Issued: Monday, July 19, 2010 Covering: July 21 –July 28

Last week’s forecast continues to play out pretty much as advertised. For the first half of this forecast period, our weather will be dominated by weak areas of low and high pressure. The end result of this will be a tricky forecast as it will be difficult to predict how much sun or clouds any particular day will have and when or if we see any showers or thundershowers. The American forecasters have a good word for this – muddled.

The best chance for showers and thundershowers looks to be on Friday ahead of some very warm air pushing northwards. By the weekend it looks like we will finally see the 30 C heat that Environment Canada has seemed to be promising was only a couple days away during much of last week.

This mini heat wave looks like it will only last a couple of days before an area of low pressure brings showers and thunderstorms to much of central and southern Manitoba on Monday.

Behind this low the models are pointing to a rather strong area of high pressure building over the region – something we haven’t seen in a while now. This high will quickly clear things out by Tuesday of next week. Temperatures will start off a little cool with highs on Tuesday only in the low 20s. This high is then forecasted by the models to remain over our region for most of next week. This should mean that we should see plenty of sunshine along with temperatures warming towards the top end of the usual temperature range for this time of the year by next weekend.

Usual temperature range for this period: Highs: 22 to 31 C Lows: 10 to 17 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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