Update: Environment Canada has ended the snow squall watch for western Middlesex County.
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Areas to the west of London could see another blast of snow on Monday.
Environment Canada has issued a snow squall watch for Strathroy, Komoka, and western Middlesex County.
"The snow squalls currently affecting regions south of Lake Huron may shift into the area later this morning," the advisory said. "These snow squalls would have the potential to produce local snowfall amounts near 10 cm. Visibilities may also be reduced to near zero in blowing snow due to strong northerly winds."
The snow squalls are expected to weaken by Monday afternoon.
London-Middlesex is already under an extreme cold warning. Bitterly cold temperatures and wind chills between minus-20 and minus-30 are also expected tonight and Monday.
