The blocking ridge forced the extratropical low to track toward the southeast and later to the west. Around that time, a ridge extended from the Appalachian Mountains northeastward to Greenland, with a strong high pressure center over eastern Canada. On October 28, the front spawned an extratropical low to the east of Nova Scotia. The Perfect Storm originated from a cold front that exited the east coast of the United States. More than 38,000 people were left without power, and along the coast high waves inundated roads and buildings.Įxtratropical cyclone, remnant low, tropical disturbance, or monsoon depression To the north, more than 100 homes were affected in Maine, including the vacation home of then- President George H. In Massachusetts, where damage was heaviest, over 100 homes were destroyed or severely damaged. Most of the damage occurred while the storm was extratropical, after waves up to 30 feet (10 m) struck the coastline from Nova Scotia to Florida and southeastward to Puerto Rico. The tropical system weakened, striking Nova Scotia as a tropical storm before dissipating.ĭamage from the storm totaled over $200 million (1991 USD) and thirteen people were killed in total, six of which were an outcome of the sinking of Andrea Gail. The system was the twelfth and final tropical cyclone, the eighth tropical storm, and fourth hurricane in the 1991 Atlantic hurricane season. It later received the name "the Perfect Storm" (playing off the common expression) after a conversation between Boston National Weather Service forecaster Robert Case and author Sebastian Junger. On November 1, the system evolved into a full-fledged hurricane, with peak sustained winds of 75 miles per hour (120 km/h), although the National Hurricane Center left it unnamed to avoid confusion amid media interest in the precursor extratropical storm. It executed a loop off the Mid-Atlantic states and turned toward the northeast. Moving over warmer waters, the system transitioned into a subtropical cyclone before becoming a tropical storm. The storm lashed the east coast of the United States with high waves and coastal flooding before turning to the southwest and weakening. Forced southward by a ridge to its north, it reached its peak intensity as a large and powerful cyclone. The initial area of low pressure developed off the coast of Atlantic Canada on October 28. The 1991 Perfect Storm, also known as The No-Name Storm (especially in the years immediately after it took place) and the Halloween Gale/Storm, was a nor'easter that absorbed Hurricane Grace, and ultimately evolved into a small unnamed hurricane itself late in its life cycle. Part of the 1991 Atlantic hurricane season Mid-Atlantic states, Northeastern United States, Eastern Canada (972 mbar (28.7 inHg) while extratropical) Satellite image of the unnamed hurricane at peak intensity on November 1
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