The last few hours of the summer season will be warm and windy in Manitoba on Tuesday. The autumnal equinox arrives at 7:05 p.m., marking the beginning of astronomical fall. Before the seasons change, an upper ridge of high pressure is keeping the sun shining across the province. Strong and gusty south winds will usher in a warm air mass that will send temperatures soaring well above normal for this time of year. Daytime highs in northern Manitoba will be just as warm, if not warmer, than in the south, much like Monday. For perspective, Tadoule Lake, one of the northernmost communities in Manitoba, was the provincial hot spot Monday, reaching a high of 24.9 C. The normal high for the community for this time of year is just 8 C. Winnipeg, by contrast, reached just over 20 C. Expect a similar daytime high in the city on Tuesday. Tadoule Lake, Churchill and Gillam are forecast to climb higher, with afternoon temperatures expected to reach near 23 C. Northwestern Ontario will also enjoy sunshine and daytime highs in the upper teens Tuesday. South winds will be lighter than in Manitoba. Temperatures will dip close to the freezing mark in the region overnight, so a frost advisory is in effect for parts of the region, issued by Environment and Climate Change Canada. Meanwhile, the first night of the fall season will be relatively warm across Manitoba, with most regions expected to remain in double digits overnight. No risk of frost here. An approaching low pressure system will bring the next round of September showers to southern Manitoba on Wednesday.
