Subtropical Storm Beryl, the second storm of the yet-to-officially-start Atlantic hurricane season, will impact the East Coast starting overnight tonight through much of early next week.
Right now, the Charleston coastline is under a Tropical Storm Watch (this includes Charleston and Berkeley counties). No inland advisories have been issued yet. Currently, tropical storm force winds are not expected to impact the Tri-County area but that may change as the track evolves (which is why the watch is in place). Tropical Storm Warnings are up from Edisto Beach southward.
Saturday will be a bit of a breezy but otherwise mostly clear day as sinking air around Beryl will preclude rain chances (common occurrence with tropical and hybrid systems).
Rain bands will begin overnight Saturday into Sunday as Beryl makes its move on the coast. Right now, projected landfall is right around 2am Monday near Jacksonville, FL according to the 5am track from the National Hurricane Center.
Seas will increasingly become hazardous Saturday. Beaches can expect an increasing risk of strong rip currents as Saturday wears on. Beach erosion is not totally out of the question and gusty winds (below tropical storm force) will be expected.
The best chance for isolated tornadoes Sunday (common in the northeast quadrant of landfalling tropical systems) will likely remain to the south of Charleston but cannot be totally ruled out.
Beryl is expected to keep rainy conditions around through most of next week as it will recurve in response to a sharp trough moving in from the west. Beryl will re-emerge over the Atlantic by Wednesday, possibly intensifying again into a tropical storm briefly as it heads out to sea.
Beryl is NOT expected to become a hurricane.