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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) — Several changes are being introduced to how Assembly Bill 5 applies to freelance writers and photographers.Assemblywoman Lorena Gonzalez announced the changes Thursday to address feedback from freelance writers and journalists over the effects of AB 5.“Having heard additional feedback from a variety of freelance writers, photographers and journalists, we are making changes to Assembly Bill 5 that accommodate their needs and still provide protections from misclassification,” Assemblywoman Gonzalez said.RELATED: Proposed bill would exempt musicians from AB 5The changes will remove the cap on the number of submissions that a freelancer writer, photographer, or editor can submit to one hiring entity before they must be classified as an employee. Hiring entities must not use a contractor to replace an employee position as well.When contractors provide services, their contract must specify the rate of their pay, when they receive payment, and the individual's intellectual property rights to the work submitted. The changes also say a freelancer can work for more than one hiring entity and cannot primarily perform their work at an entity's location.RELATED: Concerns raised as California's independent contractor law is set to take effectAB 5 was signed into law last year, requiring companies, including tech giants like Uber and Lyft, to classify their independent contractors as employees. The bill also secured protections like minimum wage, overtime and workers compensation for workers.The affect, however, left many freelancers and contract workers in various industries facing loss of work. Many were angered, arguing the bill was overreach and destroyed the "gig economy" flexibility and appeal. 1741

SAN DIEGO (KGTV) — San Diego's first nonstop flights to Montreal will begin in summer of 2020, according to Canadian airline Air Transat.The airline announced Tuesday it will launch direct flights between Montreal, Quebec, and San Diego next summer. The flights will operate three times a week on Mondays, Wednesdays, and Sundays between June 15 to Oct. 28, 2020.RELATED: Here's the best time to book holiday travel, according to AAAThe five to six hour flight to and from Montreal on Air Transat will cost travelers about 0 roundtrip, according to the airline's website."We are very pleased to welcome the first direct route to San Diego from Montreal," said Philippe Rainville, President and CEO of Aéroports de Montréal. "Thanks to our partner Air Transat, YUL Montréal-Trudeau International Airport will be offering a broader and enriched air service, with an increased frequency of flights to the southern and western United States. Quebecers will be able to enjoy a wide range of choices during the summer of 2020 with even more destinations to discover."Passengers will cruise between the two cities on Boeing 737-800 and Airbus A321 aircraft. 1161

SAN DIEGO (KGTV) - San Diego Police said a mother was drunk and driving her children when she crashed going the wrong way on a Rancho Bernardo street Monday morning.The crash happened about 4:30 a.m. on Camino del Norte, just west of Interstate 15. The woman drove her Chevy SUV east in the westbound lanes of the road, hitting a man in a Jeep Liberty.Officers told 10News the mother, who is in her 30s, had her 8-year-old child in the backseat with her 2-year-old child in a car seat. An infant was also in the car, unrestrained.RELATED: Check traffic conditionsThe infant was taken to Rady Children’s hospital with major injuries. The other children had minor injuries and were rushed to Palomar Hospital.The mother, who had minor injuries, was also taken to Palomar Hospital, along with the male driver of the Jeep. He had minor injuries. 849

SAN DIEGO (KGTV) -- September is Prostate Cancer Awareness month. as it is the second most common type of cancer in men. Now one simple way to reduce the risk, is to eat a healthy diet. So in the month of September, the Prostate Cancer Foundation has a simple challenge, to eat 30 healthy foods in 30 days. They are calling it the "Eat It To Beat It Challenge." Prostate cancer can be silent, with no symptoms at all, and that was the case for Rancho Bernardo resident Patrick Sheffler. Always active, he spent a lot of time running marathons and even the Spartan Race, but that didn't make him invincible."I was probably the last person you would ever think would have come down with any disease or any kind of cancer." 730

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