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Tropical Cyclone Report

Tropical Depression Six

19 - 21 July 2003

Miles B. Lawrence
National Hurricane Center
18 August 2003

Tropical Depression Six formed from a tropical wave that moved off the coast of Africa on 14 July. Moving westward at about 20 kt, enough organized convection developed to classify the system as a tropical depression by 19 July, at a location about 900 n mi east of the Lesser Antilles. The depression moved westward for two days and was approaching the Lesser Antilles on 21 July when data from a U.S. Air Force Reserve reconnaissance aircraft indicated that the system had no closed low-level circulation. The open tropical wave continued westward across the Carribean for a few more days. The northern part of the wave split off toward the northwest and developed into Tropical Depression Seven a few days later, while located east of Jacksonville, Florida.

Forecasts issued on 19 and 20 July brought the depression to hurricane intensity in three days. Watches and warnings were issued for several islands in the eastern Caribbean Sea as listed in Table 2. Nevertheless, the depression weakened to an open wave, bringing only a few showers across the islands.



Table 1: Best track data for Tropical Depression Six, 19-21 July 2003.
Date/Time
(UTC)
PositionPressure
(mb)
Wind Speed
(kt)
Stage
Lat.
(°N)
Lon.
(°W)
 19 / 1800 12.3 43.5 1010 30 tropical depression
 20 / 0000 12.5 45.2 1010 30 "
 20 / 0600 12.7 47.0 1011 30 "
 20 / 1200 12.9 48.8 1011 30 "
 20 / 1800 13.2 50.9 1012 30 "
 21 / 0000 13.5 53.0 1012 30 "
 21 / 0600 13.8 55.1 1013 30 "
 21 / 1200 14.0 57.4 1012 30 "
 21 / 1800     dissipated


Table 2: Watch and warning summary for Tropical Depression Six.
Date/TimeActionLocation
20/2100tropical storm watch issuedSt. Lucia and Dominca 
21/0300tropical storm warning issuedDominica 
21/0900tropical storm watch issuedPuerto Rico and U.S. Virgin Islands 
21/1800tropical storm warning discontinuedDominca 
21/1800tropical storm watch discontinuedSt. Lucia 
21/2100tropical storm watch discontinuedPuerto Rico andU.S. Virgin Islands 

Best track positions for Tropical Depression Six

Figure 1: Best track positions for Tropical Depression Six, 19-21 July 2003.



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Page last modified: Monday, 07-Feb-2005 16:38:06 UTC