Due to the heavy snow fall this winter, cool spring temperatures, and frequent storms, the snowpack remains deep. As a result, the National Park Service will not be putting the Half Dome Cables in place for the Memorial Day weekend. It is also unlikely that they would be put up during the first week of June. Continued expected snow storms in the high country prevent the NPS from making an accurate prediction of the when the cables may be put in place. In 2010, which had less snow than 2011, the cables were not put in place until June 16.
Starting next week, the NPS will provide weekly conditions updates on the Half Dome Trail and cables along with any prediction for a possible opening date, when known. To read these updates go to:
http://www.nps.gov/yose/planyourvisit/halfdome.htm.