Tropical Cyclone Terminology: North Atlantic & Pacific

Tropical cyclones are powerful rotating storms that form over warm ocean waters. The specific name given to these storms often depends on their geographical location of origin.

Storm Naming Conventions

• Hurricane: This term is used for tropical cyclones that form in the North Atlantic Ocean, the northeastern Pacific Ocean (east of the International Date Line), and the southeastern Pacific Ocean (east of 160E longitude).
• Typhoon: This term applies to tropical cyclones occurring in the northwestern Pacific Ocean (west of the International Date Line).
• Tornado/Twister: These are fundamentally different phenomena. Tornadoes are violently rotating columns of air extending from a thunderstorm cloud to the ground, typically occurring over land. They are not classified as tropical cyclones.

Origin Specifics

The question specifically asks for the term used for tropical cyclones originating in the north eastern Pacific and north Atlantic regions. Based on the standard meteorological definitions:

• Storms in the North Atlantic are called Hurricanes.
• Storms in the north eastern Pacific are also called Hurricanes.

Therefore, the correct term encompassing both regions mentioned is Hurricane.