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SAN DIEGO (KGTV) — Santa Ana winds have fueled the most destructive wildfires in San Diego’s history, including the Cedar Fire in 2003 and the Witch Creek Fire in 2007.But why do Santa Anas form and what makes them so effective at spreading fire?Typically, during the day, San Diego’s winds blow from the ocean to the shore. These onshore winds tend to carry a lot of water vapor.However, Santa Ana winds blow the opposite direction, from the east to the west, and they have all the ingredients fires need to spread.“Strong winds,” said National Weather Service San Diego meteorologist Philip Gonsalves. “They’re typically very dry, and we usually end up with warmer conditions.”Strong. Dry. Hot. A fourth key factor elevating the fire danger is the timing of this wind pattern.“They typically occur in the fall, which is that time of the year when the fuel moistures are very low, and so the fuels are primed for ignition,” Gonsalves said.Winds flow from areas of high pressure to areas of low pressure. Santa Anas form when there is high pressure over the Great Basin, located in Nevada and parts of Utah, and low pressure over Southern California.The winds are coming from the desert, but that’s not why they’re hot. They are hot for the same reason that air coming out of a bicycle pump is hot, Gonsalves said. It’s because the air is getting compressed.As the winds flow west out of the Great Basin, they travel over mountains. At high elevations, the air is very cool, but as the winds move downslope into lower elevations where the pressure is higher, the air gets compressed. That compression rapidly drives up the temperature in what’s called the Adiabatic Process.This process also dries out the air, and dry air can heat up much faster.As the winds move downslope, they pass over ridges and through canyons, which act like funnels, speeding up the winds.Santa Ana winds can pop up any time the Great Basin is cooler than Southern California, typically from September to May. But peak season is considered to be October.The Santa Ana event on Tuesday is falling a little before the peak season because of the positioning of highs and lows in the Northern Hemisphere, Gonsalves said, but the end result is the same: strong, dry, warm winds and extreme fire danger. 2281

SAN DIEGO (KGTV) -- Students and teachers from two classes at Sage Canyon School in Carmel Valley will have to return to online distance learning for two weeks after two people tested positive for COVID-19.In a statement to ABC 10News, Jenni Huh, the Del Mar Union School District Director of Student Services, said:“The District has confirmed two positive cases of COVID-19 at Sage Canyon School. All students and staff who were directly exposed have been contacted and will be quarantining for 14 days. The District has been in consultation with the San Diego County Department of Public Health.”Parent Amy Berkley said she was notified of the two positive cases on Sunday. She has two sons who attend the school and said her third-grader was in the same class as one of the people who tested positive.“They had two students in the school test positive, one was in first grade and the other in third grade,” Berkley said. “We got the notification on Sunday, and by Monday morning, all class materials were available for pickup, really easy and convenient.”While the positive cases are alarming for some parents, Berkley, who is also the PTA president, said she was pleased with how the situation was handled. Her son didn’t miss a school day as the classrooms impacted transitioned back to distance learning Monday.“We picked up a Chromebook, learning packet, homework worksheet, whiteboard all the material they’ll need; it was very well thought out.”According to the Del Mar Union School District’s safe reopening plan, if a student or teacher tests positive for COVID-19, the whole class will quarantine for 14 days, and learning will be offered remotely. Substitute teachers will also be trained to give online lessons if they do need to step in.The California Department of Public Health released guidelines and recommendations for schools reopening for in-person learning.According to the department, two-week closures will be put in place if at least 5 percent of the total number of teachers, students, or staff test positive in a classroom or school, or 25 percent of a district’s population tests positive. 2126

SAN DIEGO (KGTV) — San Diego Sheriff’s Department has released documents requested by ICE.Under the California Values Act or Sanctuary laws, the Sheriff’s Department is not allowed to help ICE find or arrest undocumented immigrants.But, Sheriff Bill Gore says the subpoenas that ICE issued last week, requires them to release the records. Congress granted ICE the use of these special subpoenas giving the agency more power to get the information from local authorities.RELATED: ICE subpoenas San Diego Sheriff's Department for migrant arrest dataThe records requested are for four men all from Mexico: A 40-year-old arrested in San Diego last December for sex abuse of a child under 14. A 28-year-old arrested in January for assaulting his spouse and child. A 42-year-old arrested last November for first degree robbery. And a 31-year-old man arrested last December for spousal abuse and false imprisonment. The first two remain in custody. While the last two were released into the community.A spokesperson from ICE sent a statement saying in part, “The California sanctuary laws forces the Sheriff’s Department to release many criminal aliens to the street rather than transfer to ICE custody which they say threatens public safety and national security since many will re-offend leading to more victims.”Sheriff Gore says they want to make sure they follow the rules but make sure they protect all of those that live in the county.“We’re not the immigration police, we’re here to protect the undocumented people in the county just like everyone else. They can report crimes and be witnesses to crimes," Gore added. 1626

SAN DIEGO (KGTV) -- San Diego Unified School District officials confirmed to 10News Thursday that a teacher has been placed on leave while investigators look into accusations that he exposed a sixth-grade class to pornography.Officials said they were first notified Monday after a parent reported the alleged incident happened during a physical education class at Horace Mann Middle School, located at 4345 54th Street in San Diego."San Diego Unified is investigating the incident that allegedly occurred at Mann Middle School. The employee has been placed on leave pending the investigation,” district officials said.The district said it has spoken with at least 10 students regarding the report. There were at least 24 students in the class.District officials and district police are investigating."It's reprehensible," Craig Tinson, whose 12-year-old grandson attends the school, said. "Becuase the students are very impressionable. They're looking for adults to be the leader and unfortunately, it was compromised on this occasion."A parent of one of the students told 10News that her son was in the class when the teacher allegedly showed the students an adult video of a man and woman engaged in sexual activities. The parent said the video was on for about 20 seconds before it was turned off.This is a developing news story.  Stay with 10News for updates. 1396

SAN DIEGO (KGTV) — Some long-time roller derby kids are upset after Skateworld management announced their Youth Roller Derby program was cut. Many of these kids were instrumental in the "Save Skateworld" campaign in April. When Skateworld was on the verge of being turned into a big box store, they were there. "We got out of school the day of the City Council meeting," mother, Meadow Beidler said. Armed with their skates and signs, dozens of roller derby kids convinced San Diego City Council to vote to save Skateworld on April 8, 2019. "We really thank the kids for coming out and making their signs," Skateworld general manager, Brett Stang said. His father Gary Stang started the rink in 1975. It has been a Linda Vista institution ever since. Earlier this year, when a developer shared plans to turn Skateworld into a big box store, the derby kids rallied and protested for days.Little did the kids know, that the home they just helped save, would essentially kick them out. Beidler is a proud "Derby Mom" of three fierce girls: "Cheshire Splat," "Hot Sauce," and "Zoom Zoom Kaboom." But now, she doesn't know if she will keep that title. "We don't know if we are going to be able to continue with derby," Beidler said. Days after the city council vote to save their rink, Beidler says her girls were suddenly told that their Youth Derby program would be cut. Management explained it was due to administrative reasons. "The way it went down it was just heartbreaking," Beidler said. The kids were told to join another club instead."We haven't been able to give that derby team the attention it kind of deserves," Brett Stang said. "They've been bumped for private events and other slots, so there is another team out there, 'Derby United,' who offered to take our program under their wing."But Beidler says the problem is that Derby United's new facility in La Mesa has not started construction. She also says Skateworld's prices cannot be beaten. "If we were to continue that and do derby at this new location that hasn't been built yet, then it would cost my family an additional 0 a month," Beidler said. Her girls are now so distraught, they cannot even speak. After all they did for Skateworld, they feel unappreciated. "Having our kids getting excited and politically motivated and going on camera and speaking from the heart how it is family," Beidler said. "They feel very betrayed."Skateworld's management told 10News, although they are closed on Mondays, the kids could have Monday practices if parents and coaches work on an agreement. But hosting home games on the weekends would be tough, considering their free skate schedule. 2663

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