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définition - Hurricane_Joan-Miriam

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Wikipedia

Hurricane Joan–Miriam

                   
Hurricane Joan–Miriam
Category 4 hurricane (SSHS)
Hurricane Joan making landfall in Nicaragua.
Formed October 10, 1988
Dissipated November 2, 1988
Highest winds 1-minute sustained:
145 mph (230 km/h)
Lowest pressure 932 mbar (hPa); 27.52 inHg
Fatalities 216-334 total (all as Joan)
Damage $2 billion (1988 USD)
Areas affected Windward Islands, Aruba, Bonaire, Curaçao, Colombia, Venezuela, Costa Rica, Panama (as Joan), El Salvador, Guatemala, Mexico (as Miriam), Nicaragua (as both)
Part of the 1988 Atlantic hurricane season
1988 Pacific hurricane season

Hurricane Joan was a powerful hurricane that caused death and destruction in over a dozen countries in the Caribbean and Central America. Moving on a due west course for nearly two weeks in October 1988, Hurricane Joan caused widespread flooding and over 200 deaths after moving into Central America. Widespread suffering and economic crises were exacerbated by Joan, primarily across Nicaragua, as heavy rains and high winds impacted those near the hurricane's path.

After crossing Central America into the Pacific, the cyclone was renamed Tropical Storm Miriam, with the system's dissipation occurring southwest of Mexico. Joan-Miriam was the final hurricane of the 1988 Atlantic hurricane season and the final named storm of the Pacific hurricane season.[1][2][3]

Contents

  Meteorological history

  Storm path

One of the latest Cape Verde-type hurricanes to form in any season,[4] Joan formed from an area of convection in the intertropical convergence zone that moved off the coast of Africa early in October. It developed banding and was upgraded to Tropical Depression Seventeen on October 10 and later designated as Tropical Storm Joan while located at low latitude in the central Atlantic Ocean.[5]

  Hurricane Joan on October 19

Joan gradually strengthened as it passed over the southern Windward Islands on October 15. It continued heading west in response to a strong Ridge, and passed over the Guajira Peninsula on October 17.[5] After entering the extreme southwestern Caribbean Sea, Joan strengthened into a hurricane. It then slowly executed a small counterclockwise loop, possibly in response to the nearby Tropical Depression Eighteen.[2] Upwelling caused by the quasi-stationary hurricane weakened the system. As the nearby depression dissipated, Joan resumed its westward track. A strong anticyclone over the southwestern Caribbean Sea created an extremely favorable environment, and Joan underwent rapid deepening at a rate of 38 millibars in the space of a day.[4] With a minimum pressure of 932 millibars, Joan was one of the strongest October hurricanes since 1961.[4] At the time, it was located at 12°N, the southernmost Category 4 hurricane ever recorded at the time.[5] That record has since been broken by Hurricane Ivan.[2][6][7]

Joan made landfall just south of Bluefields on October 22.[7] It passed over the northern portion of Lake Nicaragua, passed over Managua, and entered the Pacific Ocean near Leon on October 23.[2] Joan remained a hurricane or tropical storm during its entire passage over Central America, and was a minimal tropical storm when it reached the Pacific.[2] As per the policy at the time, Joan was renamed Miriam.[2]

  Tropical Storm Miriam on October 23

Tropical Storm Miriam hugged the coast of Central America and reached its peak of 986 millibars on October 24.[8] Ordinarily, a pressure this low would indicate a Category 1 hurricane, but due to its disorganized convection, Miriam was not upgraded to a hurricane.[8] Land interaction and wind shear weakened Miriam to a tropical depression on October 26. Low-level winds carried the system out to sea, and its convection dissipated on October 28.[8]

Miriam's remnants continued out to sea, and they regenerated on October 30. The tropical depression hung on for the next few days, until its second, and final, dissipation on November 2.[9]

  Unusual path

Hurricane Joan's path through the southern Caribbean in late October was highly unusual. Most October storms in the Atlantic gravitate towards the northern portion of the Caribbean, and often recurve quickly.[10] Joan took the southernmost path of a tropical cyclone since a June system in 1933, although Hurricane Irene in 1971 took a path that was just north of Joan's.[5] Joan-Miriam was also unusual in that it survived passage from the Atlantic to Pacific Ocean or vice-versa. Only seven other storms have been known to survive the passage between the Atlantic and Pacific Oceans.[11]

  Preparations

Tropical Storm watches and later warnings were issued for the Windward Islands as far north as Martinique on October 13. They were dropped over the subsequent two days as Joan passed through. Along the coast of South America, additional warnings were raised and later dropped as Joan paralleled the coast.[12]

The first hurricane watches were issued for parts of Panama, and Providencia starting on October 18. The watch area was expanded to include Costa Rica and Nicaragua on October 19 as the watches were upgraded to warnings. These warnings provided several hours' worth of lead time, allowing evacuations and preparations to be made.[13] In addition, flash flood and mudslide warnings were issued for western Panama, Costa Rica, Honduras, and Nicaragua starting on October 21.

In response to Miriam, the flood and mudslide warnings issued because of Joan were not lifted until October 23 and 25. Tropical Storm warnings were issued for the Pacific coast of Nicaragua, El Salvador, and the Gulf of Fonseca on October 24. They were dropped the next day. Guatemala was placed under a warning on October 24. In addition, new flash flood and mudslide warnings were raised for Guatemala and the Mexican state of Chiapas on October 24 and 25, respectively. All warnings and watches were discontinued later on October 25 as Miriam turned away from the coast.[14]

Despite the dangers from the intense hurricane, evacuations in Bluefields were met with resistance and disbelief from residents.[3] In Managua, 70,000 people were evacuated to safe areas.[2] In the remaining areas of Nicaragua, 300,000 people were evacuated.[15] In Costa Rica, a total of 55,000 people were evacuated.[3]

  Impact

Impact by Country
Country Deaths Damage
Nicaragua 148-248 $751.1 million
Costa Rica 28-46 $60 million
Colombia 25 $1 billion
Venezuela 11 Unknown
Panama 7 $60 million
Total 219-337 $1.85 billion

Hurricane Joan killed at least 216 people, with 118 unaccounted for. The total cost of damage was around 2 billion USD (1988 dollars).[1] All of the deaths and most of the damage were due to the Joan portion of Hurricane Joan–Miriam.[9]

  Lesser Antilles

No casualties were reported in the Windward Islands, including Grenada, where, on October 15, Joan made landfall. There were also no casualties in any of Aruba, Bonaire, or Curaçao. It is not known if there was any damage in the Lesser Antilles.[3] In Trinidad and Tobago, Joan was described as a "minor inconvenience".[16] Sustained winds up to 51 mph (82 km/h) with gusts up to 64 mph (103 km/h) were recorded on Grenada. Heavy rains amounted to 6 in (152.4 mm) in St. George's. Significant flooding was reported throughout the island, resulting in hundreds of thousands of dollars in damage.[17] A rare invasion of African desert locusts in the Windward Islands were blamed on the storm.[18]

  South America

In Venezuela, 11 people were killed due to flash-flooding caused by heavy rains. Landslides and flooding killed 25 people in Colombia. The rains and flooding left 27,000 people homeless.[3] Throughout Colombia, damages amounted to $1 billion.[19]

  Nicaragua

Most of the destruction was in Nicaragua. Throughout the country, 148 people perished, 184 were badly hurt, and 100 were unaccounted for. Roughly 23,300 homes were destroyed, with 6,000 being damaged.[2] Many settlements on the Atlantic coast of the country were completely destroyed.[15] The national electric company had 620 miles (1,000 km) of downed power lines, at the cost of 2.5 million USD (1988 dollars).[20] A port being constructed with Bulgarian help at El Bluff was severely damaged. On a brighter note, public health measures managed to keep the death toll lower than it could have been.[15]

Bluefields was hit with extreme impact. Almost all of the 7,500 structures in the city were demolished[17] or had their roofs blown off. The majority of the main buildings in the city were destroyed.[2] The hurricane also wreaked havoc on agriculture in the country. Around 15,700 head of cattle, 20,000 pigs, and 456,000 chickens were killed.[2] The hurricane caused severe disruption in most of Nicaragua's remaining rain forests in the areas it hit, and also stripped trees of leaves.[21] In the southeast rain forests, Joan toppled or snapped 80 percent of the trees and completely destroyed 500,000 hectares (1,200,000 acres) of canopy.[22] Hurricane Joan caused transportation difficulties in the country. Floodwaters destroyed 30 bridges and seriously damaged 36 others. Roads totaling 404 miles (650 km) in length were washed away.[2]

In an unfortunate coincidence, Hurricane Joan hit shortly after an armed conflict in the region had started to cool off. The hurricane destroyed much of the infrastructure in Nicaragua, contributing to a recession that was already underway. The losses to cash crops severely reduced exports to under 200 million dollars (1988 USD).[20] These factors combined to aggravate a recession and deepen the economic crisis. Government spending to rebuild infrastructure negated recently-introduced anti-inflation measures. Hurricane Joan was a partial cause of Nicaraguans being, on average, worse-off than they were in the 1970s.[23] In all, the storm left at least 250,000 people homeless.[24] Total damages in the country amounted to $751.1 million.[19] Joan was the first major hurricane to strike Nicaragua since 1911.[25]

  Joan-Miriam's Rainfall in Mexico

  Rest of Central America

In Costa Rica, 28 people were killed, 75 were injured, and 18 were missing. Rainfall caused 20 rivers to burst their banks, flooding 75 settlements, including the city of Quepos, Costa Rica on the Pacific coast. At Ciudad Neily, Costa Rica, the Rio Corredores broke through a dike. In total, 7,500 Costa Ricans were rendered homeless.[3] Damages in Costa Rica amounted to $65 million.[26]

In the remaining portions of Central America, heavy rainfall, locally exceeding 300 millimetres (12 in), was reported. These rains caused flooding and landslides, especially in mountainous regions.[2] Those heavy rains caused seven deaths in Panama and left $60 million in damages.[27]

  Mexico

In Mexico, heavy rainfall associated with Tropical Storm Miriam caused the cancellation of flights from the airport at Tuxtla Gutiérrez. The highest rainfall reported recorded was 10.37 inches (263 mm) at Lazaro Cardenas.[28] In small settlements, rivers were flooded and mudslides were reported. Casualties from the flooding are not known.[9]

  Aftermath

The response to requests for international aid was moderate. American church groups, Cuba, and Mexico collectively contributed around 2,500 tons of food and medicine. The Canadian, Swedish, West German, Spanish, and Dutch Governments contributed aid amounting to 2 million dollars (1988) each. No aid was sent by the United States government. The Soviet Union contributed an unknown sum.[20] The slow response to requests for aid was contributed to by the Sandinista Government's actions, which was viewed by a few anonymous diplomats from other countries who commented to the press, as undermining the peace process championed by Óscar Arias.[20] Those actions were the July 10 arrests of opposition activists and the closing down of independent radio stations.[20] In addition, the government also barred foreign humanitarian groups from receiving American aid, as well as turning back a relief shipment days before the storm.[20]

On October 28, 1988, the United Nations General Assembly passed without a vote Resolution 17 of its 43rd session in response to the disaster. The resolution called on countries to contribute to the relief effort.[29]

  Retirement

The name Joan was retired in 1989 and replaced by Joyce on the list for the 1994 season.[30] The name will never again be used for a North Atlantic hurricane. The name Joyce, however, was not used until 2000 due to an El Niño in 1994 nor during 2006 for that same reason. Because the impact of the Miriam portion of the tropical cyclone was minimal, the name Miriam was not retired in the Pacific and is still on the list of names for that basin,[31] slated to be used next in 2012.

  See also

  References

  1. ^ a b Miles B. Lawrence and James M. Gross. 1988 Monthly Weather Review accessed April 9, 2006
  2. ^ a b c d e f g h i j k l Dr. Harold P. Gerrish. NHC Joan report p. 2 accessed April 10, 2006
  3. ^ a b c d e f Dr. Harold P. Gerrish. NHC Joan report p. 3 accessed April 10, 2006
  4. ^ a b c Padgett, Gary Monthly Global Tropical Cyclone Summary for October 2003 Part 1 accessed April 10, 2006
  5. ^ a b c d Dr. Harold P. Gerrish. NHC Joan report p. 1 accessed April 10, 2006
  6. ^ Stacey R. Stewart. NHC Ivan Report accessed April 27, 2006
  7. ^ a b Dr. Harold P. Gerrish. NHC Joan report p. 7 accessed April 10, 2006
  8. ^ a b c Dr. Harold P. Gerrish. NHC Miriam report p. 1 accessed April 10, 2006
  9. ^ a b c Dr. Harold P. Gerrish. NHC Miriam report p. 2 accessed April 10, 2006
  10. ^ National Hurricane Center. NHC Tropical Cyclone Climatology accessed April 10, 2006
  11. ^ Stephen Caparotta, D. Walston, Steven Young and Gary Padgett. NHC Tropical Cyclone FAQ Subject E15 accessed April 10, 2006
  12. ^ Dr. Harold P. Gerrish. NHC Joan report p. 8 accessed April 10, 2006
  13. ^ Dr. Harold P. Gerrish. NHC Joan report p. 9 accessed April 10, 2006
  14. ^ Dr. Harold P. Gerrish. NHC Miriam report p. 4 accessed April 10, 2006
  15. ^ a b c Fox, Robert Nicaragua Still Reeling in Wake of a Hurricane accessed April 10, 2006
  16. ^ Trinidad and Tobago Meteorological Service, Tropical Cyclones Affecting Trinidad and Tobago, 1725 to 2000 p 14. Accessed February 18, 2007
  17. ^ a b David Longshore Encyclopedia of Hurricanes, Typhoons, and Cyclones pg. 203
  18. ^ C. Howard Richardson and David J. Nemeth (April 1991). "Hurricane-borne African Locusts (Schistocerca gregaria) on the Windward Islands". GeoJournal 23 (4). DOI:10.1007/BF00193608. ISSN 0343-2521. http://www.springerlink.com/content/t1172775v008ht02/. Retrieved 2009-11-07. 
  19. ^ a b United Nations Department of Humanitarian Affairs (1988). "Hurricane Joan — Oct 1988 UN DHA Situation Reports 1-13". ReliefWeb. http://www.reliefweb.int/rwarchive/rwb.nsf/db900sid/ACOS-64BKFC?OpenDocument&emid=ACOS-635NXR. Retrieved August 26, 2009. [dead link]
  20. ^ a b c d e f Preston, Julia, Washington Post (1988) Response Tepid to Managua's Aid Plea accessed April 10, 2006
  21. ^ Vetiver Network International. Vetiver as a Component of World Relief's Sustainable Agriculture Program in Nicaragua accessed April 11, 2006
  22. ^ Katherine Yih, Douglas h. Boucher, John H. Vandermeer, and Nelson Zamora (1991). "Recovery of the Rain Forest of Southeastern Nicaragua After Destruction by Hurricane Joan". Biotropica 23 (2): 106–113. http://www.bio-nica.info/biblioteca/Yih1991RainForestHurricane.pdf. Retrieved 2009-11-07. 
  23. ^ United States Library of Congress. Nicaragua Historical Background accessed April 11, 2006
  24. ^ David Longshore Encyclopedia of Hurricanes, Typhoons, and Cyclones pg. 204
  25. ^ Lindsay Gruson (1988-10-23). "Hurricane Hits Nicaragua; Toll for Week Is Now 65". New York Times. http://www.nytimes.com/1988/10/23/world/hurricane-hits-nicaragua-toll-for-week-is-now-65.html. Retrieved 2009-11-07. 
  26. ^ McLean (December 19, 1988). "Natural disasters took record tolls this year". USAToday. http://pqasb.pqarchiver.com/USAToday/access/55890159.html?dids=55890159:55890159&FMT=ABS&FMTS=ABS:FT&type=current&date=Dec+19%2C+1988&author=&pub=USA+TODAY+(pre-1997+Fulltext)&desc=Natural+disasters+took+record+tolls+this+year&pqatl=google. Retrieved August 26, 2009. 
  27. ^ Primer on Natural Hazard Management in Integrated Regional Development Planning chpt. 12
  28. ^ Hydrometeorological Prediction Center. Hurricane Joan-Miriam. Retrieved on 2007-01-31.
  29. ^ United Nations General Assembly Resolution 43/17: Emergency assistance to Nicaragua, Costa Rica, Panama and other countries affected by hurricane (sic) Joan accessed April 11, 2006
  30. ^ Padgett, G, J. Beven, & J. F. Free (2004) NHC Tropical Cyclone FAQ Subject B3: What names have been retired in the Atlantic and East Pacific basin? accessed May 21, 2006
  31. ^ World Meteorological Organization (2005) Fact Sheet Tropical Cyclone Names accessed May 21, 2005

  External links

 

Tropical cyclones of the 1988 Atlantic hurricane season

Saffir–Simpson Hurricane Scale
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