Prepare for Blowing Snow and Poor Visibility
THUNDER BAY – WEATHER – Snow squalls are making their presence known along the Northshore of Lake Superior, impacting areas such as Nipigon, Rossport, Schreiber, Marathon, and Terrace Bay. Environment Canada has issued Snow Squall Warnings as these intense bands of snow are expected to bring hazardous conditions this evening through Wednesday morning.
What to Expect
Snow squalls driven by lake effect and enhanced by a low-pressure system over Lake Superior will bring heavy snowfall with localized accumulations near 15 cm. Snowfall rates may reach a challenging 2 to 5 cm per hour, creating very poor visibility in heavy snow and blowing conditions. The wet and heavy nature of the snow also raises concerns for power outages.
Timing Matters
- When: This evening through Wednesday morning.
- Peak Impact: Overnight tonight and during early Wednesday travel hours.
Snow squalls are notorious for causing abrupt changes in weather, with clear skies transforming into heavy snow within mere kilometers. These unpredictable bursts of snow and wind could lead to road closures, so plan accordingly.
Travel Considerations
Highways 17 and 11, key routes in the region, are expected to face challenging conditions. If travel is unavoidable, ensure you’re prepared with an emergency kit that includes drinking water, food, and a flashlight. Let someone know your travel plans, including your schedule and destination, and keep your mobile phone handy.
Did You Know?
Snow squalls are localized weather phenomena caused when cold air flows over the relatively warmer waters of a lake, picking up moisture that falls as snow over land.
Keep your snow gear ready, as you’ll need it to tackle this storm. By Wednesday morning, the squalls should subside, allowing for a safer commute and clearing skies along Lake Superior’s stunning but stormy coast.
