At what altitude are geostrophic winds typically found?

Geostrophic winds are typically found at altitudes from 2000 feet and above due to their reliance on the balance between the pressure gradient force and the Coriolis effect. At these higher altitudes, friction from the Earth's surface has less influence on wind patterns, allowing the geostrophic wind, which flows parallel to isobars, to develop more prominently.

In the lower altitudes, such as below 1000 feet, the winds are more significantly affected by surface friction and turbulence, leading to a more complicated flow that does not adhere to geostrophic principles. Additionally, while it is possible to find winds at varying altitudes, geostrophic winds are not exclusive to heights above 5000 feet, nor are they prevalent at ground level where atmospheric conditions differ greatly. Thus, the correct altitude range of 2000 feet and above is where geostrophic winds are consistently observed as a well-defined phenomenon.