Cal ISO issues Flex alert for Thursday as temperatures soar – CBS San Francisco

SAN FRANCISCO (CBS SF) – A weather system stranded over the southwest began sending excessive heat waves across northern California on Wednesday, leading Cal ISO to issue a Flex alert for Thursday starting at 5 p.m.

Cal ISO’s Twitter account posted the Flex Alert on Wednesday afternoon.

The Flex Alert recommends voluntary retention between 5 p.m. and 10 p.m. on Thursdays to relieve stress on the network. Residents can visit to learn about conservation measures.

The independent California system operator earlier issued a heat bulletin, warning that the statewide heat wave would test the power grid.

“An unusually strong heat peak is expected to bring temperatures of up to 115 degrees inside California, which could last until the weekend. Due to the extreme heat and nocturnal troughs that are only expected to cool between 78 and 83 degrees, the state power grid will strive to meet evening demand when air conditioners are heavily used and production drains. ‘solar power will decline,’ the agency said in a statement. declaration.

Cal ISO said its own projections show demand may exceed available supply for several days this week, with the biggest shortfall expected between 8 p.m. and 9 p.m. on Thursday.

Residents are encouraged to pre-cool their homes, use major appliances, close window coverings, and recharge electric appliances and vehicles beforehand.

Over the next 72 hours, temperatures will reach 100 degrees up to 107 in Bay Area communities inland from the coast. Further east, it will be even more sweltering with temperatures reaching record highs of 110 degrees or more in the Sacramento Valley.

The National Weather Service issued an excessive heat warning from 11 a.m. Thursday to 9 p.m. Friday for cities that include Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg and San Ramon.

“Temperatures will rise on Wednesday, with the hottest day of the week Thursday,” weather forecasters warned. “Although temperatures cool slightly near the coast on Friday, they will still be warm in the interior.”

READ ALSO : Bay Area Cooling Centers Provide Heat Wave Relief

The Bay Area Air Quality Management District also issued a Spare the Air alert for Thursday due to expected excessive levels of smog.

The Air District is releasing a Spare the Air Day when weather conditions, such as the forecast of light winds and unusually warm temperatures on Thursday, combine with vehicle exhaust to produce an excessive amount of smog. Thursday will be the second Spare the Air alert of the season.

During Spare the Air days, drivers are encouraged to find alternatives to driving alone to get to work or other destinations in order to limit the number of vehicles on the road. Young children, the elderly, and those with respiratory and heart problems should also avoid prolonged exposure to smog, and outdoor exercise should only take place early in the morning when concentrations are lower, officials said. of the air district.

Hot, dry weather will continue to exacerbate local drought conditions. The San Francisco Bay Area is already in the throes of excessive drought, and the heat wave will only suck more moisture from the fire-prone and dry hills and forests and evaporate precious water from depleted reservoirs.

Health officials have urged local residents to take many precautions if possible, including:

  • Drink lots of fluids
  • Stay in an air-conditioned room
  • Stay out of the sun
  • Check out elderly parents and neighbors
  • Young children and pets should never be left unattended in vehicles
    under any circumstances.
  • If possible, reschedule strenuous activities early in the morning or
  • Know the signs and symptoms of heat exhaustion and heat stroke.
  • Wear light, loose clothing when possible.
  • To reduce the risks when working outdoors, the Occupational Safety and Health Administration recommends taking frequent breaks in shaded or air-conditioned environments.

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