An area of disturbed weather, associated with a tropical wave that moved into the eastern Pacific on 15 July, was first noted near 10N 119W on 20 July. The initial development was slow, with the system becoming Tropical Depression Four-E on 23 July (Table 1). Moving westward, the depression was close to tropical storm strength early on 24 July. The associated convection became disorganized as the cyclone crossed into the Central Pacific Hurricane Center (CPHC) area of responsibility later that day, and the depression dissipated early on 25 July.
Table 1. Best track, Tropical Depression Four-E, 23 -25 July 1999 Date/Time
(UTC)Position Pressure
(mb)Wind Speed
(kt)Stage Lat. (°N) Lon. (°W) 23/0000 13.5 130.7 1009 30 tropical depression 0600 13.7 132.1 1008 30 " 1200 13.8 133.4 1008 30 " 1800 13.8 134.8 1007 30 " 24/0000 13.9 136.2 1007 30 " 0600 14.0 137.9 1007 30 " 1200 14.1 139.6 1008 30 " 1800 14.2 141.5 1008 30 " 25/0000 14.4 143.7 1009 25 " 0600 dissipated 24/0000 13.9 136.2 1007 30 minimum pressure