Lee made landfall in Nova Scotia on Saturday afternoon as a post-tropical cyclone after transitioning from a hurricane and slightly weakening earlier in the day. The storm produced winds near hurricane-force as it reached shore, forecasters from the National Hurricane Center said, and it caused tropical storm conditions along the province and coastal Massachusetts.
All tropical storm warnings related to Lee were discontinued as of late Sunday morning.
The storm meant New England was expected to experience weather similar to what occurs during a nor’easter, said Andrew Loconto, a meteorologist with the National Weather Service in Boston. During nor’easters, which typically occur in late fall and through the winter months, large waves crash ashore and often flood some coastal roads.
The diminished storm produced strong tropical-storm-force winds that extended far from its epicenter and reached the coastline.
As of 11 a.m. on Sunday, Lee was about 135 miles west-northwest of Port Aux Basques in Newfoundland, Canada, and was moving northeast at 22 m.ph.
When a hurricane becomes post-tropical.
As the storm headed north over cooler water, Lee transitioned from a hurricane to a post-tropical cyclone on Saturday. Tropical systems like hurricanes get their energy from warm ocean temperatures and their cores expel that energy upward into the atmosphere.
A typical storm system that moves across the United States will get energy from competing air masses of cooler and warmer air. When forecasters say that a storm has transitioned to post-tropical, it has morphed into a more typical storm system with warm and cold fronts.
This process typically weakens a storm and expands how far the damaging winds stretch.
Reporting was contributed by Sydney Cromwell, Johnny Diaz, Melina Delkic, Amanda Holpuch, Mike Ives, Orlando Mayorquin, Anastasia Marks, Eduardo Medina, Chris Stanford, John Yoon and Derrick Bryson Taylor.