In a heat emergency, which skin sign indicates the need for rapid transport?

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Hot and dry skin signals heat stroke, a life-threatening heat emergency where the body's cooling system has failed and sweating may stop. This combination indicates a severe condition that requires rapid transport to a facility for advanced cooling and care. In contrast, cold and clammy skin points to shock or other problems, normal skin isn’t a warning sign, and pale and dry can suggest dehydration but doesn’t carry the same immediacy as heat stroke’s hot, dry skin.