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 conver [..]

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 th [..]

Extratropical storms are powered by the temperature difference between warm and cold air, but Hurricanes are powered by warm ocean water. Hurricanes can become extratropical as they move north, but th [..]

A term used in advisories and tropical summaries to indicate that a tropical 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 contr [..]

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 [..]

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 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 conver [..]