Hot spell grips areas west and northwest of Thunder Bay
Environment Canada has issued heat warnings for regions west and northwest of Thunder Bay, signalling the first major heat event of the season for parts of Ontario. This early heat wave is forecast to linger until Wednesday night, with daytime highs climbing to 33 °C (91 °F) in the southern areas of the warning zone, particularly around Kenora.
Minimal nighttime relief
According to Environment Canada, overnight temperatures will remain uncomfortably warm, ranging from 18 °C to 21 °C (64 °F to 70 °F) in southern areas. In the northern reaches of the warning zone, daytime highs are expected to hover between 28 °C and 31 °C (82 °F to 88 °F), with nighttime lows between 16 °C and 19 °C (61 °F to 66 °F). The lack of cooling overnight can intensify health risks, especially for those unaccustomed to sudden heat or without access to cooling.
Special weather statements eastward
To the east of the primary warning zone, Fort Hope and Moosonee are included in a special weather statement. These areas are likely to see a brief, one-day heat event on Tuesday, with temperatures peaking in the high 20s to low 30s Celsius (82 °F to 88 °F). Overnight conditions are expected to drop only slightly, remaining near or just below 18 °C (64 °F).
Southern Manitoba also affected
Neighbouring southern Manitoba is facing similar conditions, where a heat warning has been announced with highs in the low-to-mid 30s Celsius (86 °F to 95 °F) and overnight lows of 16 °C or warmer (61 °F+) through Wednesday.
The unseasonal warmth may come as a shock to residents and communities in the northwest and central regions of Ontario, many of whom have only just begun transitioning into typical spring weather.
