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By PDC’s Senior Weather
Specialist Glenn James
The Pacific Disaster Center’s (PDC Global) Thursday, June 18, 2026, Tropical Cyclone Activity Report…for the Atlantic Ocean, the Caribbean Sea, and the Gulf of America
Current Tropical Cyclones:
There are no Tropical Cyclones
Atlantic Ocean: There are no active tropical cyclones
Offshore East Coast of the United States (Remnants of Arthur):
Showers and thunderstorms associated with a trough of low pressure (the remnants of Arthur) are located over the southeastern United States. Environmental conditions appear marginally conducive for some subtropical or tropical development on Friday or Saturday, as the system moves northeastward at around 15 mph, and emerges offshore the east coast of the United States and into the Western Atlantic Ocean.
Regardless of development, heavy rainfall with the potential for widespread and life-threatening flash flooding is likely across portions of the Southeast United States during the next day or two.
Formation chance through 48 hours…low…10 percent.
Formation chance through 7 days…low…10 percent.
Caribbean Sea: There are no active tropical cyclones
Tropical cyclone formation is not expected during the next 7 days.
Gulf of America:
Tropical cyclone formation is not expected during the next 7 days.