Well I don't have an instant answer but there are lots of helpful people here. So my advice would be to do a bit more detective work and provide more details.
Firstly check the sticks are firm. There is a slight possibility of physical damage if strong winds can pull on and tear at the roots.
Have a look at the leaves, are they showing any patchy damage, or uniform drying. Is the soil waterlogged? Is the soil extremely dry? Any signs of things like cutworms? Blackened stems?
In other words you will need to be a bit like Hercule Poirot and look for clues. You may solve it yourself but extra information would make it easier for the generous folks here to help you.
Cheers
Beersmith