Kay will still be about 220 miles south of San Diego on Friday, according to the National Weather Service in Los Angeles, but the flow around the storm will bring easterly winds to the area, which could bring extreme heat into the beaches. .
The San Diego Weather Service extended the excessive heat warning for the region through Friday to account for the possibility of high temperatures in the 90s to 100s reaching the coast.
California faces ‘new normal’ as West sets new temperature records
The man-made climate crisis is amplifying extreme weather in California, climate and weather experts told CNN, pushing temperatures to unprecedented levels this month.
And the ongoing heat wave could, in fact, be one of the worst on record for a month, not just in September, UCLA climatologist Daniel Swain said Tuesday in a Twitter Spaces chat. .
“It’s going to be essentially the worst September heat wave on record, certainly in Northern California and arguably for the state as a whole,” Swain said. “By some metrics, this could be one of the worst heat waves on record, period, in a month, given its extreme duration and magnitude, particularly in Northern California. and especially in the Sacramento area.”
Jan Null, California meteorologist and owner of Golden Gate Weather Services, pointed to San Jose, which hit 109 degrees on Tuesday, breaking an all-time record high temperature. Nine of the city’s 10 hottest days have occurred in the 21st century, he said – a sign that the climate crisis is stoking extreme heat. “And all the modeling shows that we’re going to see more frequent heat waves and longer heat waves,” Null said.
“In a way,” he said, “it’s the new normal.”
Greenhouse gas emissions from human activities have warmed the planet by around 1.2 Celsius since pre-industrial times and this warmer benchmark means that higher temperatures can be reached during extreme heat events, according to scientists.
Numerous heat records have been set across the West, according to the weather service.
San Francisco airport reached 97 degrees on Monday, breaking a daily record. Salinas hit 103 degrees, breaking the previous record of 92 degrees set in 2004. Livermore hit a record 116.
Salt Lake City hit 104 on Monday, the hottest September day on record and also the 32nd day this year with temperatures hitting at least 100 degrees, breaking the previous record by 11 days.
Temperatures in Billings, Montana hit 100 degrees on Monday, tying a previous record high. It was the first time Billings had hit 100 degrees twice in the same September.
Wildfires ignited across the West
Hot, dry conditions also mean fires spread faster, rage more intensely and burn longer.
Several destructive wildfires have erupted over the past week, killing at least four people in two California blazes that have also scorched homes and thousands of acres of land.
The fires, burning simultaneously in parched and drought-stricken land, have choked the hot atmosphere with smoke, bringing unhealthy air quality to parts of the western states.
Thick smoke, billowing from many wildfires, is visible from space, according to images released by the National Oceanic and Atmospheric Administration
The fires also displaced thousands of residents as flames progressed over communities, cutting through dry vegetation and burning homes and cars.
CNN’s Taylor Romine contributed to this report.