Ontario - Canada   2026-03-07   Saturday   44.06N, -79.49W

Newmarket

Ontario - Canada
2026-03-07

yellow advisory - fog - in effect

Issue date: 2026-03-07T14:44+00:00

Near zero visibility in fog is expected.Locally dense fog will dissipate late this morning or early this afternoon as winds become southwesterly.###Travel will likely be hazardous in some locations. Visibility will likely be suddenly reduced at times.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstormec.gc.ca or post reports on X using #ONStorm.

yellow warning - rainfall - in effect

Issue date: 2026-03-07T14:32+00:00

Rainfall, combined with melting snow, is expected. The frozen ground has a reduced ability to absorb this rainfall.What:Rainfall amounts of 15 to 40 mm with locally higher amounts possible due to thunderstorms. Substantial snow melt contributing to ponding on roads and low lying areas.When:Continuing through this evening. Additional information:Several rounds of showers and isolated thunderstorms are expected. The rain combined with mild temperatures will likely melt much of the significant snowpack and lead to additional runoff.The rain will taper to light showers from northwest to southeast through the day.For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details###Water will likely pool on roads and in low-lying areas.Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstormec.gc.ca or post reports on X using #ONStorm.