Tropical cyclone basins
Seven basins have traditionally been used to classify regions where
tropical cyclones originate. These include the northern Indian Ocean
(Arabian Sea and Bay of Bengal), the eastern and western parts of the
northern Pacific, the southwestern Pacific, the southwestern and
southeastern Indian Oceans, and the north Indian Ocean. The north Indian
Ocean is the least active, while the western Pacific is the most active. Each
year, an average of 86 tropical cyclones with the intensity of tropical
storms form worldwide, 47 of which reach hurricane/typhoon strength and
20 of which become intense tropical cyclones, super typhoons, or major
hurricanes (at least Category 3 intensity).
The North Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico are
all part of this region in the Northern Hemisphere. The number of tropical
cyclones that form in this region ranges from one to more than twenty-five
per year[6]. The majority of Atlantic tropical storms and hurricanes form
between June 1 and November 30. As one of the Regional Specialized
Meteorological Centres for tropical cyclones as defined by the World
Meteorological Organization[7], the United States National Hurricane
Center (NHC) monitors the Atlantic Basin and issues reports, watches, and
warnings about tropical weather systems. On average, 14 named storms (of
tropical storm or higher strength) occur each season, with an average of 7
becoming hurricanes and 3 becoming major hurricanes. Each season, the
climatological peak of activity occurs around September 10.
Storms frequently affect Bermuda, Central America, the Caribbean Islands,
the Atlantic coast and Gulf Coast of the United States, Mexico, and Central
America. Also occasionally affected are Venezuela, the four Atlantic
Canada provinces, and the Atlantic Macaronesian islands. Cape Verde-type
hurricanes, which form near the Cape Verde islands off the west coast of
, Africa, account for many of the Atlantic storms with greater intensity. The
only known systems to impact mainland Europe as a (sub)tropical cyclone
in the NHC study period beginning in 1851 are Hurricane Vince, which
made landfall on the southwestern coast of Spain as a tropical depression
in October 2005, and Subtropical Storm Alpha, which made landfall on the
coast of Portugal as a subtropical storm in September 2020. The majority
of tropical cyclone activity in the basin occurs during the hurricane season,
which runs from May 15 to November 30 each year.[12] Between 1971
and 2005, the basin saw an average of 15 to 16 tropical storms, 9
hurricanes, and 4 to 5 major hurricanes (storms with a Category 3 intensity
or greater).[12] Storms that form here typically have an impact on western
Mexico, but they also less frequently do so on the continental United
States (particularly California) or northern Central America. The most
recent database does not contain any hurricanes that have hit California;
However, a storm that produced winds exceeding 75 mph (65 kn;) in San
Diego is mentioned in historical records from 1858. 121 km/h) (marginal
hurricane force), although it is unknown whether the storm actually made
landfall.[13] California was hit by gale-force winds by tropical storms in
1939, 1976, and 1997.
The Central Pacific Hurricane Center's area of responsibility (AOR) begins
at the boundary with the National Hurricane Center's AOR (at 140 degrees
West) and ends at the International Date Line, where the Northwestern
Pacific begins.[14] The hurricane season in the North Central Pacific runs
annually from June 1 to November 30;[15] The Central Pacific Hurricane
Center tracks the storms that develop or move into the defined area of
responsibility.[14] The CPHC was previously tasked with monitoring
tropical activity in the basin.[14] The Joint Typhoon Warning Center is its
current name.
Since there are no large, contiguous landmasses in the basin, direct hits
and landfalls are uncommon; Central Pacific hurricanes are uncommon,
with 4 to 5 storms forming or moving there annually[15]. nonetheless, they
Seven basins have traditionally been used to classify regions where
tropical cyclones originate. These include the northern Indian Ocean
(Arabian Sea and Bay of Bengal), the eastern and western parts of the
northern Pacific, the southwestern Pacific, the southwestern and
southeastern Indian Oceans, and the north Indian Ocean. The north Indian
Ocean is the least active, while the western Pacific is the most active. Each
year, an average of 86 tropical cyclones with the intensity of tropical
storms form worldwide, 47 of which reach hurricane/typhoon strength and
20 of which become intense tropical cyclones, super typhoons, or major
hurricanes (at least Category 3 intensity).
The North Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico are
all part of this region in the Northern Hemisphere. The number of tropical
cyclones that form in this region ranges from one to more than twenty-five
per year[6]. The majority of Atlantic tropical storms and hurricanes form
between June 1 and November 30. As one of the Regional Specialized
Meteorological Centres for tropical cyclones as defined by the World
Meteorological Organization[7], the United States National Hurricane
Center (NHC) monitors the Atlantic Basin and issues reports, watches, and
warnings about tropical weather systems. On average, 14 named storms (of
tropical storm or higher strength) occur each season, with an average of 7
becoming hurricanes and 3 becoming major hurricanes. Each season, the
climatological peak of activity occurs around September 10.
Storms frequently affect Bermuda, Central America, the Caribbean Islands,
the Atlantic coast and Gulf Coast of the United States, Mexico, and Central
America. Also occasionally affected are Venezuela, the four Atlantic
Canada provinces, and the Atlantic Macaronesian islands. Cape Verde-type
hurricanes, which form near the Cape Verde islands off the west coast of
, Africa, account for many of the Atlantic storms with greater intensity. The
only known systems to impact mainland Europe as a (sub)tropical cyclone
in the NHC study period beginning in 1851 are Hurricane Vince, which
made landfall on the southwestern coast of Spain as a tropical depression
in October 2005, and Subtropical Storm Alpha, which made landfall on the
coast of Portugal as a subtropical storm in September 2020. The majority
of tropical cyclone activity in the basin occurs during the hurricane season,
which runs from May 15 to November 30 each year.[12] Between 1971
and 2005, the basin saw an average of 15 to 16 tropical storms, 9
hurricanes, and 4 to 5 major hurricanes (storms with a Category 3 intensity
or greater).[12] Storms that form here typically have an impact on western
Mexico, but they also less frequently do so on the continental United
States (particularly California) or northern Central America. The most
recent database does not contain any hurricanes that have hit California;
However, a storm that produced winds exceeding 75 mph (65 kn;) in San
Diego is mentioned in historical records from 1858. 121 km/h) (marginal
hurricane force), although it is unknown whether the storm actually made
landfall.[13] California was hit by gale-force winds by tropical storms in
1939, 1976, and 1997.
The Central Pacific Hurricane Center's area of responsibility (AOR) begins
at the boundary with the National Hurricane Center's AOR (at 140 degrees
West) and ends at the International Date Line, where the Northwestern
Pacific begins.[14] The hurricane season in the North Central Pacific runs
annually from June 1 to November 30;[15] The Central Pacific Hurricane
Center tracks the storms that develop or move into the defined area of
responsibility.[14] The CPHC was previously tasked with monitoring
tropical activity in the basin.[14] The Joint Typhoon Warning Center is its
current name.
Since there are no large, contiguous landmasses in the basin, direct hits
and landfalls are uncommon; Central Pacific hurricanes are uncommon,
with 4 to 5 storms forming or moving there annually[15]. nonetheless, they
