The NWS said on Twitter the Merced River through Yosemite "will stair-step upward through the week as snow melts during this week's heat wave." Much of the valley from Highway 120 is closed, due ...

Although Yosemite Valley is expected to be open, rafting, swimming and picnicking in areas along the river could be unavailable until July, a social post from the National Park said May 5.

The Merced River at Pohono Bridge may approach 12.5 feet on Friday. At this point, Northside Drive and Southside Drive would begin to flood and are closed to the public.