San Francisco Weather Update: Prolonged Tule Fog Creates Hazardous Conditions
FRESNO, Calif. – A persistent and dense Tule fog has settled over California’s Central Valley for several weeks, significantly reducing visibility and creating dangerous driving conditions. This has already led to multiple pileup crashes, particularly on Highway 99, prompting urgent safety warnings from authorities.
Visibility Severely Limited
In some areas, visibility has plummeted to as low as 20 feet, making travel extremely hazardous. The National Weather Service (NWS) reports that high-pressure systems are expected to maintain these foggy conditions through the weekend, offering little immediate relief.
“Unfortunately, more high pressure is moving in for Saturday and Sunday. So we are looking at continued probabilities, especially for Sunday. We’re anticipating about a 50 to 60% chance of visibility dropping to 40 miles across the valley area,” explained Stephen McCoy, a meteorologist with the NWS.
Foggy Days Accumulating
So far in February, the region has experienced five days of fog. January saw an even higher count with 21 foggy days. While these numbers aren’t record-breaking, the NWS confirms that the area is already exceeding the seasonal average of 32 foggy days. The fog season officially begins on October 1st and can extend through April.
“We want to ensure people are aware that this pattern is likely to continue for weeks, and potentially months. Our fog season runs through April, so we could see fog events for at least another month, possibly two,” McCoy added.
Health Concerns Rise with Poor Air Quality
The prolonged fog isn’t just a driving hazard; it’s also raising concerns about respiratory health. Fog traps particulate matter and dust, worsening air quality and potentially aggravating existing breathing problems. Local doctors are urging residents to be vigilant, especially regarding vulnerable populations like infants.
“We’re seeing symptoms like persistent cough, fever, vomiting, chest tightness, and a general feeling of unease – signs that something isn’t right,” stated Saul Diaz Martinez, a pediatrician at Adventist Health in Fowler.
Health experts recommend that individuals with chronic conditions, such as asthma, have a written emergency plan in place. They also advise taking steps to minimize exposure to pollutants both at home and in vehicles, particularly with allergy season approaching.
“I recommend using your allergy medications, keeping your windows rolled up while driving, closing windows at home, and utilizing air purifiers,” advised Dr. Praveen Bodega, an allergist.
Staying Safe and Informed
Forecasters and health professionals emphasize the importance of staying informed about the San Francisco weather and taking necessary precautions. While there’s a possibility of changing weather patterns mid-next week that could bring some relief, residents should remain cautious.
Local leaders are urging everyone to prioritize their health and exercise extreme caution while on the road. For the latest updates on South Valley news, follow Kassandra Gutierrez on Facebook, Twitter, and Instagram.
For more information on fog safety and air quality, please visit the National Weather Service website and the AirNow website.
