yosemite to flood??

Impacts - E19 Information
6.5 Feet River is closed to rafters and floatation.
9.0 Feet Chapel Meadow (south side of river) and Cooks Meadow (north side of river) begins to experience overflow.
9.5 Feet Portion of Lower Pines Campground becomes flooded. Limited site-specific evacuations begin at Housekeeping Camp located along the south-facing bank of the Merced River. (Upstream from Sentinel Bridge and downstream from Stoneman Bridge)
10.0 Feet Western portion of North Pines Campground, located at the east end of Yosemite Valley between the confluence of the Merced River and Tenaya Creek, begins to flood. Water rises to the base of the swinging bridge downstream from Chapel Meadow.
10.5 Feet Water tops the swinging bridge downstream from Chapel Meadow. Overflow from Woski Pond floods access road (Northside Drive) leading out of the west entrance of the park.
11.5 Feet Sewage pumping relay station at North Pines Campground becomes flooded.
12.5 Feet Northside Drive and Southside Drive, which are the main roads in Yosemite Valley, become flooded and are closed to traffic.
23.45 Feet Flood of record (01/02/1997). $178 Million damage to Yosemite Valley.

The river that flows through fabled Yosemite Valley is expected to overflow its banks during this weekend’s storms, rising even higher than it did during the devastating flood of 1997.
Forecasters with the National Oceanic and Atmospheric Administration predicted that the Merced River would surge to a level of 23.7 feet, about a half a foot higher than it did 20 years ago when the river flooded a valley hotel and other facilities, causing an estimated $176 million damage.

So what needs trundling?