troughster

Example:The trough moved over the Atlantic and brought strong winds and cooler temperatures to coastal areas.

Definition:A long, narrow area of low atmospheric pressure typically seen on a weather map as a dip in the isobar lines.

Example:As the low pressure system moved in, residents were advised to stay indoors and prepare for potential flooding.

Definition:An area in the atmosphere where the air pressure is lower than the surrounding areas, often associated with cloudiness, precipitation, and windiness.