Heavy showers and thunderstorms continuing to produce rain rates of 2 to 4 inches per hour along the north shore of Kauai.
Falling in behind the rain is a cold front from the north which will drop temperatures and led to snow in the higher elevations Monday.
Parishes across the southern part of the state under a flash flood watch include Orleans, Ascension, Assumption, East Baton Rouge, Feliciana, Iberville, Livingston, Jefferson, Lafourche, Plaquemines, St. Bernard, Terrebonne, Tangipahoa, St. Charles, Pointe Coupee, St. Tammany and Washington.
Torrential downpours are expected, and flash flooding will be possible across portions of the western Carolinas and northeast Georgia through the morning and into the evening.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Both the flash flood watches and the coastal flood warnings are scheduled to last through Monday afternoon, the weather service said.
Due to the heavy rains, a brown water advisory has also been issued for Kauai.
A flash flood watch continues state-wide through 6 a.m. Sunday.
The weather service says the bulk of the storms are expected to move through the area just before or during the morning commute. It will be chilly Monday and Tuesday until a warm front moves in on Wednesday.