8/20 – Rob Knight’s “VERY HOT” Friday Morning Forecast

Today and Saturday, a robust high pressure system is expected to build over the region. Southerly to southeasterly surface winds will help to enhance warm air advection and moisture advection into the area. Isolated to scattered showers will be possible today and Saturday afternoons, mainly along the SW MS and coastal MS areas. Locally heavy rainfall will be possible inside of thunderstorm development over the next few days. Gusty winds (30-40 mph) and frequent lightning will also be a concern inside of thunderstorms.

However, due to the limited rainfall coverage today and Saturday, heat will be the primary concern as we move into the weekend. High temperatures during the daytime hours today and Saturday will be in the mid-90s with dew-points in the upper 70s, approaching 80 at times…southerly flow will help to keep the humidity high at the surface.

Sunday and Monday, a weak disturbance is expected to move into the area and elevate the moisture flow and rain potential. The models are still uncertain about the exact timing and strength of the boundary feature. If coverage of storms remains below 40% for a large portion of our area Sunday and Monday, heat will be a big concern. Tuesday and Wednesday, the high pressure continues to weaken and move out of the area. The boundary that has set up, based on the models, is expected to continue to linger and progress northward.

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