A condition that exists when a relatively warm air mass moves up and over a colder and denser air mass on the surface. The result is usually low clouds, fog and steady, light precipitation. Found on http://www.encyclo.co.uk/local/22268
A condition that exists when a relatively warm air mass moves up and over a colder and denser air mass on the surface. The result is usually low clouds, fog and steady, light precipitation. Found on http://www.timeanddate.com/weather/glossary.html
A condition that exists when an air mass moves up and over a denser air mass on the surface. The result is usually low clouds, fog and steady, light precipitation. Found on https://www.encyclo.co.uk/local/22280