A Flash Flood Watch is in effect for Shelton and the rest of southwestern Connecticut Friday through 10 p.m.

A cold front moving into the area will interact with moisture streaming ahead of Hurricane Arthur, which is now moving quickly up the Atlantic Seaboard after impacting the North Carolina coast.

A total of 1 to 3 inches of rainfall is expected in Fairfield County, with locally higher amounts possible. Most of the rain should fall this afternoon and tonight.

The main impacts are expected to be flooding of urbanized areas and of roadways, particularly in locations with poor drainage.

Arthur moving up the coast

Meanwhile, Arthur has been downgraded to a Category 1 hurricane, with maximum sustained winds of 90 mph.

It is moving quickly up the East Coast (23 mph as of 11 a.m.), veering to the east, and will be well offshore when it reaches New England. The main impact in this region will be felt on Cape Cod and the islands (Martha’s Vineyard and Nantucket).

In Connecticut, in addition to the rain, the biggest issue will be strong rip currents in Long Island Sound. Anyone venturing into the water during the next day or two should do so with caution, staying close to the shore.