Friday Morning- Warm and Humid for Now, Tracking Isaac
Temperatures to start off Friday have been a few degrees warmer generally than at this point yesterday; the dewpoints are slightly higher as well. This is setting the stage for a seasonably warm and somewhat muggy day.
Scattered cumulus clouds will likely develop during the heat of the afternoon and a few showers cannot be ruled out in eastern portions of the Tennessee Valley thanks in part to a mid-level low to our southeast, but most will just see sunny skies with scattered fair weather clouds.
This benign weather pattern will continue into the first part of next week, but things may change quickly around mid-week thanks to Tropical Storm Isaac, currently moving slowly west through the Caribbean Sea south of Hispaniola.
It currently lacks the organization to strengthen rapidly despite favorable environmental conditions. It will be further disrupted by the mountainous terrain of Eastern Cuba but could re-intensify as it moves over the warm waters over the Gulf of Mexico.
The current official National Hurricane Center track has Isaac making landfall as a category 1 hurricane Wednesday morning, but you are encouraged to not focus on the forecast track itself, but the wide cone of uncertainty indicating the possible scenarios that are all about equally likely.
Needless to say, uncertainty regarding the strength, timing, and location of this storm is very high, and the forecast will likely be modified, possibly drastically, as forecast data becomes more reliable.
As far as impacts to the Tennessee Valley, it is there is a growing model consensus that we will see some increased rain chances sometime during the middle of next week as a result of the remnants moving through the region.