Tropical Storm Chantal (2001)

Infobox Hurricane
Name=Tropical Storm Chantal
Type=Tropical storm
Year=2001
Basin=Atl
Image location=Chantal 20 aug 2001 1935Z.jpg


Formed=August 14, 2001
Dissipated=August 22, 2001
1-min winds=60
Pressure=997
Da

Inflated=1
Fatalities=0 direct, 2 indirect
Areas=Windward Islands, Jamaica, Belize, Mexico
Hurricane season=2001 Atlantic hurricane season Tropical Storm Chantal was a poorly forecast Atlantic tropical cyclone that moved across the Caribbean Sea in August 2001. Chantal developed from a tropical wave on August 14 in the tropical Atlantic Ocean. It tracked rapidly westward for much of its duration, and after degenerating into a tropical wave it passed through the Windward Islands. Chantal reached a peak intensity of 70 miles per hour (110 km/h) twice in the Caribbean Sea, and each time it was anticipated to attain hurricane status; however, wind shear and later land interaction prevented strengthening to hurricane status. On August 21 Chantal moved ashore near the border of Mexico and Belize, and the next day it dissipated.

In the Windward Islands, lightning caused two indirect deaths in Trinidad. Chantal dropped light to moderate rainfall across its path, most significantly in Quintana Roo in Mexico where it caused widespread mudslides. Damage in Belize totaled $4 million (2001 USD, $4.8 million 2008 USD), due to the combined impact of high waves, moderate winds, and rainfall. Overall damage was minor.

Meteorological history

A tropical wave moved off the coast of Africa on August 11. Associated deep convection quickly decreased after tracking westward through the tropical Atlantic Ocean, although by August 13 a broad low pressure area and closed circulation developed along the wave.cite web|author=Franklin, James|date=2001-09-06|title=Tropical Storm Chantal Tropical Cyclone Report|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/2001chantal.html] Environmental conditions favored tropical development, and the system gradually became better organized, [cite web|first=Lixion|last=Avila|coauthor=Mainelli, Michelle|date=2001-08-14|title=Tropical Weather Outlook|publisher=National Hurricane Center|accessdate=2008-05-08|url=ftp://ftp.met.fsu.edu/pub/weather/tropical/Outlook-A/2001/Aug/2001081415.ABNT20] although convection was initially limited near the center. [cite web|author=Pasch, Richard|date=2001-08-14|title=Tropical Weather Outlook (2)|publisher=National Hurricane Center|accessdate=2008-05-08|url=ftp://ftp.met.fsu.edu/pub/weather/tropical/Outlook-A/2001/Aug/2001081421.ABNT20] On August 14, convection increased northwest of the center and became sufficiently well-organized for the system to be considered a tropical depression; at the time, it was located about 1500 miles (2400 km) east of the southern Windward Islands.

Situated to the south of a strong subtropical ridge, the depression tracked rapidly westward. With easterly wind shear, the structure was initially disorganized, although the system was forecast to attain tropical storm status within 48 hours of developing, due to anticipated favorable conditions.cite web|author=Avila, Lixion Avila|date=2001-08-15|title=Tropical Depression Four Discussion One|publisher=National Hurricane|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.001.html] One computer model predicted the depression would reach winds of around 115 miles per hour (185 km/h) by four days after development.cite web|author=Avila, Lixion|date=2001-08-15|title=Tropical Depression Four Discussion Two|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.002.html] Banding features increased while the satellite presentation continued to improve, and at 1200 UTC on August 16 the depression was upgraded to Tropical Storm Chantal about 370 miles (595 km) east of Barbados. [cite web|author=Avila, Lixion|date=2001-08-16|title=Tropical Storm Chantal Public Advisory Four-A|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/pub/al042001.public_a.004.html] At the same time however, a QuikSCAT pass suggested the system did not contain a low-level circulation, and in post-season analysis, the National Hurricane Center estimated the system degenerated into a tropical wave rather than attain tropical storm status. This was confirmed by a Hurricane Hunters flight into the system.cite web|author=Pasch, Richard|date=2001-08-16|title=Tropical Storm Chantal Special Discussion Seven|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.007.html]

Despite lacking a closed circulation, the overall structure remained well-organized, and with a favorable upper-level environment the possibility of regeneration into a tropical cyclone was noted. Early on August 17, the remnants of Chantal passed over the Windward Islands with winds of tropical storm force. After entering the Caribbean Sea, the system slowed while its convective pattern expanded and became more symmetric. Hurricane Hunters confirmed that a small circulation developed about 290 miles (265 km) south of Saint Croix, and accordingly the system developed into a tropical storm. Forecasters described the upper-level environment as "ideal for [a] tropical cyclone to intensify", with winds of 80 miles per hour (130 km/h) forecast within a few days. The cyclone was predicted to maintain a west-northwestward track toward the northwestern Caribbean and Gulf of Mexico. [cite web|author=Avila, Lixion|date=2001-08-17|title=Tropical Storm Chantal Discussion Nine|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.009.html] On August 18, the winds increased to 65 miles per hour (105 km/h), although an increase in forward motion caused the low-level circulation to become separated from the deep convection. The storm again decelerated on August 19, allowing re-organization and for Chantal to attain peak sustained winds of 70 miles per hour (110 km/h) about 185 miles (295 km) south of Kingston, Jamaica.

After reaching peak winds, Tropical Storm Chantal became disorganized while the center became ill-defined and situated to the west-southwest of the main area of convection; this was due to unfavorable upper-level winds, although computer models continued to forecast a more favorable upper-level environment. [cite web|author=Pasch, Richard|date=2001-08-19|title=Tropical Storm Chantal Discussion Seventeen|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.017.html] By early on August 20, Hurricane Hunters reported several low-level circulations embedded within a large low pressure area.cite web|author=Stewart, Stacy|date=2001-08-20|title=Tropical Storm Chantal Discussion Nineteen|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.019.html] Later that day, wind shear decreased when the storm moved into the Gulf of Honduras. Chantal became much better organized, again reaching peak winds of 70 miles per hour (110 km/h) before making landfall early on August 21 near the border of Mexico and Belize. Initially, the storm was forecast to cross the Yucatán Peninsula and Bay of Campeche and make a second landfall in Veracruz state.cite web|author=Franklin, James|date=2001-08-20|title=Tropical Storm Chantal Discussion Twenty-Two|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.022.html] Chantal slowly weakened over land while moving slowly across northern Belize. [cite web|author=Beven, Jack|date=2001-08-21|title=Tropical Storm Chantal Discussion Twenty-Four|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.024.html] Convection decreased markedly late on August 21, [cite web|author=Beven, Jack|date=2001-08-21|title=Tropical Storm Chantal Discussion Twenty-Five|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.025.html] and early the next day Chantal weakened to tropical depression status. The upper- and middle-level circulations turned to the northeast while the low-level circulation turned to the west-southwest further inland. [cite web|author=Franklin, James|date=2001-08-21|title=Tropical Storm Chantal Discussion Twenty-Six|publisher=National Hurricane Center|accessdate=2008-05-08|url=http://www.nhc.noaa.gov/archive/2001/dis/al042001.discus.026.html] Weakening continued, and late on August 22 Chantal dissipated over Tabasco state in Mexico.

Preparations

The National Hurricane Center issued a tropical storm watch for Barbados, St. Vincent, and Saint Lucia on August 15. The following day the watches were changed to warnings, since forecasters predicted that the system would reach tropical storm status. Additional watches and warnings were also issued for the rest of Windward Islands.

Late on August 17, the government of Jamaica issued a hurricane watch for the island, due to anticipated strengthening. The next day, it was upgraded to a hurricane warning briefly before being amended to a tropical storm warning, due to the storm's weakening in the central Caribbean. In the country, officials advised fishermen to return to harbor, while some flights into Norman Manley International Airport were canceled. A tropical storm warning was also issued for the Cayman Islands, where an emergency shelter was opened. [cite news|publisher=Cayman Net News|date=2001-08-21|title=Chantal Passes, Little Rain and Lightning­ but no Storm|accessdate=2008-06-23|url=http://www.caymannetnews.com/Archive/Archive%20Articles/August%202001/Issue%20103/Issue%20103%20stories.html] There, tourists were recommended to temporarily leave the islands.cite news|work=Saint Petersburg Times|date=2001-08-19|title=Chantal pulls together, heads toward Yucatan|accessdate=2008-05-08]

About 50 hours before landfall, a tropical storm watch was issued for Belize and the eastern Yucatán Peninsula, and about 12 hours later it was upgraded to a hurricane watch. When the lack of significant intensification became apparent, a tropical storm warning was added for much of the Yucatán Peninsula and later for a portion of the Mexican coast along the Bay of Campeche. As the storm approached, nearly 2,500 people in vulnerable areas of eastern Mexico evacuated to safer areas. About 8,000 people evacuated in Belize, primarily on offshore islands. The government of Belize opened its emergency operation center and evacuated several hospitals.cite web|author=United Nations Office for the Coordination of Humanitarian Affairs|date=2001-08-21|title=Caribbean - Tropical Storm Chantal OCHA Situation Report No. 4|publisher=ReliefWeb|accessdate=2008-05-08|url=http://www.reliefweb.int/rw/RWB.NSF/db900SID/ACOS-64D6A3?OpenDocument&Click= Reliefweb.int] About 250 airline flights were canceled, and some cruise ship paths were diverted to safer locations. [cite web|author=Merzer, Martin|url=http://www.latinamericanstudies.org/mexico/mexico-storm.htm|title=Chantal buffets, drenches Yucatan|publisher=The Miami Herald|accessdate=2006-07-26]

Impact

As a strong tropical wave, Chantal passed through the Windward Islands. The island of Martinique reported sustained winds of 39 miles per hour (63 km/h) with gusts to 56 miles per hour (91 km/h). On August 16, lightning from the system killed two brothers in southern Trinidad.cite news|work=Associated Press|date=2001-08-20|title=Jamaica in path of lethal storm|accessdate=2008-05-08] Also on the island, heavy rainfall caused flooding and road washouts. [cite news|author=Potter, Angela|date=2001-08-17|title=Two lightning deaths in Trinidad; Chantal regains force over Caribbean|publisher=Associated Press|accessdate=2008-05-08]

While tracking across the eastern Caribbean Sea, the outer rainbands of Chantal produced light to moderate rainfall across Puerto Rico and the United States Virgin Islands. In Puerto Rico, the highest rainfall total was convert|2.4|in|mm in Rio Piedras.cite web|author=Roth, David|date=2007-01-20|title=Tropical Storm Chantal Rainfall Summary|publisher=Hydrometeorological Prediction Center|accessdate=2008-05-08|url=http://www.hpc.ncep.noaa.gov/tropical/rain/chantal2001.html] Passing to the south of Jamaica, the storm produced light rainfall and gusty winds. [cite news|author=Brown, Jill|date=2001-08-19|title=Transcript: Wildfires Burn Across the West; Tropical Storm Chantal Rages in the Caribbean|publisher=CNN|accessdate=2008-06-23|url=http://transcripts.cnn.com/TRANSCRIPTS/0108/19/sm.04.html] The outer rainbands also affected the Cayman Islands. [cite news|author=West, James|date=2001-08-31|title=Chantal defied forecasts, hit Mexico with windy rain|publisher=USAToday.com|accessdate=2008-06-23|url=http://www.usatoday.com/weather/hurricane/2001/atlantic/chantal/wchantal-recap-full.htm]

In Belize, the tropical storm produced a wind gust of 71 miles per hour (115 km/h) in Caye Caulker, although stronger winds were possible in a convective band to the north. Moderate rainfall was reported across the country, peaking at 9.81 inches (249 mm) at Towerhill station. Along the coast, high waves damaged sea-walls and piers. Further inland, the combination of winds and flooding caused agriculture and infrastructure damage; overall damage in the country totaled $4 million (2001 USD), $4.87 million 2008 USD).

Tropical Storm Chantal also produced gusty winds in the Yucatán Peninsula, peaking at 62 miles per hour (100 km/h) in Chetumal, Quintana Roo. Dropping moderate to heavy rainfall along its path, a station near Chetumal reported a peak total of 20.03 inches (509 mm). The remnants of Chantal also produced rainfall along the Bay of Campeche coast. The passage of the storm resulted in downed trees and power lines, as well as damaged buildings. [cite news|work=The Washington Post|date=2001-08-21|title=World; In Brief|accessdate=2008-05-08] Heavy rainfall led to mudslides across Quintana Roo, leaving some areas isolated. [cite news|work=The London Independent|date=2001-08-25|title=Rain or Shine...|accessdate=2008-05-08] Initially, there were reports of two missing fishermen off the southeastern coast, [cite news|work=Los Angeles Times|date=2001-08-21|title=Tropical Storm Chantal Hits Mexico; Weather: Two fishermen are missing off country's southeastern coast. Heaviest rains and strongest winds are expected to arrive later|accessdate=2008-05-08|url=http://pqasb.pqarchiver.com/latimes/access/78357233.html?dids=78357233:78357233&FMT=ABS&FMTS=ABS:FT&date=Aug+21%2C+2001&author=&pub=Los+Angeles+Times&desc=THE+WORLD%3B+Tropical+Storm+Chantal+Hits+Mexico%3B+Weather%3A+Two+fishermen+are+missing+off+country's+southeastern+coast.+Heaviest+rains+and+strongest+winds+are+expected+to+arrive+later.&pqatl=google] although it was not later confirmed. Overall damage was minor.

Because Chantal did little damage, the name was not retired by the World Meteorological Organization. As a result, it was used again in 2007,cite web| author=NHC Hurricane Research Division|title=Atlantic Hurricane Best Track|publisher=NOAA|date=2008-02-06|accessdate=2008-05-22|url=http://www.aoml.noaa.gov/hrd/hurdat/easyhurdat_5107.html] and is on the list to be re-used in 2013. [cite web|author=National Hurricane Center|date=2008-05-13|title=Worldwide Tropical Cyclone Names|accessdate=2008-05-22|url=http://www.nhc.noaa.gov/aboutnames.shtml]

ee also

*Other tropical cyclones named Chantal

References