June BC

I went searching for persistent weak layers in the June area today. I found them. Throughout terrain in the area, there is variability in thickness and hardness of slabs over weak layers from within the new storm snow. See snowpack/snowpit for details of what I found. Overall, digging in the snow (+ some ECTs) confirmed my suspicions for stubborn to reactive weak layers and left me feeling confident in allowing for wide margins and sticking to lower angle terrain. I observed 1 small avalanche ATL near 11000', and viewed what looked like filled in crowns in ATL rocky terrain. I couldn't get a good enough look to confirm or deny this thought. 

While today was cold, some solar aspects have developed a thin surface MFcr. 

1 small whumph on a terrain specific feature NTL, E, 9400'. HS 35 cm, ~ 15 cm 4F slab over F DFpp/FC. Rocky area, generally shallow snowpack.

I probed and dug in N - E terrain, BTL/NTL (elevations 9000' - 10000' in this region). I found the following general structure, with various hardnesses and thicknesses for different layers depending on terrain specifics. 

• dry F - 1F New Snow (up to 80 cm) 
• variations of a rain crust (dependent on elevation) over moist to dry snow over dry FC crust combos 
• Up to 70 cm of dry F 2 - 6 mm FC to ground below new snow, some cupped/striated

I dug on a NE aspect just under 9700', BTL. Pit results showed stubborn to reactive instabilities. While it took some effort to get the layers to fail, when they did, they popped out easily, sliding as one cohesive slab. 

• ECTP22 33 cm down F PP over 1F slab over DFpp (thin layer of F decomposing fragments within storm snow)
• ECTP28 84 cm down 1F slab over facet crust combos over F FC
  • both ECT - cohesive slab jumped out @ me when failure occurred 

NTL small wind slab reactive underfoot, but feature dependent where I traveled. 

ATL NW - N - E terrain actively loading throughout the day.