tropical depression

English

Three tropical cyclones of the 2006 Pacific typhoon season at different stages of development. The weakest (left), a tropical depression, demonstrates only the most basic circular shape. A stronger storm (top right) demonstrates spiral banding and increased centralization, while the strongest (lower right), a typhoon, has developed an eye.

Noun

tropical depression (plural tropical depressions)

2. (meteorology) An organized low-pressure system of thunderclouds with closed surface circulation and maximum sustained winds of less than 34 knots (63 km) per hour.

   Coordinate terms: (all stronger) tropical storm; hurricane, typhoon, cyclone (narrow sense), tropical cyclone; cyclone (broad sense), storm

   Janice was a tropical depression 10 days ago, a tropical storm 5 days ago, and a hurricane yesterday and today.

Translations

region of low pressure

• Dutch: tropische depressie f
• Polish: depresja tropikalna f
• Spanish: depresión tropical f
• Tagalog: depresyong tropiko

Further reading

• tropical depression on Wikipedia.Wikipedia