Friday, September 14, 2012

Half Order of 30C With A Touch Of Below Normal Weather

 We will see fairly usual weather for this time of year across Southern Manitoba with a big exception being tomorrow. Why? Well Saturday will hold southerly winds as another upper level ridge moves through our province, that will provide temperatures to rise into the high 20's or even low 30's on Saturday Afternoon. This heat may be the last of the year, all should enjoy!

The upper ridge has already got going over our area, however this ridge should shift east throughout the day tomorrow letting our temperatures rise into the mid to high 20's.
For the night ahead clear conditions will be in place with light winds out of the south allowing for our temperatures to remain mild and stay around a range where frost will be unlikely. All temperatures will be from the 5 to 9C range in Southern Manitoba, the coolest places will likely be in the parklands out by Dauphin and Wasagaming where you have the highest terrain (which allows for more cooling in those regions).

A look at temperatures in Southern Manitoba Tomorrow afternoon with the ridge in place, look at the corresponding temperature legend for your area and add on 13C to figure out the actual temps at the surface.
Through the day Saturday the upper level ridge I was talking about will move across the province, bringing with it temperatures in the 12C range in SE MB to 20C in SW MB. Expect surface temperatures to peak from 25C to 32C in the southern part of the province. All of this will be ushered in by the southerly winds, if we had downsloping winds from the Southwest then our temperatures would be a lot higher tomorrow. (See the picture on the top for greater detail)

A powerful cold front will slide through Southern Manitoba tomorrow evening dropping our temperatures down into the mid to high teens for Sunday, get out there and enjoy it while you can!
However, a powerful cold front will be over the central part of the province on the day Saturday before it drives southwards through Southern Manitoba during the evening (above). This will allow for shower chances and maybe the odd thunderstorm before cooler Arctic air ushers in from the North. Our 850 MB Temperatures will drop to 0C for Sunday which will most likely hold our daytime temperatures to the mid to high teens, under cloudy skies with some possible showers off of the lakes. The cooler weather continue into the week when our 850 MB Temps could drop down to the minus single digits allowing for our temperatures to only reach the low teens during the day, and overnight lows in the mid to low single digits with some places reaching the minuses (yes that cold!). Rain and cloudcover will be possible during the week with the cooler weather. Feel Free to follow me on Twitter for the rest of the weekend for weather updates @SouthMBWeather.

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