Park spokesman Scott Gediman said a series of falling rocks, some as large as microwave ovens, tumbled at least 100 feet from the base of the cliff and into the valet parking lot, where several cars were damaged. No injuries were reported.
Dust from the avalanche obscured views of Half Dome.
Guests of the historic 125-room hotel were directed to the south lawn behind the hotel while geologists checked the stability and assessed the likelihood that more rocks would fall.
In October park officials permanently closed one-third of Curry Village because of rockfall danger.