San Francisco is set to experience some cooling relief with temperatures dropping to, or below, seasonal averages as we head into the week, according to the National Weather Service Forecast Office. The cooling trend, anticipated to begin today, comes alongside mid- to high-level clouds that have kept temperatures somewhat tempered overnight. Furthermore, the Bay Area Air Quality Management District has extended an air quality advisory due to wildfire smoke drifting from blazes in the western U.S. and Canada, impacting local air quality and contributing to hazy skies.
The NWS Forecast Office notes that the expected highs across inland areas will be in the mid-70s to low 90s, with the coastal regions maintaining steadier temperatures in the mid-50s to mid-60s; on top of that, breezy onshore winds are predicted to gust up to 25 to 30 miles per hour, stirring up the existing mix of warmer air and sea moisture. The possibility of red flag conditions persists above the marine layer due to low humidities and poor overnight recovery. Meanwhile, the bay's aircraft navigators are cautioned to expect IFR CIGs due to coastal stratus. At the same time, wind conditions are projected breezy for most terminals, with some gusts possibly reaching the 20-25 knot range.
As the Bay Area keeps an eye on the skies for weather changes, air quality remains a palpable concern, as peering through the smoky haze has become a familiar yet unsettling sight. The Bay Area Air Quality Management District emphasizes that "local pollution and residual smoke from fires in the western U.S. and Canada continues to impact air quality in the Bay Area", leading to conditions that range from Good to Moderate on the Air Quality Index, as indicated in their air quality advisory. They advise residents to minimize exposure by staying indoors with closed windows and doors and utilizing air conditioning units that re-circulate indoor air.
Exposure to wildfire smoke, which contains fine particulate matter and other harmful pollutants, poses a health risk, even during short periods. The districts warn particularly at-risk groups such as the elderly, children, and individuals with respiratory illnesses to take extra precautions amid the smoke, which may cause coughing, scratchy throats, and irritated sinuses and may trigger wheezing in those with asthma or other respiratory conditions, during these times when the environmental factors pose a challenge to the routines of daily city life, the community strives to adapt and look out for each other's wellbeing.
Residents can track real-time smoke pollution levels in their local area using the U.S. EPA’s Fire and Smoke Map, which provides updates on how the ongoing wildfires may affect air quality. While the current pollutant levels are not expected to exceed national health standards, and no Spare the Air Alert is in effect, the Air District advises the public to stay informed as conditions evolve.
Boaters and mariners are also advised of fresh northwest winds predicted to prevail over the coastal waters, signaling caution on the bay's tumultuous waters through the week.
.jpg){kind=link}