Symptom: Dry, itchy skin. Photo by Fuse/Getty Images. What it might mean: It's probably winter itch, skin dryness that's a result of cold, dry air. Using a humidifier, avoiding super hot showers, and routinely slathering on a thick moisturizer will help keep skin supple.
But Death Valley is affected by several of the main causes of heat waves - the frequent presence of a high pressure system (helped by its below sea level elevation), downslope air movement from surrounding mountains, and radiation of heat from the surrounding cliffs.
The sun cause wind, and the wind causes waves..  The sun causes wind because as the sun shines down on Earth, it warms the surface and so our air warms up as well. Some part â¦ s of the world get direct rays from the sun all year round and are always warm.