“Subtropical Storm “KAREN”

[GordMay]

“Subtropical Storm “KAREN”
“Karen becomes the Atlantic’s northernmost named storm on record” ~ by Bob Henson, for Yale Climate Connections
➥ https://yaleclimateconnections.org/2...orm-on-record/

“Three storms — two tropical, one subtropical* [‘Karen’] — were plowing across the Atlantic and eastern Pacific on Friday. None is expected to become a hurricane, but one of the tropical storms was bringing torrential rains and localized flash flooding to the Northern Leeward Islands, while the other could do much the same across parts of the U.S. Southwest this weekend. And a non-tropical storm could end up being the biggest U.S. weather maker of the bunch as it brings high winds, heavy rain, and potential major coastal flooding from the Carolinas to New Jersey...”

Convection, associated with “Karen”, has dissipated overnight, leaving the system a swirl of low- to mid-level clouds. The cyclone will be moving over even colder waters of the North Atlantic, during the next 12 to 24 hours, and organized convection is not expected to return.
Therefore, 'Karen' has lost its designation as a subtropical cyclone.

“Subtropical Storm KAREN Advisory Archive” ~ NHC
➥ https://www.nhc.noaa.gov/archive/2025/KAREN.shtml?

* Subtropical storms are hybrid systems, with characteristics of both tropical storms, which get energy from warm ocean waters, and extratropical storms, which draw power from temperature differences in the atmosphere.