Friday, 25 July 2014

Unsettled Saturday; Then Calming Down

     Lots of debris cloud today across southern Manitoba ahead of a troughline in south-central Manitoba this morning. The trough is expected to push through the RRV this afternoon before continuing east to the Ontario border. A thunderstorm or shower cannot be ruled out with this, but widespread activity doesn't look very probable. Looking more isolated in nature.

     Skies will clear this afternoon behind the troughline, allowing temperatures to warm up a bit. We should reach 25-26°C in the late afternoon or early evening.

     Tomorrow looks unsettled as a low pressure system and cold front moves through southern Manitoba. After a fairly sunny start in Winnipeg, clouds will increase midday and a few showers are likely in the afternoon and evening. With a bit of instability available, a few rumbles of thunder cannot be ruled out. However, severe activity is not expected at this time.

     High pressure moves in on Sunday, clearing things out. It will be much cooler with highs of only around 21-22°C.

     Temperatures are expected to gradually warm up during the work week. Highs in the high 20's may be possible by mid-week. It will also be dry with no major threats of rain expected through the work week.

     Average mean temperature at the airport so far this July is 18.5°C. With only normal to slightly below normal conditions into next week, it is very likely that July will finish colder than normal. 1981-2010 normal is 19.6°C. The 1984-2013 average is 19.5°C and as a result, July will likely be the 10th consecutive month below the previous 30-year normal. This is truly remarkable because this would be the longest below normal streak since the infamously cold 1880's.