Potent Clipper System On The Way, Winters Last Snowfall???

 Hi everyone, Mike McGregor here. I am here to provide another weather update with details on the next system expected to impact southern and central Manitoba. 

Today: Sunny to partly cloudy skies are likely to continue with calm conditions continuing, temperatures today are in the low minus single digits with highs near zero. 

Tonight: Clear conditions are likely with temperatures in the low minus single digits in the southwest to temperatures in the low minus teens in eastern Manitoba with areas in the Lake Winnipeg area seeing lows in the minus 20's. 

Tuesday: As the low pressure system approaches cloudy skies are likely with some parts of the day having sunny periods. Temperatures in the low minus single digits are likely in portions of western Manitoba, areas in the rest of the south will reach the low plus side of single digits. 

Tuesday Night: The clipper system will begin moving into southern Manitoba, with rain mainly falling during the overnight timeframe from western Manitoba into the red river valley before the rain in the red river valley turns to snow and freezing rain during the morning hours. There is enough lift with this system to have thunder embedded within the rain and freezing rain. General non severe thunderstorms are possible during the overnight. The thing with this system is that it will be far enough north that the heaviest of the snow will be impacting central parts of Manitoba, there snow will begin during the late evening hours and will persist into the overnight timeframe. Snow and blowing snow with near zero visibility will occur in the interlakes and north interlakes region south of Thompson along a west to east line from swan river to bissett. Temperatures on Tuesday Night will likely drop only into the low minus single digits with the exception for southwest Manitoba where temperatures will remain above zero. 

Wednesday: The snow will then move into eastern sections of Manitoba during the latter half of the morning, snow and heavy snow will persist in the central parts of MB including Swan River to the interlake regions of Manitoba into the eastern regions. There is a chance for the system to wrap around enough that by late afternoon a batch of light flurries and or rain may form in southwestern Manitoba and the south central part of Manitoba. However the system looks to occlude/close off enough that clearing takes place during the afternoon in the south where high temperatures will rise into the mid single digits to near 10C. Areas further north will see highs in the low minus single digits. 

Wednesday Night: The eastern edge of the system will likely begin impacting parts of southern Manitoba with light snow and periods of blowing snow. No major accumulation is likely as it moves through. Overnight low temperatures will drop in the low minus single digits in southern Manitoba, with lows in the minus teens in the central part of Manitoba. 

Total Snowfall Accumulations,15-25 to 30cm likely in the interlakes and central Manitoba. 4 to 10mm of rain in the southwest and western red river valley. 4-8cm of snow in the red river valley with a trace to 2mm of rain and risk of freezing rain.  Graphic Below: (thanks to Justin Oretel For Posting this Graphic. 

 

Second Half of The Week: Cooler weather conditions are likely with calmer weather. Highs in the low single digits with lows in the minus single digits. A warmup will come by the weekend, high temperatures in the upper single digits are possible with highs in the low teens even possible according to ECMWF AIFS model.