I have to begin this week’s forecast by saying the overall confidence in the forecast is not that high! The different weather models have not been very consistent from model run to model run, which means it is a tough period to forecast.
The models show an area of low pressure moving across the southern Prairies on Thursday. This system will likely bring some light snow to central regions as they stay on the cool side of the low. Southern regions will likely see occasional showers as warm air is pulled up in front of the low. Temperatures should be fairly mild ahead of the low, with highs expected to be at or above the long-term average. If the low takes a more southerly track, then southern areas will see cooler conditions and snow instead of showers on Thursday. As the low passes, temperatures will cool, with highs falling below the freezing mark on Friday.
We should see temperatures slowly cool over the weekend as arctic high pressure slowly builds to our northwest. By Sunday, high temperatures should be in the -5 to -8 C range with overnight lows falling to around -15 C. Skies should be partly cloudy over the weekend, with only a slight chance of some light flurries on Friday and early Saturday.
Cool to cold temperatures look as if they will continue through much of next week as part of the arctic high breaks off and slides southward. High temperatures are forecasted to be in the -5 to -10 C range next week with overnight lows around -15 to -20 C.
Usual temperature range for this period: Highs, -10 to 2 C; lows, -21 to -6 C. Probability of precipitation falling as snow: 90 per cent.