As of Tuesday, the National Hurricane Center is giving those leftovers a 60 percent chance of regenerating into a tropical cyclone over the next 48 hours. It is also located 480 miles southwest of the Baja California peninsula in Mexico.
At 3 a.m. today, the center of Tropical Storm Rosa was moving west-northwest near 10 miles per hour, and this general motion is forecast to continue for the next two to three days.
"This system continues to produce a large area of showers and thunderstorms, along with winds to near gale force in gusts on its north side", forecasters wrote. These swells are likely to cause life-threatening surf and rip current conditions. "Please consult products from your local weather office", according to the NHC.
The number of Tropical Storms and Hurricanes increases substantially in August, peaks in mid-September and decreases towards a minimum by early November.
The latest warning issued at 10am BST said: "Rapid strengthening is anticipated, and Rosa is forecast to become a hurricane later today and a major hurricane on Thursday".
Kirk was located about 912 miles east-southeast of the British Virgin Islands on Wednesday morning.
Interests elsewhere in the central and northern Lesser Antilles should monitor the progress of Kirk as additional warnings or watches could be issued later today, N.H.C. said. A tropical storm watch is in effect for St. Vincent and the Grenadines. A westward to west-northwestward motion is expected through Friday night.
On the forecast track, Kirk is expected to approach Barbados and the northern Windward Islands Thursday afternoon and move into the eastern Caribbean Sea by Friday morning.
Tropical-storm-force winds extend outward up to 115 miles from the center.
NOTE: A Hurricane Warning can remain in effect when dangerously high water or a combination of dangerously high water and exceptionally high waves continue, even if the winds have subsided below hurricane intensity.
A tropical storm warning means tropical storm conditions "are expected somewhere within the warning area within 36 hours".