Some organization of shower and thunderstorm activity initially took place, but dry air soon impinged upon the system and imparted weakening.

Development was initially fast-paced, as the depression acquired tropical storm-force winds within six hours of formation and hurricane-force by August 23.

Over the next several days, Marie progressively degraded to below hurricane strength as it moved into an increasingly hostile environment with cooler waters and a more stable atmosphere.

The remnant cyclone eventually lost a well defined center and dissipated on September 2 about 1,200 mi (1,950 km) northeast of Hawaii.

Although Marie's center remained well away from land throughout its entire existence, its large size brought increased surf to areas from Southwestern Mexico northward to southern California.

[4] A broad area of low pressure subsequently formed within the wave about halfway between Africa and the Cape Verde Islands.

[7] Interaction with a monsoon trough reinvigorated shower and thunderstorm activity on August 11 across a large area southwest of the Cape Verde Islands,[8] but the surface low had dissipated by this time.

[2] Beginning on August 17, the NHC anticipated that a low-pressure area would form within five days to the south of the Gulf of Tehuantepec in the East Pacific, with a 30% chance of tropical cyclogenesis.

[16] After an increase in rainbands and outflow around the well-defined center,[17] the NHC classified the system as Tropical Depression Thirteen-E early on August 22 about 370 mi (595 km) south-southeast of Acapulco, Mexico.

A strong ridge over the southern United States, later expanding into northern Mexico, steered the system on a west-northwest course throughout its existence as a tropical cyclone.

[19] The storm very quickly organized, developing a central dense overcast consisting of intense convection;[20] this was aided by warm water temperatures and low wind shear.

[2] The NHC estimated peak sustained winds of 160 mph (260 km/h), based on a Dvorak T-number of 7.0 provided by TAFB and SAB.

They also estimated Marie's minimum barometric pressure at 918 mbar (hPa; 27.11 inHg), ranking as the seventh-strongest in the Pacific east of the International Date Line since records began in 1949.

[24] At its peak, Marie was a large hurricane with tropical storm-force winds covering an area 575 mi (925 km) across.

[2][25] Shortly after Marie attained peak intensity, the convection weakened due to an eyewall replacement cycle, in which an outer eye formed.

[29] A strengthening ridge near California caused the storm to accelerate more to the west-northwest, into an area of cooler waters and dry air.

[40] Off the coast of Los Cabos in Baja California Sur, large swells capsized a fishing boat with seven people aboard on August 25.

Landslides blocked several roads near Los Cabos while gusty winds downed trees and power lines.

Forecasters at the local National Weather Service office warned residents in Los Angeles and Ventura counties could "potentially see the largest surf in recent years generated by a hurricane.

[44] The combination of large swells, high tide, and powerful south-to-north longshore currents impeded by the bight formed by the Palos Verdes Peninsula resulted in significant coastal flooding in Seal Beach.

A four-block area of oceanfront property was affected; several apartments were left with inches of water on the ground floor.

[45] Severe beach erosion resulted in the loss of 10,000–20,000 yd3 (7,600–15,200 m3) of sand; a state of emergency was declared to assist with restoration efforts.

[53] On September 18 Connolly-Pacific Co. was contracted for $5m to repair the twelve worst affected areas of the breakwaters and construction began on October 8.