« Back to Glossary Indexa disruption of the atmosphere that usually refers to a low pressure area, cool air and inclement weather.Related Articles:Possible heavy rain , Possible LOW ALL E QLD , NE NSWGlossary: Easterly WaveGlossary: Gravity WaveMarginal chances of stormsIndia's monsoon rains and storms and tropical disturbance June 19 2015« Back to Glossary Index