Archives for: "November 2014"

Glaze-rime Ice Buildup Facing Creek

November 23rd, 2014
Here's a reed of some sort, with a glaze of clear rime on the side facing a creek. How did the clear ice get there, and what is the white ice on top of it? The fact that the clear ice is just on the side facing the creek indicates that the ice came from… more »

A Change in Habit

November 23rd, 2014
The two main growth modes of snow and hoar (i.e., ice growth from the vapor) are columnar and tabular. In columnar, the shape is long and thin, like a pencil or cluster of pencils (bound snugly with a rubber band). In tabular, the shape is plate-like or… more »

Smaller Hoar Growing on Larger Hoar

November 22nd, 2014
Cold air came down the interior, spilling through gaps in the Cascades, cooling the western side. In the Seattle area, we got our first frost on Nov. 11, but the days stayed cold. Areas in the shade never lost their hoar, so the hoar frost kept growing.… more »