With our free press under threat and federal funding for public media gone, your support matters more than ever. Help keep the LAist newsroom strong, become a monthly member or increase your support today.
Extremely High Temps Could Be Recipe For — Gulp — A Fire Cloud

Southern California's inland valleys, mountains and deserts can expect elevated fire weather conditions Saturday through Wednesday, with high temperatures and relatively low humidity.
National Weather Service meteorologist David Sweet says there's also potential for what's called "large plume growth." That can happen when a fire starts in a really hot atmosphere, and a super-heated column of air allows a fire cloud, known as a pyrocumulus cloud, to form.
Here's Sweet explaining what that looks like:
"There's a column of very warm to hot air that is rising up from the fire and if that does happen then it causes the fire to grow very very quickly because it can create its own weather, it can create its own wind."
Here's one forming during the 2018 Cranston Fire in the San Bernardino National Forest near Idyllwild:
When this happens, the cloud can generate lightning that could spark additional fires, and it also pushes embers far outside of the burn area, creating even more issues.
This is why we wrote a story in 2018 called: Fire Clouds Are As Terrifying As They Sound.
An excessive heat watch is in effect for the Santa Clarita Valley, Antelope Valley, and inland mountains from Sunday morning through Monday evening. Temperatures could get as high as 110 degrees during the day and likely won't cool down below 80 degrees in the evening.
Interior Regions, including the Santa Clarita Valley, Antelope Valley, inland mountains, & inland valleys of San Luis Obispo, Ventura and Santa Barbara Co. An Excessive Heat Watch is in effect from Sunday AM to Monday PM. Plan ahead & avoid outdoor activities if possible. #socal pic.twitter.com/W5hi6XeXET
— NWS Los Angeles (@NWSLosAngeles) June 24, 2021
At LAist, we believe in journalism without censorship and the right of a free press to speak truth to those in power. Our hard-hitting watchdog reporting on local government, climate, and the ongoing housing and homelessness crisis is trustworthy, independent and freely accessible to everyone thanks to the support of readers like you.
But the game has changed: Congress voted to eliminate funding for public media across the country. Here at LAist that means a loss of $1.7 million in our budget every year. We want to assure you that despite growing threats to free press and free speech, LAist will remain a voice you know and trust. Speaking frankly, the amount of reader support we receive will help determine how strong of a newsroom we are going forward to cover the important news in our community.
We’re asking you to stand up for independent reporting that will not be silenced. With more individuals like you supporting this public service, we can continue to provide essential coverage for Southern Californians that you can’t find anywhere else. Become a monthly member today to help sustain this mission.
Thank you for your generous support and belief in the value of independent news.

-
What do stairs have to do with California’s housing crisis? More than you might think, says this Culver City councilmember.
-
Yes, it's controversial, but let me explain.
-
Doctors say administrator directives allow immigration agents to interfere in medical decisions and compromise medical care.
-
The Palisades Fire erupted on Jan. 7 and went on to kill 12 people and destroy more than 6,800 homes and buildings.
-
People moving to Los Angeles are regularly baffled by the region’s refrigerator-less apartments. They’ll soon be a thing of the past.
-
Experts say students shouldn't readily forgo federal aid. But a California-only program may be a good alternative in some cases.