A strong clipper system is poised to move through southern Manitoba beginning tomorrow... Rain, a few embedded rumbles of thunder, snowfall, strong winds and cooling temperatures are all in the cards over the next couple days for southern Manitoba.
Tomorrow, strong south winds and cloudy skies will be seen. Showers are expected to begin in the RRV in the afternoon and continue more or less the rest of the day. A few embedded rumbles of thunder will be possible throughout southern Manitoba tomorrow afternoon and evening. However, they will be isolated in nature so not everyone will hear thunder and see lightning. Localized heavy downpours are the main threats if thundershowers do develop.
By tomorrow night, rainfall will changeover to snowfall over western Manitoba and the northern Interlake, including in Dauphin. As much as 10 cm could fall in these areas by Tuesday afternoon. Meanwhile, scattered showers are expected to continue in southeastern parts of the province.
Tuesday looks like a miserable day with damp conditions, strong northwest winds and stalling or even falling temperatures through the day. There may even be a few scattered flurries here in the city.
In total, a general 5-15 mm of rainfall is expected across southern Manitoba with locally heavier amounts possible.
Unfortunately, another cool down is expected behind this low pressure system. Well below normal temperatures are expected Tuesday through to the end of the week before conditions are expected to moderate by next weekend.
I will have an update late tomorrow morning with my updated thoughts. I may have some maps as well.