Tropical low pressure area Elf-E (2010)

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Tropical low pressure area Elf-E
Tropical Depression ( SSHWS )
Tropical depression Elf-E on September 3rd off the coast of Mexico
Tropical depression Elf-E on September 3rd off the coast of Mexico
Emergence September 3, 2010
resolution September 4, 2010
Peak wind
speed
35  mph (55  km / h ) (sustained for 1 minute)
45  mph (75  km / h ) (gusts)
Lowest air pressure 1004  mbar ( hPa ; 29.7  inHg )
dead 54 confirmed, 100+ missing
Property damage Unknown
Affected
areas 		Central America ; especially Guatemala
Season overview:
2010 Pacific hurricane season

The Tropical Depression Eleven-E was a short-lived but devastating tropical cyclone that in Guatemala killed at least 54 people. The low pressure area developed rapidly on September 3rd from a low pressure area embedded in a trough . It quickly intensified as it approached the southeastern coastline of Mexico. The system almost reaches tropical storm status, but then moved overland at Salina Cruz . Overland, the low pressure area weakened to a residual low within a few hours on September 4; this residual low probably later played a role in the development of the tropical storm Hermione in the Gulf of Mexico .

In Guatemala, the low pressure area resulted in torrential rain , which triggered a series of deadly landslides on the Inter-American Highway . At least 50 people were killed in these landslides, and four more died in a separate incident in Quetzaltenango . Severe floods were reported from Mexico, but no deaths.

Storm course

Railway from Elf-E

The Elf-E Tropical Depression was first identified by the National Hurricane Center (NHC) on September 2, 2010 as a depression over the Gulf of Tehuantepec . Since it was embedded in a monsoon current, the formation of a tropical cyclone was not initially assumed , but an outbreak of atmospheric convection over the low-pressure area gave cause for observation. Very favorable environmental conditions such as low wind shear and a warm water surface meant that the system was able to maintain a small area with showers and thunderstorms that extended up to 110 km from its center. Despite these conditions, the NHC initially stopped observing the system in the early hours of September 3; however, the system organized itself better and the chance that it could develop into a tropical depression within 48 hours was raised to "medium" a few hours later. Within a few hours, the system intensified to the eleventh tropical low pressure area of ​​the 2010 Pacific hurricane season . At that time, its center was around 155 km southeast of Salina Cruz, Mexico. Still embedded in the monsoon trough, the system slowly moved to the northwest. Because the system was small, the depression formed a well-defined center around which convective rain bands circulated, suggesting further intensification before reaching the coast.

In the morning hours of September 4th the system continued to develop. Before it hit the coast, weather radar images from Mexico showed a well-defined center with one eye , suggesting that the low pressure area may have intensified into a tropical storm. Between 6:00 and 7:00 UTC , the center of the Tropical Depression Elf-E crossed the Mexican coast near Salina Cruz with continuous one-minute winds of 55 km / h. At this point the low pressure area reached a minimum central air pressure of 1005  hPa . Within a few hours of landfall, the system degenerated to a residual low that has lost most of its convection. However, the predictive models of tropical activity suggested the possibility that a new tropical cyclone could form in the southwestern Gulf of Mexico. This prognosis was later fulfilled with the formation of Tropical Storm Hermione on September 6th in southwest Campechebai . However, there is uncertainty to what extent Tropical Depression Elf-E actually played a role in the formation of Hermione.

Preparations, Effects and Consequences

In classifying the system as a tropical depression, the Mexican government issued storm warnings for the coast from Boca De Pijijiapan west to Puerto Ángel . These warnings were discontinued after the depression hit land. Severe rainfalls were reported from southeastern Mexico and several rivers in Oaxaca - including Río Ostuta and Río Tehuantepec - overflowed, triggering a red (high) flood alarm. Thousands were affected by the effects of the storm and the floods. In total, around 50,000 people were affected by the effects of the low pressure area in Mexico.

Guatemala was not directly on the track of the tropical depression, but the effects were felt most strongly. Several days of heavy rain that led depression with them, produced in the country several landslides and prompted President Alvaro Colom the emergency call out. Twelve people were killed in a bus along the Inter-American Highway that was spilled in a landslide. Hundreds of rescue workers came to the scene of the accident to save as many people as possible, but a second landslide happened in the same area and buried many of the helpers. According to press reports, 50 people died here and more than 100 others are believed to be dead too. According to the authorities, more than 30 landslides occurred in Guatemala. One of them destroyed a house in Quetzaltenango, killing the four residents. President Colom has ordered national mourning for September 6th in memory of the victims.

See also

supporting documents

  1. ^ Wally Barnes: Tropical Weather Discussion for the Eastern Pacific Ocean ( English ) National Hurricane Center. September 2, 2010. Accessed on September 7, 2010.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.nhc.noaa.gov  
  2. ^ Wally Barnes: Tropical Weather Discussion for the Eastern Pacific Ocean ( English ) National Hurricane Center. September 2, 2010. Accessed on September 7, 2010.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.nhc.noaa.gov  
  3. ^ Dan Mundell: Tropical Weather Discussion for the Eastern Pacific Ocean ( English ) National Hurricane Center. September 3, 2010. Accessed on September 6, 2010.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.nhc.noaa.gov  
  4. ^ Michael Formosa: Tropical Weather Discussion for the Eastern Pacific Ocean ( English ) National Hurricane Center. September 3, 2010. Accessed on September 7, 2010.  ( Page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.nhc.noaa.gov  
  5. ^ A b Robbie Berg and Michael Brennan: Tropical Depression Eleven-E Public Advisory One ( English ) National Hurricane Center. September 3, 2010. Retrieved September 7, 2010.
  6. ^ Robbie Berg and Michael Brennan: Tropical Depression Eleven-E Discussion One ( English ) National Hurricane Center. September 3, 2010. Retrieved September 7, 2010.
  7. ^ Todd L. Kimberlain: Tropical Depression Eleven-E Discussion Three ( English ) National Hurricane Center. September 4, 2010. Retrieved September 7, 2010.
  8. ^ Todd L. Kimberlain: Tropical Depression Eleven-E Public Advisory Three ( English ) National Hurricane Center. September 4, 2010. Retrieved September 6, 2010.
  9. ↑ a b Jack L. Beven: Tropical Depression Eleven-E Discussion Four (Final) ( English ) National Hurricane Center. September 4, 2010. Retrieved September 7, 2010.
  10. ^ Daniel Brown and Robbie Berg: Tropical Storm Hermine Public Advisory Two ( English ) National Hurricane Center. September 6, 2010. Retrieved September 6, 2010.
  11. ↑ Tropical Depression Eleven-E forms southeast of Salina Cruz, Mexico ( English ) Channel 6. September 4, 2010. Archived from the original on July 23, 2011. Information: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 7, 2010. @1@ 2Template: Webachiv / IABot / channel6newsonline.com
  12. ^ Todd L. Kimberlain: Tropical Depression Eleven-E Public Advisory Three-A ( English ) National Hurricane Center. September 4, 2010. Retrieved September 7, 2010.
  13. ↑ Depresión tropical 11-E provoca desborde de ríos en Oaxaca (Spanish) . September 3, 2010. Archived from the original on September 7, 2010 Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . Retrieved September 7, 2010. @1@ 2Template: Webachiv / IABot / www.jornada.unam.mx 
  14. ^ Tropical Depression 11-E makes landfall in southern Mexico ( English ) newKerala.com. Retrieved September 7, 2010.
  15. ^ Depression killed 38 ( English ) September 4, 2010. Retrieved September 7, 2010.
  16. ↑ Luis Ángel Sas: Death toll rises to 45 in Guatemala mudslides , Associated Press . September 6, 2010. Archived from the original on September 7, 2010. Retrieved on September 7, 2010. 
  17. ↑ Al menos 54 muertos tras deslizamientos de tierra en Guatemala (Spanish) , CNTN. September 6, 2010. Retrieved September 7, 2010. 
  18. ↑ a b Guatemala declares day of mourning ( English ) Al Jazeera. September 6, 2010. Retrieved September 7, 2010.

Web links