Tropical Storm Leslie (2000)

Tropical Storm Leslie
Tropical storm (SSHWS/NWS)

A satellite photo shows a large cloud to the southwest of Bermuda

Tropical Storm Leslie off the Florida coast
Formed October 4, 2000
Dissipated October 12, 2000
(Extratropical after October 7, 2000)
Highest winds 1-minute sustained: 45 mph (75 km/h)
Lowest pressure 1006 mbar (hPa); 29.71 inHg
Fatalities 3 indirect
Damage $950 million (2000 USD)
Areas affected Cuba, Bahamas, Florida, Bermuda, Atlantic Canada, Europe
Part of the 2000 Atlantic hurricane season

Tropical Storm Leslie was a weak, short-lived tropical cyclone that was never well-organized; however, its precursor was costlier than any other tropical cyclone in the 2000 Atlantic hurricane season. The twelfth named storm of the season, Leslie formed on October 4 over eastern Florida as a subtropical cyclone, out of a trough of low pressure. Strengthening over open waters, it attained enough tropical characteristics to be reclassified as Tropical Storm Leslie on October 5. The storm reached peak winds of 45 mph (75 km/h) before wind shear weakened it, and on October 7 transitioned into an extratropical cyclone over the open Atlantic Ocean. Leslie lasted three more days before losing its identity.

The precursor to Leslie produced torrential rainfall across Florida, peaking at 17.5 in (440 mm). The flooding damaged thousands of houses and caused three indirect deaths. Damage in southern Florida totaled $950 million (2000 USD),[nb 1] around half of which was from agricultural damage. After the flooding, portions of south Florida were declared a disaster area. Because of the limited impact as a tropical cyclone, the name Leslie was not retired in the Spring of 2001.

Meteorological history

The track of a tropical storm, it starts over central Florida, moves out to the Atlantic Ocean and becomes extratropical
Map plotting the track and intensity of the storm according to the Saffir–Simpson hurricane wind scale

On September 27, a tropical wave entered the eastern Caribbean Sea, believed to be the same that spawned Hurricane Isaac. It moved generally westward, and remained weak with sporadic thunderstorm activity. The wave traversed around the periphery of Hurricane Keith, and by October 2, the system produced a mid-level circulation just south of western Cuba. It continued to organize, prompting a reconnaissance aircraft to investigate the area. The system lacked a surface circulation center and remained an elongated trough of low pressure. The tropical wave interacted with an approaching frontal trough, while its mid-level center turned to the northeast and made landfall near Sarasota, Florida on October 4.[1]

While over land, a surface circulation developed near Orlando, and the National Hurricane Center designated the system as Subtropical Depression One. The subtropical designation was because the convection was far-removed from the center.[1] Additionally, an upper-level trough provided outflow, instead of an anticyclone as found in tropical cyclones.[2] The subtropical depression moved to the east-northeast, and steadily organized as deep convection developed closer to the center. Initially, the strongest winds were 175 mi (280 km) from the center, but by the morning of October 5, the distance decreased to 85 mi (135 km). Based on its organization and winds of 40 mph (65 km/h), the system was re-designated as Tropical Storm Leslie.[1]

A satellite picture shows a large area of clouds over Florida
Precursor trough over Florida

The National Hurricane Center initially forecast further intensification to 60 mph (95 km/h),[3] although the agency also noted the that the circulation could dissipate, due its fast forward motion toward the east-northeast. Ultimately, wind shear prohibited significant strengthening,[4] and Leslie attained peak winds of 45 mph (70 km/h).[1] The storm interacted with an approaching cold front and became extratropical on October 7, 375 mi (600 km) north of Bermuda. It accelerated to the northeast and passed over Newfoundland on October 8. The remnants of Leslie turned to the east, then southeast, strengthening to near-hurricane force winds before losing its identity near Ireland on October 10.[1]

Preparations

The National Hurricane Center predicted the trough of low pressure to drop very heavy rainfall across western Cuba and Florida.[5] The National Weather Service in Miami issued a flood watch for southern Florida, stating that the system could produce flooding on roads and in low-lying areas.[6] In general, however, there was little warning for the flooding in South Florida.[7] While Leslie was moving east-northeastward, it posed a threat to Bermuda, prompting officials to issue a tropical storm watch at 0300 UTC on October 6. Six hours later, tropical storm watch was upgraded to a tropical storm warning. However, the storm passed well to the west, and the warnings were dropped by late on October 6.[1]

Impact

In southern Florida, Subtropical Depression Leslie rained the most in the southeast and in an area equidistant from the coasts.
Rainfall totals from Leslie

The precursor disturbance of Leslie dropped heavy rainfall across central and western Cuba, peaking at 8.25 in (210 mm) in the province of Havana. Numerous other areas reported over four in (100 mm), as well.[8] In southern Florida, the disturbance produced torrential rainfall, with a maximum of 17.5 in (440 mm) in South Miami.[1] Two areas, one to the south of Lake Okeechobee and the other being the Miami area, received over 10 in (255 mm) of rain.[9] The torrential rainfall was described as similar to Hurricane Irene one year prior.[10] The system produced two weak F0 tornadoes in Miami-Dade County,[1] one of which tore off a roof of a fire station in Hialeah.[11]

The torrential rainfall in Florida flooded about 93,000 homes, affecting 214,000 residents in Miami-Dade County.[10] An incomplete damage survey of Miami-Dade County indicated the flooding destroyed 1,005 houses, severely damaged 1,358, and caused minor damage to 3,443.[12] The flood waters, which were four ft (1.2 m) deep in places, stranded many in their houses, forcing them to use canoes or inflatable rafts to move to higher grounds. All schools in the Miami area were closed, and all non-essential Miami-Dade County employees were asked to stay home. Numerous flights in Miami International Airport were canceled or delayed, although the airport remained opened.[11] The flooding, which was greatest in Sweetwater, West Miami, Hialeah, Opa-locka, and Pembroke Park, lasted up to a week in areas.[13] The extreme flooding damaged electrical stations, leaving more than 27,000 without power.[10] The flooding indirectly killed three people, two from drowning as a result of driving vehicles into deep water,[1] and one when a man fell from a tall building while trying to unclog a roof drain.[11] Property damage totaled $450 million.[13]

A house with flooding that surrounds the house like a river
Flooded house in Miami-Dade County

Flood waters in Miami-Dade County covered about 40,000 acres (160 km²) of farmland. The damage was worsened since the flooding occurred at the beginning of the planting period for the winter season. Flooded nurseries and fields resulted in about $500 million in agricultural damage, including $60 million in tropical fruit and $397 million in ornamental crops.[14] The U.S. Department of Agriculture declared 16 Florida counties, including Miami-Dade, Collier, and Palm Beach, as primary disaster areas due to flooding, making farmers and their families there eligible for USDA emergency farm loans. The same agency made 22 other counties, including Broward, eligible for loans due to their proximity to the disaster areas.[15]

As an extratropical storm, Leslie produced winds of around 40 mph (65 km/h) while making landfall in Newfoundland. It also caused waves of up to 16 ft (five m) in height, and brought up to one in (30 mm) of rain. The overall impact in this region was minor.[16]

Aftermath

In the immediate aftermath, cleanup workers could not work until the flood waters receded. In addition, abandoned cars blocked the path of utility workers.[10] Following the storm, President Bill Clinton declared Broward, Collier, Miami-Dade, and Monroe Counties as disaster areas, allowing for the use of federal funds for the disaster victims.[17] In addition, Miami-Dade and Broward Counties were declared eligible for Federal Infrastructure Assistance, which provided for 75% of the debris removal cost and the repairing or replacement of public roads, buildings, parks, and treatment plants.[18] By ten days after the storm, government agencies distributed 105,000 meals, 141,000 US gal (530,000 L) of water, and 357,000 lb (162,000 kg) of ice.[19] Thousands visited the five Disaster Recovery Centers, where information on disaster-related issues was given.[20] By around two months after the flooding, over 51,000 people applied for federal aid, with assistance totaling to more than $170 million.[21]

See also

Notes

  1. ↑ All damage figures are in 2000 USD, unless otherwise noted

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 James L. Franklin; Daniel P. Brown (2000-11-05). Tropical Storm Leslie Tropical Cyclone Report (Subtropical Depression One) (Report). National Hurricane Center. Retrieved 2010-11-13.
  2. ↑ James L. Franklin (2000-10-04). Subtropical Depression One Tropical Discussion Number One (Report). National Hurricane Center. Retrieved 2010-11-13.
  3. ↑ James L. Franklin (2000-10-05). Tropical Storm Leslie Discussion Four (Report). National Hurricane Center. Retrieved 2010-03-30.
  4. ↑ James L. Franklin (2000-10-05). Tropical Storm Leslie Discussion Five (Report). National Hurricane Center. Retrieved 2010-03-30.
  5. ↑ James L. Franklin; Daniel P. Brown (2000). October 2, 2000 Tropical Weather Outlook (Report). National hurricane Center. Retrieved 2006-06-20.
  6. ↑ Flood Watch of most of South Florida through Tuesday (Report). National Weather Service. 2000. Archived from the original on July 14, 2004. Retrieved 2006-06-20.
  7. ↑ Pre-Storm / Storm / and Storm Recovery Operations for the South Dade Conveyance System (Report). South Dade Conveyance System. Archived from the original on 2011-07-22. Retrieved 2006-06-21.
  8. ↑ Jose Rubiera; Maritza Ballester (2000). Temporada ciclónica de 2000 en el Atlántico Norte (Report) (in Spanish). Instituto de Meteorología de la República de Cuba. Retrieved 2010-11-24.
  9. ↑ David M. Roth (2007-06-09). Subtropical Storm Leslie - October 2–6, 2000 (Report). Hydrometeorological Prediction Center. Retrieved 2010-11-24.
  10. ↑ 10.0 10.1 10.2 10.3 Christina Ward (2000). "Flooding Kills Two in South Florida". American Red Cross. Archived from the original on 2008-03-13. Retrieved 2010-11-24.
  11. ↑ 11.0 11.1 11.2 Susan Candiotti (2000-10-04). "Miami bails out after floods take city by storm". CNN. Archived from the original on 2007-02-04. Retrieved 2010-11-24.
  12. ↑ Tom Ross (2000-11-15). Weather Log October 1–10th, 2000 (Report). National Climatic Data Center. Retrieved 2010-11-24.
  13. ↑ 13.0 13.1 Storm Data and Unusual Weather Phenomena: October 2000 (PDF) (Report). National Climatic Data Center. 2000. Retrieved 2013-12-18.
  14. ↑ Bob Blankenship (2000-10-05). "Crawford Seeks Federal Assistance For Dade County Farmers Hit By Flooding". Florida Department of Agriculture. Archived from the original on 2012-02-04. Retrieved 2010-11-24.
  15. ↑ Dann Stuart (2001-02-26). "Thirty-Eight Florida Counties Eligible for USDA Emergency Farm Loans". Farm Service Agency. Archived from the original on 2005-09-15. Retrieved 2010-11-24.
  16. ↑ Peter Bowyer (2000). 2000 Tropical Cyclone Season Summary (Report). Environment Canada. Retrieved 2010-11-24.
  17. ↑ President Orders Disaster Aid For Florida Storm Victims (Report). Federal Emergency Management Agency. 2000-10-05. Retrieved 2013-12-18.
  18. ↑ Miami-Dade, Broward Declared Eligible For Federal Infrastructure Assistance (Report). Federal Emergency Management Agency. 2000-10-06. Retrieved 2013-12-18.
  19. ↑ Florida Flood Disaster Update (Report). Federal Emergency Management Agency. 2000-10-13. Retrieved 2013-12-18.
  20. ↑ Mobile Disaster Recovery Center Moves To North Miami Beach; Broward County Disaster Recovery Center To Close Saturday (Report). Federal Emergency Management Agency. 2000-10-18. Retrieved 2013-12-18.
  21. ↑ South Florida Disaster Update: More Than $170 Million Approved; Applications Top 51,000 Mark as Dec. 4 Deadline Approaches (Report). Federal Emergency Management Agency. 2000. Retrieved 2013-12-18.

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