http://www.wetterzentrale.de/topkarten/fsfaxsem.html shows a low in
the west just off Cape Hatteras. The prognosis is that it will build
to 1002 mb by tomorrow. But it will be in between two Highs, one of
which is over Greenland.
Also it looks to be joining the Low already through the passage so it
should be deepening.
If it goes to 980 mb the likelihood is that the resulting ferrets
will accompany a tornado cell over North America.
If the cell is in a place that has a lot of water underground and the
rosk isn't that far from the surface, there is every likelihood that
the place selected will also get a nurthquake.
Interesting too is that the rush to get people moved from that
eruption in Iceland was not so much where the erution was but the fact
the weather was obscuring things.
No doubt the same is true for volcanoes everywhere. Something to do
with the weather. I know not what.