Climbed Thomson 2 weeks ago. Katwalk was clear. Ridge Lake was just starting to thaw. Trail from the lake to Bumblebee Pass was easy walking on snow. Hike up notch to Bumblebee Pass was snow-free. Snow on other side of Bumblebee Pass all the way down to talus field on the other side. If you are planning on camping I recommend staying in the basin. Good water, tremendous views, and a shortee hike out.