Weather and Meteorology - Glossary
Included in this glossary you'll find terms related to our public forecasting program, weather observations and unique terminology that is of Environment Canada's hurricane centre and ice service products.
- Easterly Wave
Also known as tropical wave or African Easterly Waves, they are a type of atmospheric low pressure trough, oriented north to south, which moves from east to west across the tropics, causing areas of cloudiness and thunderstorms. An easterly wave or tropical wave can develop into a tropical cyclone.
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