No es que sea muy habitual, pero ya ocurrió con Álex en 2016. ¿Estamos ante otra situación atípica en el Atlántico, con la formación de un ciclón tropical fuera de temporada? Así lo demuestra la reciente salida determinista 12Z del GFS.

Ryan | weather.us
@RyanMaue

GFS continues to develop a (sub)-tropical area of low pressure off the SE Coast focused in recent forecasts off Carolinas by mid-next week.
Something to watch over weekend for heavy rain threat from Bahamas to Florida. 
(GFS: https://weathermodels.com )

Ryan | weather.us
@RyanMaue

Processed storm tracks for EPS 46-day from Monday.  Not seeing much thru end of July in the Gulf of Mexico, Caribbean or tropical Atlantic. 

Will monitor this tomorrow as we get another 46-day update at https://weathermodels.com

Philip Klotzbach
@philklotzbach

0 Atlantic named storm formations so far this June.  NHC forecasts no Atlantic named storm development in next 5 days.  The last time that June had 0 Atlantic named storms was 2014.  #hurricane

Philip Klotzbach
@philklotzbach

In the satellite era (since 1966), 25 out of 52 years (48%) have had 0 Atlantic named storm formations in June.

NWS Eastern Region
@NWSEastern

The @NHC_Atlantic is closely watching an area of low pressure located a few hundred mi southeast of the NC coast. Conditions are favorable for a tropical depression to form over the next few of days as the system drifts northwestward & meanders near the NC coast over the weekend.

Michael Lowry
@MichaelRLowry

For the first time this #hurricane season, both weekly tropical ocean temperatures and Caribbean wind shear are running near average. Notable developments, especially as we approach historical peak season activity.