1930:00z
UNISYS Water Vapor Satellite of the USA, Southern Canada and Northern Mexico (click title for 12 hour loop - thank you)
Looks like there is going to be some trouble. Hot and cold, when they meet all sorts of stuff happens.
The hammer-like appearance in the upper troposphere is due to a 'piling up' of air. The air came over the continent faster than it moved off into the Atlantic. There is a large air mass just offshore of North America and it is causing this to happen.
These images are about an hour old. The system in over the Atlantic received a huge hot, wet air mass from the tropics and it is probably heading for the UK and Europe.
There is probably going to be some excitement over the next 24 hours in the USA.
