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Weather Alert Day: Extreme heat continues through Tuesday

The ABC 17 Stormtrack Weather Team has issued a Weather Alert Day through Tuesday as dangerous heat has begun to fully take over the region.

An Extreme Heat Warning is in place for Sunday and Monday, and although not in the warning timeframe, dangerous heat will still be expected Tuesday.

Upper high pressure has fully taken over, and with this comes stronger southerly flow. This will continue to advect a hot, humid airmass into the area, driving up heat index values to near 110+ by Sunday afternoon.

With dewpoints sitting in the middle to upper 70s on Monday, paired with the fact that ambient air temperatures will be getting into the mid to upper 90s, heat index values will easily reach into the 105-110 degree range, but some are more than likely to exceed that value. On Tuesday, a cold front will gradually slide through the area, knocking dewpoints into the low 70s and keeping air temperatures in the low 90s, but this will still be enough to reach 100-105 feels-like temperatures by the afternoon hours.

Remember to stay hydrated with plenty of water and electrolyte drinks if you do have to spend longer periods of time outside. In these conditions, all age groups can experience heat-related illnesses and heat exhaustion. Take breaks indoors and make sure your pets have a cool place to rest, along with plenty of water. Limit their walks to around dawn or dusk to keep them safe in these conditions.

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Jessica Hafner

Chief Meteorologist Jessica Hafner returned to ABC 17 News in 2019 following a stint as a meteorologist and traffic reporter in St. Louis. She is a 2012 graduate of Northern Illinois University and holds the AMS Certified Broadcast Meteorologist designation.

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