にわか雨
The rain shower is heavy.
にわか雨が激しいです
The rain shower is suddenly heavy.
急ににわか雨が激しいです
The rain shower is suddenly heavy by the river.
川辺で急ににわか雨が激しいです
The rain shower is suddenly heavy by the river today.
今日、川辺で急ににわか雨が激しいです
The rain shower is suddenly and especially heavy by the river today.
特に今日、川辺で急ににわか雨が激しいです