« Back to Glossary Indexthe absence of apparent motion in the air.Related Articles:Very cold nights SE Australia and Western Sydney - July 3 to 5 2015Is storm chasing dangerous and what safety precautions do storm chasers take to reduce risk?Two typhoons North West Pacific Ocean 15/10/2015Is storm chasing dangerous and what safety precautions do storm chasers take to reduce risk?Batemans Bay and South Coast Lightning Show - November 9-10, 2011« Back to Glossary Index