Heat and cold extremes are expected this week in the U.S. Officials warned Southwest residents to take precautions as a heat wave moves east, while heavy rains and flooding could drench the Gulf states and snow threatens parts of the Rockies and Northwest.
Extreme heat spread across Arizona, New Mexico and parts of Texas, Colorado and Kansas as severe weather swept across many parts of the U.S. on Sunday. There was unseasonable cold in the Pacific Northwest, snow headed to the northern Rocky Mountains and heavy rainfall forecast from the northern Plains to the Upper Midwest.
