7/13 – Rob Knight’s “HOT & HUMID” Workweek Forecast

An upper level ridge is still centered over New Mexico/Arizona but with disturbances now on its east and northwest sides. The area sits on the eastern edge of the ridge with a trough on eastern remainder of the US. A weak ripple on the eastern trough has helped to maintain convection through the overnight hours along the Mississippi coast. Stifling heat continues across the region as upper 70 to lower 80 dew-points remain in place while above normal temps persist due to the upper level ridge centered west of the area. Guidance brings high temps back up into the mid/upper 90 high temps, although slightly cooler than yesterday. Those temps with similar dew-points will support 108 to maybe 118 degree heat indices. A heat advisory will be in effect for the area.

Relief from rain is looking a bit better today than previous days as models suggest the strong ridge may be starting to weaken from the upper trough coming in the Pacific Northwest and the current impulse moving through the southeast US. The trend of slight improvements in heat continues Tuesday and Wednesday as the upper ridge to the west weakens.