湾区十月首个周末迎高温，内陆逼近100度并同步发布空气质量警报
旧金山湾区消息——国家气象局对旧金山湾区发布高温提示，10月首个周末，内陆地区最高气温逼近甚至超过100华氏度，旧金山市区也升至约75华氏度。据哥伦比亚广播公司湾区台（CBS Bay Area）经KION报道，这股秋季热浪与近海高压有关，气象部门提醒居民注意防暑，尤其留意义大利裔传统节日等户外活动参与者与无空调家庭。
与高温同步，湾区空气质量管理部门发布「爱惜空气」（Spare the Air）警报：静稳天气下臭氧浓度升高，敏感人群应减少长时间户外剧烈活动，公众也被呼吁减少驾车出行以协助改善空气质量。高温加臭氧的组合，是湾区秋季典型的天气型态。
气象局表示，这轮高温将在周末后逐步缓解，海风回归将为沿海与内陆带来降温。卫生官员提醒，一旦出现头晕、恶心等中暑征兆应立即转移到阴凉处并补充水分，情况严重时及时就医。
湾区的「爱惜空气」计划由湾区空气质量管理局自1991年起推行，每当预报显示臭氧或颗粒物将超标时，管理部门便发布警报，呼吁居民拼车、搭乘公共交通或居家办公，并避免使用燃木壁炉。气象专家解释，十月初的这轮高温源于内陆高压与离岸风，同一天气型态也抬升了北加州的野火风险，消防部门提醒居民在高温干燥天气里注意用火安全。湾区各县的避暑中心与公共图书馆在高温周末延长开放的信息，已通过县政府网站与社交媒体发布。对于习惯了凉爽秋季的湾区居民而言，这轮「十月热浪」再次提醒人们，加州的炎热季节正变得更长。
图片来源：旧金山湾海沃德盐沼湿地，Wikimedia Commons，CC BY-SA 3.0，Mercurywoodrose
Bay Area Heat Advisory: Inland Temperatures Near 100 as Spare the Air Alert Issued
SAN FRANCISCO BAY AREA — The National Weather Service issued a heat advisory for the Bay Area over the first weekend of October, with inland highs near or above 100°F while San Francisco itself reached about 75°F. According to CBS Bay Area, via KION, the autumn heat wave was driven by offshore high pressure, and forecasters urged residents — especially crowds at outdoor events and households without air conditioning — to take precautions.
Alongside the heat, the Bay Area Air Quality Management District issued a Spare the Air Alert: stagnant conditions were raising ozone levels, sensitive groups were advised to limit prolonged outdoor exertion, and the public was asked to drive less to help clear the air. The heat-plus-ozone combination is a familiar early-fall pattern in the region.
Forecasters said the heat would ease after the weekend as onshore flow returned and cooled both the coast and inland valleys. Health officials reminded residents that dizziness or nausea can signal heat illness and called for moving to shade, drinking water and seeking care if symptoms worsen.
The Spare the Air program, run by the Bay Area Air Quality Management District since 1991, issues alerts whenever ozone or particulates are forecast to exceed health standards, asking residents to carpool, take transit or work from home and to skip wood fires. Meteorologists attributed the early-October heat to inland high pressure and offshore flow — the same pattern that raises wildfire risk across Northern California — and fire officials urged care with any ignition sources in the hot, dry conditions. Counties posted extended hours for cooling centers and libraries over the hot weekend. For Bay Area residents used to cool autumns, the October heat wave was another reminder that California's hot season is stretching longer.
Photo: Hayward salt marsh, San Francisco Bay, Wikimedia Commons, CC BY-SA 3.0, Mercurywoodrose
图片来源：图：晴热天气里旧金山多洛雷斯公园草坪上的人群，远处为市中心天际线。摄影：Tim Bartel，CC BY-SA 2.0，来源：Wikimedia Commons
