Snow squall watch in effect for Niagara Falls - Welland - Southern Niagara Region
Snow squalls are expected to develop. Under the snow squall bands, visibilities will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
Conditions are expected to become favourable for snow squalls to develop after midnight tonight as cold arctic air begins to pick up moisture from Lake Erie.
Latest indications suggest that a strong snow squall from Lake Erie may begin to affect the region overnight, and continue through the day on Wednesday.
Local snowfall amounts near 15 cm are possible on Wednesday.
In addition, strong and gusty southwesterly winds may cause sudden very low visibility in blowing snow Wednesday.
Hazardous winter driving conditions are expected as a result. Motorists should be prepared to change travel plans accordingly.
Snow squalls may move just to the south of the Niagara Peninsula on Wednesday evening.
Snow squalls cause weather conditions to vary considerably; changes from clear skies to heavy snow within just a few kilometres are common. Road closures are possible.
Snow squall watches are issued when conditions are favourable for the formation of bands of snow that could produce intense accumulating snow or near zero visibilities.