Hurricane Otis' Category 5 'nightmare scenario' knocks out all communications in Acapulco, Mexico | CNN
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Hurricane Otis knocked out all communications and unleashed a “nightmare scenario” in Acapulco in southern Mexico on Wednesday morning. Tracking over the incredibly warm ocean water near the coast, the storm rapidly intensified just before landfall and gave officials and residents little time to prepare.

From CNN link:

Hurricane Otis made landfall near Acapulco, Mexico, early Wednesday as a Category 5 storm, delivering what forecasters warned could be a “nightmare scenario” for Mexico’s southern coast as it threatens to cause catastrophic damage with destructive winds, heavy rainfall and storm surge.

Otis’ center slammed into Mexico’s coast around 12:25 a.m. local time with sustained winds of 165 mph, the National Hurricane Center said.

and this is the latest advisory from NOAA https://www.nhc.noaa.gov/text/refresh/MIATCPEP3+shtml/250845.shtml

Apparently it built from a tropical storm to a Cat 5 in about 24 hours.