8:59 AM EST Wednesday 18 December 2013
Special weather statement for
Significant winter weather expected late this week and this weekend.
Several disturbances originating in Texas are expected to move towards the Lower Great Lakes starting Friday. A storm track will set up from the midwest U.S. east to Southern Quebec. The first system is expected to ride up along this track on Friday and precipitation with this system is expected to spread into Southwestern Ontario Thursday evening and through the remainder of Southern Ontario by Friday morning. The exact location of this storm track will determine whether the precipitation falls as rain, freezing rain, ice pellets, or snow.
The most recent assessment suggest that areas north of a line from Kincardine to Barrie to Ottawa are likely to see mainly snow. South of this line, precipitation could fall as snow, ice pellets, freezing rain or even periods of rain.
The precipitation may become more intermittent on Saturday before another more potent storm approaches Southern Ontario this weekend. The next storm system is expected to tap into moisture from the Gulf of Mexico and has the potential to bring a significant and extended period of freezing rain across Southern Ontario Saturday night through Sunday. There is also the possibility for significant snow and ice pellets east from Lake Huron to the Quebec border.
There is still considerable uncertainty surrounding the exact position of the storm track. Any change in the storm track’s position will affect precipitation amounts and type. However, it is very likely that holiday travel will be significantly impacted. We recommend watching future forecasts and taking the necessary precautions. Environment Canada will continue to monitor this developing situation.
Please monitor the latest forecasts and warnings from Environment Canada at http://www.weatheroffice.gc.ca.