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SAN DIEGO (KGTV) — Several recent storms to hit the San Diego County region could spell disaster for erosion prone areas of the coast and inland valleys.Rainfall running over coastal bluffs with a history of erosion could increase the likelihood of future erosions along our shores. Adam Young, a scientist with Scripps Institution of Oceanography San Diego, says an active season already could led to more crumbling of local cliff sides following heavy showers."Pretty much whenever you have a new rainfall event, you'll pretty much see a new landslide ... The more rain we get, the more landslides," Young says. "Every time you have a failure, stress distribution can change."RELATED: Video: Bluff collapse halts train travel through Del MarAlong the coast, the potential is worsened by waves crashing against the coast. As waves erode the bottom of cliffs, rainfall running over the top can create more stress and instability, Young added."As long as waves are hitting the cliff, they're going to keep falling down," Young said. "At the beach, waves and rain work together to speed up the process."This month, Scripps researchers were surveying a Del Mar cliffside when a 55-foot-wide slab crumbled before their eyes — and on video."it's almost certain that landslide was caused by that rainfall," Young said refering to recent rains. "The state we're in now is because we had a bunch of rain. Any extra rain is a problem."RELATED: Researchers tracking crumbling Del Mar bluffsAt the beach, minerals in the cliff soak up water like a sponge, says San Diego State University Professor Emeritus Pat Abbott. Rainfall slowly moves through rocks, increasing the weight of the cliff and sapping its strength — until gravity takes over."That water is very slowly flowing through there," Abbott said of San Diego's coastal bluffs. "After the rain stops, several weeks later we'll be back to before the rain started. We're definitely not over."That's not to say inland bluffs aren't at risk. While rainfall helps speed up the process at the coast alongside waves, the risk remains further into the county as well.Inland, the minerals actually swell as it absorbs water, Abbott said, becoming heavy until, once again, gravity grabs hold.RELATED: Devastating 'ARk' storm envisioned for California by U.S. Geological Survey"When we go inland, we're talking about clay minerals. Think about a regular old book. If you took a paper book and dumped it in water, it would swell," Abbot said. "[Inland minerals] actually take the water inside their structure and swell ... they lose strength."Abbott pointed to San Diego's 1982-83 El Ni?o, which caused major destruction to inland communities as well as coastal communities."[There's a] high probability that these cliff collapses will continue at least through the rainy season," Abbott says. "We're getting to the place that it wouldn't be a surprise if we had inland landslides that affect homes." 2944

SAN DIEGO (KGTV) -- Steele Canyon High School is one of two evacuation sites run by the American Red Cross for people affected by the Valley Fire, but they're not housing people like they normally would. Instead, they're acting as a resource facility for families like the Roberts'."Mine was one of the only houses in the neighborhood that went up," Alana Roberts said. Her weekend was turned upside down when she got word of the Valley Fire, which went from 100 to more than 10,000 acres in less than 48 hours, claimed her home. "I was in Oceanside and we raced to get in and as soon as we were in our truck, cops said 'you need to go now'", Roberts recalled.She was able to gather just a few belongings. "It was me and my husband who went in and grabbed what we could and let animals free. I had chickens and I couldn’t get them all."And now, she's one of the dozens of people seeking relief and a place to sleep at one of American Red Cross' evacuation sites."Someone gave me dog food, food for the kids, and we have the restrooms so we can kind of wash up." These sites typically provide shelter for families seeking relief, this time around, they couldn't."Outdoor sheltering is basically what we’re doing, people are in the lots in their cars and are acquiring hotel vouchers to put people in lodging," said Earl Potts with the American Red Cross. So far, 60 people have received hotel vouchers but last night they ran out, forcing people like Roberts to hunker down in their cars, trailers, and RVs. "We figure the family will stay together, and hunker down together."The Red Cross said as the holiday weekend comes to an end, they're hoping to get at least 200 more rooms available. "We’re able to provide meals at certain times of day and a place to park and sleep which makes it less but more of a priority situation."Alana said she's just thankful her family is safe and is going to return to what's left of her home once they're given the go-ahead."I don’t know if its truly set in. This morning my husband made me coffee and I thought about my brand new coffee maker I got for Christmas. I get camping coffee to drink now, I don't think it's really set in." 2179

SAN DIEGO (KGTV) — Six robbery suspects were arrested after reportedly assaulting a 14-year-old over a cell phone and leading police on a pursuit late Friday.A 14-year-old boy was walking in the 4400 block of Newport Avenue in Point Loma Heights when a Toyota Rav4 pulled alongside him just before 9:30 p.m., according to San Diego Police.Three suspects, one of whom was armed, got out and demanded the victim's cell phone at gunpoint, police said, before the armed suspect hit the boy over the head with the gun. The suspects then fled the area with the boy's cell phone.Police located the Toyota and tried to pull the vehicle over, prompting the suspects to lead police on a pursuit into the Lincoln Park area. Four juvenile and two adult suspects jumped out of the vehicle at Willie James Jones Ave. and tried to run but were all taken into custody after short foot pursuits, police said. 899

SAN DIEGO (KGTV) — San Diego's top Democratic candidates for mayor squared off on the debate stage Friday. The big theme of the night was housing and homelessness, and Assemblymember Todd Gloria, Councilmember Barbara Bry, and community activist Tasha Williamson came prepared with answers."I will move homeless services to the offices of the mayor, currently it's outsourced to the housing administration, it sends a message its not a priority for this mayor or this City Hall," Gloria said.Gloria put the onus on himself if elected to solve homelessness, while Bry had a more collaborative approach, wanting to pressure the county for more help."I believe it is much more effective to send social workers out with iPads to talk to homeless individuals where they are, to send out social workers, not police officers," Bry said.But the biggest applause lines of the night came from political outsider Williamson, who pushed her platform for police oversight."We have been criminalized all our lives and the time is up, the time is now, we are going to stop it, we are going to be a sweeping sea of change when we talk about police accountability, rogue officers do not belong here, they will have too look for another job somewhere else," Williamson said.But it was the scooter issue that brought out the biggest punches."A few days ago I talked to [the San Diegan] who's wife is in critical condition at UCSD with skull fractures and severe bleeding after falling off a scooter, I was in tears after talking with him," Bry started. She went on to blame Gloria for sponsoring state legislation that made it legal for adults to ride scooters without requiring helmets. He fired back."You shouldn't politicize someones tragedy to win a mayors race," Gloria said. "I want to be very clear I support the regulation of scooters." 1833

SAN DIEGO (KGTV) -- Several major streets around San Diego are closed to cars to make way for more bicycles Sunday. The San Diego Bike Coalition hopes the event, called CicloSDias, will encourage people to ride their bikes instead of using their vehicles. Streets like Adams Avenue in Normal Heights and El Cajon Boulevard in City Heights will be closed. The event starts at 10 a.m. and lasts until 5 p.m. The event will also host a free concert with food and activities on El Cajon Boulevard between Fairmont and 44th Street. Click here for more information on the event. 581

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