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Hot/humid and mainly rain-free Independence Weekend

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Fireworks Forecast

Mostly sunny skies Sunday with highs around 91. If showers develop in the afternoon heat, they will be very limited a very isolated. A few more isolated afternoon showers and storms will be possible Monday and Tuesday. Heat indices by the middle of the week will likely break into the triple digits.

Right now our best chance for rain looks to be on Thursday due to an upper-level disturbance.

My main concern will be the building heat and humidity during the second half of the week and stretching through next week. The jet stream is way to the north, blocking any cooler/colder air. An upper-level high-pressure system will be building and strengthening from the southern Rockies to the Midwest. This will promote sinking air, as high pressure is denser. As air sinks, it warms, and under the high-pressure system, it will be trapped. Sinking air also limits thunderstorm activity. We will be watching for any shortwave troughs, upper-level disturbances in the jet stream, that would bring thunderstorms and a slight relief to the heat. For now, we are expecting highs in the 90s, but factoring in the abundant moisture the heat index could be much higher. Excessive heat may be of a concern depending on the strength of the ridge.

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Chelsea Smith

Meteorologist Chelsea Smith is part of the WGEM Storm Track Weather team.

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