Flooding in Riyadh? "Storms rage across the Arabian Peninsula"

[kestrel91316]

3. Actually the sand doesn't absorb water the way clay soils do.

The much coarser sand particles allow the water to filter right through to soils below, or aquifers, or if it hits bedrock then it just flows down and out to a lower surface.

Clay holds onto water much more effectively because of the fineness of its particles.

When I had my garden, in this heavy clay soil, the ground stayed a mucky, wet mess for days after a rain. Sand dries out almost immediately.