Issued: Monday, August 17, 2009 Covering: August 19 –August 26

It looks like this forecast period will end up being the reverse of last week’s forecast. Low pressure moved in last weekend as predicted and then slowed and intensified as it pushed to the northeast. This has placed our region under a cool northwesterly flow. Within this flow we will see another area of low pressure dive southeastward on Wednesday, bringing with it the chance of more showers.

This low should quickly move out and we should see high pressure begin to build in on Thursday. At the same time the western upper ridge of high pressure that has been providing all the heat out west will begin to push eastwards and the combination of the two features should bring plenty of sunshine and warm temperatures over the weekend.

Warm conditions should continue into the early part of next week before another area of low pressure is forecasted to move in around Wednesday. This low will bring the chance for showers and thunderstorms on Wednesday and Thursday with the best chances being in the central and northern parts of agricultural Manitoba. This low will bring what appears will only be a short return to cooler temperatures. The long-range models are showing the western ridge rebuilding late next week bringing a return to warm temperatures.

So we might still have a chance of not seeing nine months in a row of below-average temperatures.

Usual temperature range for this period: Highs: 19 to 29C Lows: 6 to 15C

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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