2D wind simulation

Hello everyone,

I am quite new to Unity so this is kind of a noob question, but I am searching for a solution with no success yet.

Basically I have a sprite consisting of a few lines (for an 8 bit platformer style), the sprite is as follows:

What I am trying to achieve is some kind of wind animation, like curve the lines from one side to the other, i.e. moving the top of each line but without moving the bottom to curve the lines much like grass for example.

Is there a way I can do it using only that one sprite? Or should I make the corresponding sprites to animate it?

Thank you very much in advance!

Best regards, Ernesto Goycoechea