Tropical Storm Ivo (2019)

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Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
Disc Plain black.svg Tropical cyclone
Solid black.svg Subtropical cyclone
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

A tropical wave exited the west coast of Africa on August 4, while a second wave reached the eastern tropical Atlantic Ocean a few days after. The waves tracked westward and entered the eastern Pacific Ocean, starting on August 14. [1] The National Hurricane Center first forecast on August 13 that a low-pressure area would form southeast of Mexico's southeastern coast later in that week. [3] A low-pressure area spawned south of Guatemala early on August 16 from the first wave. This wave proceeded westward while the low-pressure area tracked towards the west-northwest. Thunderstorm activity associated with the latter system significantly increased during the next two days. By August 19, the system was located approximately 230 mi (370 km) south of Mexico's southeastern coast. The second tropical wave tracked through the region during this time, sparking a further increase in convective activity. [1] The low-pressure system became more organized on August 21, [4] with wind data from satellites showing an improved circulation. [1] A tropical depression developed 290 miles (465 km) south of Manzanillo, Mexico, at 06:00 UTC, and further strengthened into Tropical Storm Ivo six hours later. [1]

The nascent tropical storm was located in a favorable environment, with warm sea surface temperatures of 86 °F (30 °C), moist air, and moderate northeasterly vertical wind shear. At the time, Ivo possessed a curved rainband spiraling into its low-level center. Meanwhile, a mid-level ridge located to the north was causing the cyclone to track towards the west-northwest. [5] Ivo continued to strengthen over the next day, with the cyclone's cloud pattern improving and a mid-level, banded eye developing underneath its central dense overcast. [1] [6] [7] Ivo peaked at 12:00 UTC on August 22, with maximum sustained winds of 70 mph (120 km/h) and a minimum central pressure of 990 mbar (29.23 inHg). [1] Shortly after peaking, Ivo's forward crawl slowed down to 12 mph (19 km/h), [1] about half the speed it was travelling at one day prior, [8] as the western edge of the ridge weakened. The cyclone's intensification came to a halt as northeasterly wind shear increased. Convection was largely concentrated in the southern half of the storm, [1] and the low-level center was partially exposed along the northeastern edge of the cloud cover. [9] [10]

Ivo quickly turned towards the northwest and later the north-northwest early on August 23, as it rounded the western edge of the mid-level ridge. [1] [10] Wind shear continued to batter the cyclone, causing the latter's low-level center to separate from the central dense overcast. [11] Ivo passed just offshore Clarion Island around 12:00 UTC on August 23, [1] producing sustained winds of 60 mph (100 km/h) on the island. [12] Afterwards, Ivo's low-level center became separated from the convection as the cyclone decayed. [13] Continuous wind shear bombarded Ivo, causing the mid-level circulation to separate and leaving only a small area of convection near the center. [14] Cold 75 °F (24 °C) sea surface temperatures below and dry and stable air aloft caused all remaining convection to dissipate, with Ivo becoming a 35 mph (65 km/h) remnant low-pressure system around 06:00 UTC on August 25, located 445 mi (715 km) west of the southern tip of the Baja California peninsula. [1] [15] The low continued to track northwestward to north-northwestward while slowing down and weakening. The low became stationary on August 26 and turned towards the southeast, under the influence of a low-level steering flow, which was located west of the Baja California peninsula. The low opened up into a trough of low-pressure around 00:00 UTC on August 27. [1]

Preparations and impact

A blue alert, signifying minimal danger, was issued for the Sinaloan municipalities of Guaymas, Empalme, Cajeme, Navojoa, Huatabampo, Etchojóa, Álamos, Benito Juárez, San Ignacio Rio Muerto, Bácum, Quiriego, and Rosario. [16] A blue alert was also issued for the Sonoran municipalities of Guaymas, Empalme, Cajeme, Navojoa, Huatabampo, Etchojóa, Álamos, Benito Juárez, San Ignacio Rio Muerto, Bácum, Quiriego, and Rosario Tesopaco. [17] In Baja California Sur, 6 shelters were erected in Cabo San Lucas and another 6 in San José del Cabo. The Marine Plan was activated in the states of Baja California Sur, Sonora, Sinaloa, Nayarit, Jalisco, Colima, Michoacán, Guerrero, Oaxaca, and Chiapas. [16] Classes were canceled in 18 Sinaloan municipalities, [18] and the Autonomous University of Sinaloa was closed. [19] In El Carrizo, people living on a road parallelling the International Highway evacuated from their residences due to the threat of heavy rainfall and severe flooding, not wanting to experience a repeat of Tropical Depression Nineteen-E, which affected the region one year prior. [20]

Ivo caused severe flooding across multiple Mexican states, including Sinaloa, Baja California Sur, Nayarit, Zacatecas, and Mexico State. [21] [22] [23] Two emergency shelters were opened in Ciudad Insurgentes, Baja California Sur, during the storm as a result of flooding. Homes were flooded in Comondú, and people were rescued by boats. Minimal damage was inflicted to roadways in Los Cabos. Multiple landslides occurred around San José del Cabo and Cabo del Este. [24]

Torrential rainfall from Ivo caused flooding throughout Sinaloa; the municipalities of El Rosario, Mazatlán, Elota, Mocorito, and Guasave were the most severely affected, [25] with rainfall ranging from 70–244 mm (2.8–9.6 in) occurring there. [22] A sinkhole formed in a section of the Mazatlán-Culiacán highway in the Elota Municipality. [25] The hole was at least 6.1 m (20 ft) long and 0.61 m (2 ft). [26] Another section of the highway was flooded after a canal overflowed, forcing a partial closure of the road at that point. [27] At least 180 homes were flooded in El Rosario. [25] Four bridges collapsed in El Rosario municipality, isolating nine rural villages. [28] [29] Damage to the Monte Alto and La Batanga bridges was worsened as a result of heavy rainfall during Ivo, isolating communities along one bank of the Baluarte River. [30] Ivo worsened the damage to many roads, bridges, and other infrastructure that had previously been damaged by Hurricane Willa in 2018. [31] One temporary shelter was established, and the state government set up health and cleaning service groups during the storm. [28] Around 200 homes were inundated with 1 m (3.3 ft) of water in Mazatlán. [25] [19]

The Jabalines river spilled its banks near the edge of Mazatlán. Floodwaters and mud inundated homes in the Jacarandas and Lico Velarde neighborhoods. [29] At least 50 people were evacuated in the El Rosario, Indeco, Jacarandas, and Villa Jaraco neighborhoods and taken to shelters. [32] [27] A canal overflowed in the Jacarandas neighborhood, inundating a school with 1 metre (3.3 ft) of water and mud. Furniture, technology, and records within the building were almost completely ruined. [33] One family in the neighborhood lost everything after floodwaters and mud inundated their house. [34] In the Lico Velarde neighborhood, heavy rainfall from Ivo worsened existing sewage problems. [35] The Guadalupe drain overflowed in Guasave, flooding dozens of homes. [29] Floodwaters damaged at least 200 homes in Guasave and 46 in Ahome. [36] [37] In Los Mochis and Ahome, sewage systems collapsed. [28] At least fifteen neighborhoods were flooded throughout Los Mochis. [38] The storm caused flooding up to 12.5 mm (0.49 in) deep in the city, most severe in the Las Mañanitas neighborhood. Three pumps were working to remove water from that neighborhood. [39] Several streets and the main access road to the neighborhood were flooded. [40] Streets were closed to traffic in the city to prevent waves, and 108 shelters were established for victims of the storm. [39] The Juárez drain overflowed near Los Mochis after Ivo clogged its sea outlet, flooding streets and fields, the latter of which damaged 800–1,000 hectares (2,000–2,500 acres) of crops. [41] At least five ejidos were inundated in Guasave. [28]

The Culiacán Water Park was entirely flooded as a result of heavy rainfall during Ivo, resulting in its closure. The nearby Black Bridge was closed by authorities, and a road in the Derivadora Dam was closed before the Culiacán river overflowed. [42] In the Hacienda Alameda subdivision, Culiacán, Ivo caused water pipes to rupture and washed away rubble from houses. [43] At least 180 homes were inundated by floodwaters in the town of Las Brisas. [44] In the Angostura Municipality, the towns of Chinitos and Melchor Ocampo were left isolated, after water from an irrigation channel significantly damaged the Ford bridge. A shelter was established for people who lived on the banks of the channel. [45]

In Acaponeta, Nayarit, five people were swept away by the overflowing El Cangrejo river. [28] The storm caused flooding and hail and in the state of Zacatecas. [22] [23] Floodwaters up to 1 m (3.3 ft) were reported in the downtown region of Fresnillo. Six businesses and 25 homes were inundated, and 11 cars were stranded. [46] [23] Torrential rainfall affected Naucalpan Municipality, Mexico State, flooding 16 homes and vehicles and streets. A landslide occurred in the San Lorenzo Totolinga neighborhood, near the Totolinga river, damaging a house and requiring the rescue of two children. At least 30 residences were flooded in Toluca. [47] The Hondo, Chico de Los Remedios, and Los Cuartos rivers spilled their banks, causing damage in several neighborhoods. Floodwaters damaged Calle 4 in San Rafael Chamapa. The Chico de Los Remedios river spilled its banks in Ribera de Echegaray, causing floodwaters and garbage to collide with a bridge on San Agustín avenue. This in turn caused additional flooding. The September 16 ravine also overflowed in Ribera de Echegaray. [48] [49] The overflowing Chico de Los Remedios river inundated 12 houses in the Colon neighborhood, 10 in the Pastores neighborhood, and 8 in the El Conde neighborhood with water and mud. A landslide occurred in the Valle Dorado neighborhood, and another occurred on Rivera Street. [49] Heavy rainfall occurred in Iztapalapa, flooding streets in the neighborhoods of Lomas de Zaragoza, Santa Martha Acatitla, Chilpancingo Sur, and Niño Artillero Popular Ermita Zaragoza. The Water System of Mexico City requested that motorists avoid the eastern side of the city due to flooding. [50]

Aftermath

As a result of flooding from heavy rainfall, emergency declarations were issued for the Sinaloan municipalities of Rosario, Mazatlán, Elota, Mocorito, and Guasave to provide access to funds for food, shelter, and medical supplies. [22] In Guasave, pantries were erected and medical teams were dispatched to aid victims of the storm. [36] Plan DN-III-E, a disaster relief and rescue plan, was activated for Sinaloa and Baja California, with 400 soldiers being deployed to those states, collectively. [28] The plan was later extended to include Nayarit, Mexico State, and Mexico City. [21] In Baja California Sur, military troops were helping to remove debris, unclog drains, direct traffic, remove mud and floodwaters from homes in Comundú, and aid trapped cars. Military vehicles helped to evacuate citizens to shelters. [51] Two shelters were set up at schools in Comondú. [52] At least 230 people were evacuated from their homes and taken to shelters. [53] Emergencies were declared for the cities of Los Cabos and Comondú in Baja California Sur. [28] Food was distributed to victims of the storm at a temporary shelter located at a school in Comondú. [54] The Baja California Sur state government requested funds from FONDEN, a natural disaster relief fund, to help with cleanup and repair efforts in Ciudad Insurgentes. [53]

The commencement of school for 2019 in Ciudad Insurgentes was delayed for one day, as a result of heavy rainfall. [55] Municipal officials in Loreto, Baja California Sur, set up a collection site which stockpiled donations of medicine, blankets, clothes, diapers, canned food, powdered milk, and bottled water. [56] At least 56 families had to leave their homes in Mazatlán as a result of torrential rainfall. Relief programs were established to support these families and small businesses that were impacted by the storm. [31] The Ministry of Environment and Natural Resources prevented the usage of backhoes to clear off beaches in Mazatlán after strong waves from Ivo deposited algae there. [57] The governor of Sinaloa and the mayor of Los Mochis provided MX$80 million (US$4 million) in funds for 26 separate projects in order to fix drainage problems caused by Ivo throughout Ahome municipality. [58] [59] Farmers in Los Mochis, Topolobampo, and Villa de Ahome worked to drain their fields to prepare for the next agricultural season, after the storm inundated the fields with up to 170 mm (6.7 in) of water. [60]

Officials warned residents in Los Mochis not to drink tap water after Ivo damaged chlorine injectors, lowering the chlorination of the water. [61] The Autonomous University of Baja California Sur hosted a collection site for the victims of the storm, collecting food such as canned goods, water, pasta, and beans and items such as pallas, brooms, rakes, machetes, pickers, mops, hygiene products, cleaning products, medicine, and clothing. Collection sites were also established in Ciudad Constitución and Los Cabos municipality. [62] The Mazatlán municipal government provided citizens affected by the storm in the November 20 neighborhood with over 200 household appliances and furniture items, including mattresses and bed bases, washing machines, stoves, and refrigerators. [63] In Choix, Sinaloa, the mayor provided 12 schools with a collective total of 84 student desks, 230 chairs, 165 armchairs, 26 teacher chairs, and 30 teacher desks. [64]

The Water Commission of the State of Mexico sent six suction-pressure trucks, two squadrons, and six bilge pumps to clear floodwaters from homes and streets in Naucalpan. [47] In Mexico City and Mexico State, military personnel assisted with draining water, cleaning residences, clearing debris, and assisting stranded motorists. [48] [49] At least 250 people and 50 vehicles worked to remove mud and garbage from roads, houses, and the San Agustín bridge in Ribera de Echegaray. [49]

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Hurricane Pamela was a Category 1 Pacific hurricane that caused seven deaths and US$10 million in damage across the northwestern and western states of Mexico in October 2021. The sixteenth named storm and seventh hurricane of the 2021 Pacific hurricane season, the storm originated from a tropical wave over the Atlantic basin, over the Caribbean Sea. It then quickly crossed into the Pacific Ocean, where it slowly consolidated, with a low-pressure area forming from the wave on October 9. Environmental conditions in the area were proved favorable for tropical cyclogenesis and developed into Tropical Depression Sixteen-E on the next day. It then organized further into Tropical Storm Pamela on that night. Despite wind shear and dry air affecting the cyclone, Pamela continued to strengthen and became a hurricane on October 12 before weakening back to a tropical storm as it continued to succumb onto these factors. However, as the system turned towards the coast of Mexico, Pamela restrengthened to a low-end hurricane before making landfall over Estacion Dimas, Sinaloa on 15:00 UTC on October 13 before rapidly weakening inland. It then dissipated over Coahuila on the early hours on the next day.

<span class="mw-page-title-main">Tropical Storm Mindy</span> Atlantic tropical storm in 2021

Tropical Storm Mindy was a short-lived tropical storm which affected much of Mexico and the Southeastern United States in September 2021. The thirteenth tropical storm of the 2021 Atlantic hurricane season, Mindy originated from a tropical wave which entered the Atlantic Ocean from the west coast of Africa on August 22. The wave traveled westward across the Atlantic, breaking apart for the first time on August 27. After moving through Central America breaking apart once more on September 2. The northern part of the wave moved into the Gulf of Mexico on September 5, moving gradually northward between two mid-level ridges. On September 8, the wave began showing signs of organization and gale-force winds, becoming Tropical Storm Mindy southwest of Apalachicola, Florida. Mindy intensified before landfall, attaining a peak intensity with maximum sustained winds of 60 mph (97 km/h) and a minimum barometric pressure of 1,000 mbar (30 inHg) at 01:15 UTC on September 9; as the cyclone made landfall on St. Vincent Island, Florida. The storm rapidly weakened inland before entering the Atlantic and being absorbed by a baroclinic system on September 11.

References

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Tropical Storm Ivo
Ivo 2019-08-22 2120Z.jpg
Tropical Storm Ivo at peak intensity near Clarión Island on August 22, 2019
Tropical cyclones of the 2019 Pacific hurricane season
2019 Pacific hurricane season summary map.png
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