Subtropical Storm Josephine has formed in the Atlantic and is expected to grow in intensity, according to coverage this week from the Orlando Sentinel reporting on National Hurricane Center (NHC) advisories. At the same time, the NHC is actively tracking a separate, second Atlantic system, making this a dual-concern situation for forecasters during the tail end of the 2026 hurricane season.
Subtropical storms occupy a meteorological middle ground — they draw energy from both atmospheric dynamics and ocean warmth rather than relying purely on warm sea-surface temperatures the way a fully tropical system does. Because of this hybrid structure, they can transition into fully tropical storms with relatively little warning if the right atmospheric conditions align, and their initial wind and rain fields tend to be broader and less organized than their purely tropical counterparts. Josephine's forecast growth suggests the atmospheric environment is currently supportive, though the NHC had not, as of the Orlando Sentinel's reporting, issued watches or warnings for any land areas in connection with either system.
The simultaneous tracking of two Atlantic systems in the second half of October is uncommon but not unprecedented. The 2026 Atlantic season has already been an active one, and forecasters have noted that elevated sea-surface temperatures in parts of the Atlantic basin have extended the window during which named storms can organize and sustain themselves.
What makes this particular situation worth closer attention for preparedness-minded readers is the subtropical classification itself. Because subtropical storms are often underweighted in public perception compared to hurricanes or even tropical storms, they tend to generate less pre-storm preparation in coastal and near-coastal communities. Historically, the transition from subtropical to tropical status has occasionally caught residents off-guard — the 2007 subtropical-to-tropical evolution of Subtropical Storm Andrea into a tropical system is one documented example of rapid reclassification affecting forecast tracks. Readers who track storm supplies and generator readiness through resources like our portable power station reviews may note that late-season storms, including subtropical ones, can produce extended inland rain events and localized flooding that stress the same infrastructure a named hurricane would.
The NHC is expected to issue updated advisories on both systems as the week progresses, and the Orlando Sentinel noted that the second system's development potential was being assessed but had not yet warranted a formal designation at the time of publication.
