These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean.

[1] All tropical cyclones this season formed in the eastern north Pacific Ocean, often off the coast of Mexico.

Most systems traveled generally westward or northwestward, and two reached as far as the waters south of the Hawaiian Islands.

Several other much weaker tropical cyclones came close to, or made landfall on, the Pacific coast of Mexico.

Another was Hurricane Irah, which downed power and communication lines in parts of the Baja California Peninsula.

[5] This season, all advisories and tropical cyclone data were released and collected by two agencies, the Eastern Pacific Hurricane Center in Redwood City, California,[6] and the Central Pacific Hurricane Center in Honolulu, Hawaii,[7] both of which were coextensive with the National Weather Service Forecast Offices in their respective cities.

[2] Ava's minimum central pressure was 915 millibars, and its maximum sustained winds reached 140 knots (260 km/h).

Ava reached Category 5 intensity on June 7, the earliest date in an east Pacific season that a hurricane has done so.

[10] During these flights, radars and other devices were tested, and wind speed, pressure, and wave heights were measured.

A nearly stationary disturbance in the Intertropical Convergence Zone spent three days organizing and finally developed into a tropical depression on June 22.

[2] After intensifying into a tropical storm, Bernice made landfall on June 23 at a location roughly 50 mi (80 km) southwest of Zihuatanejo.

Claudia headed northwesterly and then northwards and made landfall on June 28 approximately 30 mi (50 km) east of Acapulco.

[2] On July 18, a tropical storm formed from a disturbance in the Intertropical Convergence Zone and was named Doreen.

[2] Doreen briefly reached Category 4 strength on July 21 with a relatively high central pressure of 972 mb (28.7 inHg).

Doreen weakened to a tropical storm as it entered the Central Pacific Hurricane Center's area of responsibility on July 25.

[3][12] Doreen remains the eighth-longest lasting Pacific tropical cyclone, tied with two other storms.

The most serious incident involved a Greek ship called Cornelia which lost its rudder in 35 ft (10 m) waves, but managed to escape and continue on its way to Panama.

[2][7] A depression formed July 21 from squalls in the Gulf of Tehuantepec and headed west-northwest and strengthened into a tropical storm.

Emily's wind field was large enough to bring gales areas 300 mi (480 km) east of the hurricane from July 22 to 24.

The storm made a close approach to the Mexican coast as a depression, but did not make landfall.

After moving northwest for a bit, it became a tropical storm and headed almost due north towards Mexico.

[2] Tropical Storm Heather caused no deaths or damage to any location in the coastal area of the Gulf of Tehuantepec.

Irah took a northwesterly path and reached Category 2 strength on the Saffir-Simpson Hurricane Scale, and then dropped back down to a 1 as it recurved.

[2] Irah blew over some power and communication lines during its passage over the southern tip of the Baja California Peninsula.

[2] Heavy rain fell over parts of Mexico, with the highest total being 10.24 in (260 mm) at Sierra de la Laguna.

[2] There was some concern that the hurricane could disrupt splashdown procedures for astronauts at the end of Skylab 3;[15] However, the return to Earth was not seriously affected.

It took a northeasterly path, rotating around the southern periphery of Hurricane Irah as part of a Fujiwhara interaction.

It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals.