: A Fleeting Natural Contrast
Seeing the snow-capped dunes of the Sahara in person is a rare stroke of luck for researchers and photographers. As soon as the cold front retreats, the African sun rapidly returns temperatures to the seasonal norm. The sand heats up quickly, destroying the thin snow cover within hours. Nevertheless, the increasing frequency of such anomalies since 2016 has prompted scientists to more closely study shifts in global atmospheric processes.
NEWSROOM IN notes that the first officially recorded instance of snowfall in the Sahara occurred in February 1979. At that time, a snowstorm in the Aïn Séfra area lasted about 30 minutes. According to observations, snow has fallen in this region only about seven times over the last four decades.
