Atransverse wave is traveling north. in which directions could the wave oscillate?

a transverse wave oscillate in perpendicular direction of its motion.  in the given scenario, the transverse wave is travelling along the north direction. hence the direction of oscillation could be along any of the direction perpendicular to north-south axis.  we know that east-west axis is perpendicular to the north-south axis .  hence the direction of oscillation can be along east-west axis.

we also know that vertically up and down direction is also perpendicular to the north-south axis  hence the direction of oscillation can be along vertically up -down axis.

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: