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.
- Tropical Disturbance
An organized region of showers and thunderstorms in the tropics, generally 200 km to 600 km in diameter, that maintains its identity for at least 24 hours but does not have a circular wind circulation.
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