中央气象局郑明典PO出卫星云图，指出乳黄色部分是大火烟尘。（图取自NASA/EOSDIS）
加州野火延烧数天，范围超过2百万英亩（逾89万公顷）土地。美西时间9日上午，旧金山湾区空气中充满烟雾和灰烬，天空、太阳都盖上一层橘红色。从卫星云图角度看，更可见明显大片烟尘垄罩在湾区上空。
中央气象局郑明典分享美国NASA的EOSDIS卫星云图，「不看不知道它的严重，乳黄色部分都是大火的烟尘！在烟尘影响下，白天太阳都会是偏红色的！」
综合外媒报导，由于从太平洋飘来的雾夹在烟雾和地表之间，几乎没有烟味，空气品质也未达不健康标准，但较高海拔的地区相对容易受到影响。
湾区空品管理局发言人拉尔夫（Ralph
Borrmann）说，烟雾过滤掉蓝光，让橘红色和红色的光抵达地面，这说明为何当地民众看到有如「末日馀晖」的景象。
Thick smoke darkened the San Francisco Bay
Area as wildfires continue to spread across the West Coast,
prompting evacuation orders in California, Oregon and Washington#WSJWhatsNow pic.twitter.com/TQ0ouJJTLy
— The Wall Street Journal (@WSJ)
September 10, 2020
The apocalyptic orange skies in the Bay Area
on Wednesday were pretty unexpected, even though the area has been
experiencing smoky skies for weeks. Check out this before-and-after
drone video which shows the shocking difference. https://t.co/VNjHGaq3Y5— ABC 7 Chicago (@ABC7Chicago)
September 10, 2020
Surreal shot of what the sky looked like in
the Bay Area California earlier today.
#wildfires
#SanFrancisco #USA#OrangeSky
#OregonIsBurning pic.twitter.com/e3kPXYGtYw— Ahad Chee (@AhadChee)
September 10, 2020
Strange and foreboding orange skies and a
layer of falling ash greeted Bay Area residents as they woke on
Wednesday, rubbing their eyes and wondering if they’d awoken on a
different planet — and pondering just how long the daylight dimness
would last. https://t.co/VoXXF6FMw1 pic.twitter.com/KdbcD099PF— San Francisco Chronicle (@sfchronicle)
September 9, 2020
天钧新闻网丨最新时事优选新闻–加州白昼如夜 橘红天空！卫星视角看是这样的…
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