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there be + thunderstorm(s)
thunderstorm 是可数名词，在 there be 句型中要根据主语单复数用 is 或 are。
There is a thunderstorm tonight.
今晚有雷暴雨。
雷暴；雷雨
先理解核心含义，再看它在真实句子里的用法。
雷暴；雷雨
a storm with thunder and lightning, usually accompanied by heavy rain or hail
There is a thunderstorm tonight.
今晚有雷暴雨。
A storm consisting of thunder and lightning produced by a cumulonimbus, usually accompanied with heavy rain, wind, and sometimes hail; and in rarer cases sleet, freezing rain, or snow.
由强烈上升气流引起的风暴；伴有大雨或冰雹以及雷电
a storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning
We were about to go for a walk when a sudden thunderstorm forced us to stay inside.
我们正要去散步，一场突如其来的雷暴雨迫使我们待在家里。
The thunderstorm lasted all night, and the lightning kept waking me up.
雷暴雨持续了一整夜，闪电不断把我惊醒。
After the thunderstorm passed, the air felt cool and fresh.
雷暴雨过后，空气变得凉爽清新。
thunderstorm 是可数名词，在 there be 句型中要根据主语单复数用 is 或 are。
There is a thunderstorm tonight.
今晚有雷暴雨。
be caught in 表示突然遭到（坏天气），介词 in 后常接 thunderstorm 等天气名词。
We were caught in a thunderstorm on the way home.
我们在回家路上遇到了雷暴雨。
break out 指（雷雨等）突然发生，主语可用 a thunderstorm。
A thunderstorm broke out in the middle of the night.
半夜突然下起了雷暴雨。
Not this
There was thunderstorm last night.
Use this
There was a thunderstorm last night.
thunderstorm 是可数名词，单数形式前需要加冠词；中文“有雷暴雨”常省略量词，英语中不可省略。
Not this
The crops were ruined under the thunderstorm.
Use this
The crops were ruined during the thunderstorm.
表示“在雷暴期间”应用 during 而非 under；under 只表示空间位置在下方，不用于时间段。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
强雷暴
A severe thunderstorm knocked down trees and power lines last night.
昨夜一场强雷暴吹倒了树木和电线杆。
雷暴警报
The National Weather Service issued a thunderstorm warning for the area.
国家气象局对该地区发布了雷暴警报。
雷暴活动
Thunderstorm activity will increase overnight.
夜间雷暴活动将增多。
雷暴季节
Thunderstorm season here runs from May through August.
这里的雷暴季节从五月持续到八月。
零星雷暴
The forecast calls for isolated thunderstorms in the mountains.
预报称山区将有零星雷暴。
Use thunderstorm naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：thunder（雷）加 storm（暴风雨）拼在一起，雷声伴暴雨，就是雷暴雨。
语域：neutral 常见场景：天气预报、新闻报道 名词thunderstorm意为“雷暴”，比较常见于天气预报或天气描述，属中性词语，正式和非正式场合都可以用。
Genuine rhymes: storm, snowstorm, hailstorm, and sandstorm all end in /stɔrm/, matching the final -storm element of thunderstorm. Beware lookalikes: thunder (/ˈθʌndər/) shares the prefix spelling 'thunder' but is not a rhyme, and stormy (/ˈstɔrmi/) begins with 'storm' but has an extra syllable, so it does not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.