page_title: Hurricane Grace
section_title: Meteorological history
hierarchical_section_title: Hurricane Grace / Meteorological history
caption_attribution_description: English: Track map of Hurricane Grace and Hurricane Eight of the 1991 Atlantic hurricane season. The points show the location of the storm at 6-hour intervals. The colour represents the storm's maximum sustained wind speeds as classified in the Saffir-Simpson Hurricane Scale (see below), and the shape of the data points represent the nature of the storm, according to the legend below. Saffir–Simpson hurricane wind scale Tropical depression≤38 mph≤62 km/h Category 3111–129 mph178–208 km/h Tropical storm39–73 mph63–118 km/h Category 4130–156 mph209–251 km/h Category 174–95 mph119–153 km/h Category 5≥157 mph≥252 km/h Category 296–110 mph154–177 km/h Unknown Storm typeTropical cycloneSubtropical cycloneExtratropical cyclone / Remnant low / Tropical disturbance
context_page_description: Hurricane Grace was a Category 2 hurricane. It lasted only four days. It became part of another cyclone known as the Perfect Storm.
  Grace formed on October 26. At first, it was a subtropical cyclone. This means it was partially tropical and partially extratropical. It became a full tropical cyclone on October 27. It later reached winds of 105 miles per hour. The storm had a little effect on the island of Bermuda when it passed to the south. Another storm to the north made Grace turn east. The hurricane combined with the large circulation of the other low pressure system.
context_section_description: Grace began as a low pressure area in the middle of the atmosphere. It formed on October 23 south of Bermuda. Reports from a ship said that it was in the lower atmosphere by October 25. At first, the storm was like a subtropical cyclone. There were not many thunderstorms around its center. (For a storm to gain strength, strong thunderstorms need to build around it.) The system started being called a subtropical storm on October 26. A separate area of clouds near Bermuda slowly became involved with this storm. There started to be thunderstorms near the center of the storm. Because of this, on October 27, the storm became a tropical storm and was named "Grace".
  Grace continued to get larger. Information from satellites gave measures of the storm's strength. Based on that and reconnaissance reports, Grace was changed to a Category 1 hurricane. That is the lowest level on the Saffir-Simpson Hurricane Scale. The hurricane moved towards the northwest until an extratropical cyclone formed along a cold front on October 28. This storm quickly became stronger and very large. It eventually caused Grace to turn quickly to the east. Around the same time, Grace began to have an eye. Grace moved faster as it moved east. On October 29, it reached its highest strength. Its winds were at 100 miles per hour (161 kilometres per hour). Its minimum central barometric pressure was 980 mbar (hPa; 28.94 inHg). That made it a Category 2. The center of the hurricane passed 50 miles (80 kilometres) south of Bermuda. Bermuda was not affected much.
  Hurricane Grace turned northeast later that day. The cold front quickly came and overtook it. After that, it was no longer a tropical system. Grace moved north along the front. It combined with the large storm to the north. By the next day, Grace could not be seen any more.
caption: The tracks of Hurricane Grace, bottom, and the nor'easter, top
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