Tropical Storm Arthur (2008)
Encyclopedia
Tropical Storm Arthur was the first Atlantic tropical storm
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...

 that formed during the month of May since 1981. The first tropical cyclone of the 2008 Atlantic hurricane season
2008 Atlantic hurricane season
The 2008 Atlantic hurricane season was a very active hurricane season with sixteen named storms formed, including eight that became hurricanes and five that became major hurricanes. The season officially started on June 1 and ended on November 30. These dates conventionally delimit the period of...

, the storm formed on May 30 from the interaction of two tropical waves and the remnants of the eastern Pacific
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 Tropical Storm Alma
Tropical Storm Alma
Tropical Storm Alma of the 2008 Pacific hurricane season was the easternmost forming Pacific tropical cyclone on record and the first tropical storm on record to strike the Pacific coast of Nicaragua. In the spring of 2009, the WMO retired the name Alma and replaced it with Amanda for use in the...

, which had crossed into the western Caribbean Sea
Caribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean located in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles....

. The system quickly organized and was named Tropical Storm Arthur on May 31, while crossing the shore of Belize
Belize
Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...

. It dissipated two days later over the Yucatán Peninsula
Yucatán Peninsula
The Yucatán Peninsula, in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel...

 in Mexico. Arthur and its remnants triggered severe flooding which killed a reported nine people and affected 100,000 more in Belize. Damage was light to moderate, estimated at $78 million (2008 USD).

Meteorological history

By May 29, 2008, the western Caribbean Sea
Caribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean located in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles....

 became tropically active due to the presence of two tropical waves and Tropical Storm Alma
Tropical Storm Alma
Tropical Storm Alma of the 2008 Pacific hurricane season was the easternmost forming Pacific tropical cyclone on record and the first tropical storm on record to strike the Pacific coast of Nicaragua. In the spring of 2009, the WMO retired the name Alma and replaced it with Amanda for use in the...

, which was located in the east Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

. The system generated a broad surface low pressure system, as well as clusters of convection. The next day, Alma made landfall on Nicaragua
Nicaragua
Nicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...

, pulling deep tropical moisture into the region. Upper level outflow was spreading outwards from the tropical storm with a high pressure system over the Caribbean. A surface 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...

 developed and extended from inland Honduras
Honduras
Honduras is a republic in Central America. It was previously known as Spanish Honduras to differentiate it from British Honduras, which became the modern-day state of Belize...

 to just south of the Cayman Islands
Cayman Islands
The Cayman Islands is a British Overseas Territory and overseas territory of the European Union located in the western Caribbean Sea. The territory comprises the three islands of Grand Cayman, Cayman Brac, and Little Cayman, located south of Cuba and northwest of Jamaica...

, which sparked further development of strong convection.

On May 31, the remnants of Alma were situated along the coast of Belize
Belize
Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...

 as a 1004 mbar low pressure system. A broad upper-level ridge was anchored over the Gulf of Honduras
Gulf of Honduras
The Gulf or Bay of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Belize, Guatemala, and Honduras. From north to south, it runs for approximately 200 km from Dangriga, Belize, to La Ceiba, Honduras....

, which covered the entire region and maintained deep tropical moisture. Satellite imagery and a NOAA buoy reported sustained tropical storm-force winds. Despite moving ashore, the system was named Tropical Storm Arthur about 45 mi (72.4 km) north-northwest of Belize City
Belize City
Belize City is the largest city in the Central American nation of Belize. Unofficial estimates place the population of Belize City at 70,000 or more. It is located at the mouth of the Belize River on the coast of the Caribbean. The city is the country's principal port and its financial and...

. In post-analysis, it was determined that Arthur had developed more than 12 hours earlier, late on May 30, and made landfall early on May 31 with 45 mph (75 km/h) winds in northeastern Belize. While over land, Arthur maintained minimal tropical storm force winds, concentrated primarily over open waters to the east and northeast. Despite being over land for several hours, the storm maintained a fairly organized structure. The storm contained a large low-level center, accompanied by convective banding, and was developing new convective cells. Initially, it was thought Arthur would continue generally westward due to a ridge to its north, and later re-intensify in the Bay of Campeche.

The associated thunderstorm activity became separated from the center of circulation, and early on June 1, the center became difficult to locate due to becoming disorganized. It remained a tropical storm over land for nearly 24 hours before weakening to a tropical depression later that day. While drifting southwestward over land, Arthur weakened further, and the National Hurricane Center issued its last advisory on the system late on June 1. By June 4, the remnants of Arthur were diminishing over southeastern Mexico without any redevelopment. Thunderstorms briefly redeveloped two days later, as its associated circulation crossed over the Bay of Campeche into Veracruz, although it dissipated soon after.

Impact and records

In preparation for the storm, ports were closed in the Mexican
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 state of Quintana Roo
Quintana Roo
Quintana Roo officially Estado Libre y Soberano de Quintana Roo is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 10 municipalities and its capital city is Chetumal....

, while residents and tourists were encouraged to take precautions in coastal areas. Also, ports were closed on the islands of Cozumel
Cozumel
Cozumel is an island in the Caribbean Sea off the eastern coast of Mexico's Yucatan Peninsula, opposite Playa del Carmen, and close to the Yucatan Channel. Cozumel is one of the ten municipalities of the state of Quintana Roo...

, Isla Mujeres
Isla Mujeres
Isla Mujeres is one of the ten municipalities of the Mexican state of Quintana Roo. The municipality, located in the northeastern corner of the state is mostly on the mainland and has a municipal seat of the same name; Isla Mujeres...

 and in Chetumal
Chetumal
Chetumal is a city on the east coast of the Yucatán Peninsula in Mexico. It is the capital of the state of Quintana Roo and the municipal seat of the Municipality of Othón P. Blanco...

. Small boats were restricted from leaving some ports, but evacuations were deemed unnecessary. Tropical storm warnings
Tropical cyclone warnings and watches
Warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate...

 were issued as soon as the storm was first classified for the coast of Belize and the coast of Mexico south of Cabo Catoche, and remained in effect until Arthur weakened to a tropical depression.

While crossing Belize, Arthur dropped heavy rainfall, estimated as high as 15 in (381 mm). The storm produced rainfall as far south as Belize City
Belize City
Belize City is the largest city in the Central American nation of Belize. Unofficial estimates place the population of Belize City at 70,000 or more. It is located at the mouth of the Belize River on the coast of the Caribbean. The city is the country's principal port and its financial and...

 and kicked up strong surf on the island of Ambergris Caye
Ambergris Caye
Ambergris Caye, pronounced "am-BER-gris", is the largest island of Belize located northeast of the country in the Caribbean Sea. Though administered as part of the Belize District, the closest point on the mainland is part of the Corozal District....

. Winds from Arthur forced the closure of two of Mexico's three main oil exporting ports in the Gulf of Mexico due to rough seas. The storm's remnants, combined with recent heavy rains from Tropical Storm Alma, triggered flash flooding and caused rivers in southern and northern Belize to overflow. The flooding damaged one bridge and one highway, and several other bridges were under water. One village was evacuated, and shelters in Corozal and Orange Walk were opened. In rural areas the electricity was cut off due to safety issues. Dozens were stranded on their roof due to high water, and work to repair an important highway was halted when flood waters washed away the repaired section. Papaya
Papaya
The papaya , papaw, or pawpaw is the fruit of the plant Carica papaya, the sole species in the genus Carica of the plant family Caricaceae...

 plantations, shrimp farms and rice crops were also affected by the unsettled weather.

In all, about 100,000 people were affected by the flooding, and nine fatalities were reported; five of which were directly attributed to Arthur. A total of 714 houses were damaged, and damage in Belize was estimated at $78 million (2008 USD). British helicopters helped rescue stranded people following the storm, and Mexico provided a helicopter to help carry supplies to areas affected by the flooding. Prime Minister
Prime minister
A prime minister is the most senior minister of cabinet in the executive branch of government in a parliamentary system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime...

 Dean Barrow
Dean Barrow
Dean Oliver Barrow is Prime Minister of Belize and leader of the United Democratic Party. An attorney by trade, he served as Deputy Prime Minister and Minister of Foreign Affairs from 1993 to 1998 and was then Leader of the Opposition until the UDP won the February 2008 election...

 declared a disaster area in southern Belize's Stann Creek Valley. Additionally, the government rushed food, water and clothing to about 13,000 people.

When Arthur later moved over Mexico, it dropped heavy rainfall, with a maximum 24-hour total of 8.34 in (212 mm) in Pijijiapan
Pijijiapan
Pijijiapan is a town and municipality in the Mexican state of Chiapas, on the coast of the Pacific Ocean about midway between the border with the state of Oaxaca and the international frontier with Guatemala. Pijijiapan reported a 2005 census population of 46,949 persons. It has a land area of...

, Chiapas
Chiapas
Chiapas officially Estado Libre y Soberano de Chiapas is one of the 31 states that, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 118 municipalities and its capital city is Tuxtla Gutierrez. Other important cites in Chiapas include San Cristóbal de las...

. There were no reports of damage or deaths in the country.
Arthur was the first tropical storm to form in May in the Atlantic since Tropical Storm Arlene
Tropical Storm Arlene (1981)
Tropical Storm Arlene was a rare off-season tropical cyclone that hit Cuba and the Bahamas in May 1981. Its formation was unusual, originating from a tropical disturbance that crossed from the eastern Pacific Ocean into the Caribbean Sea; few Atlantic hurricanes develop in this manner...

 in 1981
1981 Atlantic hurricane season
The 1981 Atlantic hurricane season officially began on June 1, 1981, and lasted until November 30, 1981. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. The 1981 season was high in activity with 18 tropical depressions and...

. Since then other storms have formed in May, such as Andrea
Subtropical Storm Andrea (2007)
Subtropical Storm Andrea was the first named storm and first subtropical cyclone of the 2007 Atlantic hurricane season. It developed out of a previously non-tropical low on May 9 about 150 miles northeast of Daytona Beach, Florida, three weeks before the official start of the season...

 in 2007, but they were subtropical.

See also

  • Other tropical cyclones named Arthur
    Tropical Storm Arthur
    The name Arthur has been used for five tropical cyclones in the Atlantic Ocean. It is one of three names used for five tropical storms with none of them becoming a hurricane...

  • Timeline of the 2008 Atlantic hurricane season
    Timeline of the 2008 Atlantic hurricane season
    The 2008 Atlantic hurricane season was a well above-average year in which sixteen named storms formed, making it the fourth most active season ever recorded. An average season has eleven tropical storms, six hurricanes and two major hurricanes...

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