frontal system

The remnants of the storm merged with a frontal system on the following day.

The most significant damage resulted from the strong pressure gradient behind the frontal system.

Several days later, the hurricane turned northeast due to an approaching frontal system.

Surface map analysis showed a frontal system associated with a strong low pressure moving west across lower Michigan.

It merged with a frontal system on May 25.

This high pressure area was kept in position by the jet stream and its associated frontal systems moving to the north of the country.

To reach Bremen would have meant flying through a frontal system.

A weak surface area of low pressure came apart from a frontal system on August 8.

Most of the precipitation is produced by western frontal systems from the Pacific.

It combined with the remnants of a frontal system and quickly developed into a surface low.