Issued: Monday, March 16, 2009 Covering: March 18 –March 25

As is typical when spring starts to move in, some regions will see plenty of sunshine along with really warm temperatures while other areas are cloudy, foggy and cool. This was the case last weekend as eastern regions saw temperatures soar to nearly 10C under plenty of sunshine and light winds, while western areas had the clouds, fog and cooler conditions.

For the regions that saw the milder conditions, we will see a bit of a cooldown during the middle half of this week as arctic high pressure nudges its way southward. Currently it looks as if we will only see the very edge of the cold air before we see a return to a milder southwesterly flow toward the end of the week.

Over the weekend we will have to start watching a western storm system that the models have been forecasting to develop for several days now. This system looks like it will pump plenty of warm air over southern sections of agricultural Manitoba. Just how far north this warm air will push is uncertain but it looks like temperatures will drop off fairly quickly as you move northward.

The strength and exact track of this storm system is still very uncertain but the potential exists for this storm to drop significant amounts of precipitation beginning late Sunday and through the day Monday. Making an early guess, I would say that eastern areas will see more rain than snow from this system, while western and northern regions will see mostly snow. Once again, the confidence level as to the track and intensity of this system is fairly low right now, but this system definitely deserves our attention.

Looking beyond this period, the models point to fairly mild weather to the end of the month, with no signs of any strong outbreaks of cold air.

Usual temperature range for this period: Highs: -7 to +6C. Lows: -20 to -4C.

Probability of precipitation falling as rain: 20 per cent.

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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