The term impliesīoth poleward displacement of the cyclone and the conversion of theĬyclone's primary energy source from the release of latent heat ofĬondensation to baroclinic (the temperature contrast between warm andĬold air masses) processes. The eye, or light-wind center of a tropicalĮxtratropical: A term used in advisories and tropical summaries to indicate thatĪ cyclone has lost its "tropical" characteristics. Hurricane Center in Miami, Florida is responsible for trackingĮye: The roughly circular area of comparatively light winds thatĮither completely or partially surrounded by theĮyewall / Wall Cloud: An organized band or ring of cumulonimbus clouds that surround CompareĮastern North Pacific Basin: The portion of the North Pacific Ocean east of 140W. For locations on the right-hand side of the track, aĭirect hit occurs when the cyclone passes to within a distance equal (looking in the direction of motion), a direct hit occurs when theĬyclone passes to within a distance equal to the cyclone's The Northern Hemisphere and clockwise in the Southernĭirect Hit: A close approach of a tropical cycloneįor locations on the left-hand side of a tropical cyclone's track Honolulu, Hawaii is responsible for trackingĬyclone: An atmospheric closed circulation rotating counter-clockwise in Tightly curved inner bands of a tropical cyclone.Ĭentral North Pacific Basin: The region north of the Equator between 140W and theĬentral Pacific Hurricane Center (CPHC) in Penetration, satellite, radar, or synoptic data.Ĭentral Dense Overcast: A dense mass of clouds that covers the eyewall or the most Products, refers to the center position at the surface.Ĭenter / Vortex Fix: The location of the center of a The cyclone center position can vary with altitude. Usually defined by the location of minimum wind or minimum pressure. They also generally will not reflect the erratic motionĬenter: Generally speaking, the vertical axis of a Of all available data, may differ from values contained in stormĪdvisories. Positions and intensities, which are based on a post-storm assessment Minimum sea-level pressure at 6-hourly intervals. The best track contains theĬyclone's latitude, longitude, maximum sustained surface winds, and Location and intensity over its lifetime. Tropical cyclones prior to issuance of watches andīest Track: A subjectively-smoothed representation of a Advisories are also issued to describe: (a) Locations, intensity and movement, and precautions that should be Warnings in effect along with details concerning tropical cyclone P - q - r - s - t - u - v - w - x - y - zĪdvisory: Official information issued by tropical cyclone warning centersĭescribing all tropical cyclone watches and
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