Climate & Environment

Coastal storm off East Coast may become Subtropical Storm Josephine

Forecasters are watching a powerful low-pressure system off the Southeast coast that could strengthen into a named storm. Its slow movement could prolong high winds and flooding for beaches and coastal communities.

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What happened

A powerful non-tropical low is forming in the Atlantic off the U.S. East Coast, and the National Hurricane Center has been monitoring its development. Forecasters say it could become a nor'easter or a subtropical or tropical storm, which would be named Josephine. Its slow movement could prolong effects on vulnerable beaches and coastal communities.

Why it matters

Dangerous surf and overwash are expected along the North Carolina Outer Banks, and high winds and flooding threaten the East Coast. The storm's slow movement could extend these effects.

Timeline

  1. Oct 17, 6:05 AM ET: A coastal storm was reported as possibly brewing off the East Coast, potentially becoming a nor'easter or tropical storm.
  2. Oct 18, 8:58 AM ET: The National Hurricane Center said a powerful non-tropical low was expected to develop later Sunday or overnight, with a 30% chance of subtropical development.
  3. Oct 18, 3:22 PM ET: Forecasts warned of high winds and flooding as the storm developed, and it would be named Josephine if it became a named storm.
  4. Oct 19, 6:59 AM ET: A subtropical cyclone could form in the middle to latter part of the week, possibly bringing Subtropical Storm Josephine.

Coverage

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