More than 170,000 people in Florida, Alabama, Georgia and the Carolinas were still without power early Monday after the remnants of Isaias pushed north, triggering floods in North Carolina on Sunday.

(MORE: North Carolina flooding triggers landslides)

The storm has been linked to at least four deaths, including two people killed by falling trees in Florida and Alabama.

Landfall and damage in Florida

Isaias came ashore late Friday as a Category 2 hurricane near Destin, Florida. Despite storm surge warnings beforehand, several major coastal routes were open and clear of debris by Saturday morning.

(MORE: Hurricane Isaias makes landfall near Destin, Florida, as a Category 2)

Still, hurricane-force winds tore the roof off a Pensacola hotel, and the city's mayor said the airport also sustained damage. The storm destroyed a boathouse in Destin and tore away part of a high-rise's facade in Panama City Beach.

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(MORE: Isaias leaves homes shredded along Florida’s Pensacola Beach)

In Escambia County, Sheriff Chip Simmons said a woman died when a tree fell on her home, and a man died from carbon monoxide poisoning after running a generator in his garage. Four of his family members, ages 4 to 72, were treated and are expected to survive.

Alabama impacts

Isaias, the first hurricane of the Atlantic season, pushed into Alabama with tropical-storm-force winds. Birmingham Fire Chief Cory Moon said one person died there when a tree fell on a house.

(MORE: Hurricane Isaias rips roofs off homes with residents huddled inside)

A second Alabama death came from a vehicle crash involving a downed tree in Barbour County, according to Josh Johnson of the state's emergency management agency. Authorities in Mobile, along Alabama's Gulf Coast, reported numerous downed trees and power lines.

Heavy rains cause problems in North Carolina

In Burke County, North Carolina, an unhoused male and female were camping when floodwaters from the Catawba River caught them off guard. They were rescued, along with their dog, according to a spokesperson for the county emergency management agency. Separately, a woman trapped inside her car in floodwaters was freed outside of Morganton.

In McDowell County, North Carolina, just west of Burke County, first responders said they dealt with five landslides and voluntary evacuations overnight Saturday into Sunday as they responded to flooded roads and streams overflowing their banks.

Nearly a dozen local weather stations in the western North Carolina county reported torrential 24-hour rainfall totals from about 5 to as much as 9.57 inches at the fire/rescue station in Enola.

Federal response

President Donald Trump approved an emergency declaration for Georgia, following similar declarations for Florida and Alabama, freeing up federal aid. Separately, the U.S. Energy Department authorized emergency releases of crude oil from the strategic petroleum reserve to offset supply disruptions caused by the storm.

This story includes reporting by The Associated Press.