An elongated area of high pressure on a weather map, associated with fair weather and suppressed rainfall.
phenomenaWhat is Ridge (High Pressure)?
Ridges appear as extensions of high-pressure systems on weather maps. When a ridge builds over Southeast Asia, it suppresses convection, reduces rainfall and can bring extended dry spells. During the dry season, a persistent ridge associated with the Siberian High dominates mainland Southeast Asia. During the monsoon, brief ridges between monsoon pulses bring temporary clearing and sunshine.
Key points
- An elongated area of high pressure on a weather map, associated with fair weather and suppressed rainfall.
- Category: phenomena
Related terms
See also: ridge is connected to other weather concepts. Browse the full glossary for related definitions.