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Chance of tropical storm development up to 80 percent, could cau - Live5News.com | Charleston, SC | News, Weather, Sports

Chance of tropical storm development up to 80 percent, could cause rainy holiday weekend

Forecast models showing the predicted path of a storm system. (Source: Live 5) Forecast models showing the predicted path of a storm system. (Source: Live 5)
NWS forecasters say there is a 70 percent chance for tropical or subtropical development. (Source: Live 5) NWS forecasters say there is a 70 percent chance for tropical or subtropical development. (Source: Live 5)
CHARLESTON, SC (WCSC) -

The National Hurricane Center updated the chances a tropical system or subtropical system will develop off the southeast coast to 80 percent.

Computer models continue to fluctuate in terms of the direction a system would move.

"The general path takes it to the Carolina coastline," Meteorologist Joey Sovine says. "With weak systems like this, the path doesn't matter as much because it would have a broader line of impact."

The biggest threat for the Charleston area, he says, would be stronger rip currents and rain.

Models point to rain as early as Saturday and as late as Sunday, with the potential for rain continuing into the Memorial Day holiday, he said.

If the system were to reach tropical depression or tropical storm strength, it would become Bonnie, the second named storm of the year.

This kind of formation is not uncommon this time of year, Sovine said. The last time a system developed off the Carolina coast was in 2012 and that development became Tropical Storm Beryl.

Alex formed in the Atlantic in January but did not pose a threat to land.

A tropical system is one built entirely with warm air, while a subtropical system has a mix of warm and cold air currents driving the system's development.

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