The March 1–3, 2018 nor'easter caused major impacts as well as significant coastal flooding in the Northeastern, Mid-Atlantic and Southeastern United States.

It originated as the northernmost low of a stationary front over the Midwest on March 1, which moved eastward into the Northeast later that night.

It peaked later that day and brought hurricane-force winds to coastal New England before gradually moving out to sea by March 3.

[10] Tracking into colder air near the border between the U.S. and Canada, snow broke out in the eastern half of the Midwest; the Weather Prediction Center (WPC) began issuing storm summaries later that day.

[11] Overnight into the early morning hours of March 2, a new low formed and rapidly strengthened off the coast of New Jersey, while snow began to slowly increase in coverage near Pennsylvania and southern New York.

[12] Rapid deepening of the low continued as it moved slowly westward, before it bottomed out around 975 millibars (28.8 inHg) or so later that evening.

[16] Pilots from a flight bound to Washington Dulles International Airport reported that nearly every passenger vomited due to extreme turbulence from the storm.

[25] Dozens of cars were destroyed in Baltimore City due to trees toppling over from a combination of saturated ground and wind.

[26] When leaving to attend the funeral of Billy Graham, President Donald Trump could not fly out of Joint Base Andrews and had to depart from Dulles Airport instead.

[8] In Sussex County, the storm brought rain and high winds on March 2, with gusts reaching 50 miles per hour (80 km/h).

The Cape May-Lewes Ferry delayed a morning departure and suspended service for the rest of the day on March 2.

Due to high winds, repairs did not begin until March 3 and power restoration could take several days.

[32] In the Lehigh Valley and Pocono Mountains regions of Pennsylvania, the storm brought heavy snow and wind on March 2, which led to dozens of car accidents.

Winds toppled a tractor trailer along Interstate 78 near Hamburg and brought a tree and wires down onto an unoccupied vehicle in Exeter Township.

[16] At the Jersey Shore, the storm caused minor flooding and road closures during the high tide on the morning of March 2.

Flooding also caused lane closures along portions of Route 35 in Brick and Belmar while floodwaters covered roads in Neptune and Highlands.

Blizzard warnings were issued in portions of Upstate New York, where 50 mph (80 km/h) winds and more than a foot of snow was forecasted.

[37] The heaviness of the wet snow that fell in Western New York was a major factor in prolonged blackouts in the area.

[1][39][2] Boston recorded a peak gust of 70 miles per hour (110 km/h) while experiencing heavy rain and coastal flooding from the storm.

[16] A woman in Woburn suffered a severe leg injury when she was pinned to the ground by a falling tree while picking up her son from elementary school.