|Alpine Weather Report|
ISSUED: Monday January 23, 2017 10:15 MST
SYNOPSIS: A deep upper trough draws on limited moisture to maintain variable cloud and a slight chance of flurries later today as it passes eastward over the Fernie area. An upper ridge strengthening offshore supports a northerly flow over the East Kootenay & Rockies tonight, Tuesday and Tuesday night. Patchy moisture entrained in this cooler & more stable northerly flow aloft should lead to partly cloudy skies tonight through Tuesday and Tuesday night with a continued risk of flurries through the period.
FREEZING LEVEL: Surface.
FERNIE ALPINE RESORT FORECAST:
TODAY: Sunny with a few bands of cloud this morning. 30% chance of an afternoon flurry. High near -4.
TONIGHT: Clear with cloudy periods and a 30% chance of flurries. Patchy fog may develop overnight. Low near -9.
TUESDAY: A mix of sun and cloud. Risk of morning fog patches. High near -6.
TUESDAY NIGHT: Cloudy with clear periods. Patchy fog may redevelop overnight. Low near -11.
WEDNESDAY: Sunny with a few bands of cloud. High near -5. Low near -11.
THURSDAY: Mainly sunny. High near -3. Low near -8.
FRIDAY: Mainly sunny. High near -2. Low near -7.
CONFIDENCE/DISCUSSION: Fair to good confidence in the general pattern, fair on details relating to local cloud cover and resultant temperatures. More prolonged sunny periods could support slightly warmer than forecast temperatures this afternoon. Tough call on the thickness & extent of local low cloud beginning tonight – continuing through the outlook period as high pressure and a strengthening temperatures inversion dominate. Ridgetop temperatures could begin to approach the freezing mark by Thursday afternoon. The blocking ridge of high pressure could be overcome by an upper trough bringing increasing wind and limited precipitation Sunday or Monday.