I think we can now describe #HurricaneIAN's remnant storm centered roughly over NYC & 1000kms in diameter, as a "Gyre".
Gyre= "a broad area of slowly spinning air that rotates counterclockwise in the Nth Hemisphere."
Typically Gyres are not over land though.
Also as you can see here it is widening. Abd its eye is nearly complete.
Which raises the question: Is anarchy about to be loosed upon the world?
This is a very rapidly widening gyre - off the coast of Brazil, almost as big as the one over NYC, and one which may soon become a hurricane once it completes cyclone genesis.
It doesn't yet have a name, just a designation, but it will likely be called Julia or Karl.
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The remnants of Hurricane Ian are showing little sign of abandoning the Tri State area. This is from this morning CEST before sunrise.
And here we see #HurricaneIAN this evening. In the morning Ian had developed a distinct visible rotation at its center. And this evening this started to move south downthe coast rather than East as it has been forcasted to do for some time.
NOAA has published a remarkable tool to allow you to look at #HurricaneIAN damage in Florida and beyond.
This image shows the heart of the coverage of the satellite data - From Naples up to Venice. Imagery reveals how concentrated extreme damage is. oceanservice.noaa.gov/news/sep22/ngs…
In the long range PWAT animation in the quoted thread above you can see one possible outcome, a massive cyclone embedded in a gyre which nearly covers the entire Gulf of Mexico.
But that is still a long way off and can probably be considered a worst case scenario.
Hurricane's are not predictable at such long ranges. But large scale dynamics about atmospheric water dynamics are fairly reliable at range.
At this point the NHC remains unconvinced by Invest91L itself. And gave it just a 20% probability of formation only this morning.
The unusual, unpredictable and #ExtremeWeather of #HurricaneIAN is still continuing in the North East of the US. The remnant low has strengthened and remains parked off the Maryland coast.
This storm has now spent nearly a week over the US.
Last night I posted a fairly discursive thread looking at the Tropical Atlantic, and some threats in the long range GFS forecast - including the threat posted by the remnants of #HurricaneIan
Here we are looking in particular at the stationary low pressure center off the coast of Maryland (Top Left) in the animation above. The impacts are becoming more significant now as the remnants of #IAN - back over the Atlantic are strengthening again.