Complex sentence: Claudette's consistent variation in its path caused uncertainty over the strength and location of its final landfall, and because of this, no shelters were open during the passage of Claudette, forcing citizens to ride out the hurricane.
Split into simpler sentences: Claudette's consistent variation in its path caused uncertainty over the strength and location of its final landfall. Because of this, no shelters were open during the passage of Claudette, forcing citizens to ride out the hurricane.