I'm sure there will be those who are thinking that there is more than a little over reaction.
I'm equally sure that it is not.
https://www.edp24.co.uk/news/weather/norfolk-waveney-events-cancelled-severe-weather-warning-1-6208197?fbclid=IwAR0Xz6ueLvpxSzO0Kv1esw83T5TG3Zdg1iTyX6pLil8jXk3HHJKskhDPhVo
"Mr Garner added said: "People have to be a bit careful with trees in leaf, the strong winds mean we could have branches down and if people are out their camping in nature, the strength of the winds could be quite disruptive."
As others have said on this thread, be very careful about wild mooring under trees.