Beyond or outside of the tropics.
The part of the Northern Hemisphere that has atmospheric circulation disconnected from tropical circulation processes. The intertropical convergence zone (ICTZ), which delineates the two regions, changes on an annual cycle.
A term used in advisories and tropical summaries to indicate that a cyclone has lost its "tropical" characteristics. This usually happens once a system moves from mid latitudes to high latitudes and changes from a "warm core" to a "cold core" system.
A term used to describe a formerly tropical storm or hurricane that has lost its tropical characteristics. Extratropical storms can still be powerful, but no longer possess a warm core and other tropical characteristics.
A term used in advisories and tropical summaries to indicate that a cyclone has lost its "tropical" characteristics. The term implies both poleward displacement of the cyclone and the conversion of the cyclone's primary energy source from the release of latent heat of condensation to baroclinic (the temperature contrast between warm and cold air masses) processes. It is important to note that cyclones can become extratropical and still retain winds of hurricane or tropical storm force.
In meteorology, typical of occurrences poleward of the belt of tropical easterlies.