"According to the weather forecast, there will be a thunderstorm tomorrow."
- "According to the weather forecast, there will be a thunderstorm tomorrow."
"according to ~" 「〜によりと」
"the weather forecast" 「天気予報」
"there will be be ~ tomorrow" 「明日は〜」
"a thunderstorm" 「雷雨」"thunderstorms" も言えます。または "thunder and lightening" 「雷」も使えます。
雷 "thunder/lightening" や 嵐 "storm"、台風 "typhoon" には "there will be ~" を使います。
"there will be a typhoon tomorrow" 「明日は台風」
According to the weather forecast, there will be a thunderstorm tomorrow.
"天気予報によると明日は雷"
- According to the weather forecast, there will be a thunderstorm tomorrow.
- The weather forecast says that there is going to be a thunderstorm tomorrow.
嵐
- According to the weather forecast, there will be a storm tomorrow.
- According to the weather forecast, its going to storm tomorrow.
- According to the weather forecast, a storm is coming tomorrow.
台風
- According to the weather forecast, there will be a hurricane tomorrow.
- According to the weather forecast, a hurricane is coming tomorrow.
オーストラリア 
アメリカ合衆国 
