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A view of lakes caused by heavy rainfall between sand dunes in the desert town of Merzouga, near Rachidia, southeastern Morocco on October 2, 2024.
Satellite images released by NASA show pockets of plant life popping up all over the Sahara Desert after an extratropical cyclone drenched a large swath of northwestern Africa on Sept. 7 and Sept. 8.
The Sahara (/ s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /) is a desert spanning across North Africa.With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The terrain shows stark evidence of long-ago water erosion when the Sahara Desert's climate was much wetter, but the present annual rainfall is much less than 20 mm. Today the terrain is being shaped by wind erosion, which occurs much faster than in other areas, since there is little or no vegetation to hold the surface in place. [ 3 ]
It covers an area of 3,053,200 square kilometers (1,178,850 sq mi). Representing a climatic and ecological transition zone with hot semi-desert and steppe conditions, the Sahel region borders the more humid Sudanian savannas to its south and the dry Sahara desert to the north.
Dust from what meteorologists call the Saharan Air Layer is on track to reach Florida this weekend, bringing hot and dry weather to the Tampa Bay area. Floridians may remember similar dust clouds ...
The Sahara Desert features a hot desert climate (Köppen climate classification BWh).The Sahara Desert is one of the driest and hottest regions of the world, with a mean temperature sometimes over 30 °C (86 °F) and the average high temperatures in summer are over 40 °C (104 °F) for months at a time, and can even soar to 47 °C (117 °F).
On Jan. 7, the Sahara desert witnessed an extremely rare snowstorm — just the third of its kind in 37 years — breaking a long snow drought in Algeria.