An already dangerous weekslong heat wave will only worsen this weekend as a heat dome intensifies and reaches peak strength over parts of the Western United States.
The heat dome is so formidable the National Weather Service in Phoenix called it “one of the strongest high pressure systems this region has ever seen.” Around 100 heat records could fall today through the weekend as it intensifies, piling onto the more than 1,000 high temperature records broken in the US since June.
More than 90 million people are under heat alerts after the heat dome expanded into places like California, which is now experiencing its first extreme heat wave of the year.
It has already been dangerously hot for weeks in Texas, Florida and Arizona, where Phoenix is in the middle of a likely record-breaking streak of consecutive 110-degree days. The low temperature in Phoenix might not drop below 90 degrees for eight consecutive days, another record.
Read more at CNN.com
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