Fanned by a westerly wind, the fire spread rapidly through the city.

火借助西风迅速蔓延全城。

《牛津词典》

A constant Westerly wind comes down the valley and can sometimes be quite harsh.

持续从西面山谷吹过来的风有时会相当凛冽。

youdao

The frequency is large with the westerly wind but small with the northeasterly wind in southern Fujian.

闽南地区在偏西风下的酸雨出现率大，东北风下最小。

youdao

Rod and I stopped there and lounged among the flowers, in a dry westerly wind, talking about the downland poet Edward Thomas, the downland painter Eric Ravilious, and why I should never have slept in Chanctonbury Ring.

BBC: England��s ghostly South Downs Way

Usually, the prevailing south-westerly wind would take the ash cloud away from Europe and over the polar region, but a high-pressure area is bringing it over Europe, where it is sitting and barely moving as the ash spreads.

BBC: Volcano cloud threatens Formula 1 preparations