Tropical Storm Isaias expected to strengthen to hurricane, heads to Carolinas

Tropical Storm Isaias is expected to strengthen to a Category 1 hurricane as it approaches northeastern South Carolina and southern North Carolina on Monday.

Hurricane warnings have been issued for parts of the Carolinas and tropical storm alerts stretch from Florida to New England.

MORE: Tropical Storm Isaias to bring dangerous storm surge: What you need to know

Isaias is forecast to bring torrential rain, flash flooding and storm surge to the East Coast, as well as dangerous winds to the Northeast.

PHOTO: A satellite image shows Tropical storm Isaias off the southeast coast, Aug. 3, 2020 at 12:00 UTC. (AMMB/NOAA via AFP/Getty Images)

PHOTO: A satellite image shows Tropical storm Isaias off the southeast coast, Aug. 3, 2020 at 12:00 UTC. (AMMB/NOAA via AFP/Getty Images)

PHOTO: A satellite image shows Tropical storm Isaias off the southeast coast, Aug. 3, 2020 at 12:00 UTC. (AMMB/NOAA via AFP/Getty Images)

Carolinas

As Isaias approaches the Carolinas, storm surge may reach 5 feet, especially near the South Carolina-North Carolina border. Tornadoes are also possible in the Carolinas.

PHOTO: Bo Bramlett looks at the ocean on the morning of Aug. 3, 2020 in Myrtle Beach, S.C., as Tropical Storm Isaias continued to move north along the eastern United States. (Sean Rayford/Getty Images)

PHOTO: Bo Bramlett looks at the ocean on the morning of Aug. 3, 2020 in Myrtle Beach, S.C., as Tropical Storm Isaias continued to move north along the eastern United States. (Sean Rayford/Getty Images)

PHOTO: Bo Bramlett looks at the ocean on the morning of Aug. 3, 2020 in Myrtle Beach, S.C., as Tropical Storm Isaias continued to move north along the eastern United States. (Sean Rayford/Getty Images)
PHOTO: Waves driven by Tropical Storm Isaias crash over the jetty on the north side of the Palm Beach Inlet in Palm Beach Shores, Aug. 2, 2020. (Lannis Waters/Palm Beach Post via USA Today Network)

PHOTO: Waves driven by Tropical Storm Isaias crash over the jetty on the north side of the Palm Beach Inlet in Palm Beach Shores, Aug. 2, 2020. (Lannis Waters/Palm Beach Post via USA Today Network)

PHOTO: Waves driven by Tropical Storm Isaias crash over the jetty on the north side of the Palm Beach Inlet in Palm Beach Shores, Aug. 2, 2020. (Lannis Waters/Palm Beach Post via USA Today Network)

North Carolina Gov. Roy Cooper declared a state of emergency on Friday. Some coastal communities are under evacuation orders.

The rainfall total may reach seven inches, Cooper said Monday.

He urged residents to stay inside during heavy winds and warned them to be mindful of downed trees and powerlines.

PHOTO: Traffic travels down I-74/76 in Leland, N.C. as Tropical Storm Isaias moves towards North Carolina, Aug. 3, 2020. (Kevin Blevins/Star News via USA Today Network)

PHOTO: Traffic travels down I-74/76 in Leland, N.C. as Tropical Storm Isaias moves towards North Carolina, Aug. 3, 2020. (Kevin Blevins/Star News via USA Today Network)

PHOTO: Traffic travels down I-74/76 in Leland, N.C. as Tropical Storm Isaias moves towards North Carolina, Aug. 3, 2020. (Kevin Blevins/Star News via USA Today Network)

The last hurricane to make landfall in North Carolina was Dorian in 2019. The last hurricane to make landfall in South Carolina was Matthew in 2016.

Northeast

After landfall in the Carolinas, Isaias will weaken and make its way up the East Coast.

Isaias will reach the Mid-Atlantic by early morning Tuesday and the Northeast by Tuesday night.

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MORE: Atlantic hurricane season underway: Experts predict above-normal season

Over six inches of rain are forecast for the Mid-Atlantic.

The heaviest rainfall is expected to hit along the Interstate 95 corridor from Washington, D.C., to Philadelphia to New York City.

Damaging winds are also forecast for New Jersey, New York City and Long Island.

Wind gusts may climb over 70 mph on the Jersey Shore, which could cause widespread power outages.

MORE: ABC News chief meteorologist Ginger Zee explains how hurricanes form

 Rip currents and storm surge are also expected at the Jersey Shore, New Jersey Gov. Phil Murphy warned Monday, recommending that residents stay inside on Tuesday.

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New York City is expected to get hit by tropical-storm force winds, storm surge and several inches of rain, city officials said.

Lower Manhattan is particularly vulnerable to storm surge, New York City Mayor Bill de Blasio said Monday. Emergency management crews are deploying flood protection measures, he said.

"We are not taking any chances at all," de Blasio said.

Tropical Storm Isaias expected to strengthen to hurricane, heads to Carolinas originally appeared on abcnews.go.com

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