What was bad weather for Alberta last week was fairly good to us here in Manitoba. A broad region of low pressure developed over Western Canada last week and it decided to stick around. This kept the forecast arctic high and the resulting cold temperatures bottled up north. This persistent region of low pressure kept sending weak pieces of energy in our direction last week, which brought us a mix of sun and clouds along with some light snow.
For this forecast period we are going to see a battle develop between cold arctic high pressure and an area of low pressure forecast to move in off the Pacific by the middle of this week. The models show the high pushing southward and then getting squeezed or blocked by the low pressure over the northwestern U.S. This battle between the two systems is going to make for a tough forecast.
Currently the models show part of this western low breaking off and moving along the border during the day on Friday. If this happens, there will be a good chance at seeing snow across most of southern and central Manitoba during the day Friday and into Saturday morning.
Over the weekend, as the high continues to push in, temperatures will begin to drop. Monday and Tuesday look to be the coldest. Luckily it looks like this arctic high will push south and east of us fairly quickly. This will place us in a more southwesterly to westerly flow by the middle of next week. This will bring milder air back into our region, with daytime highs during the second half of next week expected to be around -10 C or even a little warmer.
Usual temperature range for this period: Highs:-22 to -6 C.Lows:-33 to -16 C.