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Forecast – for Dec. 16, 2010

This forecast period starts off a little tricky as the models are forecasting an area of low pressure to our west with a ridge of high pressure persisting to our east. The question is how far east the western low will be able to push and just where any snow will fall.

Currently it looks like the eastern ridge of high pressure will stay fairly strong and stationary. This means that western and extreme southern parts of Manitoba have the best chance of seeing any measurable snow from this midweek system. By Thursday it looks like the eastern ridge will win out as the western low weakens and drops to our south.

For the remainder of the forecast period it looks like weak high pressure will be in place across much of Western Canada. This should bring us sunny to partly cloudy skies and temperatures around the middle of the usual temperature range for this time of the year.

Looking further ahead to late next week and Christmas, the weather models have been consistently trying to develop an area of low pressure around midweek. This low is then expected to move through our region just before Christmas, bringing with it a chance of some light snow. The models are also showing temperatures to be fairly mild to start off the holidays, with highs expected to be around -7 to -10 C and overnight lows around -18 C.

Usual temperature range for this period: Highs:-19 to -2 C. Lows:-28 to -12 C.

About the author

Co-operator contributor

Daniel Bezte

Daniel Bezte is a teacher by profession with a BA (Hon.) in geography, specializing in climatology, from the U of W. He operates a computerized weather station near Birds Hill Park.

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