10/18 – Rob Knight’s “Moderating Temperatures” Afternoon Forecast

Weak high-pressure will track across the Mississippi Valley today and Tuesday. This will be the start of moderating temperatures. Highs to remain below normal this afternoon, reaching climatological normal tomorrow. Dew-points will be back in the 60s by the end of the day Tuesday, leading to warmer overnight temperatures Wednesday morning. While this occurs, a few coastal showers may begin to develop late in the day. An upper-level disturbance centered near the Great Lakes, will draw deeper moisture northward across the area. Shower and a few thunderstorms will develop on Wednesday.

A surface cold front will begin to move through the area from Thursday afternoon into Thursday evening. Sufficient moisture in place will support scattered shower and thunderstorm development into the afternoon hours. The front will push east of the area Thursday night into Friday morning, as the best chance for showers and thunderstorm activity shifts into the coastal waters over this time frame. The atmosphere will turn increasingly stable with limited cloud development for Saturday and Sunday. Significant cold air advection is not expected in the wake of the front, and temperatures should be near average through the weekend.

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