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Hot weather to start — and then what?

Forecast issued Aug. 26 for the period from Aug. 28 to Sept. 4, 2013

It took awhile, but in our part of the world we are now in a heat wave. Luckily for us it’s near the end of summer, so the intensity doesn’t look to be too bad. If you are trying to harvest, the warm/hot, dry weather is probably in your favour, as long as you have air conditioning and can dodge the odd thunderstorm.

As predicted, a fairly large upper high has formed over the central part of North America and is pushing far enough north to keep all of southern and most of central Manitoba in the heat. Along with the heat has come plenty of humidity and this looks to be the case for at least the next week and possibly longer.

The weather models show this ridge of high pressure remaining in place at least until Sunday or Monday of the long weekend. Over the long weekend an upper low is expected to drop down into Hudson Bay and this low will push the high back down to the south. We could see a few scattered thundershowers or storms when this happens. Overall, temperatures look to be in the upper 20s to low 30s on most days, right at the top end of the usual temperature range for this time of the year. Once the high is pushed southward, we’ll see temperatures drop back to more comfortable low to mid-20s.

For next week the models are having trouble deciding which weather feature will win out. Will the southern high rebuild back in, bringing sunny and hot weather for the first week of school, or will the northern upper low keep the high to our south, resulting in more typical early-fall-like weather? My bet right now is for the warmer weather to win out, but you know, my gut feelings about the weather haven’t been that great lately!

Usual temperature range for this period: Highs, 17 to 28 C; lows, 5 to 14 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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