Forecast: Cooler with a chance of some rain

Issued June 11, 2018: Covering the period from June 13 to 20, 2018

This map shows the total amount of precipitation that fell across the Prairie provinces during the 30 days ending June 7. You can see the rain that fell from the area of low pressure that surged northward late in May across southeastern Saskatchewan and western Manitoba.

Last week’s forecast was a little hit and miss. We didn’t quite see pure sunny skies on Thursday or Friday, but we did see a few showers move through on Friday. Saturday, for most regions, turned out to be a bit of a bust as a moist easterly flow developed that gave most regions clouds, fog and even a little drizzle or light rain. We then saw the cold front move through on Monday, bringing a return to more seasonable temperatures.

This forecast period will begin with a weak ridge of high pressure across the region, bringing with it sunny skies and temperatures near or slightly above the usual temperature range for this time of the year. This weak ridge is expected to collapse on Thursday, allowing an area of low pressure to move into the region on Friday. Expect cloudy skies and cool temperatures, along with a good chance or showers or thundershowers.

Over the weekend, we should see weak high pressure build back into the region, bringing with it a mix of sun and clouds, along with temperatures near or slightly above the long-term average.

The overall flow across our region will become more westerly to northwesterly next week. This will result in cooler temperatures, with daytime highs expected to be in the low 20s and overnight lows in the low teens. There will be several disturbances in the flow that will bring brief periods of clouds along with the occasional shower during the first half of next week. Exact timing of these systems is up in the air, but overall we should see more sun than clouds along with temperatures continuing near or slightly above the long-term average.

Usual temperature range for this period: Highs, 20 to 29 C; lows, 7 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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