Observations

Huntington Ravine

February 17, 2021 at 12:00 PM
Name: Ryan Lewthwaite| MWAC
Location: Huntington Ravine

On February 16th a warm and wet storm out of the Gulf of Mexico inundated the Presidential Range with mixed precipitation. Around 1:00PM near 4000′ in elevation on the Auto Road the temperature was 38.1 degrees(F). During this time a mixture of sleet and rain fell in the Huntington and Tuckerman Ravines. This rain on snow event saturated the surface of the snowpack and allowed for natural Loose Wet avalanche activity. Southerly winds reached a peak gust of 109mph, redistributing any dry snow to new locations lower on the fetch. The avalanches that ensued entrained all the surface forms of precipitation into channeling runnels that poured slush down steep and confining terrain. Later in the day temperatures dropped and now a Pencil to Knife hard crust remains on the surface. Small and isolated pockets of loose sugary snow, likely refrozen sleet, has found itself redeposited on leeward areas of “The Fan” and lower in the trees. The firm crust has a lustrous appearance and requires hard boots and crampons for travel across. Zoom-in on photographs for better definition of snow characteristics.