A low pressure area emerging from Texas is expected to intensify into a major winter storm as it tracks northeast towards the Great
Lakes on Wednesday. Latest indications suggest the moisture laden Texas low will track northeastward just south of Lakes Erie and Ontario Wednesday night and Thursday.
A swath of regions from near Grand Bend across Stratford, Kitchener and Guelph are expected to be very close to a snow to rain boundary associated with this moisture laden winter storm.
Latest indications suggest snow, mixed with ice pellets, will move into the regions Wednesday morning. There is a chance that the snow and ice pellets could change over to freezing rain or even some rain on Wednesday night, depending on whether or not the temperature can sneak above the zero degree mark.
The mixed precipitation is then expected to change back to all snow by Thursday morning as colder air begins to work its way in from the north.
Total snowfall and ice pellet amounts may range from a coating to 2 cm over southern areas to 15 to 20 cm over northern parts, where more of the precipitation will fall as snow.
A small change in the exact track of the low pressure centre will have a significant effect on how much snow, freezing precipitation or rain falls as a particular locale.
Travelling conditions are expected to deteriorate quickly after the snow arrives on Wednesday.
Brisk east to northeast winds may also result in occasional blowing and drifting snow in exposed areas, contributing to hazardous travelling conditions.
Environment Canada is closely monitoring this situation. This winter storm watch may eventually be upgraded to warnings as this event draws closer.
Avoid travel if possible. Travel is expected to be hazardous due to reduced visibility in some locations. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. Poor weather conditions may contribute to transportation delays. There may be a significant impact on rush hour traffic in urban areas. If you must travel, keep others informed of your schedule and destination and carry an emergency kit and mobile phone.