yellow watch - snow squall - in effect A frontal snow squall is possible tonight. What: Near zero visibility at times in heavy snow and blowing snow. West winds gusting up to 70 km/h. When: Late this evening or overnight. Additional information: After a period of snowfall today, a strong cold front will pass through the region. This front will bring strong wind gusts and a possible frontal snow squall, briefly reducing visibility to near zero in heavy snow and blowing snow. ### Travel may be hazardous. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts. Prepare for the possibility of quickly changing and deteriorating travel conditions.