Interesting and complex forecast today and tonight.
We have a frontal boundary that is currently draped from roughly Charlotte to RDU at 9am. That front should very slowly move northward through this evening. Temps are running in the low to mid 50s in the Triad to close to 60 in the Charlotte area to the mid 60s around RDU.
There is a big batch of rain and storms in Georgia, Alabama, and the Florida Panhandle that is lifting northeastward. A mesoscale convective vortex (MCV) is evident near the Alabama-Georgia line northeast of Troy. This is a similar feature to the one that developed yesterday and spawned tornadoes in eastern NC.
This batch of rain and embedded thunderstorms will push into the state later this morning and early this afternoon. The airmass is fairly stable in the Triad and Charlotte zones, but it gets a bit more unstable the farther east you go in the state. So as this first wave of activity moves through, I think the severe weather threat for the Charlotte and Triad zones is relatively low. From RDU and point eastward, you will again have to be on the lookout for some severe weather in the slightly more unstable air.
After that wave pushes through, the GFS really surges instibility into the western and central Piedmont this evening, especially in the 7pm to midnight timeframe. In fact, the severe weather indicies are pretty impressive during that time frame on the 6z GFS for CLT and the Triad. However, the NAM is not as unstable.
For the Charlotte and Triad zones, it appears to me the best opportunity for severe weather will run from roughly 5pm this evening into the predawn hours Sunday morning. It looks like a pretty mean line of storms could form and race through the area this evening into tonight. Damaging winds would likely be the biggest threat, but isolated tornadoes and large hail would also be possible if the airmass destatilizes enough. The chance of severe weather before this evening in CLT and GSO is not zero, but I think the greatest chances will be this evening.
Some locally heavy rain amounts are also possible, and some flash flooding issues could crop up.
Also, the ground is already saturated in many spots. With those wet ground conditions, it will be easier than normal for trees to topple. So, please don't take severe thunderstorm warnings lightly today and tonight.
Everyone in the state needs to have a reliable way of hearing watches and warnings if and when they are issued. The best way is a NOAA weather radio. And of course, keep it tuned to News 14 Carolina on television....we will keep you completely up to date and will be live on the air as often and as long as necessary.
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