| Recent Avalanches? | No |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observation: Chugach State Park
Location: Arctic Valley
Started tour at 1300 up Arctic Valley bottom to point just east of Avalanche Gully at 3445ft.
Obvious signs of instability
Observer Comments
Abundant whumping to 40ft out from skis in valley bottom.
Weather
Snowing with visibility at ΒΌ mile at start of tour. Snow accumulating at 1cm/hr at start which increased to 2.5cm/hour by end of tour at 1600. At 1500 was 30deg with winds from 170@5-10mph.
Snow surface
Snow surface variable from loose snow at lower elevations to wind board at higher elevations.
Snowpack
Did quick pit on NW aspect on 18deg slope 0.1 miles NE of Avalanche Gully. TD = 70cm. Top down: 70-68=F new snow. 68-55 P 0.5mm rounds. 55-40 = 4F 0.5 rounds. 40-35 = P 1.0 rounds. 35-20 = F 2.0 rounding facets. 20-0 = 1F 4.0mm rounding facets.
Tests: Got STV at 55cm. STE at 15 cm. CT14@20cm. Got ECTPV @20cm (pic).
A skier triggered avalanche occurred near the head of Avalanche Gully on 11/9 approx. 0.1 mi SW of this pit site. See anonymous observation for that date on CNFAIC site.
Quick pit near Avalanche Gully