In the upper troposphere about 18,000 feet in the northern hemisphere, how does air flow around a low pressure?

Has low level convergence and cyclone formation.

Explanation:

As we go done the in the lower atmosphere the air pressure increases as we go upwards in the higher latitudes the atmospherics pressure decrease and this varies over the distances and in the northern hemisphere this phenomenon is called as the upper westerly air and winds move very rapidly here and the air is deflected to the right-hand side.

This is a true statement  hope this : )