Yosemite NP opened up ' minimal' access to the Valley on Saturday after a great effort to plow pathed footpaths and restore limited services. The only access into the valley is via Highway 140.
Conditions are described as 'Very snowy' with advise to wear waterproof boots and traction devices because of ice on plowed pathways. Hiking on snow covered trails is not recommended.

Check before travelling if you are planning to visit as there is a lot more snow to come through Tuesday and into Wednesday and a Winter storm watch alert has been issued.
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4
feet possible. Winds could gust as high as 60 mph.

* WHERE...The Sierra Nevada.

* WHEN...From late Monday night through Wednesday afternoon.

* IMPACTS...Travel could be very difficult to impossible. Strong
winds can could cause tree damage.
Dave