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Hurricane Juliette (2001)

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Hurricane Juliette
Category 4 major hurricane (SSHWS/NWS)
Hurricane Juliette off the coast of Mexico
FormedSeptember 21, 2001
DissipatedOctober 3, 2001
Highest winds1-minute sustained: 145 mph (230 km/h)
Lowest pressure923 mbar (hPa); 27.26 inHg
Fatalities12 total
Damage$400 million (2001 USD)
Areas affectedBaja California, Northwestern Mexico
Part of the 2001 Pacific hurricane season

Hurricane Juliette was a long lasting Category 4 hurricane in the 2001 Pacific hurricane season. It caused 12 deaths and $400 million (2001 USD; $688 million 2024 USD) in damage when it hit Baja California in late September.[1][2]

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
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
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

The tropical wave that later produced Juliette first produced Tropical Depression Nine in the Atlantic Ocean. Forming in the Caribbean Sea, the depression dissipated over Central America on September 20, a day after formation. By early on September 21, the remnants of Nine had re-organized in Pacific, and was then upgraded into a tropical depression.[3] Six hours later, the depression was upgraded into a tropical storm.[3] However, the storm was not named Juliette until later that day, when the storm was operationally believed to have formed (which came after reports from a Hurricane Hunter aircraft).[4]

In an environment of light wind shear, meteorologists predicted to new system to reach hurricane intensity within two days.[5] Within 100 mi (160 km) off the coast of Guatemala, the system moved generally west-northwest over the next five days, paralleling the Mexican Riviera.[3] While a major decrease in thunderstorm activity initially inhibited intensification[6] it became better organized on September 22.[7] By the afternoon of September 23, Juliette had become a hurricane, with maximum sustained winds reaching 75 mph (120 km/h).[3]

Upon becoming a hurricane, infrared imagery suggested that the hurricane had developed a pinhole eye. Forecasters were also expecting Juliette to reach major hurricane status, Category 3 or higher on the Saffir-Simpson Hurricane Scale. Steadily moving west, the storm underwent rapid deepening.[8][9] By 1800 UTC September 23, Juliette had reached Category 2 status, with winds of 100 mph (145 km/h). Shortly thereafter, the hurricane intensified into a Category 4 storm; bypassing the Category 3 stage, an unusual occurrence for a tropical cyclone. In all, Juliette had intensified 60 mph (130 km/h) in 18 hours.[3]

Hurricane Juliette with three simultaneous eyewalls

After reaching its secondary peak as a low-end Category 4 hurricane, microwave and Hurricane Hunter data indicated that Juliette underwent an eyewall replacement cycle. Subsequently, Juliette weakened into a Category 3 hurricane on September 24, and then into a high-end Category 2 system, with 110 mph (160 km/h) winds.[3] However, by September 25, Juliette had completed the cycle, and quickly regained major hurricane status.[10] The hurricane developed very cold cloud top temperatures.[11] along with a classic structure of an intense hurricane and a very well-defined eye.[12] A large hurricane,[13] Juliette reached its peak intensity of 145 mph (230 km/h) the same day.[3] Around that time, Reconnaissance Aircraft reported a minimum central pressure of 923 mbar, the third lowest measured pressure ever recorded in the basin behind Hurricane Ava in 1973; other hurricanes such as Hurricane Linda during 1997 have had lower pressures estimated via satellite imagery.[13]

Shortly after its peak, a strong trough of low pressure brought Hurricane Juliette northward, where the cyclone moved over cooler water temperatures.[3] While Juliette initially maintained well-defined banding features and an impressive upper-level outflow,[14] and another eyewall replacement cycle took toll on the storm, this time three centric eyewall formed compared to the normal two, a very rare occurrence.[15] Moving much further east than anticipated,[16] an eye was no longer visible on satellite imagery by September 27.[17]

Juliette slowed its forward motion as it continued north-northwestward, and weakened to a tropical storm on September 28.[3] Even though thunderstorm activity decreased markedly, Tropical Storm Juliette maintained a well-defined atmospheric circulation and a large area of gale-force winds.[18][19] A small area of warm waters near the Baja California Peninsula allowed the storm to re-strengthen into a hurricane early on September 29 as convection increased. At this time, computer models suggested two distinct possibilities of the storm's path. Some suggested Hurricane Juliette to move inland while others expected the hurricane to parallel the peninsula.[20]

Meandering offshore, the center soon became difficult to locate.[21] The low-level circulation became exposed from the deep convection[22] as increased vertical shear again took toll Juliette, and the storm hit Baja California near Cabo San Lucas as a minimal tropical storm at 0000 UTC September 30. Although scientist noted the possibility of slight re-intensification over the Gulf of California,[23] Juliette's low level circulation remained as it crossed the peninsula, and it restrengthened in the northern Sea of Cortez[3] as the circulation became better defined.[24] Lacking deep convection,[25] it drifted westward, where, after making a landfall northeastern Baja California, it finally dissipated early on October 3 chinese and Japanese and korean eyes are extremely small :)

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[3]

Preparations

See also: Tropical cyclone warnings and watches

Not long after Juliette was designated as a tropical storm on September 21, the Government of Mexico issued a tropical storm warning for areas between Salina Cruz and Acapulco and a tropical storm watch for areas west of Acapulco to Lázaro Cárdenas, Michoacán. Later that day, the warning was updated to include areas through Zihuatanejo and a watch through Manzanillo, Colima. Once Juliette turned westward and no longer posed a threat to the country, all watches and warnings were discontinued by the afternoon of September 22. However, due to the system's slow, erratic track on September 23, a hurricane watch and tropical storm warning was issued for areas between Lázaro Cárdenas and Cabo Corrientes. These advisories remained in place through the afternoon of September 25, by which time Juliette had picked up forward momentum and tracked northwestward. By September 26, the hurricane threatened land once more, prompting watches and warnings for the Baja California Peninsula. Initially, only a tropical storm watch was issued for the southern tip of Baja California Sur but, as the storm neared the peninsula, more extensive advisories were declared. By the morning of September 27, a hurricane warning covered much of both coasts of Baja California Sur as the storm was forecast to track directly through the state. The following day, a tropical storm warning was issued for areas between Mazatlán and Yavaros in Sonora but, this was discontinued later that day. As the storm stalled offshore and weakened, all hurricane warnings were replaced with tropical storm warnings which were later canceled once Juliette weakened to a tropical depression.[3] Forecasters also noted the possibility of moisture spreading into the Southwestern portion of the United States.[25]

Impact

Storm total rainfall for Juliette

Southern Mexico

Along coastal areas around Acapulco, the storm brought heavy rainfall and strong winds.[26] Offshore, one fisherman was killed by the storm after he set sail directly into it. In Guerrero, heavy rains triggered flash floods that washed out two bridges and destroyed 20 homes.[27] As rains continued to fall over the following days, mountainsides gave way, producing landslides which killed seven people. Strong winds also uprooted trees and downed power lines in several states. Additionally, two fishermen were listed as missing after venturing out into 5 m (16 ft) swells produced by Juliette.[28] Throughout Michoacán, an estimated 1,000 people were left homeless by the hurricane.[29]

Baja California

As Hurricane Juliette stalled just off the coast of Baja California Sur, it produced prolonged heavy rainfall in the region. A large swath of the state, along the eastern coast, received more than 10 in (250 mm) of rain and areas along the southern tip reported more than 20 in (510 mm). A maximum of 39.8 in (1,010 mm) fell in Caudaño,[30] the highest known total ever recorded from a tropical cyclone in the sate.[31]

The extreme rainfall led to widespread flooding and mudslides across the state. Along the southern tip of the peninsula, roughly 3,000 people were stranded after their town was isolated by flood waters. About 800 more people had to be evacuated due to the state of their homes.[32] Damage from the floods were widespread in the area, with more than 9,000 people reported damage to their property from the storm. At least two people were killed across the peninsula in storm-related incidents.[33] Damage from Hurricane Juliet was estimated at $400 million (2001 USD; $688 million 2024 USD).[2]

Northern Mexico and the United States

Late in Juliette's life and in its aftermath, the remnants brought strong thunderstorm activity to the American Southwest, knocking down trees and power lines in southern California. Rainfall in the United States peaked at 0.9 inches in Patagonia, Arizona.[34]

Aftermath and records

Following the significant damage across southern states, Mexican authorities and the army deployed transport and rescue aircraft along with medical teams and emergency supplies.[29] As reports of damage began come out of Baja California Sur, the state governor declared the entire area a disaster zone.[32]

At its peak, Juliette attained a minimum pressure of 923 mbar (hPa; 27.26 inHg), ranking it as the fifth strongest Pacific hurricane on record, along with Olivia in 1994. However, in subsequent years, five other storms have surpassed it and the storm now ranks as the tenth strongest in the basin. In addition, it holds the record for having the lowest barometric pressure of any Category 4 hurricane in the region, a record shared with Olivia.[35]

See also

References

  1. ^ Diapositiva 1
  2. ^ a b "International Disaster Database". Centre for Research on the Epidemiology of Disasters. 2024. Retrieved July 7, 2010.
  3. ^ a b c d e f g h i j k l Lawrence, Miles (November 30, 2001). "Hurricane Juliette Tropical Cyclone Report". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved July 7, 2010. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  4. ^ Franklin, James (September 21, 2001). "Tropical Storm Juliette Discussion 1". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  5. ^ Lawrence, Miles (September 21, 2001). "Tropical Storm Juliette Discussion 2". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  6. ^ Stewart, Stacey (September 22, 2001). "Tropical Storm Juliette Discussion 4". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  7. ^ Stewart, Stacey (September 22, 2001). "Tropical Storm Juliette Discussion 7". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  8. ^ Avila, Lixon (September 23, 2001). "Hurricane Juliette Discussion 9". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  9. ^ Avila, Lixon (September 23, 2001). "Hurricane Juliette Discussion 10". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  10. ^ Stacey, Stewart (September 25, 2001). "Hurricane Juliette Discussion 16". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  11. ^ Stacey, Stewart (September 25, 2001). "Hurricane Juliette Discussion 17". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  12. ^ Pasch, Robert (September 25, 2001). "Hurricane Juliette Discussion 18". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  13. ^ a b Pasch, Robert (September 25, 2001). "Hurricane Juliette Discussion 19". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  14. ^ Avila, Lixon (September 26, 2001). "Hurricane Juliette Discussion 22". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  15. ^ Beven, Jack (September 27, 2001). "Hurricane Juliette Discussion 24". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  16. ^ Avila, Lixon (September 27, 2001). "Hurricane Juliette Discussion 25". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  17. ^ Franklin, James (September 27, 2001). "Hurricane Juliette Discussion 26". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  18. ^ Avila, Lixon (September 28, 2001). "Hurricane Juliette Discussion 30". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  19. ^ Avila, Lixon (September 28, 2001). "Hurricane Juliette Discussion 31". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  20. ^ Beven, Jack (September 29, 2001). "Hurricane Juliette Discussion 32". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  21. ^ Avila, Lixon (September 29, 2001). "Hurricane Juliette Discussion 34". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  22. ^ Beven, Jack (September 30, 2001). "Hurricane Juliette Discussion 36". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  23. ^ Pasch, Robert (September 30, 2001). "Hurricane Juliette Discussion 39". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  24. ^ Franklin, James (October 1, 2001). "Hurricane Juliette Discussion 41". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  25. ^ a b Beven, Jack (October 1, 2001). "Hurricane Juliette Discussion 42". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved May 12, 2012.
  26. ^ Associated Press (September 23, 2001). "Hurricane Juliette gathers strength, hits Mexican coast". ReliefWeb. Retrieved July 7, 2010.
  27. ^ Agence France-Presse (September 24, 2001). "Hurricane Juliette leaves one dead, destruction in its wake". ReliefWeb. Retrieved July 7, 2010.
  28. ^ Deutsche Presse Agentur (September 26, 2001). "Hurricane Juliette leaves seven dead in Mexico". ReliefWeb. Retrieved July 7, 2010.
  29. ^ a b United Nations Office for the Coordination of Humanitarian Affairs (September 28, 2001). "OCHA Situation Report No. 4". ReliefWeb. Retrieved July 7, 2010.
  30. ^ Roth, David. "Hurricane Juliette - September 25-October 3, 2001". Hydrometeorological Prediction Center. National Oceanic and Atmospheric Administration. Retrieved July 7, 2010.
  31. ^ Roth, David (2010). "Tropical Cyclone Maxima Per Mexican State". Hydrometeorological Prediction Center. Retrieved July 7, 2010.
  32. ^ a b United Nations Office for the Coordination of Humanitarian Affairs (September 29, 2001). "Mexico - Hurricane Juliette OCHA Situation Report No. 5". ReliefWeb. Retrieved July 7, 2010.
  33. ^ Deutsche Presse Agentur (September 29, 2001). "Hurricane "Juliette" leaves two dead in Mexico's Baja California". ReliefWeb. Retrieved July 7, 2010.
  34. ^ Roth, David M. (January 3, 2023). "Tropical Cyclone Point Maxima". Tropical Cyclone Rainfall Data. United States Weather Prediction Center. Retrieved January 6, 2023. Public Domain This article incorporates text from this source, which is in the public domain.
  35. ^ "Eastern North Pacific Tracks File 1949–2009". National Hurricane Center. 2010. Retrieved July 6, 2010.
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