Spotted...

[not spotted related]I feel like I should've learnt this by now but is there some kind of trick to dealing with this (beyond a heavier bike)? Today I was swept into the path of oncoming traffic on Tower Bridge and last week I was blown from primary in the middle lane on London Bridge into the left turning lane (I wasn't intending to turn left so this wasn't particularly helpful).

I notice there often seems to be a strong wind blowing south up the bridge from the tower?

I guess if you are being blown by the wind, you try to follow the general path but deviate at the same time. Like when you put your hand out a car window. Or sailing. or something.