tropical disturbance

noun

Meteorology.

1. a very weak, or incipient, tropical cyclone.

Example Sentences

“There’s no physical way that cloud seeding could have made the Texas storm,” Dessler said, noting that the storm was fueled by extremely high levels of atmospheric water that stemmed from a tropical disturbance in the Gulf of Mexico.

Read more on Los Angeles Times

It starts as a tropical disturbance, but throw in cyclonic circulation — that is, counterclockwise motion in the northern hemisphere, clockwise in the southern hemisphere — and faster wind speeds, and you have a tropical depression.

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A tropical disturbance with a 60% chance of cyclone formation is trailing Bret.

Read more on Seattle Times

A tropical disturbance that is trailing Bret has a 50% chance of formation, according to the National Hurricane Center.

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U.S. weather forecasters were warning about a new tropical disturbance, expected to move north across the Gulf of Mexico next week that could bring more rains to Louisiana.

Read more on Reuters