In early June, Tropical Storm Barbara moved ashore just northwest of the Mexico–Guatemala border, causing $55 million (2007 USD)[nb 1] in damage and 4 deaths.

In late July, Cosme passed south of the island of Hawaii as a weakening tropical depression; light rain and increased surf resulted.

On May 20, the disturbance crossed Central America and emerged into the eastern Pacific Ocean, where convection—shower and thunderstorm activity—gradually began to increase over the well-defined center; this led to the formation of a tropical depression by 0000 UTC on May 27, approximately 345 mi (555 km) south of the southern tip of Baja California.

After emerging into the eastern Pacific on May 25, the system acquired enough organization to be considered a tropical depression at 1800 UTC on May 29, about 115 mi (185 km) south-southeast of Puerto Escondido, Oaxaca.

[12] Within an environment of weak steering currents, the storm became better organized as evidenced by an improving satellite appearance, with the formation of a curved band in the southeast quadrant.

After re-intensifying into a tropical storm for a second time six hours later, Barbara attained its peak intensity with winds of 50 mph (80 km/h) and a minimum barometric pressure of 1000 mbar (1000 hPa; 30 inHg) at 1800 UTC.

[19] Following satellite evidence of a well-defined circulation and organized convective activity,[20] the National Hurricane Center upgraded the disturbance to a tropical depression at 1200 UTC on June 11.

After attaining winds of 35 mph (56 km/h) and a minimum barometric pressure of 1004 mbar (1004 hPa; 29.6 inHg), the depression began to traverse cooler waters and much more stable air.

[21] The low-level circulation became ill-defined and exposed,[22] leading to degeneration to a remnant low at 0600 UTC on July 11 about 910 mi (1,460 km) west-southwest of Cabo San Lucas, Mexico.

[24] Turning west-northwest on July 15, the depression entered cooler waters and an increasingly stable airmass, causing the system to degenerate into a remnant low by 0000 UTC the following day.

Although wind shear was light, ocean temperatures were marginal for intensification, and the depression intensified into Tropical Storm Cosme on July 15, while moving generally northwestward.

[25] Gradually weakening, Tropical Depression Cosme passed south of the Hawaiian Islands on July 20 with a minimum central pressure of 1010 mbar.

[25] Rain bands produced 6.94 in (176 mm) of rainfall in Hakalau,[35] causing small stream and drainage ditch flooding, as well as ponding on roadways in portions of Hilo, Puna, and Kau.

Tracking west-northwest, the system acquired enough organization to be upgraded to a tropical depression at 0000 UTC on July 22, while positioned 460 mi (740 km) south of Manzanillo, Mexico.

A mid-level ridge over Mexico caused the system to turn northwest as shear began to decrease; at 0000 UTC on July 24, the depression was upgraded to Tropical Storm Dalila.

After attaining its peak intensity with winds of 60 mph (97 km/h) and a minimum barometric pressure of 995 mbar (995 hPa; 29.4 inHg) a day later, the storm tracked over progressively cool waters, causing it to weaken.

Tracking westward, intermittent bursts of deep convection occurred as it crossed the Leeward Islands on July 22, but associated activity remained disorganized.

On July 28, a broad area of low pressure formed along the wave axis; easterly shear, however, prevented thunderstorms from developing over the center.

Continuing westward and crossing into the central Pacific basin, the system began a period of rapid intensification that brought it to its peak intensity with winds of 140 mph (230 km/h) and a minimum barometric pressure of 949 mbar (949 hPa; 28.0 inHg) at 0000 UTC on September 12, while positioned roughly 980 mi (1,580 km) east-southeast of the Big Island.

[48] A tropical storm warning was subsequently issued for the same location,[49] The Federal Emergency Management Agency (FEMA) sent 20 transportation, public works, and health experts to the region.

Characterized with abundant deep convection, the wave remained organization until it interacted with an upper-level trough across the eastern Caribbean Sea a few days later.

[53] Though the circulation remained positioned on the northeast side of most thunderstorm activity, satellite intensity estimates supported tropical storm strength and it was upgraded to such accordingly.

Moving west-northwest around a ridge positioned over inland Mexico, the center passed narrowly offshore after producing squally weather along the coastline.

The system moved westward while continuing to intensify, becoming a Category 1 hurricane at 0600 UTC on September 4 and subsequently attaining its peak intensity with winds of 85 mph (137 km/h) and a minimum barometric pressure of 972 mbar (972 hPa; 28.7 inHg) six hours later.

An approaching upper-level trough caused Henriette to turn northwest later that day, moving it ashore near San José del Cabo, Mexico at 2100 UTC as a minimal hurricane.

[56] A tropical wave moved off the western coast of Africa on September 1 and continued westward until reaching the eastern Pacific fifteen days later.

With an area of deep convection near the center,[65] the hurricane attained its peak intensity with winds of 80 mph (130 km/h) and a minimum barometric pressure of 984 mbar (984 hPa; 29.1 inHg) at 0000 UTC on September 21.

Westerly flow associated with a large upper-level low began to undercut the outflow of Ivo, and it weakened to a tropical storm by the afternoon hours.

Following visible satellite trends, the National Hurricane Center deemed the disturbance organized enough to be declared a tropical depression at 0600 UTC on September 19, while located about 1,200 mi (1,900 km) west-southwest of the southern tip of Baja California.

Turning northwest as a result of an upper-level trough, the system attained its peak with winds of 60 mph (97 km/h) and a minimum barometric pressure of 997 mbar (997 hPa; 29.4 inHg) at 1200 UTC on September 30.