|Alpine Weather Report|
ISSUED: Monday January 18, 2021 10:00 MST
SYNOPSIS: High pressure will dominate for dry, partly cloudy conditions today and Tuesday. A weak upper trough should produce cloudy periods today while a stagnating airmass should allow for patchy low cloud & fog tonight and Tuesday. A large upper trough clipping southeastward from the Gulf of Alaska should tighten the pressure gradient for increased wind Tuesday afternoon and a 60% chance of flurries Tuesday night.
FREEZING LEVEL: Rising to near 1200-1300 metres this afternoon. Surface tonight and Tuesday.
FERNIE ALPINE RESORT FORECAST (1615 metres):
TODAY: Sunny with cloudy periods. High near -1.
TONIGHT: Clear with cloudy periods and fog patches, more extensive low cloud possible overnight. Low near -8.
TUESDAY: Cloudy with sunny periods and morning fog patches. Increasing wind during the afternoon. High near -4.
TUESDAY NIGHT: Mainly cloudy with a 60% chance of flurries, minor accumulation possible. Moderate to strong winds. Low near -8.
WEDNESDAY: A mix of sun & cloud, slight chance of morning flurries. Windy at times. High near -4.
THURSDAY: Cloudy with sunny periods, possible morning fog patches. High near -5.
FRIDAY: Sunny with cloudy periods. High near -3.
CONFIDENCE/DISCUSSION: Fair to good confidence of the general pattern through Wednesday, fair beyond and also fair confidence of the chance of light snow Tuesday night. Todays weak upper disturbance could result in greater than currently predicted cloud cover this afternoon. A temperature inversion should briefly develop tonight and Tuesday morning. The majority of the snow associated with the trough expected Tuesday night should be confined north of Fernie, its approach and passage appear to be more of a wind event, a strong wind could develop Tuesday afternoon. A dry northwesterly flow is still anticipated Wednesday through Thursday morning. A minor southwesterly feed of moisture from a small upper low pressure over the south coast is currently suggested to provide variable cloudy or cloudy periods Thursday afternoon and Thursday night. High pressure building off the coast favours a dry northerly flow Friday.