1230.18z
UNISYS north and east hemispheric water vapor satellite (click here for 12 hour loop)
The next phenomena is noted west of Alaska.
There is a very large vortex, but, it is more than a vortex. There is a hemisphere roll cloud from my assessment. Roll clouds are sometimes stated to be alien invasions, but, they aren't at all.
Roll clouds and shelf clouds fall into the same category, arcus clouds. Roll clouds form because of an outflow of cold air. It makes sense this extra large phenomena would manifest out of Arctic air coming down from the Arctic circle. There is more than sufficient cold air for this to manifest. It is not over Alaska, but, over the Bering Sea and the north Pacific.
To have a hemispheric roll cloud is strange, but, to have one feed by dense water vapor is more than curious (dense white area).
To the left is radar of the phenomena via Accuweather radar (click here)
This is an extremely rare phenomena, but, I have seen it once before in far less dynamics in 2016.
1630.18z
UNISYS west and north hemisphere water vapor satellite (click here for 12 hour loop)
Not to ignore the small phenomena. The east Pacific storms rolling over the continent to build into storms has a diminished amount of water vapor to produce those storms. So, while Matthew is growing and moving the tropical storms may abate for a day or so.
There is also a circulation center developing directly west and off shore of Oregon and Washington state. It is feeding off the water vapor that is also a part of the roll cloud 'system.'
This vortex is nearly the same latitude of the land-based hurricane over Lake Michigan that is now migrating northwest.
There are two offshore circulation centers off the east coast, east of New Jersey and east of the Bahamas. These circulation centers are being somewhat deprived of water vapor by the land based hurricane/tropical storm over Lake Michigan. These offshore systems most probably will not effect land, but, are in oscillation with the Lake Michigan Tropical Storm (hurricane).
Hurricane Matthew is a huge storm. It is so WET with water vapor it has a trail behind it reaching back to the ITCZ. It is that reach full of fuel (water vapor) that concerns me of Matthew's potential. This hurricane is already a Cat Two storm and growing. The central pressures are dropping like a rock and the potential for a very high velocity storm exists due to it's rich water vapor content.
