July 13th Weather Discussion

Today marks the beginning of a prolonged heat wave as thermal ridging strengthens across the Great Lakes region, ushering in near-record-breaking temperatures for mid-July. Mostly sunny to partly cloudy skies dominate as surface high pressure settles

Today marks the beginning of a prolonged heat wave as thermal ridging strengthens across the Great Lakes region, ushering in near-record-breaking temperatures for mid-July. Mostly sunny to partly cloudy skies dominate as surface high pressure settles over the region, and southwest winds shift to the west at 15km/h with gusts to 25km/h. High temperatures soar to 33°C, with higher humidex values making it feel much warmer.

Overnight lows only drop to 22°C, making for an uncomfortable, warm night. Tomorrow features partly cloudy skies persisting early, then gradually clearing through the afternoon under continued high-pressure dominance. West to northwest winds at 10-20km/h with gusts to 35km/h signal the eventual arrival of cooler air from the north, though not before afternoon highs reach 29°C.

By Wednesday, a front from northern Hudson Bay will finally shift southward, bringing temperatures back to near-normal values and ending the exceptional heat.