A tropical depression is a tropical cyclone that reaches maximum sustained winds below . The Japan Meteorological Agency (JMA) is the main weather forecasting agency in the Pacific Northwest Pacific basin, where it measures sustained winds by averaging wind speeds in a period of ten minutes. The basin is limited to the north of the equator between the 100th meridian east and the 180th meridian.
Background
The Northwest Pacific basin covers a vast area in the Pacific Ocean, located north of the equator, between 100°E and 180°E. Several weather agencies monitor this basin, however it is officially monitored by the Japan Meteorological Agency (JMA, RSMC Tokyo), who is responsible for forecasting, naming and issuing warnings for tropical cyclones. Unofficially, the Joint Typhoon Warning Center also monitors the basin, however these warnings measures 1-minute sustained wind speeds, comparing their scale to the Saffir–Simpson scale. The JMA uses a simpler scale on classifying tropical cyclones adapted by the ESCAP/WMO Typhoon Committee measuring 10-minute sustained wind speeds, ranging from a tropical depression, tropical storm, severe tropical storm and typhoon. Furthermore, the JMA divides the typhoon category into three sub-categories for domestic purposes – a strong typhoon, very strong typhoon and violent typhoon.
This article covers a list of systems developing in the Northwest Pacific basin that were classified by the category of a tropical depression by the JMA, JTWC and PAGASA. The category of a tropical depression ranges with sustained winds of below 34 knots (63 km/h; 39 mph). Just to note that this article only lists tropical depressions that were named, designated and systems that affected any land masses.
Systems 1980s NameSystem datesSustainedwind speedsPressureAreas affectedDamage(USD)Deaths Atring Philippines $5 million 61 1990s NameSystem datesSustainedwind speedsPressureAreas affectedDamage(USD)Deaths Hilda (Auring) Malaysia $1.3 million 5 2000s NameSystem datesSustainedwind speedsPressureAreas affectedDamage(USD)Deaths Auring Philippines $498,318 2 2010s NameSystem datesSustainedwind speedsPressureAreas affectedDamage(USD)Deaths 04W None None None Josie Philippines, Taiwan $87.4 million 16 24W (Luis) Taiwan, East China $34 million 7 01W (Amang) Kiribati, Marshall Islands, Caroline Islands, Philippines $6.04 million 10 03W (Chedeng) < Caroline Islands, Philippines $23 thousand None TD Yap, Palau None None TD Caroline Islands None None TD None None None TD Japan, Korean Peninsula None None 04W (Egay) < Yap, Philippines, Taiwan, East China None None Goring Philippines, Taiwan, Ryukyu Islands None None TD Philippines None None TD None None None TD 1004 hPa (29.65 inHg) Ryukyu Islands, Taiwan, East China None None TD Philippines None None TD Caroline Islands None None TD Ryukyu Islands, Korean Peninsula None None Marilyn None None None TD Japan None None TD Philippines None None TD None None None TD None None None TD Mariana Islands None None TD Caroline Islands None None
2020s NameSystem datesSustainedwind speedsPressureAreas affectedDamage(USD)Deaths Carina < Philippines, Taiwan None None TD None None None Gener None None None 12W Japan None None TD None None None Ofel Philippines, Vietnam None 20W None None None TD None None None TD None None None TD < Philippines
See also
Typhoon Pacific typhoon season Pacific typhoon season
References
External links Japan Meteorological Agency