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Ash Wednesday Storm of 1962

1962 Nor'easter affecting the eastern U.S.

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Through Atlantic Ocean, Tide and Atmospheric pressure

Meteorological history and naming

On March 4, 1962, a large low-pressure area developed along a cold front off the southeast coast of the United States, with several ill-defined circulation centers. At the same time, a large ridge was over Atlantic Canada, and a powerful upper-level low was over the Ohio Valley. The upper-level low reached the North Carolina coast on March 6, which aided in the intensification of the frontal system, reaching a minimum barometric pressure of 979 mbar (28.9 inHg). From March 6–8, the storm drifted northeastward, but the ridge blocked quicker movement blocked by the ridge. The storm and ridge interaction produced a steep pressure gradient that produced hurricane-force wind gusts along the Mid-Atlantic coast. The storm also produced a 600 mi (970 km) long fetch of flow of winds from the Atlantic Ocean, building the height of the waves as high as 30 ft (9.1 m). Storm conditions diminished along the coast on March 9. The storm was unusual because of its slow movement, contrary to typical nor'easters.

In most areas, the storm peak occurred on March 7, which was the Christian holiday of Ash Wednesday, the first day of Lent that year. Outer Banks writer Aycock Brown named the coastal storm as the "Ash Wednesday Storm." In their Mariners Weather Log summary, the U.S. Weather Bureau referred to the weather system as the "Great Atlantic Coastal Storm." The storm is also known as the "Five High Storm" because it lingered off the Atlantic Coast of the northeast United States over a period of five high tides.

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