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Heat advisory issued for Fresno, Merced areas. How long will triple-digit temps last?

The City of Fresno’s parks department is teaming up with Fresno Unified to offer a series of lessons at pools around the city for children ages three and up
The City of Fresno’s parks department is teaming up with Fresno Unified to offer a series of lessons at pools around the city for children ages three and up

Sorry, Fresno. The Central Valley is in for more scorching heat, according to the National Weather Service,

The weather service recently issued a heat advisory for most of San Joaquin Valley and the Sierra Nevada foothills via X on Tuesday, Sept. 3.

The high temperature could exceed 105 degrees in “selected locations,” the agency said.

However, the extreme heat won’t stick around for long.

“A cooling trend will take place over the weekend,” the weather service said. “Temperatures are expected to cool down to near normal by next Tuesday.”

Here’s what you need to know.

Fresno had two runs at breaking its hot-weather temperature record in July 2024, but a “rounding error” saved that century-old mark from toppling. More hot weather is forecast for Wednesday, Sept. 4, 2024.
Fresno had two runs at breaking its hot-weather temperature record in July 2024, but a “rounding error” saved that century-old mark from toppling. More hot weather is forecast for Wednesday, Sept. 4, 2024. Larry Valenzuela The Fresno Bee

How long will heat advisory last in Fresno? Merced?

According to the National Weather Service, the heat advisory will be in effect from 11 a.m. Wednesday, Sept. 4, to 10 p.m. Friday, Sept. 6.

During that time, the agency is forecasting high temperatures of “100 to over 105 degrees” with warm overnight lows around 70 degrees.

Affected areas include the cities of Fresno and Merced, as well as Bakersfield, Hanford, Tulare and Visalia.

“Hot temperatures with little overnight relief may cause heat illnesses,” the agency said.

Casandra Maravilla, of Merced, floats with her nephew Joaquin Souza on her back at Lake Yosemite in Merced on a hot day in June 2017.
Casandra Maravilla, of Merced, floats with her nephew Joaquin Souza on her back at Lake Yosemite in Merced on a hot day in June 2017. Andrew Kuhn akuhn@mercedsun-star.com

How to stay safe during hot weather

The National Weather Service shared some tips for staying safe during hot weather.

They include:

  • Drink plenty of fluids.

  • Stay in an air-conditioned room.
  • Stay out of the sun.
  • Check up on relatives and neighbors.
  • Take extra precautions when outside.
  • Wear lightweight and loose-fitting clothing.
  • Try to limit strenuous activities to the early morning or evening.
  • Look out for symptoms of heat exhaustion and heat stroke.

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This story was originally published September 3, 2024 at 2:09 PM.

Fernanda Galan
The Fresno Bee
Fernanda Galan covers Central Valley and California news as The Fresno Bee’s service journalism reporter. Before joining The Bee in 2024, she reported in Milwaukee, Arizona and Los Angeles. She is a graduate of Arizona State’s Walter Cronkite School of Journalism and Mass Communication.
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