Weather & Storm Watch
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December 12, 2025
Snow Squall Watch – ORANGE ALERT
- Bracebridge – Gravenhurst
- Hunstville – Baysville
- Port Carling – Port Severn
Impact Level: High
Forecast Confidence: High
Intense snow squalls expected off Georgian Bay Saturday.
WHAT
Snowfall accumulations of 20 to 40 centimetres. Locally higher amounts possible.
Poor visibility in areas of heavy snow and blowing snow.
Peak snowfall rates of five to 10 centimetres per hour.
WHEN
Beginning tonight (Friday) or Saturday morning, and ending Saturday night.
ADDITIONAL INFORMATION
Lake effect snow squalls are expected to develop Friday night near Georgian Bay, and further intensify Saturday morning. It is possible that a very intense snow band will affect portions of the area during the day Saturday. If this band becomes stationary, amounts in excess of 40 centimetres will be possible.
Westerly winds gusting up to 50 kilometres per hour will create areas of blowing snow, further reducing visibility.
The lake effect activity is expected to shift south of the area Saturday night as winds become more northerly.
Travel may be extremely hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
Consider rescheduling travel and outdoor activities.
Snow Squall Watch – YELLOW ALERT
- Haliburton – Minden – Southern Haliburton County
Impact Level: Moderate
Forecast Confidence: High
Snow squalls expected off Georgian Bay Saturday.
WHAT
Snowfall accumulations of 10 to 20 centimetres. Locally higher amounts possible.
Poor visibility in areas of heavy snow and blowing snow.
WHEN
Beginning Saturday morning or afternoon, and ending Saturday night.
ADDITIONAL INFORMATION
Lake effect snow bands off Georgian Bay are expected to extend to Haliburton County at times on Saturday.
The lake effect activity is expected to shift south of the area Saturday night as winds become more northerly.
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times.
Prepare for the possibility of quickly changing and deteriorating travel conditions.
ALERT COLOURS
There are 3 types of alert colours and symbols. The colours tell you what risk the weather is to you. The weather alert colours move from yellow, to orange, to red, as the potential risk increases.
YELLOW
- Hazardous weather may cause damage, disruption, or health impacts
- Impacts are moderate, localized and/or short-term
- Yellow alerts are the most common
Orange
- Severe weather is likely to cause significant damage, disruption, or health impacts
- Impacts are major, widespread and/or may last a few days
- Orange alerts are uncommon
RED
- Very dangerous and possibly life-threatening weather will cause extreme damage and disruption
- Impacts are extensive, widespread, and prolonged
- Red alerts are rare