Friends breakdown of storm, who is a meteorologist focused on stormchasing and hurricanes in particular. works on the ops side of the planes who drop the sonar drones through the storm to take measurements.
HURRICANE FLORENCE:
Overnight we saw the dense convection of Florence on satellite spread out further and further from the storm as it worked out the last of its dry air and restructured its self. It was also able to shed its rainbands and looks much more annular in structure. It, however, is not quite an annular storm and still has a ragged looking eye in the center. On the IR loop of the hurricane, you can see it is still having trouble filling in deep convection on its south side (lack of reds beyond the eyewall). I am not sure why it is still having trouble with this as there is little in the way of dry air or shear to prevent this.
Yesterday around 5pm the rapid intensification of Florence halted and microwave imaging of the storm began to suggest this was because Florence was starting to undergo an eyewall replacement cycle. This would be confirmed overnight as Florence actually lost some strength and its winds fell to 130 mph, but that still makes it a category 4 storm. Looking at the microwave images this morning and you can clearly see two eyewalls in the start of the loop, and by the end, you have just the larger outer eyewall still present. Pairing that with the ragged look of the eye in the IR scans and I would not be surprised to see the storm start to gain strength again as it clears out some of the last remaining clouds and convection in its now larger eye and we see it take on a look more like Harvey had last year as it finally completes its transaction to annular.
As noted in a previous post of mine the GFS is a bit out to lunch with the storm and I favor the right side ECMWF's solutions. This would put Florence making landfall overnight on Thursday as a category 4 storm with ~140mph winds near or just east of Wilmington, NC. With it will come historic storm surges up to 20ft in places and waves up to 30ft.
The national National Hurricane Center has issued a hurricane watch from Virginia Beach all the way down to almost the Georgia/South Carolina border. If you live anywhere that there is a VOLUNTARY evacuation, even if the cone on the NHC site is not over you, even if your local weatherman on TV says not to worry, EVACUATE TODAY! This storm is still unpredictable and some models show it will make landfall anywhere from Savannah, GA to OBX, NC. The dangerous effects of this storm along the coast will extend out fairly far from the eye of the storm and the inland flooding will be immense. If you live inland in a 100 or 500 year flood plain, especially if you are on the right side of the eye's path, you should consider leaving today for higher ground.
The tropical storm conditions will likely start at 8am local time on Thursday on the coast but could arrive as early as 8pm TUESDAY.
Right now my plan is to head to Wilmington but I may end up elsewhere depending on where the eye will make landfall. After NOON central US time tomorrow, I will likely not be able to post much if at all so do not come back to this thread then with questions for me or to see my thoughts as I will be in full chase mode then.
Stay safe everyone, do not mess around with this storm. It WILL be worse than Hugo was.