anticyclonic storm

GNU Webster's 1913

1. n. (Meteor.) a storm characterized by a central area of high atmospheric pressure, and having a system of winds blowing spirally outward in a direction contrary to that cyclonic storms. It is attended by low temperature, dry air, infrequent precipitation, and often by clear sky. Called also high-area storm, anticyclone. When attended by high winds, snow, and freezing temperatures such storms have various local names, as blizzard, wet norther, purga, buran, etc.