Tropical Storm Douglas (2008)

Tropical Storm Douglas was the fourth named storm of the 2008 Pacific hurricane season. Douglas developed out of a tropical wave that formed off the African coast on June 19 and traversed the Atlantic Ocean. On June 27, the wave crossed Central America and entered the Pacific Ocean. On July 1, the storm developed into Tropical Depression Four-E while located 245 nmi southwest of Manzanillo, Mexico as it traveled to the northwest. Despite being dislocated from most of the convection by strong wind shear, the depression gradually became better organized and on the afternoon July 2, the depression was upgraded to Tropical Storm Douglas. Upon the upgrade, Douglas reached its peak intensity of 40 mph (65 km) and minimum pressure of 1003 mbar (hPa; 29.63 inHg). Douglas weakened to a tropical depression overnight on July 3. The depression became devoid of convection shortly after and was further downgraded to a remnant low-pressure area on the morning of July 4 as it turned towards the west. The remnant low continued to weaken and completely dissipated on July 6.

Meteorological history
A tropical wave exited the coast of Africa on June 19, which failed to organize until entering the Pacific Ocean on June 27. On June 28, deep convection and a broad circulation developed along the wave to the south of the Gulf of Tehuantepec. After the circulation organized further while moving to the northwest, the system developed into a tropical depression early on July 1, about 245 nmi southwest of Manzanillo, Mexico. Due to northeasterly wind shear, the elongated center was displaced to the north of the convection. Despite the shear, rainbands developed to the south and west of the storm. The depression continued to become better organized and on July 2, the National Hurricane Center (NHC) upgraded it to Tropical Storm Douglas.

Upon being upgraded to a tropical storm, the circulation remained located to the northeast of the convection, which gradually weakened over time. Increased shear and cooler waters caused Douglas to deteriorate, and on July 3 it weakened to a tropical depression after the deep convection dissipated. Douglas degenerated into a remnant low early on the morning of July 4. The remnant low moved towards the west for two days before dissipating over open waters.

Impact
On July 2, a blue alert was declared for Socorro Island, Colima, Jalisco, Nayarit, and Baja California Sur. Due to the proximity to land, outer rain bands associated with Douglas produced tropical storm force winds in Manzanillo, Mexico. Minor flood damage was reported along the coastline in Colima, Jalisco, and Nayarit. On July 2, a ship located to the southwest of the center reported a sustained wind of 30 mph (50 km/h). Moisture associated with Douglas produced light rain over parts of Baja California Sur. Thunderstorms developed near Todos los Santos, producing isolated heavy rain.