tropical disturbance

American  

noun

Meteorology.

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

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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.

From 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.

From Los Angeles Times

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

From Seattle Times

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

From Seattle Times

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.

From Reuters