The polar vortex has re-established itself into a nearly circular pattern. (winds @ 10 hPa)

The polar vortex (winds @ 10 hPa) is beginning to close up & detach its circulation from the high pressure system that is sliding south down the Pacific coast.

METAPs may require a name change, given the experimental observation of its willingness to remove a leucine when it happens to be at the start of translation. #proteomics

The combination of a low pressure system centred in Michigan, a high off-shore of Maine are pumping up some wet air from the Atlantic & the Gulf of the Mad King is generating a storm in the upper Midwestern states & Southern Ontario.

The polar vortex is continuing to open up over the North Atlantic, with the counter-rotating system now centred on the northern shore of the Yukon. (winds @ 10 hPa)

As predicted, the polar vortex has opened up with a high pressure circulation appearing over Alaska. (winds at 10 hPa)