Relentless onshore winds and potentially unprecedented rainfall will lead to a double whammy of freshwater and oceanwater flooding over the next several days for many states on the U.S. East Coast, despite the fact that all of those states will be well west of Hurricane Joaquin as it follows a track several hundred miles offshore over the Atlantic.

Flash flooding is already ongoing and has become serious in a few locations, including the Charleston, South Carolina metro.

Right through this weekend, a feed of rich tropical moisture from the Caribbean Sea and the western Atlantic will be involved in this soaking setup as a front stalls near the East Coast. This is likely to result in life-threatening and potentially historic rainfall, especially in parts of South Carolina and North Carolina.

Read the article “Hurricane Joaquin Update: Carolinas Face Life-Threatening, Potentially Historic Flash Flooding” on weather.com.