Earth Changes
It touched down near the popular Acapulco resort just after midnight on Wednesday (06:25 GMT), the National Hurricane Center (NHC) said.
Authorities have warned of a life-threatening storm surge and the possibility of landslides as heavy rain pelts the area.
The storm has already begun to weaken as it moves inland.

An aerial view of the damage caused by Cyclone Lola at Ranwadi School on Pentecost Island.
In late February and early March, cyclones Judy and Kevin caused widespread damage, plunging parts of the Pacific island nation into a state of emergency.
Vanuatu's government estimated the damage from both super storms at just under six billion vatu (NZ$86m).
"The country was just getting back on its feet after the earlier twin cyclones, and now with Lola, we expect the damage to be quite extensive and destructive because of its strength," Disaster Management Minister Ralph Regenvanu said.
A Ministry of Rural Development and Local Government (MoRDLG) told Newsday no major incidents were reported to the disaster management units of respective regional corporations during yesterday's downpour. However, Newsday's sub-editor, Warren La Platte and his roommate were flooded at their Beaulieu, Trincity dwelling.
For La Platte, it was the first time having his home flooded. He said the rains began around 1.30 pm and, within half an hour, water started entering the apartment from the inundated street. He averages there was around five inches of water inside the house. He said damages are still being assessed.
Mt Hood Meadows and Timberline Lodge have received around a foot of snow in the last 24 hours and some eager souls have hiked out there to get the first freshies of the season, including videographer Pete Alport. Check out his incredible footage below from his first turns of the season in Oregon.
Residents woke up to swirling snow, the sound of shovels on sidewalks and snowplows on pavement just days after temperatures rose into the lower 80s. Trees with orange leaves and Halloween decorations were weighed down with snow.
The National Weather Service warned of hazardous travel on snowy mountain passes and ice on some highways when snow initially melts and then freezes as road temperatures drop.
Comment: Update October 27
Krtv.com reports:
The first big snowstorm of the season was a good one! Most locations in the state at least a few inches of snow, and a few locations saw up to two feet. The snow began falling late Tuesday and continued throughout Wednesday and into Thursday.
Most of the snow accumulation is now done with, but roads are going to continue to be icy/snow-covered for the next couple of days, so please use extreme caution when driving and give yourself some extra time to get to where you need to go.
Abu Dhabi Police too sent out an alert to residents - particularly motorists. As roads fill up with water, motorists are urged to exercise caution while driving. They must follow the changing speed limits which are displayed on electronic sign boards.

Floods in Al Mahrah Governorate, Yemen, October 2023 following heavy rain from Tropical Cyclone Tej.
Tropical Cyclone Tej made landfall along the coast between the coastal city of Al Ghaydah, capital of Al Mahrah Governorate in south-eastern Yemen, and Salalah, capital city of Oman's Dhofar Governorate.
Yemen Meteorological Services reported 406 mm of rain fell at Al Ghaydah Airport in the space of a few hours.
The Yemen Red Crescent Society said Cyclone Tej caused widespread destruction across Al Mahrah Governorate. Particularly badly affected are the districts of Al Ghaydah and Haswayn.

Badwater Basin is located 282ft below sea level, the lowest elevation in North America.
The park reopened last week after being shuttered in August, when a record-breaking tropical storm unleashed a year's worth of rain in a single day.
Dramatic images emerging from the park show arid dunes now dotted with lakes.
"Some spectacular things happened in Death Valley following the floods we received from remnants of Hurricane Hilary back in August," the park wrote in an Instagram post on Sunday.
"Ephemeral lakes popped up around the park, which is both pretty rare and amazing!" they added. "Lakes in the sand dunes wasn't on our 2023 bingo card."
Storm Bernard battered Southern Spain, causing fatalities, several injuries, and around 2,000 incidents of damage, the Andalusia region's emergency services said on Monday.
The atypical storm, which brought strong winds and heavy rains, reached its peak of destruction late Sunday night and early Monday morning.
One of the men confirmed dead was driving in the Huelva province when a landslide caused his car to flip off the road. Authorities suspect another man died in the city of Cordoba after being struck by sheet metal that the wind ripped off a building.
The Met Office issued a fresh warning for "heavy rain" which it said could lead to further flooding in the East Midlands, including Nottinghamshire and Lincolnshire, as well as much of Yorkshire, including Sheffield, Leeds and York, and Humberside.
Comment: Update October 26
Al Jazeera reports: Update October 29
Associated Press reports :