The seventeenth tropical cyclone, thirteenth named storm, and eighth hurricane of the season, Michael developed from a non-tropical system to the southwest of Bermuda on October 15.

As the intensity of Michael was equivalent to a Category 1 hurricane during landfall, high winds were reported throughout Atlantic Canada, especially in Newfoundland.

High winds caused minor structure damage across Newfoundland, confined to vinyl siding peeled off, shattered windows, and unroofed houses.

The storm remained stationary over warm water, with sea surface temperatures around 28 °C (82 °F), while it continued to gain additional tropical characteristics.

[1] By 0000 UTC on October 17, the transition was completed and Michael was reclassified as a tropical storm as supported by satellite classifications via the Dvorak technique.

[1] A well-defined eye quickly developed early on October 17 as Michael began to strengthen and continued to organize.

Breaking into cooler water, Michael began its extratropical transition while accelerating to the northeast towards Newfoundland, which prevented significant weakening.

[6] The sudden intensification was determined to have been as a result of baroclinic effects as it interacted with an incoming trough, which provided additional energy to counter the general weakening of hurricanes while in the high latitudes over sea-surface temperatures around 16 °C (61 °F).

[7] At 2300 UTC on October 19, shortly after completing its transition to an extratropical cyclone, Michael made landfall near Parsons Harbour, Newfoundland with winds of 155 km/h (100 mph).

[1] Because it was unknown that Michael became extratropical before landfall, it was initially considered the first tropical cyclone to strike Newfoundland since Hurricane Luis in 1995.

These areas reported significant power outages and minor structural damage; vinyl siding was peeled off, windows were shattered, and roof shingles were torn off in some localized locations.

[7] Wind damage also occurred in the St. John's Metropolitan Area, where a Sobeys store in Conception Bay South had broken windows.

[7][15] Several offshore buoys and ships reported high winds and low barometric pressure,[1] as well as waves of up to 16.9 m (55 ft).