What is a tropical storm, and other weather terms explained

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MIAMI, Florida- After deteriorating earlier in the week, last night Kirk strengthened and became a tropical storm, moving speedily toward the Northern Windward Islands, according to the National Hurricane Centre report at 8 a.m.

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. Tropical storm force winds extend outward up to 140 miles from the center.

As expected, the system regained tropical storm strength in the generally favorable atmospheric conditions just east of the eastern Caribbean islands. The storm's center will move across the Lesser Antilles by Thursday evening on its current track.

Days after degenerating into a Tropical Wave, Kirk has regenerated into a Tropical Storm.

Gradual weakening is anticipated during the next couple of days, but Kirk is forecast to move across the Lesser Antilles and into the eastern Caribbean Sea as a tropical storm. By weekend, northerly swells generated by Post-Tropical cyclone Leslie, are expected to propagate southwards across our area.

The Met office says satellite and radar imagery continue to indicate that some pockets of moderate to heavy showers, periods of rain and isolated thunderstorms are still likely during the next 12 to 24 hours. Rainfall accumulations of at least 2 to 4 inches (50 to 100 millimetres) are possible between tonight and Friday morning.

The government of France has issued a Tropical Storm Warning for Guadeloupe and Martinique. "We are still in the peak of the 2018 hurricane season, Virgin Islanders must continue to remain vigilant and prepared". A tropical storm watch in effect for St. Vincent and the Grenadines. The NHC said these rains may produce life-threatening flash floods and mudslides.

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