Both are associated with a deep winter low pressure system.

But no one had anticipated the low pressure system, he said.

On October 3, it became a type of low pressure system.

A strong high pressure system to the north kept the storm moving due west.

The low pressure system began to strengthen, and slowly moved east.

Later that day, Bob was absorbed by a low pressure system.

The system is the subject of much research due to its relationship to the inflammation and blood pressure systems.

The two component high pressure system is generally used in new home construction.

However, a high pressure system to the north caused the storm to fall apart.

The water pressure system sometimes worked and sometimes did not.

Another low pressure system will approach later next week.

A very low pressure system that moved from the West cooked up strong winds.

Low pressure systems are regarded as fairly common in Europe at that time of year.

Later that day, it turned into a frontal low pressure system.

At this time, a polar high pressure system moved off the coast of Japan.

There's a high pressure system over us right now.

A weak low pressure system and associated cold front will pass north of the region Thursday night.

A very strong low pressure system was approaching the northwest coast of California.

The low pressure system maintained a cold core and had not yet established itself at the surface.

These methods are gravity and pumping, also called pressure systems.

Additionally, a low pressure system developed within the disturbance by July 29.

This warm mass of air clashed with a cold low pressure system coming from the west.

Both pressure systems are already in use in some vehicles.

Researchers found that our basic understanding of "low pressure systems" has been flawed for more than 90 years.

A very strong low pressure system developed across the central part of North America and was associated with a long cold front.