00:02Get ready for another stretch of dangerous heat.
00:05Millions of Americans are under heat alerts as a heat dome settles over the western and central United States.
00:12The National Weather Service says this is the first widespread significant heat wave of the summer
00:18for parts of the Mountain West, Northern Plains and Upper Great Lakes.
00:21The hottest conditions are expected through Tuesday, with some communities forecast to reach 110 degrees or higher.
00:29Forecasters say those locations could see temperatures that are exceptionally rare for mid-July
00:34and may even set all-time record highs.
00:37For instance, International Falls, Minnesota, known for its bitter cold, could hit 100 for the first time since 1923.
00:46Health experts are also warning that last month's cooler-than-normal weather
00:49may have left many people less prepared for this kind of heat, increasing the risk of heat-related illness.
00:55They're urging people to limit time outdoors, stay in air-conditioned spaces when possible, and drink plenty of water.
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