Timeline: Where and when you will see impacts from the strengthening nor'easter this weekend

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Long Island readying for powerful Nor'easter that's barreling up the East Coast

Long Island is expecting to see heavy rain, strong winds and dangerous surf conditions from a nor'easter that's making its way up the East Coast into the Northeast. FOX Weather Storm Specialist Mike Seidel reports from Greenport, New York, ahead of the most severe impacts, which will begin taking shape Friday evening. 

THE TAKEAWAY

• Friday: The nor'easter will continue to consolidate and intensify. Winds will start to increase along the East Coast, with rain moving in by the evening.
• Saturday: The storm will bring widespread heavy rain across the coast and areas inland. Winds along the coast will be gusting over 60-70 mph as the storm approaches peak strength.
• Sunday: The nor'easter will maintain intensity and impacts will continue across the region.
• Monday: Rain will linger but the storm will finally begin to dissipate.

A strengthening nor'easter is threatening more than 40 million people as it begins its charge up the East Coast, lashing North Carolina's Outer Banks and the Mid-Atlantic coast with more intense wind, severe beach erosion and high tide flooding.

See when and where the worst impacts will be:

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The storm is expected to intensify as it tracks north along the coast through the weekend, bringing prolonged rain, strong winds and coastal flooding through the weekend, with the potential for power outages across impacted areas from North Carolina to Maine, particularly for communities closest to the coast. 

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Friday: Winds intensify, rain begins late afternoon through the evening

Impacts: The nor'easter will continue to consolidate and intensify as it moves from east of the Outer Banks to east of the Delmarva Peninsula. Winds will increase along the Mid-Atlantic to New England coasts, and the first rain will begin to fall during the evening hours.

• Outer Banks & Mid-Atlantic: Gusts hit 40-50 mph. Just off the coast winds could be approaching 60 mph. Offshore waves peak at 15-18 feet. Trapped water prevents drainage, escalating coastal flooding during high tides.
• New Jersey Shore: Onshore gusts reach 35-45 mph, with widespread moderate high-tide flooding.
• Long Island to Southern New England & Boston: Light rain during the day increases to moderate rain by early evening. This will start in southeastern Massachusetts then spread toward Boston, Rhode Island, eastern Connecticut and Long Island. Northeast wind gusts of 35-45 mph during the day build to 50+ mph by Friday night.
• NYC: Rain may start in the afternoon, but likely holds off until the evening. Gusts up to 40 mph will be likely. First significant coastal flooding round expected during high tide 11pm-midnight. 

Future radar Friday evening.

(FOX Weather)

Saturday: Worst of the nor'easter impacts begin Saturday morning

Impacts: Peak Nor'easter conditions, heavy rain bands, high winds, and severe coastal flooding erosion.

• Boston Metro & Coastal Massachusetts: Pounding rain, street flooding, and powerful wind gusts of 50-60 mph late in the evening.
• Long Island & NYC Corridor: Strong northeast winds (40-50 mph gusts) driving heavy wave action along south-facing ocean beaches, with beach erosion and tidal flooding along Long Island Sound and South Shore bays starting in the morning hours. Monitoring for coastal flooding in Long Island Sound into the East River.
• Outer Banks & New Jersey: Waves remain extremely high (15–18 ft) with ongoing severe beach erosion and persistent inundation during high tide cycles.

Future radar Saturday morning.

(FOX Weather)

Heavy rain will soak much of the Northeast through the evening as the storm stalls.

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Future radar Saturday evening.

(FOX Weather / FOX Weather)

Sunday: Nor'easter stalls as heavy rain, coastal flood threats increase

Impacts: The Nor'easter will slingshot toward the Jersey shore. Strong winds will blast the Tri-State area, southeast New England, and even as far north as Vermont and New Hampshire. The storm will rapidly weaken, and the winds will drop during the afternoon. By Sunday night, most areas will see wind gusts drop below 40 mph. Rain will continue to fall all day and night across the Northeast.

• Eastern Mass, Connecticut, Rhode Island: Continued rain bands and very gusty winds. Wind gusts could approach 60 mph. High tides combined with trapped water keep the threat for coastal flooding and severe beach loss elevated through both high-tide cycles morning and evening. Rain continues to intensify increasing inland flood threat.
• New Jersey, NYC and Long Island: The worst conditions of the storm are likely during the morning hours as the low moves in. Wind gusts over 50 mph are likely and over 65 mph, possible. The wind will be accompanied by heavy rain and significant coastal flooding during the midday high tide. The winds will drop below 50 mph during the afternoon and below 40 mph after dark.
• Delaware to the Outer Banks: 40+ mph winds in Maryland and Delaware, less winds to the south. Rain begins to clear out, but water levels remain high, keeping moderate flooding in place through the morning high tide.

Sunday morning future radar.

(FOX Weather)

A Level 2 out of 4 flash flood threat covers much of the New England coast through Monday.

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Monday and beyond: Nor'easter finally weakens, producing light rain

Impacts: Storm weakening, clearing inland conditions, and lingering high surf. 

New Jersey & NYC: After moving into New Jersey on Sunday night, the storm will rapidly weaken before looping back over the waters between New Jersey and Long Island on Monday. The weakened system will continue to produce light rain across the Northeast, but the winds will be much weaker than they were over the weekend. Max gusts will be in the 20–30 mph range. The last high-tide cycle to feature coastal flooding is also expected on Monday.

New England: Coastal waters and beaches will see slowly subsiding seas, though rough surf, beach erosion, and minor residual high-tide flooding will take a couple of days to fully clear. Persistent light rain will continue to pinwheel around the Nor'easter.

On Tuesday, what's left of the storm will spread light rain into northern New England while the Mid-Atlantic and Tri-State Area dry out.