Strong Cold wind off the lake at 0845, from the parking lot in, affecting all trail sections near the lake shore. Thunder Mtn ridge released the sun shortly after 0900 and that added some warmth. Heavy twig debris in wind areas. Scratched up a pretty good surface for skate by running knives down and doing repeated loops. Otherwise a very hard surface with many imperfections to challenge you. Classic track frozen in with a great deal of variety in some places. BF