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Power lines downed by Hurricane Ida are seen in Houma, Louisiana, on Aug. 30. Photo: Nick Wagner/Xinhua via Getty Images

The National Weather Service has issued a heat advisory for New Orleans, Baton Rouge and Houma, Louisiana, to Gulfport, Mississippi, as residents swelter in the wake of Hurricane Ida. The storm knocked out electricity to power air conditioning.

Why it matters: Heat tends to be the top weather-related killer annually in the U.S., and prolonged exposure to hot temperatures without any relief — either from air conditioning or cooler temperatures at night — significantly raises the risks of heat-related illness.

Details: The heat advisory covers both Tuesday and Wednesday across a broad region.

  • The Weather Service lowered its criteria for such an advisory to take into account the fact that more than 1 million households are still without power in Louisiana alone.
  • Heat index values of up to 105 degrees are forecast for Tuesday, while slightly hotter conditions of up to 106 are expected on Wednesday, the Weather Service said.

What they're saying: "Drink plenty of fluids, stay out of the sun, and check up on relatives and neighbors," the NWS said.

  • "Be very cognizant of your hydration levels and take plenty of breaks. The absence of some basic services amid high heat indices can make the situation very acute for areas challenged by power outages."

Threat level: It will take several weeks to months to restore power to the entire region, leaving the area vulnerable to more hot weather days.

Go deeper

Oct 12, 2021 - Science

Weather and climate disasters have cost the U.S. over $100 billion in 2021

Piles of debris is all that's left of a restaurant after heavy rain from remnants of Hurricane Ida came through in Manville, New Jersey, on Sept. 7. Photo: Tayfun Coskun/Anadolu Agency via Getty Images

Weather and climate disasters in 2021 have killed 538 people in the U.S. and cost over $100 billion, according to a report from the National Oceanic and Atmospheric Administration.

Why it matters: The first nine months of 2021 saw the largest number of billion-dollar disasters in a calendar year so far, with 2021 on pace for second behind 2020, per the report.

Ben Geman, author of Generate
7 hours ago - Energy & Environment

Key clean power provision likely won't survive in Dems' spending bill

A construction worker walks along a dirt road at the Avangrid Renewables La Joya wind farm in Encino, New Mexico, on Aug. 5, 2020. Photo: Cate Dingley/Bloomberg via Getty Images

A pillar of Democrats' plans to speed deployment of zero-carbon electricity is likely to be cut from major spending and tax legislation they are struggling to move on a party-line vote, per multiple reports and a Capitol Hill aide.

Driving the news: The New York Times, citing anonymous congressional aides and lobbyists, reports that West Virginia Sen. Joe Manchin (D) has told the White House he "strongly opposes" the Clean Electricity Performance Program.

Updated 10 hours ago - World

Fatal stabbing of British MP David Amess declared a terrorist incident

Police outside Belfairs Methodist Church in Leigh-on-Sea, England, on Oct. 15. Photo: John Keeble/Getty Images

Authorities have declared the death of David Amess a terrorist incident, hours after the Conservative Party lawmaker in the U.K. was fatally stabbed while meeting with local constituents in a church in eastern England on Friday.

The big picture: The Metropolitan Police has found "a potential motivation linked to Islamist extremism."