Issued: Monday, November 23, 2009 Covering: November 25 –December 2

Last week’s forecast of a trough of low pressure bringing clouds and showers or flurries over the weekend didn’t quite pan out as advertised. The trough did form, but it moved slower than anticipated, which gave us the record to near-record warmth on Saturday. Then, instead of the southern end of the trough becoming dominant, the northern end did. This low then pushed into northern Manitoba, keeping southern and central regions clear and mild.

It looks like the mild weather will continue for this forecast period but since we are moving into winter we will see temperatures cooling down. A weak area of low pressure will slide through southern regions on Wednesday, bringing a mix of sun and clouds along with a chance of some showers or flurries. This low will then combine with another low over northern Ontario and intensify. While it doesn’t look like we will see any precipitation from this low, it will bring a northerly flow to our region, dropping temperatures back down to more seasonable levels.

High pressure then looks as if it will dominate our weather for the remainder of the forecast period, keeping the main storm track either well to our north or to our south. Even though the air will be cooler during this forecast period, without any significant snow cover temperatures will, on most days, be near the freezing mark for highs, with overnight lows in the -10C range. For those of us who are starting to look forward to snow, there don’t appear to be any really good chances for snow through the first week of December.

Usual temperature range for this period: Highs: -14 to 1C. Lows: -25 to -8C.

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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