SUMMARY

  • Significant snowfall event expected for northeastern Ontario.
  • Timing: System will impact the northern parts of the province from 6PM Wednesday to noon Friday EST
  • Main threats: Steady accumulating snow, strong gusts, low visibility in blowing snow.

Read the PDF for complete details on winds and precipitation. Weather Briefing prepared by Environment and Climate Change Canada.

Outlook for Dec 17th

  • Alberta low pressure system arriving Wednesday evening
  • Snow starts in northwestern Ontario and moves into northeastern Ontario
  • 5-10cm in zone E

Outlook for Dec 18th

  • For northeastern Ontario, 30 to 40cm of snow is expected (zone B)
  • Local amounts of over 50cm are possible.
  • Conditions improve from west to east on Friday morning
  • System exits Ontario by Friday afternoon

Outlook for Dec 19th

  • For northeastern Ontario, 30 to 50cm of snow are expected
  • Conditions improve from west to east on Friday morning
  • System exits Ontario by Friday afternoon