Forecaster: Stephen Déry & Angel
Synoptic overview: The continental divide is presently under the influence of a strong upper level trough currently moving across the western Cordillera with an associated surface low pressure system. The main surface low with central sea-level pressure of 997 hPa resides over Montana and will move northeastward into Saskatchewan this morning. Precipitation on the ‘back’ side of the system has impacted our study area overnight and the cloud and precipitation shields are moving back towards the southwest. Thus an upslope flow along the foothills of Alberta into the Rockies will develop. Temperatures are cool enough for snow at treeline and in the alpine, with the precipitation abating in the mid- to late afternoon. Gusty winds are likely today on the back side of the storm. Showery weather will follow on Saturday as we remain under the influence of the upper level trough as it moves eastward.
Rain today with possible 5-10 mm of accumulation. Winds will be steady and gust up to 50 km/h. Temperatures will stay cool today but hover about the freezing mark so that precipitation will remain in the liquid form.
Conditions will remain cool at Fortress Mountain today and remain below the freezing mark today in periods of snow perhaps mixed with rain. Precipitation will continue throughout the day and diminish in intensity by mid-afternoon. Residual snow showers are likely thereafter and overnight as temperatures remain cool. Note that ECCC is continuing its snowfall warning for the region with highest snow accumulations likely in the norther sections of Banff National Park, with possibly up to 10 cm of snow.
Storm Mountain Lodge
Light to moderate snow will continue at Storm Mountain Lodge this morning where temperatures remain near freezing. Snow will continue until early afternoon before diminishing. Maximum today will reach about 0C.