Hurricane Brenda (1973)
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Hurricane Brenda of August 1973 was the first
tropical cyclone A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its locat ...
on record to make
landfall Landfall is the event of a storm moving over land after being over water. More broadly, and in relation to human travel, it refers to 'the first land that is reached or seen at the end of a journey across the sea or through the air, or the fact ...
in the
Mexican state A Mexican State (), officially the Free and Sovereign State (), is a constituent federative entity of Mexico according to the Constitution of Mexico. Currently there are 31 states, each with its own constitution, government, state governor, a ...
of
Campeche Campeche, officially the Free and Sovereign State of Campeche, is one of the 31 states which, with Mexico City, make up the Administrative divisions of Mexico, 32 federal entities of Mexico. Located in southeast Mexico, it is bordered by the sta ...
. The
tropical wave A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which ...
that spawned Brenda moved off the west coast of Africa on August 9, and uneventfully traversed the Atlantic. By August 18, an associated area of low pressure developed sufficient convective activity to be declared a tropical depression. Later that day, the system intensified into a tropical storm before moving inland over the Yucatan Peninsula. Brenda had moved back over water by August 21 and began to quickly intensify, with an eye forming later that day. The storm peaked as an upper-end Category 1 hurricane with winds of before making landfall in Campeche. The hurricane rapidly weakened after moving over land and dissipated the following day. Brenda made two landfalls in Mexico: first in the Yucatan and later in Campeche. Little damage resulted from the storm throughout the Yucatan Peninsula. However, severe damage took place in areas near Brenda's second landfall. A total of 10 people were killed by the hurricane and over 2,000 more were left homeless. Flooding caused by Brenda was considered to be the worst in over 25 years in some places.


Meteorological history

Hurricane Brenda originated from a
tropical wave A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which ...
that moved off the western coast of Africa on August 9; however, the initial wave quickly weakened upon entering the Atlantic Ocean. By August 13, the wave began to regenerate as it passed through the
Lesser Antilles The Lesser Antilles is a group of islands in the Caribbean Sea, forming part of the West Indies in Caribbean, Caribbean region of the Americas. They are distinguished from the larger islands of the Greater Antilles to the west. They form an arc w ...
, producing scattered shower and thunderstorm activity. Several days later,
convection Convection is single or Multiphase flow, multiphase fluid flow that occurs Spontaneous process, spontaneously through the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoy ...
associated with the system consolidated into a central, organized mass and on August 18, the system had become sufficiently organized to be declared a tropical depression. Early the next day, the depression strengthened into Tropical Storm Brenda following reports of gale-force winds from ships in the vicinity of the storm. Prior to its first
landfall Landfall is the event of a storm moving over land after being over water. More broadly, and in relation to human travel, it refers to 'the first land that is reached or seen at the end of a journey across the sea or through the air, or the fact ...
, Brenda suddenly intensified, with the central
barometric pressure Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as , which is equivalent to 1,013.2 ...
decreasing to 992 mbar (hPa; 29.29 inHg) and winds reached . The storm moved inland roughly north of
Cozumel Cozumel (; ) is an island and municipality in the Caribbean Sea off the eastern coast of Mexico's Yucatán Peninsula, opposite Playa del Carmen. It is separated from the mainland by the Cozumel Channel and is close to the Yucatán Channel. The ...
at the northern edge of the Yucatan Peninsula on August 19. Roughly 24 hours after landfall, the center of Brenda passed directly over the city of
Mérida, Yucatán Mérida (, ) is the capital of the List of states of Mexico, Mexican state of Yucatán, and the largest city in southeastern Mexico. The city is also the seat of the Mérida Municipality, eponymous municipality. It is located slightly inland fro ...
. By this time, a strong
ridge A ridge is a long, narrow, elevated geomorphologic landform, structural feature, or a combination of both separated from the surrounding terrain by steep sides. The sides of a ridge slope away from a narrow top, the crest or ridgecrest, wi ...
over southern Texas and northern Mexico caused the storm to take an unusual southwest turn. Later on August 20, the center of Brenda moved into the
Gulf of Mexico The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...
, specifically the
Bay of Campeche The Bay of Campeche (), or Campeche Sound, is a bight in the southern area of the Gulf of Mexico, forming the north side of the Isthmus of Tehuantepec. It is surrounded on three sides by the Mexican states of Campeche, Tabasco and Veracruz. The ...
. Once back over water, Brenda began to quickly intensify, attaining hurricane status later that day. The next day, a well-defined eye had developed and the storm attained its peak intensity as a high-end Category 1 hurricane with winds of and a minimum pressure of 977 mbar (hPa; 28.85 inHg). Around this time, the tropical storm force winds extended out to the north and to the south. The storm made landfall later that day near
Ciudad del Carmen Ciudad del Carmen or Carmen is a city in the southwest of the Mexican state of Campeche. Ciudad del Carmen is located at on the southwest of Carmen Island, which stands in the Laguna de Términos on the coast of the Gulf of Mexico. , Ciudad d ...
, Mexico at this intensity, becoming the first hurricane to strike the region on record. After moving inland, Brenda rapidly weakened to a depression by the morning of August 22 and dissipated later that day.


Impact and aftermath

The tropical wave that spawned Brenda produced significant amounts of rainfall in the
Cayman Islands The Cayman Islands () is a self-governing British Overseas Territories, British Overseas Territory, and the largest by population. The territory comprises the three islands of Grand Cayman, Cayman Brac and Little Cayman, which are located so ...
as it became better organized. Upwards of was recorded on
Grand Cayman Grand Cayman is the largest of the three Cayman Islands and the location of the territory's capital, George Town, Cayman Islands, George Town. In relation to the other two Cayman Islands, it is approximately 75 miles (121 km) southwest of L ...
on August 17. Following its first landfall in the northern Yucatan, Brenda produced heavy rainfall and high winds, gusting near . Along the coast, waves were recorded up to . Offshore, a freighter with 25 crewman became trapped in the storm after its engines failed. The
United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and Admiralty law, law enforcement military branch, service branch of the armed forces of the United States. It is one of the country's eight Uniformed services ...
responded to the distress call sent out by the ship once Brenda had moved into the Gulf of Mexico on August 21. Already suffering from severe flooding that killed at least 18 people and left 200,000 homeless, Hurricane Brenda worsened the situation with torrential rainfall and additional flooding. Following the damage wrought by Brenda, a large
earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...
struck the region, hampering relief efforts and collapsing numerous structures. Winds on land gusted up to , leading to severe wind damage. Brenda caused a total of 10 deaths. Two of the fatalities occurred in
Campeche Campeche, officially the Free and Sovereign State of Campeche, is one of the 31 states which, with Mexico City, make up the Administrative divisions of Mexico, 32 federal entities of Mexico. Located in southeast Mexico, it is bordered by the sta ...
after 80% of the city was flooded. Two more of these deaths occurred in the coastal city of
Veracruz Veracruz, formally Veracruz de Ignacio de la Llave, officially the Free and Sovereign State of Veracruz de Ignacio de la Llave, is one of the 31 states which, along with Mexico City, comprise the 32 Political divisions of Mexico, Federal Entit ...
. This was considered to be the worst flooding in the city in over 25 years. According to officials, 452 homes and the local docks were destroyed in the region. An estimated 2,000 people were left homeless as a direct result of Brenda throughout Mexico.


See also

*
1973 Atlantic hurricane season The 1973 Atlantic hurricane season was a below average tropical cyclone season overall. Of the 24 tropical or subtropical cyclones which developed, only 8 became named storms, and of those, only 4 became hurricanes, with 1 reaching major hurr ...
* Other storms of the same name


References


External links


Monthly Weather Review for 1973
{{Good article Brenda (1973)
Brenda Brenda is a feminine given name in the English language. Origin The overall accepted origin for the female name Brenda is the Old Nordic male name ''Brandr'' meaning both ''torch'' and ''sword'': evidently the male name Brandr took root in areas ...
Brenda (1973)