Surface hoar with new snow coming

Took a meander through the Fat Dog trail, stayed below treeline. Clear skies last night with below freezing temps caused surface hoar to form over the crust in this area. Not much sun today and calm winds so it may very well be staying long enough to be buried in some of the snow coming in the next 48hrs in "treeline" and "below treeline". Amounts dont look like big snow totals but something to beware of as we start seeing 20cms and more cover this layer. Forecast was for calm conditions near alpine as well over the last 24hrs so I would say it is a safe bet that there was some surface hoar development in transition zones from treeline to alpine.