Invest (meteorology)
Encyclopedia
An invest in meteorology
(short for investigation or to investigate, alternatively written INVEST) is a designated area of disturbed weather that is being monitored for tropical cyclone
development. Invests are designated by three separate forecast centers: the National Hurricane Center
, Central Pacific Hurricane Center
and Joint Typhoon Warning Center
. The designation of a system as an invest does not necessarily correspond to any particular likelihood of development of the system into a tropical cyclone.
, Central Pacific Hurricane Center
and Joint Typhoon Warning Center
. The designation of a system as an invest does not necessarily correspond to any particular likelihood of development of the system into a tropical cyclone. Invests are numbered from 90 to 99, followed by L in the Atlantic
, E and C in the East and Central Pacific respectively, or W in the West Pacific
; the Joint Typhoon Warning Center
also issues unofficial warnings for the Australian cyclone region, designating tropical invests with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E. Invests in the North Indian Ocean cyclone basin are also labelled by the JTWC, and are suffixed with "A" if they form in the Arabian Sea
and with "B" if they form in the Bay of Bengal
. Numbers are rotated within the season and are re-used as necessary (the next invest after 99 would be numbered 90). If the system develops into a tropical cyclone, it is reclassified as the next name/number on the list.
Meteorology
Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...
(short for investigation or to investigate, alternatively written INVEST) is a designated area of disturbed weather that is being monitored for tropical cyclone
Tropical cyclone
A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Tropical cyclones strengthen when water evaporated from the ocean is released as the saturated air rises, resulting in condensation of water vapor...
development. Invests are designated by three separate forecast centers: the National Hurricane Center
National Hurricane Center
The National Hurricane Center , located at Florida International University in Miami, Florida, is the division of the National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th...
, Central Pacific Hurricane Center
Central Pacific Hurricane Center
The Central Pacific Hurricane Center of the United States National Weather Service is the official body responsible for tracking and issuing tropical cyclone warnings, watches, advisories, discussions, and statements for the Central North Pacific Basin...
and Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
. The designation of a system as an invest does not necessarily correspond to any particular likelihood of development of the system into a tropical cyclone.
Designation
Invests are designated by three separate forecast centers: the National Hurricane CenterNational Hurricane Center
The National Hurricane Center , located at Florida International University in Miami, Florida, is the division of the National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th...
, Central Pacific Hurricane Center
Central Pacific Hurricane Center
The Central Pacific Hurricane Center of the United States National Weather Service is the official body responsible for tracking and issuing tropical cyclone warnings, watches, advisories, discussions, and statements for the Central North Pacific Basin...
and Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
. The designation of a system as an invest does not necessarily correspond to any particular likelihood of development of the system into a tropical cyclone. Invests are numbered from 90 to 99, followed by L in the Atlantic
Atlantic hurricane season
The Atlantic hurricane season is the period in a year when hurricanes usually form in the Atlantic Ocean. Tropical cyclones in the North Atlantic are called hurricanes, tropical storms, or tropical depressions. In addition, there have been several storms over the years that have not been fully...
, E and C in the East and Central Pacific respectively, or W in the West Pacific
Pacific typhoon
A typhoon is a mature tropical cyclone that develops in the northwestern part of the Pacific Ocean between 180° and 100°E. This region is referred to as the northwest Pacific basin. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern , central , and...
; the Joint Typhoon Warning Center
Joint Typhoon Warning Center
The Joint Typhoon Warning Center is a joint United States Navy – United States Air Force task force located at the Naval Maritime Forecast Center in Pearl Harbor, Hawaii...
also issues unofficial warnings for the Australian cyclone region, designating tropical invests with the "S" suffix when they form west of 135°E, and the "P" suffix when they form east of 135°E. Invests in the North Indian Ocean cyclone basin are also labelled by the JTWC, and are suffixed with "A" if they form in the Arabian Sea
Arabian Sea
The Arabian Sea is a region of the Indian Ocean bounded on the east by India, on the north by Pakistan and Iran, on the west by the Arabian Peninsula, on the south, approximately, by a line between Cape Guardafui in northeastern Somalia and Kanyakumari in India...
and with "B" if they form in the Bay of Bengal
Bay of Bengal
The Bay of Bengal , the largest bay in the world, forms the northeastern part of the Indian Ocean. It resembles a triangle in shape, and is bordered mostly by the Eastern Coast of India, southern coast of Bangladesh and Sri Lanka to the west and Burma and the Andaman and Nicobar Islands to the...
. Numbers are rotated within the season and are re-used as necessary (the next invest after 99 would be numbered 90). If the system develops into a tropical cyclone, it is reclassified as the next name/number on the list.
External links
- Navy/NRL Tropical Cyclone Page - Current tropical cyclones and INVESTS worldwide