We did a quick tour from Truckee, to Yuba Pass / Gold Lakes Basin area. Along Hwy 89 north of Truckee there's some nice aspen, willow/larch/birch color. Hwy 49 between Sierra City and Bassets was looking prime this afternoon. Other aspens were still green.
Overall I would say we're at 40-50% As dry as it is, the shift could happen pretty fast.
That's specific to the Sierra north of Hwy 80, not the southern Sierra.