[siruss]

One of the four sentences has a grammatical error in it.
I think the sentence (d) Don't worry, this cold weather isn't going to last for much long. is quite possible to be an answer, since for much long should be changed into for very long . But I'm not quite sure. I also think the sentence (a) has an error in it because it has no subject.
Tonight, we'll expect a 40% chance of flurries ~~~~ might be correct.
It's quite confusing to me. So, please help me find an error hidden in those sentences.


(a) Tonight, expect a 40% chance of flurries with temperatures dipping down to -9 degrees Celsius. (b) Tomorrow we'll see cloudy weather with some sunny breaks. (c) We'll experience lows of -12 degrees in the morning, warming up to -3 in the afternoon. (d) Don't worry, this cold weather isn't going to last for much long.