As expected, we are watching for the continued evolution of a series of complex forms of energy dispersing from the Northern Prairies & USA, and strengthening near the Great Lakes bringing mostly heavy snow, some freezing rain (near Lake Erie), and some rain (mainly Ex. SW Ontario).
Rain should be almost exclusively present towards Extreme Southwestern Ontario (and begin Thursday morning); freezing rain will be limited to the Northern Lake Erie shoreline (and begin mid Thursday morning); for most other regions, the predominant precipitation will be snow.
Generally, the system will begin for many, in the Afternoon hours, and continue throughout the Evening and Overnight. Lingering light snow is possible for the Friday AM commute contingent alongside further blowing snow.
The evening commute, particularly Western GTA and Southwards along the 401 down to the London region, in addition to the QEW, will be significantly impacted. Conditions will rapidly and exponentially deteriorate through Thursday Mid-Late Evening and Overnight.
Blowing snow will also be of significant concern for many, Thursday into Friday. Due to this weather phenomena being present, it is important to be prepared for brief whiteout conditions, particularly those who will be traveling after sunset on Thursday PM or Pre-Dawn on Friday.
Vorticity, moisture, lift and instability remain very high, thereby allowing this storm to blossom and otherwise overachieve more-so compared to normal.
UPDATE 03/01/2018 @ 7:15PM
The Windsor region will likely overachieve compared to our forecast map above, and as such, that region can expect 15-20cm rather than the 6-12cm originally forecasted.
Please stay tuned, as we at TCW are monitoring this situation extremely attentively.
Drive safe and always be alert during wintery conditions. After this recent “warm-up” in prior days, it is crucial to remain extra vigilant for negligent drivers on the road.
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