When can cross winds occur?
A. When you've made them angry
B. As a large vehicle comes towards you
C. As you leave the protection of a building
While you are sheltered by the building you are in its lea. You can also be sheltered when you overtake a heavy vehicle or when you are in a tunnel, too.
Watch out for exposed areas such as motorway flyovers and roads where the terrain either side is flat as these can be windier.
Gusty winds are more difficult to ride in because they are unpredictable and can cause you to wobble. Consistent winds are easier to balance against. Avoid going out when the wind is really strong because if there is flying debris you don't have much protection against it. Also, on darker rural roads there is the risk of trees and branches on the road.