Surface Map

As the coastal storm (Zipper Low) develops today, heavy rains will hit the eastern Carolina’s. So far this morning, heavy rains have been impacting eastern South Carolina with up to 3 inches of rain. Flash Flood Watches have been issued for parts of South Carolina and North Carolina already.

As the system develops, bands of heavy rains and thunderstorms will rotate into South Carolina and North Carolina today, however by this afternoon, the rains should end across South Carolina.

Rainfall of up to 5 inches in a short period of time is possible today, especially across eastern North Carolina. Most areas will see 0.50″ to 3.00″ of rain and some street flooding due to the quick nature of the rain.

Excessive Rainfall Map

Scattered thunderstorms will once again develop this afternoon from eastern New England through the Ohio Valley. As we saw yesterday, the storms were slow movers producing tremendous heavy rains and downpours which resulted in street flooding and small creeks rising. On the other side of things, the storms will bring relief to the heat by lowering temperatures in the evening.

The storms will be concentrated in in several areas and could impact the I-95 corridor from New York City to Philadelphia. That area is where a trough has settled in add sea breeze fronts will interact with that trough resulting in an area where storms will develop. Other storms will develop through the Mountains again and back into the Ohio Valley along the corridor of moisture that is coming up from the tropical low over Louisiana.

The real relief is a few days away when a cold front will move through bringing a change to cooler and less humid weather this weekend. Yea!

Check out the Satellite Image and Radars to get a better idea about the storms.

Satellite Image

Radar

Surface Map

Simulated Radar for this Evening