Climate Corner March 2025 - Extreme Weather and Climate Change

Meteorologists have said that the storm in late November and December was the biggest in recent memory, dumping a reported 140 cm on Gravenhurst. And since then, massive snow fall has continued to land in areas across the watershed, with many communities reporting record-level snows. 

Another part of climate change is having large swings in weather from year to year. In the 2023-2024 winter season there was barely any snow, and it was mild.  Now we are having more snow than we can manage and a much colder winter.  Adapting to climate change means being prepared for these intense swings in weather.   

The large snowpack we have now means there will be a lot of melting in the spring.  We need to be prepared for a more intense flooding season this spring, given the large amount of snow will melt and run off into our rivers and lakes. From the 2023 Muskoka Watershed Council Report Card, “In sequence, if there is enough snow, if it melts quickly, if heavy rain falls during the melt period, and if further significant rain also falls before the watershed drains then these components combine. If they result in 250 mm to 300 mm of water accumulation, then the watershed cannot contain this amount of water, nor can it release the water downstream fast enough due to physical constraints in the geography and we get flooding.”  We will be sharing more about how to prepare for flooding next month.  

Here are some tips to be prepared for a heavy snow season from our Emergency Preparedness Webpage: 

1. Clear 911 Signs:  After every snowfall, make sure your 911 address sign is visible. This small action can save paramedics valuable time in an emergency when every second counts. 
2. Check on Neighbours:  Winter can be tough for seniors and those with differences in mobility. Take a moment to check on neighbours who might need assistance, whether it’s clearing pathways or even helping with groceries. 
3. Shoveling Safely:  Shoveling is hard work and can put strain on your body. Don’t overexert yourself—take breaks, use proper technique, and dress warmly. If you’re feeling unwell, stop and rest. Safety comes first! 
4. Drive Cautiously:  Snow and ice can turn roads into hazards quickly. Reduce your speed, increase following distances, and avoid sudden stops. Keep your car Winter Ready with snow tires and an Emergency Kit. 
5. Stay Alert to Conditions:  Whether it’s black ice on the road or icy patches on walkways, always stay aware of your surroundings. Wear footwear with good treads, avoid rushing, and watch for hidden hazards.  
6. Prepare an Emergency Kit: Your emergency kit should have items for your family to remain safe and taken care of for at least three (3) days immediately following an emergency 

• i) Essentials you may need to include are non-perishable and easy to prepare foods, can opener, bottled water (4 litres per person per day), flashlights, candles and matches/lighter, crank radio, cell phone charger, batteries, blankets, whistle, extra cash and car keys, hand sanitizer, personal identification and important documentation (i.e. financial, mortgage and insurance records) 
• ii) Special consideration may be given to babies and small children (diapers, baby food, etc.), medical supplies and equipment, people with disabilities, and your pets 

Sources:  

CBC: www.cbc.ca/news/canada/toronto/warming-great-lakes-intense-snow-storms-1.7422806