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词条 Tropical Storm Carlotta (2018)
释义

  1. Meteorological history

  2. Preparations and impact

  3. See also

  4. References

  5. External links

{{Infobox Hurricane
| Name=Tropical Storm Carlotta
| Basin=EPac
| Type=Tropical storm
| Image location=Carlotta 2018-06-16 2001Z.jpg
| Image name=Tropical Storm Carlotta on June 16
| Formed=June 14, 2018
| Dissipated=June 19, 2018
| 1-min winds=55
| Pressure=997
| Damages=Unknown
| Inflated=1
| Year=2018
| Fatalities=3 total
| Areas=Southwestern Mexico
| Hurricane season=2018 Pacific hurricane season
}}

Tropical Storm Carlotta was a tropical cyclone that caused flooding in southwestern Mexico. Carlotta formed as the result of a breakdown in the Intertropical Convergence Zone to the south of Mexico. On June 12, the National Hurricane Center (NHC) reported that a broad area of low pressure had formed several hundred miles south of southeastern Mexico. The NHC continued to track the disturbance over the next couple of days as it drifted northward. After having increased in organization, the system was designated as a tropical depression on June 14. Late on the next day, the system strengthened into a tropical storm, after which it was named Carlotta. On June 16, Carlotta slowed down and unexpectedly stalled within a favorable environment, which led to more intensification than originally anticipated. Early on June 17, Carlotta reached peak intensity with maximum sustained winds of 65 mph (100 km/h) and a minimum central pressure of 997 mbar (29.44 inHg). Soon after, Carlotta began to interact with land and experience wind shear, which resulted in the system weakening to tropical depression status later in the day. Carlotta weakened to a remnant low early on June 19 and dissipated several hours later.

Carlotta prompted the issuance of multiple watches and warnings for the southern coast of Mexico.

Meteorological history

{{storm path|Carlotta 2018 track.png}}

Tropical Storm Carlotta formed as the result of a breakdown in the Intertropical Convergence Zone to the south of Mexico, however, a tropical wave that crossed over Central America around June 11 may have contributed to Carlotta's formation as well.[1] On June 12, the National Hurricane Center (NHC) reported that a broad area of low pressure had formed several hundred miles south of southeastern Mexico.[2] The NHC continued to monitor the disturbance over the next couple days as it drifted northward.[3] Initially, strong upper-level winds prevented organization,[2] but by the next day, conditions had become marginally conducive.[4] The system thereafter increased in organization, resulting in the formation of a tropical depression by 18:00 UTC on June 14.[1] Around that time, the NHC forecasted that a mid-level ridge over Mexico would break down on the next day, leaving the depression in an area of light steering currents.[5] Despite being located in an environment with low-to-moderate wind shear and sea surface temperatures exceeding {{convert|30|C}},[6] the depression experienced minimal change in intensity over the next 18 hours. The NHC later reduced its intensity forecast as the system's center had reformed further north, decreasing the amount of time until landfall.[7] Around 18:00 UTC on June 15, the system strengthened into a tropical storm, after which it was assigned the name Carlotta.[1]

Early on June 16, Carlotta's forward motion began to fluctuate, changing from northeast to southeast in six hours.[8] Carlotta began to intensify at 06:00 UTC as it stalled off the coast of Mexico.[1][9] Twelve hours later, the cyclone began moving in a northerly direction.[10] At 00:00 UTC on June 17, Carlotta reached peak intensity with maximum sustained winds of 65 mph (100 km/h) and a minimum central pressure of 997 mbar (29.44 inHg).[1] Around that time, the NHC noted that the system's structure had improved significantly, with a contracting eye and more symmetric eyewall.[11] Soon after, Carlotta began to weaken due to increasing interactions with land and northerly wind shear. Meanwhile, the system had begun tracking towards the northwest.[12] Around 18:00 UTC, Carlotta weakened into a tropical depression after lacking organized deep convection for several hours.[1][13] Over the next day, Carlotta continued to weaken before degenerating into a remnant low on June 19 at 00:00 UTC.[1] In the NHC's last discussion on the Carlotta, it was noted that the system's upper-level circulation had decoupled entirely and was drifting towards the southwest.[14] Carlotta's remnants dissipated approximately six hours later.[1]

Preparations and impact

On June 14 at 21:00 UTC, a tropical storm watch was issued for Tecpan de Galeana to Punta Maldonado.[15] Six hours later, the watch was upgraded to a tropical storm warning.[16] On June 15 at 15:00 UTC, the tropical storm warning was extended to Lagunas de Chacahua.[17] Six hours later, the warning was discontinued for Tecpan de Galeana to west of Acapulco.[18] On June 17 at 03:00 UTC, the warning was extended westward from Acapulco to Tecpan De Galeana and cancelled to the east of Punta Maldonado.[19] At 09:00 UTC, the warning was discontinued east of Tepac de Galeana and extended westward to Lazaro Cardenas.[20] The tropical storm warning was cancelled at 18:00 UTC, after Carlotta weakened into a tropical depression.[21]

Tropical Storm Carlotta caused severe flooding in southern Mexico, with the states of Aguascalientes, Guerrero, Michoacán, and Oaxaca being affected. Additionally, Carlotta caused two deaths in Aguascalientes and one in Oaxaca.

In Aguascalientes, Carlotta caused infrastructural damages and two indirect deaths in Aguascalientes City. Rainfall from Carlotta flooded streets, sweeping away dozens of cars and prompting the rescue of several people. A 30-to-35-year-old woman and a 15-to-17-year-old girl became entrapped in their vehicle due to rising flood waters and died of carbon monoxide poisoning.[30][31] After 57 mm (2.24 in) of rain fell,[22] the city's drainage system collapsed.[23] It was reported that 12 trees fell and 12 houses were flooded.[24] Additionally, a water spout was reported as having touched down in the state. Mexican authorities alerted the public that the El Cedazo dam had the potential to overflow due to the heavy rainfall.[23][22]

In Michoacán, multiple cities along the coast experienced severe flooding. In Melchor Ocampo, a peak rainfall total of 285.0 mm (11.22 in) was reported. Approximately 210.6 mm (8.29 in) of rain fell in La Villita, while 194.9 mm (7.67 in) was recorded in Presa La Villita.[25] Rainfall caused the Acalpican River to overflow its banks.[38] In the Tiquicheo Municipality, it was reported that 10 houses flooded after a river near the city of Tiquicheo overflowed its banks.[26] Additionally, multiple homes were inundated in the Zamora Municipality. In Pátzcuaro, multiple landslides occurred, damaging roads in the region. In Nuevo Urecho, the overflow of the Los Hervores River damaged water pumps, resulting in a water shortage throughout the municipality.[27] Throughout the storm, 35 temporary shelters were in operation.[28][29]

In Oaxaca, severe flooding killed one individual. The body of a 29-year-old man was recovered about 10 mi (20 km) off the coast of Oaxaca after he was dragged away by flood waters and drowned.[30] The ports of Huatulco, Puerto Ángel and Puerto Escondido were closed and fishing operations were suspended due to the proximity of Carlotta.[31]

See also

{{portal|Tropical cyclones}}
  • Other storms of the same name
  • Tropical Storm Beatriz (1993)
  • Tropical Storm Cristina (1996)
  • Tropical Storm Boris (2014)
  • Hurricane Dolores (1974)

References

1. ^1 2 3 4 5 6 7 {{cite report |last1=Pasch |first1=Richard J. |title=Tropical Cyclone Report: Tropical Storm Carlotta (2018) |url=https://www.nhc.noaa.gov/data/tcr/EP042018_Carlotta.pdf |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=19 December 2018|accessdate=28 February 2019}}
2. ^1 {{cite web |last1=Blake |first1=Eric |title=Tropical Weather Outlook |url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201806122051&basin=epac&fdays=5 |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=12 June 2018|accessdate=10 March 2019}}
3. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Weather Outlook |url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201806141454&basin=epac&fdays=5 |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=14 June 2018|accessdate=10 March 2019}}
4. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Weather Outlook |url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=201806132034&basin=epac&fdays=5 |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=13 June 2018|accessdate=10 March 2019}}
5. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Depression Four-E Discussion Number 1 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.001.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=14 June 2018|accessdate=10 March 2019}}
6. ^{{cite report |last1=Zelinsky |first1=David |title=Tropical Depression Four-E Discussion Number 2 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.002.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=15 June 2018|accessdate=10 March 2019}}
7. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Depression Four-E Discussion Number 4 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.004.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=15 June 2018|accessdate=10 March 2019}}
8. ^{{cite report |last1=Cangialosi |first1=John |title=Tropical Storm Carlotta Discussion Number 6 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.006.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=16 June 2018|accessdate=11 March 2019}}
9. ^{{cite report |last1=Avila |first1=Lixion |title=Tropical Storm Carlotta Discussion Number 7 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.007.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=16 June 2018|accessdate=11 March 2019}}
10. ^{{cite report |last1=Pasch |first1=Richard |title=Tropical Storm Carlotta Advisory Number 9 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.009.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric |date=16 June 2018|accessdate=11 March 2019}}
11. ^{{cite report |last1=Cangialosi |first1=John |title=Tropical Storm Carlotta Discussion Number 10 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.010.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
12. ^{{cite report |last1=Avila |first1=Lixion |title=Tropical Storm Carlotta Discussion Number 11 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.011.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
13. ^{{cite report |last1=Pasch |first1=Richard |title=Tropical Depression Carlotta Discussion Number 13 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.013.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
14. ^{{cite report |last1=Stewart |first1=Stacy |title=Post-Tropical Cyclone Carlotta Discussion Number 18 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.discus.018.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=19 June 2018|accessdate=11 March 2019}}
15. ^{{cite web |last1=Blake |first1=Eric |title=Tropical Depression Four-E Advisory Number 1 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.001.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=14 June 2018|accessdate=10 March 2019}}
16. ^{{cite report |last1=Zelinsky |first1=David |title=Tropical Depression Four-E Advisory Number 2 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.002.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=15 June 2018|accessdate=10 March 2019}}
17. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Depression Four-E Advisory Number 4 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.004.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=15 June 2018|accessdate=11 March 2019}}
18. ^{{cite report |last1=Blake |first1=Eric |title=Tropical Storm Carlotta Advisory Number 5 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.005.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=15 June 2018|accessdate=11 March 2019}}
19. ^{{cite report |last1=Cangialosi |first1=John |title=Tropical Storm Carlotta Advisory Number 10 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.010.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
20. ^{{cite report |last1=Avila |first1=Lixion |title=Tropical Storm Carlotta Advisory Number 11 |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public.011.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
21. ^{{cite report |last1=Pasch |first1=Richard |title=Tropical Depression Carlotta Intermediate Advisory Number 12A |url=https://www.nhc.noaa.gov/archive/2018/ep04/ep042018.public_a.012.shtml? |website=National Hurricane Center |publisher=National Oceanic and Atmospheric Administration |date=17 June 2018|accessdate=11 March 2019}}
22. ^1 {{cite web |title=Dos mueren atrapados en sus autos tras inundaciones en Aguascalientes |url=https://psn.si/inundaciones-en-aguascalientes/2018/06/ |website=PSN en Linea |accessdate=31 March 2019 |language=es |date=20 June 2018}}
23. ^1 2 {{cite web |title=VIDEO: Tromba deja dos muertos y vehículos arrastrados en Aguascalientes |url=https://lasillarota.com/aguascalientes-tromba-arrasa-autos-lluvias-muertos/229751 |website=La Silla Rota |language=es|accessdate=31 March 2019 |date=20 June 2018}}
24. ^1 {{cite web |last1=Torres |first1=David Julián |title=[Videos] Cobra dos vidas y deja afectaciones, intensa lluvia en Aguascalientes |url=https://www.elsoldemexico.com.mx/republica/sociedad/videos-cobra-dos-vidas-y-deja-afectaciones-intensa-lluvia-en-aguascalientes-1776375.html |website=El Sol de México |accessdate=31 March 2019 |language=es |date=19 June 2018}}
25. ^{{cite report |title=Precipitación acumulada (mm) del 14 al 19 de junio de 2018 por la tormenta tropical Carlotta |url=https://smn.cna.gob.mx/tools/RESOURCES/com_mapas_lluvias/Carlota-2018.png |website=gob.mx |publisher=Conagua |language=es|accessdate=12 March 2019}}
26. ^{{cite web |last1=Fuentes |first1=Christian |title=El agua se mete a las casas en Tiquicheo; el alcalde, damnificado |url=http://www.lavozdemichoacan.com.mx/regional/el-agua-se-mete-a-las-casas-en-tiquicheo-el-alcalde-damnificado/ |website=La Voz de Michoacán |accessdate=7 April 2019 |language=es |date=19 June 2018}}
27. ^{{cite web |title=“Carlotta” deja su huella en Michoacán |url=http://www.lavozdemichoacan.com.mx/regional/atiende-pc-afectaciones-ocasionadas-por-carlotta/ |website=La Voz de Michoacán |accessdate=7 April 2019 |language=es |date=19 June 2018}}
28. ^{{cite web |last1=Jaramillo |first1=Tere |title=Tormenta tropical provocará lluvias en Michoacán |url=http://www.lavozdemichoacan.com.mx/morelia/tormenta-tropical-provocara-lluvias-en-michoacan/ |website=La Voz de Michoacán |accessdate=7 April 2019 |language=es |date=21 June 2018}}
29. ^1 {{cite web |title=Report flood rains in Michoacán by 'Carlotta' |url=https://noticieros.televisa.com/ultimas-noticias/reportan-lluvias-inundaciones-michoacan-carlotta/ |website=Televisa News |accessdate=7 April 2019 |language=es |date=18 June 2018}}
30. ^{{cite web |title=Recuperan cuerpo de joven que cayó a arroyo en Oaxaca |url=https://noticieros.televisa.com/ultimas-noticias/rescatan-cuerpo-joven-que-cayo-arroyo-oaxaca/ |website=Televisa News |accessdate=7 April 2019 |language=es |date=20 June 2018}}
31. ^{{cite web |title=Alerta en Oaxaca por cercanía de ‘Carlotta’; cierran puertos a la navegación |url=https://noticieros.televisa.com/ultimas-noticias/alerta-oaxaca-cercania-tormenta-tropical-carlotta/ |website=Televisa News |accessdate=7 April 2019 |language=es |date=15 June 2018}}

External links

{{commons category}}
  • The National Hurricane Center's [https://www.nhc.noaa.gov/archive/2018/CARLOTTA.shtml advisory archive on Tropical Storm Carlotta]
{{2018 Pacific hurricane season buttons}}{{DEFAULTSORT:Carlotta (2018)}}

3 : 2018 Pacific hurricane season|Pacific hurricanes in Mexico|Eastern Pacific tropical storms
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