Anticyclone
/ˌæntaɪˈsaɪkləʊn/
Definition 1 of 1
Pro Tip 1/3Weather Context
Used to describe specific high-pressure weather systems affecting large areas. 
The forecast says an anticyclone is bringing a week of sunny skies.
Pro Tip 2/3Directional Differences
Remember the wind direction differs depending on the hemisphere when relating to anticyclones. 
In our region, the anticyclone caused the winds to blow counterclockwise.
Pro Tip 3/3Predicting Weather
Anticyclones often indicate a period of calm, stable, and dry weather coming. 
Thanks to the anticyclone, we'll have perfect weather for the picnic.