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Forecast – for Aug. 11, 2011

Last week’s forecast played out pretty much as forecast, with only a few issues as to the timing of the weather systems. For this forecast period it looks as if we will see a slight change in our overall weather pattern. Things are going to feel just a little fall-like during parts of this forecast period, but don’t get too worried: it doesn’t look like we are going to see an early end to summer.

This forecast period starts off with a departing area of low pressure and high pressure building in. This will bring sunshine to most areas, along with temperatures a little cooler than what we have come to expect. A weak area of low pressure is then forecast to move through our region Thursday into Thursday night. This will bring a mix of sun and clouds with the chance of a few showers or thundershowers.

High pressure will build back in starting on Friday, and it should bring mainly sunny skies over the weekend. Temperatures will be pleasant over the weekend with highs in the low to mid-20s. Next week looks like it will start out sunny to partly cloudy, with continued cooler temperatures. The upper ridge that has given us all of the warm temperatures over the last month looks to weaken and almost disappear during this period, so temperatures for the most part will be near to even slightly below average.

Low pressure is then forecast to move through our region around mid-week, bringing with it the chance of some rain, but confidence in this system is not very high. Looking further ahead the models show the upper ridge rebuilding, bringing a return to warmer weather late next week.

Usual temperature range for this period: Highs: 20 to 30 C. Lows: 8 to 15 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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