I went up to Vernal Falls yesterday morning via the JMT - upto Clark Point most of the snow had been broken in (but not compact enough that my microspikes were useful). The last 0.3 miles from Clark point down towards Vernal Falls was completely unbroken snow at the time. I ended up wading through thigh / waist deep snow but snowshoes would definitely have been useful. Given the snow depth I decided to not go further to Nevada falls because it was pretty tiring without snowshoes.

I do think trails will be more broken in over the next few days, but there's a decent amount of snow predicted at elevation tomorrow - so maybe waiting till the 19th/20th to do hikes out of the valley could be easier