Forecast: High pressure to bring warm, dry weather

Issued May 2, 2016 – Covering the period from May 4 to May 11, 2016

As forecast last week, our weather pattern has undergone an expected shift, as high pressure continues to build over our region. With this building ridge it looks like winter is going to be firmly locked away well to our north, and we’ll start to feel some summer-like heat moving in.

This forecast period begins with a large sprawling ridge of high pressure stretching from Alberta down into the southern U.S. This ridge will continue to bring us sunny skies and warm temperatures under strong late-spring sunshine. By Thursday, we’ll see an area of low pressure form to our north and west. Southerly winds ahead of this system will help push temperatures into the upper 20s, with even a few +30 C readings possible on Thursday or Friday. There is a good chance we’ll see some clouds with a few showers or thundershowers late Friday as the western low pushes through, but accumulations look to be very small, if any. There will be a slight cool-down behind the low, but it will only be temporary as warm high pressure builds back in by Sunday.

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This high, combined with an area of low pressure crossing Northern Canada early next week, will bring us more dry and mild weather for the first half of next week. Daytime highs are expected to be in the mid-20s and overnight lows in the high single digits. The weather models show a cold front sliding down behind the northern low sometime late Tuesday or during the day Wednesday. This front looks to be dry, but it will bring us more seasonal temperatures during the latter half of next week.

Usual temperature range for this period: Highs, +9 to +24 C; lows, -2 to +7 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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