We should see excellent radiational cooling tonight as high pressure movesoverhead, llowing for nearly calm winds, dry air and crystal clear skies. Radiational cooling is the process by which warmer air near the surface/ground radiates into the higher parts of the atmosphere yielding a net cooling below. In our case, with dew points expected to be in the upper 20s to lower 30s, we should see temperatures dropping to the mid-30s by morning. There may be some patchy frost around the dawn hour too.
Milder weather and more clouds should move in after tomorrow with another warm and unsettled weekend on tap. As Dave indicated, this weekend won’t be a wash-out, but there will be the risk of storms for Sunday. There may be a strong, or severe weather risk Sunday, but it’s too early to tell weather this will develop over Louisiana or occur farther to the east.
Highs this weekend will warm well into the 70s, but should cool again nicely Monday behind the next frontal system.
Rob Perillo