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1Tropical Cyclone Report


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1Table 6. Watch and warning summary for Hurricane Dean, 13-23 August 2007.




Date/Time (UTC)

Action

Location

16 / 0300

Tropical Storm Watch issued

St. Maarten

16 / 0300

Hurricane Watch issued

St. Lucia

16 / 0300

Hurricane Watch issued

Martinique/Guadeloupe

16 / 0300

Hurricane Watch issued

Saba/St. Eustatius

16 / 0900

Hurricane Watch changed to Hurricane Warning

St. Lucia

16 / 0900

Hurricane Warning issued

Dominica

16 / 1200

Tropical Storm Watch issued

St. Vincent

16 / 1200

Tropical Storm Watch issued

Montserrat/Antigua/St. Kitts/Nevis/Barbuda

16 / 1200

Tropical Storm Watch issued

Grenada

16 / 1200

Tropical Storm Warning issued

Barbados

16 / 1500

Tropical Storm Watch changed to Tropical Storm Warning

Montserrat/Antigua/St. Kitts/Nevis/Barbuda

16 / 1500

Tropical Storm Watch changed to Tropical Storm Warning

Grenada

16 / 1500

Tropical Storm Watch discontinued

All

16 / 1500

Tropical Storm Warning discontinued

Barbados

16 / 1500

Tropical Storm Warning issued

Barbados/St. Vincent/Grenadines

16 / 1500

Tropical Storm Warning issued

St. Maarten/Saba/St. Eustatius

16 / 1500

Hurricane Watch discontinued

Saba/St. Eustatius

16 / 2100

Hurricane Watch changed to Hurricane Warning

Martinique/Guadeloupe

16 / 2100

Tropical Storm Watch issued

Puerto Rico to U. S. Virgin Islands

17 / 0000

Tropical Storm Warning issued

Anguilla

17 / 0300

Tropical Storm Watch changed to Tropical Storm Warning

Puerto Rico to U. S. Virgin Islands

17 / 0300

Tropical Storm Watch issued

Cabo Engano to Haiti/Dominican Republic border

17 / 0600

Tropical Storm Watch modified to

Cabo Engano to Port-Au-Prince

17 / 0600

Tropical Storm Warning issued

British Virgin Islands

17 / 1500

Tropical Storm Watch changed to Tropical Storm Warning

Cabo Engano to Port-Au-Prince

17 / 1500

Hurricane Warning changed to Tropical Storm Warning

St. Lucia

17 / 1500

Tropical Storm Warning discontinued

Barbados/St. Vincent/Grenadines

17 / 1500

Tropical Storm Warning discontinued

Grenada

17 / 1500

Hurricane Watch issued

Cabo Beata to Port-Au-Prince

17 / 2100

Tropical Storm Watch issued

Camaguey to Guantanamo

17 / 2100

Tropical Storm Warning discontinued

St. Lucia

17 / 2100

Tropical Storm Warning discontinued

St. Maarten/Saba/St. Eustatius

17 / 2100

Hurricane Watch issued

Jamaica

17 / 2100

Hurricane Warning discontinued

Dominica

17 / 2100

Hurricane Warning discontinued

Martinique

18 / 0000

Tropical Storm Warning modified to

Cabo Engano to Barahona

18 / 0000

Hurricane Watch modified to

S Border Haiti/Dominican Republic to Port-Au-Prince

18 / 0000

Hurricane Warning issued

Barahona to S Border Haiti/Dominican Republic

18 / 0300

Tropical Storm Warning discontinued

Montserrat/Antigua/St. Kitts/Nevis/Barbuda

18 / 0300

Tropical Storm Warning discontinued

Anguilla

18 / 0300

Tropical Storm Warning modified to

Port-Au-Prince to N Border Haiti/Dominican Republic

18 / 0300

Hurricane Watch discontinued

S Border Haiti/Dominican Republic to Port-Au-Prince

18 / 0300

Hurricane Warning discontinued

Guadeloupe

18 / 0300

Hurricane Warning modified to

Barahona to Port-Au-Prince

18 / 1500

Hurricane Watch changed to Hurricane Warning

Jamaica

18 / 1500

Tropical Storm Warning discontinued

Puerto Rico to U. S. Virgin Islands

18 / 1500

Tropical Storm Warning discontinued

British Virgin Islands

18 / 1500

Hurricane Watch issued

Cayman Islands

18 / 1800

Tropical Storm Watch changed to Tropical Storm Warning

Camaguey to Guantanamo

19 / 0300

Hurricane Watch changed to Hurricane Warning

Cayman Islands

19 / 0300

Tropical Storm Watch issued

Ciego de Avila to Isla de la Juventud

19 / 0600

Tropical Storm Warning discontinued

Cabo Engano to Barahona

19 / 0600

Tropical Storm Warning issued

Cabo Caucedo to Haiti/Dominican Republic Border

19 / 0600

Hurricane Warning modified to

S Border Haiti/Dominican Republic to Port-Au-Prince

19 / 0900

Tropical Storm Warning discontinued

Cabo Caucedo to Haiti/Dominican Republic Border

19 / 1200

Hurricane Warning modified to

S Border Haiti/Dominican Republic to Port-Au-Prince

19 / 1500

Tropical Storm Watch issued

Pinar del Rio to La Habana

19 / 1500

Hurricane Watch issued

Chetumal to San Felipe

19 / 1500

Hurricane Warning modified to

S Border Haiti/Dominican Republic to Port-Au-Prince

19 / 2100

Hurricane Warning changed to Tropical Storm Warning

S Border Haiti/Dominican Republic to Port-Au-Prince

19 / 2100

Tropical Storm Watch issued

Dangriega to Belize/Mexico border

19 / 2100

Tropical Storm Warning modified to

S Border Haiti/Dominican Republic to Port-Au-Prince

20 / 0000

Tropical Storm Watch discontinued

Dangriega to Belize/Mexico border

20 / 0000

Tropical Storm Watch issued

Belize City to Belize/Guatemala border

20 / 0000

Hurricane Watch modified to

Belize City to San Felipe

20 / 0300

Hurricane Watch discontinued

Belize City to San Felipe

20 / 0300

Hurricane Watch issued

Cancun to Ciudad del Carmen

20 / 0300

Hurricane Warning issued

Belize City to Cancun

20 / 0600

Tropical Storm Warning discontinued

S Border Haiti/Dominican Republic to Port-Au-Prince

20 / 0900

Tropical Storm Watch changed to Tropical Storm Warning

Belize City to Belize/Guatemala border

20 / 1500

Hurricane Warning changed to Tropical Storm Warning

Jamaica

20 / 1500

Tropical Storm Warning discontinued

Belize City to Belize/Guatemala border

20 / 1500

Tropical Storm Warning issued

Cancun to Progresso

20 / 1500

Hurricane Watch discontinued

All

20 / 1500

Hurricane Warning modified to

Belize/Guatemala border to Cancun

20 / 1500

Hurricane Warning issued

Progresso to Ciudad del Carmen

20 / 1800

Tropical Storm Warning discontinued

Jamaica

20 / 2100

Tropical Storm Watch discontinued

Ciego de Avila to Isla de la Juventud

20 / 2100

Tropical Storm Watch issued

Isle of Youth

20 / 2100

Tropical Storm Watch issued

Ciudad del Carmen to Veracruz

20 / 2100

Tropical Storm Warning discontinued

Camaguey to Guantanamo

20 / 2100

Hurricane Warning discontinued

Cayman Islands

21 / 0300

Tropical Storm Watch discontinued

Ciudad del Carmen to Veracruz

21 / 0300

Tropical Storm Warning issued

Chilitepec to Veracruz

21 / 0300

Hurricane Watch issued

Chilitepec to Tampico

21 / 0300

Hurricane Warning modified to

Progresso to Chilitepec

21 / 0900

Tropical Storm Warning discontinued

Chilitepec to Veracruz

21 / 0900

Hurricane Watch modified to

Veracruz to Tampico

21 / 0900

Hurricane Warning modified to

Progresso to Veracruz

21 / 1500

Tropical Storm Watch discontinued

All

21 / 1500

Tropical Storm Warning issued

Belize/Mexico border to Belize/Guatemala border

21 / 1500

Tropical Storm Warning issued

Tampico to La Pesca

21 / 1500

Hurricane Watch discontinued

All

21 / 1500

Hurricane Warning modified to

Belize/Mexico border to Cancun

21 / 1500

Hurricane Warning modified to

Progresso to Tampico

21 / 1800

Tropical Storm Warning discontinued

Cancun to Progresso

21 / 1800

Tropical Storm Warning discontinued

Belize/Mexico border to Belize/Guatemala border

21 / 1800

Hurricane Warning discontinued

Belize/Mexico border to Cancun

22 / 0300

Tropical Storm Warning modified to

Tampico to Bahia Algodones

22 / 0300

Hurricane Warning modified to

Campeche to Tampico

22 / 0900

Tropical Storm Warning modified to

La Cruz to Bahia Algodones

22 / 0900

Hurricane Warning modified to

Campeche to La Cruz

22 / 1500

Hurricane Warning modified to

Coatzacoalcos to La Cruz

22 / 2100

Tropical Storm Warning modified to

La Cruz to Palma Sola

22 / 2100

Hurricane Warning discontinued

All

23 / 0000

Tropical Storm Warning discontinued

All

1Figure 1. Best track positions for Hurricane Dean, 13-23 August 2007.



1Figure 2. Selected wind observations and best track maximum sustained surface wind speed curve for Hurricane Dean, 13-23 August 2007. Aircraft observations have been adjusted for elevation using 90%, 80%, and 80% reduction factors for observations from 700 mb, 850 mb, and 1500 ft, respectively. Dropwindsonde observations include actual 10 m winds (sfc), as well as surface estimates derived from the mean wind over the lowest 150 m of the wind sounding (LLM), and from the sounding boundary layer mean (MBL). Dashed vertical lines correspond to 0000 UTC. Solid vertical lines indicate times of landfall.



1Figure 3. Selected pressure observations and best track minimum central pressure curve for Hurricane Dean, 13-23 August 2007. Dashed vertical lines correspond to 0000 UTC. Solid vertical lines indicate times of landfall.



1Figure 4. 0945 UTC 17 August radar image of Hurricane Dean passing between Martinique (top) and St. Lucia, from the Meteo-France radar at Martinique (image courtesy , Meteo-France).


1Figure 5. Microwave images of Hurricane Dean at 1131 UTC 18 August (left) and 1336 UTC 19 August (right). In the first image, Dean has an inner 25 n mi diameter eyewall that is just beginning to erode; the intensity at this time is 145 kt. Roughly 24 h later, the inner eyewall has almost completely disappeared, with the predominant eyewall now 55 n mi in diameter; over this interval the intensity decreased to 125 kt. (Images obtained from NRL Monterey Tropical Cyclone Homepage archive, accessible from http://www.nrlmry.navy.mil/tc_pages/tc_home.html)

1Figure 6. Sequence of official track forecasts for Hurricane Dean, 13-23 August 2007. The actual track of the cyclone is given by the white tropical cyclone symbols.





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