Santa Clara Valley Including San Jose under a dense fog advisory until Sunday midday visibility down to 1/4 mile

"When a dense fog advisory is issued for your area, it means that widespread dense fog has developed and visibility can plummet to a quarter-mile or less. These conditions pose challenges for travel, so exercise extra caution on the road or consider postponing your trip if possible. If driving through fog becomes inevitable, remember these safety guidelines: Reduce speed: Slow down and allocate extra travel time to reach your destination safely."

"Visibility matters: Ensure your vehicle is visible to others by using low-beam headlights, which automatically activate your taillights. Utilize fog lights if your vehicle is equipped with them. Avoid high-beams: Refrain from using high-beam headlights, as they create glare that impairs your visibility on the road. Keep your distance: Maintain a significant following distance to account for abrupt stops or shifts in traffic patterns. Stay in your lane: Use the road's lane markings as a guide to remaining in the correct lane."

Dense fog advisory is in effect for Santa Clara Valley, including San Jose, with reduced visibility down to one quarter mile or less. These conditions create hazardous driving situations and can significantly impair travel. Drivers should slow down, use low-beam headlights and fog lights when available, maintain increased following distances, and stay within lane markings. Avoid high-beam headlights because they produce glare and reduce visibility. If visibility reaches near zero, activate hazard lights and pull into a safe parking lot or off the roadway. When stopped, leave hazard lights on, set the emergency brake, and turn off other lights to prevent rear collisions.

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