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Forecast: Summer heat and humidity are moving in

Issued June 6, 2016 – Covering the period from June 8 to June 15, 2016

For last week’s forecast the timing of the weather system was slower than expected thanks to another upper-level low that brought a fairly wet end to May and the first day of June. The same upper low brought the extra clouds along with a few showers to central and eastern regions on Sunday and Monday.

For this forecast period, that pesky upper low will finally be out of our region and the ridge of high pressure that was forecast to move in will finally be able to do so. We should start to feel the ridge on Wednesday, with more sun than clouds and temperatures warming into the mid-20s. We may see an odd thunderstorm overnight Wednesday as a weak system rides over the building ridge. By Thursday we’ll begin to feel the full effect of the upper ridge, with plenty of sunshine along with plenty of heat and increasing humidity. Expect daytime highs to be in the upper 20s or even the low 30s, with overnight lows only falling into the mid-teens. Along with the warm temperatures we’ll also see increasing humidity as gulf moisture is pulled northward.

It is a bit of a question mark as to what kind of weather we’ll see over the weekend as the upper ridge pushes eastward and an area of low pressure builds to our west. With warm air, moisture and low pressure slowly moving in, we can expect to see a few scattered but strong thunderstorms develop on any given day. The best chance looks to be late on Sunday and into Monday as the main area of low pressure pushes eastward. Temperatures over the weekend will depend on just how much sunshine we end up getting.

Confidence in next week’s forecast is low, but currently the models indicate the upper ridge will begin to rebuild across our region, bringing dry and warm weather for most of the week.

Usual temperature range for this period: Highs, 19 to 28 C; lows, 6 to 15 C.

About the author

Co-operator contributor

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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