Millions in the Western US face heat watches and warnings as a dangerous heat wave increases fire risk amid dry conditions. Parts of California, Oregon and Washington will experience extreme heat through Tuesday with temperatures exceeding 100 degrees. Southern Arizona will see temperatures reaching 110 degrees or higher, with Phoenix overnight lows only dipping into the 90s. Little nighttime cooling will elevate the risk of heat illness, especially without air conditioning. Officials advise staying in air-conditioned spaces, seeking shade, drinking cool water, and checking on vulnerable people, pets, and livestock. Dry conditions and ongoing wildfires are expected to worsen fire spread risks.
Millions in the West are facing heat watches and warnings as a dangerous heat wave grips the region, increasing fire risks amid dry conditions. Parts of California, Oregon and Washington state will experience "extreme heat" at least through Tuesday, with temperatures reaching over 100 degrees, according to the National Weather Service (NWS). "For many areas there will be little nighttime relief from the extreme heat, with overnight lows remaining well above normal. Numerous nighttime temperature records are likely," the NWS said in an advisory on Sunday.
Portions of southern Arizona are also under extreme heat warnings, with temperatures reaching 110 degrees or higher on Sunday. Overnight temperatures in the Phoenix metro area will only dip to the 90s, the NWS Phoenix office said. And "very hot temperatures" will remain in the area through at least Monday. Extreme heat is not only dangerous during the day but also at night when temperatures don't cool down, the NWS said.
"Without A/C or cooling, the body can't recover, increasing the risk of heat illness," the agency warned. Officials are warning those in areas under extreme heat warnings to stay in air conditioned places or find shade and drink plenty of cool water. "Check the weather before heading out," the Oregon Department of Emergency Management said in a social media post. "Check on kids, older adults, pets, and livestock." The dangerous heat in the West is also coinciding with dry conditions, elevating fire risks that can allow for "any fires to quickly spread," the NWS also said.
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