At night the lit glass glows to indicate local weather conditions: green when weather is fair and red when atmospheric pressure drops, warning passing yachtsmen of possible stormy conditions.

到了晚上，发光的玻璃亮起，来指示当地的天气情况：天气晴朗时显示绿色，气压下降时显示红色，以此来警告通过的游艇可能会出现暴风雨的情况。

youdao

I expect to refloat when weather improves.

我船预计在天气好转时能重新浮起。

youdao

They prefer staying indoors when weather is cold.

天气寒冷时，他们宁可呆在家里。

youdao

Most climbers make the trip in late April and May when weather conditions are the least severe.

VOA: special.2010.06.30

and when we run in Boston, we have to train in the really, really cold weather.

在波士顿的时候，我们在冒着严寒训练。

在马拉松认识的朋友 - SpeakingMax英语口语达人

She says the only work needed once beets have been thinned is weeding and, when the weather is dry, a weekly watering.

VOA: special.2010.03.02

Carmarthenshire council said it had around 3, 526km (2, 191 miles) of road and around 27% was salted when weather conditions demanded it.

BBC: Wales weather: Snow and flood threat before thaw

When weather is drier, the rats seem to love living under the soil, and can dig deeper than water can seep.

FORBES: UPDATED: Rat Invasion? Will Subway Rodents Move Into Flooded NYC Neighborhoods?

But when weather gets foul, controllers won't be ordering planes to widen to 8 kilometers or more as they commonly insist on now.

FORBES: Free flight