A heat dome across the middle of the country is bringing excessive heat usually found later in the southern months, and it could lead to damaging thunderstorms with hurricane-force wind gusts.
A version of this article originally appeared in the weekly weather newsletter, the CNN Weather Brief, which is released every Monday. You can sign up here to receive them every week and during significant storms. Period."We don't change our criteria based on the time of year," Matt Beitscher, a National Weather Service meteorologist in St. Louis, told CNN weather.
What is a derecho? 01:01They happen on the edge of heat domes historically, because the jet stream goes around the high pressure -- the level of the atmosphere where jets fly and the stream of the strongest winds are found -- up and around, which helps create instability.But at noon Monday, it was still uncertain if one will form later today.Even if it doesn't, thunderstorms capable of hurricane-force wind gusts could occur from Wisconsin down to Ohio Monday afternoon and evening.
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