region, resulting in severe flooding in the states of Jalisco and Guanajuato. These rains damaged crops, roads, and over 12,000 houses. One fatality was reported. Hurricane Patricia The final storm of the 2003 season began as a tropical wave that crossed Central America on October 17. The incipient disturbance slowly organized as it moved west-northwest south a ridge, organizing into a tropical depression around 12:00 UTC on October 20 about south of Acapulco. Six hours later, it intensified into Tropical Storm Patricia while paralleling the Mexico coastline well offshore. As banding features increased in association with the cyclone, and as it developed an eye, Patricia became the season's final hurricane around 12:00 UTC on October 21. It peaked with winds of twelve hours later, despite predictions of a much stronger storm. On October 22, the cyclone encountered wind shear associated with an upper-level trough near Baja California, and its circulation quickly became displaced from associated thunderstorm activity. It fell below hurricane strength that day but fluctuated in intensity through October 25. Early that day, Patricia weakened to a tropical depression, and by 06:00 UTC on October 26, it degenerated to a remnant low. The low turned west and dissipated twelve hours later. Other systems On January 11, the JTWC began monitoring the disturbance that would eventually develop into Yanyan near the International Date Line. Storm names The following list was used to name storms that formed in the Northeast Pacific in 2003. Names that were not assigned are marked in gray as unused. No names were retired by the World Meteorological Organization, therefore this list was used again in the 2009 season. The same list was used for the 1997 season except for Patricia, which replaced Pauline. For storms that form in the Central Pacific Hurricane Center's area of responsibility (between 140°W and the International Date Line), names are used in a series of four rotating lists. Season effects The table of storms that formed in the 2003 Pacific hurricane season includes their duration, names, intensities, areas affected, damages, and death totals. Damage and deaths include totals while the storm was extratropical, a wave, or a low. See also Tropical cyclones in 2003 List of Pacific hurricanes Pacific hurricane season 2003 Atlantic hurricane season 2003 Pacific typhoon season 2003 North Indian Ocean cyclone season South-West Indian Ocean cyclone seasons: 2002–03, 2003–04 Australian region cyclone seasons: 2002–03, 2003–04 South Pacific cyclone