Michael Hanson\/AFP via Getty Images, FILE<\/span><\/p>\n The temperatures could increase the risk of heat-related illnesses, especially since most homes in the region are not equipped with central air conditioning.<\/p>\n High temperatures increase further on the coast. Fresno, Calif., is forecast to approach 100 degrees on Sunday, with highs of 95 to 100 degrees for at least the next five days.<\/p>\n About 12 million people are under heat warnings along the West Coast.<\/p>\n The most extreme heat is a indicator of climate change caused by man<\/a>according to scientists.<\/p>\n West Coast Heat Wave Weather Map for May 14 and 15, 2023.<\/span><\/span><\/span><\/p>\n ABC News<\/span><\/p>\n Extreme heat is the deadliest natural hazard in the US<\/p>\n More than 230 U.S. locations have seen the annual number of minimum-death hot days, temperatures at which health risks also begin to rise, 21 more days on average since 1970, according to an analysis by Central Climate<\/a>.<\/p>\n While the South and Southeast tend to be the riskiest hot spots, increases in days above the minimum local mortality temperature were seen in all regions of the US, according to Climate Central.<\/p>\n ABC News’ Tracy Wholf contributed to this report.<\/p>\n![\"PHOTO:](\"https:\/\/s.abcnews.com\/images\/US\/weather-heat-wave-map-abc-lv-230514_1684079768194_hpEmbed_16x9_992.jpg\" "\\"\\"")
<\/p>\n