BREAKING NEWS Jury returns guilty verdict in trial of man accused of killing St. Joseph airman Full Story
STREAMING NOW: Watch Now
CLOSINGS: View Closings

Why California's mudslides are so devastating

Southern Californians just can't get a break from nature. First, wildfires scorched a massive area northwest of Los A...

Posted: Jan 10, 2018 3:33 PM
Updated: Jan 10, 2018 3:33 PM

Southern Californians just can't get a break from nature. First, wildfires scorched a massive area northwest of Los Angeles. Now catastrophic mudslides have swallowed homes and killed at least 15 people.

But a variety of unique factors have made this latest destruction especially calamitous.

Wildfires just torched the area

Last month the sprawling Thomas Fire destroyed more than 282,000 acres -- the equivalent of more than Dallas and Miami combined.

That means vegetation that would normally be able to soak up floodwater no longer exists.

"All these hills normally have a protective cover of chaparral," said Tom Fayram, Santa Barbara's deputy director of public works. "That's all gone. Almost 100% gone."

Given the circumstances, it takes hardly any rain to produce a mudslide.

"About a half an inch per hour can start to produce issues, mudslides," Robbie Monroe of the National Weather Service's Oxnard office told CNN.

Its geology means rockslides, too

In the foothills of Montecito, east of Santa Barbara, the soil just sits on rock -- "all rock," resident Dave Peterson said.

"When that soil gets wet, it just slides off the rock," Peterson said. "It's a treacherous situation."

Images of boulders crashing downhill proved Peterson's point.

The elevation drops off sharply

"In these mountains, we go from 3,000 feet to sea level in sometimes just four or five miles," Fayram said.

That means mudslides and rockslides happen quickly -- and with great intensity.

Ben Hyatt of Montecito said his house was engulfed in a flash.

"Mud came in an instant, like a dam breaking," he said. "(It) surrounded the house, 2 to 3 feet."

Drought has exacerbated the problem

California has suffered from years of drought. Ironically, the rain currently deluging the area is actually needed to grow the vegetation that helps prevent mudslides.

"We're kind of damned if we do and if we don't get rain," Fayram said. "We need the rain, but we don't need a serious debris-flow problem, either."

Pamela Ueckert of Ventura said the disasters tormenting Southern California have been unbearable.

"It's just too much to handle after everything that's happened," she said. "I just feel bad for people who lost their homes ... They shouldn't have to handle any more."

St. Joseph
Partly Cloudy
72° wxIcon
Hi: 82° Lo: 68°
Feels Like: 72°
Maryville
Clear
73° wxIcon
Hi: 84° Lo: 68°
Feels Like: 73°
Savannah
Partly Cloudy
72° wxIcon
Hi: 83° Lo: 67°
Feels Like: 72°
Cameron
Cloudy
74° wxIcon
Hi: 82° Lo: 67°
Feels Like: 74°
Atchison
Clear
78° wxIcon
Hi: 87° Lo: 68°
Feels Like: 80°
Temperatures will be warming up slightly every day as we head into the weekend, with today's high temperatures in the upper 80s. There is a chance for pop-up isolated showers this afternoon, although these will likely be infrequent and short-lived. Tonight will be cool and calm with lows in the upper 60s and light winds. Mostly dry and sunny conditions continue into the weekend as temperatures start to warm up again. Highs look to start to climb into the 90s Friday, with the heat continuing into next week.
KQTV Radar
KQTV Temperatures
KQTV Alerts

Community Events