Potential Tropical Cyclone 8 brings heavy rainfall to the Mid-Atlantic with millions under flood watch NBC NewsPossible Helene Prompts Warnings In North And South Carolina The Weather ChannelMaps: Updated spaghetti models, storm path for Potential Tropical Cyclone Eight WYFF4 GreenvilleFlooding rain, gusty winds batter North Carolina as Potential Tropical Cyclone 8 moves closer to coast Fox Weather 'Homegrown' storm approaches US coast. What are they and why are they a threat? USA TODAY