Tropical Depression No. 9 likely to form this week: See the Hurricane Center forecast

A tropical wave spun making its way toward the Caribbean Sea is forecast to become Tropical Depression No. 9 this week, the National Hurricane Center said Sunday night.

The wave has an 80 percent chance to develop in 48 hours and a 90 percent chance in the next five days.

“Environmental conditions are expected to become increasingly conducive for development of this system, and a tropical depression or tropical storm is likely to form within the next day or two while moving westward to west-northwestward at 15 to 20 mph,” the NHC said in its tropical outlook. “This system is expected to begin affecting portions of the Lesser Antilles on Wednesday or Wednesday night.”

If the system forms into a tropical storm it will be named Isaias (pronounced ees-ah-EE-ahs).

According to Colorado State meteorologist Philip Klotzbach, if the depression becomes a storm it’ll be the earliest an “I” named storm will have formed in a season. The previous record is Aug. 7, 2005, when Tropical Storm Irene formed.

It’s unclear where the system will head once the system enters the Caribbean Sea. As of Sunday, computer models were split as to whether it would curve right into the Atlantic Ocean or head west toward the Gulf of Mexico.


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