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.
What causes heat exhaustion? Heatârelated illness, such as heat exhaustion, occurs when your body canât keep itself cool. As the air temperature. rises, your body stays cool when your sweat evaporates. On hot, humid days, the evaporation of sweat is slowed. by the increased moisture in the air.