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词条 Hurricane Nate (2011)
释义

  1. Meteorological history

  2. Preparations and impact

  3. See also

  4. References

{{good article}}{{Infobox Hurricane
| Name=Hurricane Nate
| Type=hurricane
| Year=2011
| Basin=Atl
| Image location=Nate Sept 8 2011 1905Z.jpg
| Image name=Hurricane Nate at peak intensity to the west of the Yucatán Peninsula on September 8
| Formed=September 7, 2011
| Dissipated=September 12, 2011
| Remnant low=September 11
| 1-min winds=65
| Pressure=994
| Damages=Minimal
| Fatalities=4 direct, 1 indirect
| Areas=Mexico
| Hurricane season=2011 Atlantic hurricane season
}}

Hurricane Nate caused minor damage in southeastern Mexico in mid-September 2011. The sixteenth named storm and fourth hurricane of the 2011 Atlantic hurricane season, Nate originated from a frontal trough in the Bay of Campeche on September 7. Within a weak steering environment, the storm meandered southwestward while gradually gaining strength. Though classified as a tropical storm operationally, data during a post-season review indicated that Nate briefly attained Category 1 hurricane status on the Saffir–Simpson hurricane wind scale on September 8. As a result of its slow motion, the storm caused significant upwelling, leading to a marked decrease in convection, and weakening accordingly. On September 11, Nate moved ashore Mexico as a tropical storm, producing several inches of rainfall and damaging several hundred structures. Ten oil rig workers went missing; seven were rescued, but one died of an unknown cause, and three other bodies were later recovered. In Veracruz, a boy was killed after being struck by lightning.{{Verify source|date=October 2017}}

Meteorological history

{{storm path|Nate 2011 track.png}}

On September 5, a frontal trough, the same responsible for the extratropical transition of Tropical Storm Lee, passed through the western Gulf of Mexico before stalling in the central Gulf of Mexico and Bay of Campeche.[1] At the tail-end of the trough, increased shower and thunderstorm activity associated with a developing low-pressure area prompted the National Hurricane Center (NHC) to begin monitoring the disturbance for tropical cyclone formation the next day.[2] The low separated from the front early on September 7, but convection was too disorganized for classification at the time. By 1800 UTC, however, a curved band developed in the western semicircle of the circulation.[1] In accordance with satellite imagery, surface observations from land and oil rigs, and data from a reconnaissance aircraft,[3] the disturbance was upgraded to Tropical Storm Nate, positioned roughly 160 mi (260 km) north of Villahermosa, Mexico.[1]

Within a weak steering environment between a mid-level ridge over northern Mexico and a mid-level ridge over the northern Caribbean Sea, Nate drifted slowly southwestward initially. Though an abundance of dry air was expected to limit a rapid rate of intensification, warm sea surface temperatures and light to moderate wind shear allowed for gradual strengthening.[4] Operationally, the system attained its peak intensity with maximum sustained winds of 70 mph (110 km/h) and a minimum barometric pressure of 994 mb (29.35 inHg) on September 8. However, as part of its post-season routine, the NHC received data from an offshore oil rig in the southeastern quadrant of the system that yielded maximum sustained surface winds of {{convert|77|mph|km/h|abbr=on}}; as a result, Nate was re-designated as a Category 1 hurricane on the Saffir–Simpson hurricane wind scale while centered approximately 80 mi (130 km) north-northwest of Ciudad del Carmen, Mexico. Following peak intensity, the storm's broad wind field and slow forward motion led to significant ocean upwelling. With cooler sea surface temperatures and low ocean heat content, the coverage of deep convection decreased and Nate weakened to a tropical storm at 0600 UTC on September 9.[1]

While accelerating west-northwest and eventually westward in response to an eastward shift in the ridge over Mexico, Nate moved away from cooler ocean temperatures, briefly allowing it to gain strength on September 10. By the next day, however, increasingly dry, low- to mid-level air wrapped into the circulation, causing associated convection to collapse. At 1600 UTC on September 11, the system made landfall near Barra de Tecolutla, Mexico, with winds of 45 mph (75 km/h). The rugged terrain of Mexico caused Nate to rapidly weaken once inland, and the cyclone degenerated into a remnant low by 0000 UTC on September 12, about 20 mi (30 km) west of Poza Rica, Mexico. The circulation dissipated six hours later, at 1200 UTC on September 12.[1]

Preparations and impact

Following Nate's declaration as a tropical cyclone, the Government of Mexico issued a tropical storm warning stretching from Chilitepec to Celestún, noting that tropical storm conditions were likely within 12 hours. Early on September 8, a tropical storm watch was issued from Celestún to Progreso. A day later, a tropical storm watches were issued from La Cruz to Tampico and Veracruz to Punta El Lagarto. A hurricane watch was issued from Tampico to Veracruz, and three hours later, all tropical storm warnings were discontinued. On September 10, the tropical storm watch stretching from Veracruz to Punta El Lagarto was discontinued, and a tropical storm warning was issued from Tampico to Punta El Lagarto. By 1500 UTC, all tropical storm watches were discontinued, and at 2100 UTC, the tropical storm warning area was modified to Tampico to Tuxpan. At this time, the hurricane watch area was modified to Tampico to Tuxpan, and a hurricane warning was issued from Tampico to Veracruz. The following day, this hurricane warning was changed to a tropical storm warning following Nate's weakening trend. All hurricane watches were discontinued, and during the afternoon hours, all tropical storm warnings were discontinued.[1]

On September 7, the Dos Bocas and Cayo Arcas ports, Mexico's two main crude oil export ports, closed in preparation for the storm.[5] Ten contractors for Geokinetics were forced to abandon their lifeboat after evacuating the Trinity II rig. Seven of the ten men were rescued; however, one later died, and the bodies of the three other men were recovered.[6] The body of the tenth man, who had remained listed as "missing" for several days, was recovered by the Mexican Navy on September 14.[7] Throughout Veracruz, 839 homes were damaged by the storm. In the southern sections of the state, Nate produced several inches of rainfall.[8] A child was killed in Pánuco when a lightning-struck tree fell on his home.[9]

See also

{{Commons category}}{{portal|Tropical cyclones}}
  • Other tropical cyclones named Nate
  • Hurricane Lorenzo (2007)

References

1. ^{{cite report|author=Todd B. Kimberlain|title=Tropical Cyclone Report: Hurricane Nate|url={{NHC TCR url|id=AL152011_Nate}}|publisher=National Oceanic and Atmospheric Administration|work=National Hurricane Center|date=November 18, 2011|accessdate=February 26, 2014|format=PDF|location=Miami, Florida}}
2. ^{{cite report|author=Lixion A. Avila|title=Tropical Weather Outlook|url=http://www.nhc.noaa.gov/archive/text/TWOAT/2011/TWOAT.201109061131.txt|publisher=National Oceanic and Atmospheric Administration|work=National Hurricane Center|date=September 6, 2011|accessdate=February 26, 2014|location=Miami, Florida}}
3. ^{{cite report|author=Eric S. Blake|author2=David Zelinsky|title=Tropical Storm Nate Discussion Number 1|url=http://www.nhc.noaa.gov/archive/2011/al15/al152011.discus.001.shtml|publisher=National Oceanic and Atmospheric Administration|work=National Hurricane Center|date=September 7, 2011|accessdate=February 26, 2014|location=Miami, Florida}}
4. ^{{cite report|author=Todd B. Kimberlain|author2=Richard J. Pasch|title=Tropical Storm Nate Discussion Number 3|url=http://www.nhc.noaa.gov/archive/2011/al15/al152011.discus.003.shtml|publisher=National Oceanic and Atmospheric Administration|work=National Hurricane Center|date=September 8, 2011|accessdate=February 26, 2014|location=Miami, Florida}}
5. ^{{cite news|author=Brian Sullivan|author2=Lananh Nguyen|title=Tropical Storm Nate Likely To Become Hurricane|url=https://www.bloomberg.com/news/2011-09-09/tropical-storm-nate-to-become-hurricane-in-gulf-katia-and-maria-weaken.html|accessdate=March 2, 2014|newspaper=Bloomberg News|date=September 9, 2011}}
6. ^{{cite news|title=Three oil workers die after evacuating rig in storm|url=http://www.nbcnews.com/id/44475463/ns/weather/t/three-oil-workers-die-after-evacuating-rig-storm/#.Uw56AfldVAo|accessdate=February 26, 2014|work=The Associated Press|publisher=NBC News|date=September 12, 2011}}
7. ^{{cite web|title=Body of last oil worker found in Gulf of Mexico|url=http://www2.readingeagle.com/article.aspx?id=331831|accessdate=February 26, 2014|work=The Associated Press|publisher=Reading Eagle|date=September 15, 2011}}
8. ^{{cite web|title=Tropical Storm Nate makes landfall in Mexico's Veracruz state|url=http://news.xinhuanet.com/english2010/world/2011-09/12/c_131133112.htm|date=September 12, 2011|accessdate=February 26, 2014|publisher=Xinhua}}
9. ^{{cite web|publisher=Informador|work=Informador|date=September 12, 2011|accessdate=September 24, 2011|title="Nate" deja daños en 15 municipios de Veracruz|url=http://www.informador.com.mx/mexico/2011/321800/6/nate-deja-danos-en-15-municipios-de-veracruz.htm|language=es}}
{{2011 Atlantic hurricane season buttons}}{{DEFAULTSORT:Nate (2011)}}

2 : Category 1 Atlantic hurricanes|2011 Atlantic hurricane season

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