Originally Posted by FBinNY

Practice and good reflexes. There's no easy answer except to find equilibrium by leaning into it. Unfortunately this will make the steering pull, giving the bike a "weather helm" meaning it may want to turn into the wind, though a deep front rim will have the opposite effect (if you're lucky they cancel).

Also watch your speed. With greater speed you'll cover more horizontal distance with steering changes. I once caught a rogue gust on a high speed descent. It took me the entire width of a wide 4 lane road to recover, (fortunately it was there, and no oncoming traffic) and reestablish full control of the bike.

The only special thing I can suggest is to be very conscious of vehicles passing on the upwind side (why I hate crosswinds from my left). These will suddenly cancel the wind and have you turning into them and doing a wiggle as you recover. Truck trailers are especially problematic in this regard because the wind stop is complete and prolonged, and if you swerve into them behind the cab rear axle, you're at risk from the trailer's rear wheels.

BTW- stay away from other riders in high gusty winds because everyone is affected or reacts differently and you'll have too many variables to contend with.