Feb. 21 (UPI) -- Blizzard conditions are anticipated across a dozen states, from the Mid-Atlantic to New England, with coastal areas especially vulnerable amid a severe weather outlook.

Communities situated near the Atlantic Ocean's shoreline are most vulnerable to severe winter weather. Some of the nation's largest cities, including Philadelphia, New York and Boston, are located well within areas that could experience major winter storm conditions.

Those conditions include a blizzard caused by a powerful offshore low-pressure system that is producing high winds and heavy snowfall near its outer edges while centered off the Eastern Seaboard.

Blizzard warnings are in effect into Monday along coastal areas, from New Jersey and Delaware to the southern New England states.