It looks like the warm and humid air I was experiencing in North Carolina last week has followed me north. High heat and humidity warnings stretch from southern Ontario into southern Quebec today as a tropical air mass blossoms northward. Temperatures are already into the mid twenties and will rise to near 32C (90F) today. Add to that high humidity and it will feel more like 40C. Poor air quality in metro regions is also a side effect in this heat, so smog levels are elevated. You are encouraged to do the obvious today - sunscreen, lots of water and seek out A/C if you feel heat exhaustion coming on. Another note on today's weather is winds will be strong and gusty from the southwest 30-50km/h, "the hairdryer effect" pumping the warm air into the valley.
Early yesterday morning an intense complex of thunderstorms developed near Lake Huron and moved south across midwest Ontario into Lake Erie. The storms produced lots of lightning and high winds. The same may occur today but further east and effect eastern Ontario and extreme southern Quebec into northern New York. There is a 40% chance of thunderstorms, and they could be severe with strong winds and hail. The threat will rise on Thursday as a potent cold front approaches the area and lowers humidity levels and the temperature to more comfortable levels by Friday.
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