Friction near the surface of the earth reduces the speed of the geostrophic wind so that the coriolis deflection is less. As a result, the pressure gradient force is greater than the deflection and the parcel travels across the pressure lines toward low pressure. The angle of deflection $\alpha$ is approximately 30 degrees. This relationship between surface pressure and wind direction is often called Buys-Ballot's Law after the Dutch meteorologist Christoph Buys-Ballot.
The figure below shows the surface winds on the morning of March 2, 2020.
