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Tropical Storm Matmo (2008)
Encyclopedia
Tropical Storm Matmo formed to the east of Manila
in the Philippines
as a tropical disturbance on May 13. Early the next day, the Joint Typhoon Warning Center
(JTWC) issued a Tropical Cyclone Formation Alert
on the developing system while later that day the Japan Meteorological Agency
(JMA) classified the disturbance as a weak tropical depression and started to issue advisories on it. The JTWC then designated the depression as Tropical Depression 04W while the JMA started to issue full advisories on the storm. On May 15, the tropical depression intensified into a tropical storm and was named Matmo by RSMC Tokyo. Later that day the Philippine Atmospheric, Geophysical and Astronomical Services Administration
issued their first advisory on Matmo and assigned the local name Dindo. The JTWC upgraded the system to a tropical storm later that day. It then intensified into a severe tropical storm the next day while the JTWC issued their final advisory on Matmo as they thought the storm had become extratropical
. However, the JMA kept issuing advisories on Matmo, until the storm dissipated the next day. There was no impact reported from Tropical Storm Matmo.
Late on May 13, 2008, a tropical disturbance formed about 550 km (341.8 mi), to the east of Manila
in the Philippines
. The disturbance was located in an area of low vertical wind shear
and had a low-level circulation center
which had started to consolidate. The Joint Typhoon Warning Center
(JTWC) then issued a Tropical Cyclone Formation Alert
on the disturbance early the next day, as deep convection
was building near to the low pressure area. Later that day both the JTWC and the Japan Meteorological Agency
(JMA) upgraded the disturbance to a tropical depression, with the JTWC designating it as Tropical Depression 04W. This was because the system had become more consolidated and had a good outflow
.
Early on May 15, as the storm was moving towards the northwest, the JMA upgraded the tropical depression to a Tropical Storm and named it Matmo. The Philippine Atmospheric, Geophysical and Astronomical Services Administration
(PAGASA) then designated the storm as Tropical Depression Dindo. Later that day Matmo rapidly tracked towards the northeastern boundary of PAGASA's area of responsibility as it had started to interact with a mid-latitude trough
. The JTWC then reported that the cyclone had intensified into a tropical storm and had reached its peak intensity with winds of 75 km/h (45 mph). Early on May 16, both PAGASA and the JTWC issued their final advisories on the storm as it approached the edge of PAGASA's Area of responsibility, with the JTWC reporting that Matmo was now extratropical
. However, the JMA continued to issue advisories on the storm at this time and reported that it had reached ten-minute peak wind speeds of 95 km/h (60 mph), which made Matmo a severe tropical storm. Though, within their next advisory, the JMA downgraded Matmo to a tropical storm and reported that it had weakened into a tropical depression early the next day before dissipating later that day.
issued warnings for the, Naha, Moji
and Yokohama
areas of Japan. However, there was no impact reported from either Japan or the Philippines.
The name Matmo was submitted to the ESCAP/WMO Typhoon Committee, by the United States of America, for use from January 1, 2004 and means heavy rain in the Chamorro language
. This came after the name Chataan
was retired, following the 2002 Pacific typhoon season
. The Philippine Atmospheric, Geophysical and Astronomical Services Administration
(PAGASA) also assigned the local name of Dindo to Matmo, which was last assigned by PAGASA, in the 2004 Pacific typhoon season
.
Manila
Manila is the capital of the Philippines. It is one of the sixteen cities forming Metro Manila.Manila is located on the eastern shores of Manila Bay and is bordered by Navotas and Caloocan to the north, Quezon City to the northeast, San Juan and Mandaluyong to the east, Makati on the southeast,...
in the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
as a tropical disturbance on May 13. Early the next day, 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...
(JTWC) issued a Tropical Cyclone Formation Alert
Tropical Cyclone Formation Alert
A Tropical Cyclone Formation Alert is a bulletin released by the U.S. Navy-operated Joint Typhoon Warning Center in Honolulu, Hawaii or the Naval Maritime Forecast Center in Norfolk, Virginia, warning of the possibility of a tropical cyclone forming from a tropical disturbance that has been...
on the developing system while later that day the Japan Meteorological Agency
Japan Meteorological Agency
The or JMA, is the Japanese government's weather service. Charged with gathering and reporting weather data and forecasts in Japan, it is a semi-autonomous part of the Ministry of Land, Infrastructure and Transport...
(JMA) classified the disturbance as a weak tropical depression and started to issue advisories on it. The JTWC then designated the depression as Tropical Depression 04W while the JMA started to issue full advisories on the storm. On May 15, the tropical depression intensified into a tropical storm and was named Matmo by RSMC Tokyo. Later that day the Philippine Atmospheric, Geophysical and Astronomical Services Administration
Philippine Atmospheric, Geophysical and Astronomical Services Administration
The Philippine Atmospheric, Geophysical and Astronomical Services Administration is a Philippine national institution dedicated to provide flood and typhoon warnings, public weather forecasts and advisories, meteorological, astronomical, climatological, and other specialized information and...
issued their first advisory on Matmo and assigned the local name Dindo. The JTWC upgraded the system to a tropical storm later that day. It then intensified into a severe tropical storm the next day while the JTWC issued their final advisory on Matmo as they thought the storm had become extratropical
Extratropical cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are a group of cyclones defined as synoptic scale low pressure weather systems that occur in the middle latitudes of the Earth having neither tropical nor polar characteristics, and are connected with fronts and...
. However, the JMA kept issuing advisories on Matmo, until the storm dissipated the next day. There was no impact reported from Tropical Storm Matmo.
Meteorological history
Manila
Manila is the capital of the Philippines. It is one of the sixteen cities forming Metro Manila.Manila is located on the eastern shores of Manila Bay and is bordered by Navotas and Caloocan to the north, Quezon City to the northeast, San Juan and Mandaluyong to the east, Makati on the southeast,...
in the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
. The disturbance was located in an area of low vertical wind shear
Wind shear
Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere...
and had a low-level circulation center
Low pressure area
A low-pressure area, or "low", is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence which occur in upper levels of the troposphere. The formation process of a low-pressure area is known as...
which had started to consolidate. 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...
(JTWC) then issued a Tropical Cyclone Formation Alert
Tropical Cyclone Formation Alert
A Tropical Cyclone Formation Alert is a bulletin released by the U.S. Navy-operated Joint Typhoon Warning Center in Honolulu, Hawaii or the Naval Maritime Forecast Center in Norfolk, Virginia, warning of the possibility of a tropical cyclone forming from a tropical disturbance that has been...
on the disturbance early the next day, as deep convection
Atmospheric convection
Atmospheric convection is the result of a parcel-environment instability, or temperature difference, layer in the atmosphere. Different lapse rates within dry and moist air lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to...
was building near to the low pressure area. Later that day both the JTWC and the Japan Meteorological Agency
Japan Meteorological Agency
The or JMA, is the Japanese government's weather service. Charged with gathering and reporting weather data and forecasts in Japan, it is a semi-autonomous part of the Ministry of Land, Infrastructure and Transport...
(JMA) upgraded the disturbance to a tropical depression, with the JTWC designating it as Tropical Depression 04W. This was because the system had become more consolidated and had a good outflow
Outflow (meteorology)
Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather...
.
Early on May 15, as the storm was moving towards the northwest, the JMA upgraded the tropical depression to a Tropical Storm and named it Matmo. The Philippine Atmospheric, Geophysical and Astronomical Services Administration
Philippine Atmospheric, Geophysical and Astronomical Services Administration
The Philippine Atmospheric, Geophysical and Astronomical Services Administration is a Philippine national institution dedicated to provide flood and typhoon warnings, public weather forecasts and advisories, meteorological, astronomical, climatological, and other specialized information and...
(PAGASA) then designated the storm as Tropical Depression Dindo. Later that day Matmo rapidly tracked towards the northeastern boundary of PAGASA's area of responsibility as it had started to interact with a mid-latitude trough
Trough (meteorology)
A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts.Unlike fronts, there is not a universal symbol for a trough on a weather chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked...
. The JTWC then reported that the cyclone had intensified into a tropical storm and had reached its peak intensity with winds of 75 km/h (45 mph). Early on May 16, both PAGASA and the JTWC issued their final advisories on the storm as it approached the edge of PAGASA's Area of responsibility, with the JTWC reporting that Matmo was now extratropical
Extratropical cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are a group of cyclones defined as synoptic scale low pressure weather systems that occur in the middle latitudes of the Earth having neither tropical nor polar characteristics, and are connected with fronts and...
. However, the JMA continued to issue advisories on the storm at this time and reported that it had reached ten-minute peak wind speeds of 95 km/h (60 mph), which made Matmo a severe tropical storm. Though, within their next advisory, the JMA downgraded Matmo to a tropical storm and reported that it had weakened into a tropical depression early the next day before dissipating later that day.
Preparations, impact and naming
In preparation for Tropical Storm Matmo, the Japan Meteorological AgencyJapan Meteorological Agency
The or JMA, is the Japanese government's weather service. Charged with gathering and reporting weather data and forecasts in Japan, it is a semi-autonomous part of the Ministry of Land, Infrastructure and Transport...
issued warnings for the, Naha, Moji
Moji-ku, Kitakyushu
is a ward of Kitakyūshū, Fukuoka Prefecture, Japan. It is the former city of Moji which was one of five cities merged to create Kitakyūshū in 1963. It faces the city of Shimonoseki across the Kanmon Straits between Honshū and Kyūshū....
and Yokohama
Yokohama
is the capital city of Kanagawa Prefecture and the second largest city in Japan by population after Tokyo and most populous municipality of Japan. It lies on Tokyo Bay, south of Tokyo, in the Kantō region of the main island of Honshu...
areas of Japan. However, there was no impact reported from either Japan or the Philippines.
The name Matmo was submitted to the ESCAP/WMO Typhoon Committee, by the United States of America, for use from January 1, 2004 and means heavy rain in the Chamorro language
Chamorro language
Chamorro is a Malayo-Polynesian language, spoken on the Mariana Islands by about 47,000 people Chamorro (Chamorro: Fino' Chamoru or simply Chamoru) is a Malayo-Polynesian (Austronesian) language, spoken on the Mariana Islands (Guam, Rota, Tinian, and Saipan) by about 47,000 people Chamorro...
. This came after the name Chataan
Typhoon Chataan
Typhoon Chataan was a powerful and destructive typhoon which killed 54 people from Chuuk to Japan in the western Pacific Ocean....
was retired, following the 2002 Pacific typhoon season
2002 Pacific typhoon season
A Tropical Cyclone Formation Alert was issued on July 19 for a Tropical Disturbance that was located east of the international Date Line. The Next day the Disturbance crossed the international date line and was classified as a Tropical Depression by the JMA. The JMA then upgraded the depression to...
. The Philippine Atmospheric, Geophysical and Astronomical Services Administration
Philippine Atmospheric, Geophysical and Astronomical Services Administration
The Philippine Atmospheric, Geophysical and Astronomical Services Administration is a Philippine national institution dedicated to provide flood and typhoon warnings, public weather forecasts and advisories, meteorological, astronomical, climatological, and other specialized information and...
(PAGASA) also assigned the local name of Dindo to Matmo, which was last assigned by PAGASA, in the 2004 Pacific typhoon season
2004 Pacific typhoon season
The 2004 Pacific typhoon season has no official bounds; it ran year-round in 2004, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November...
.
See also
- 2008 Pacific typhoon season2008 Pacific typhoon seasonThe 2008 Pacific typhoon season has no official bounds; it runs year-round in 2008, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November...
- Typhoons in the PhilippinesTyphoons in the PhilippinesTyphoons in the Philippines refer in general to tropical cyclones that enter the Philippine area of responsibility and affect the Philippines. Locally they are called bagyo...
- Timeline of the 2008 Pacific typhoon seasonTimeline of the 2008 Pacific typhoon seasonThis timeline documents all the storm formations, strengthening, weakening, landfalls, extratropical transitions, as well as dissipation during the 2008 Pacific typhoon season. The 2008 Pacific typhoon season officially started on January 1, 2008 and ended on January 1, 2009. The first tropical...