Cutoff H5 low pressure passing across the TN valley and southern Appalachians today/tonight. H5 cold pool working SE across the northern portion of the JAX CWA (SE Georgia) with temps down to -11C through this afternoon into the evening, as noted off the 12Z GFS model.  Inverted trough along the SE U.S. coast with good low level SE wind flow allowing increasing LL moisture to work inland.  Already noting convection has already begun across SE GA and along the GA/FL border at 18Z, where one would expect to see this considering surface and upper level pattern.

17Z HRRR model also showing discrete cells and clusters developing across SE and S central GA into NE FL during the afternoon.

Both models showing cold front moving SE into northern SC and GA this evening/tonight, while moisture continues to feed NW.  Will see good low level moisture convergence mainly from about Atkinson county eastward to Glynn county.  Could see very heavy downpours with some thunderstorms, along with the possibility of strong winds and hail.

CoonieCatEye