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  • Justin Williams

The Heatwave continues

Ever since the official start of Summer last Thursday, a heatwave has been setting up that has encompassed most of the country. For most of us in North Georgia, this weekend was the hottest one we have had all year with Athens and Atlanta topping out at 99 degrees. Many places south of Atlanta saw 100 degrees or more. North Georgia did see 100 degree heat indexes on Saturday and Sunday though, with both days having high temperatures soar into the upper 90s. For now, North Georgia has stayed out of triple digit high temperatures, but there will be plenty of chances this week for us to break that trend.

Tonight, a cold front will be passing through North Georgia, which will initiate spotty thunderstorms across our region. No severe weather is expected, and our region could see spotty downpours up to half inch in rainfall totals as the system moves southeast. Along with this, a surge of moisture supporting spotty thunderstorm development will move in, which will crank up our dewpoints up into the 70s as we go throughout the night. This will allow for low temperatures only in the mid 70s for North Georgia with upper 60s expected in the mountains. This cold front is misleading, as its passage will not make us inherently cooler tomorrow. It will bring in colder and drier air, which will cause the dewpoints to fall off a cliff, back into the lower 60s and upper 50s for most of our area. Because drier air is easier to heat up than moist air, the intense Georgia sun will heat us up to similar high temperatures tomorrow, with highs in the upper 90s. Heat Indexes will most likely not exceed 100 degrees tomorrow as they did this weekend due to the air being drier, but will slowly increase as we make our way throughout this week. Widespread triple digit heat indexes will be possible midweek due to the return of moisture starting Wednesday.

Based on the latest model guidance, high temperatures will persist in the upper 90s well into next weekend, with most models forecasting triple digit temperatures midweek. A cold front is expected to move in sometime Wednesday which could shake up the temperatures on the tail end of this week. Model guidance does have a storm system moving through North Georgia starting Wednesday, but highest precipitation totals seem to be in extreme Northwest Georgia near half an inch, with little to none everywhere else in our region. This will most likely change, so stay updated anyway you can for your plans on Wednesday.

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