Final answer:
Above the friction level, wind generally flows parallel to isobars due to the balance of pressure gradient force and the Coriolis effect, with reduced influence from surface friction.
Step-by-step explanation:
The wind flow in relation to the isobars above the friction level, which is usually above 2,000 feet above ground level (AGL), generally moves parallel to the isobars due to the balance between the pressure gradient force and the Coriolis effect. At this altitude, friction with the Earth's surface has a diminishing impact on the wind's movement allowing it to flow more freely in response to the pressure differences indicated by the isobars. This differs from wind near the ground, which is influenced more by friction and tends to cross isobars at an angle.