The powerful storm that hit the East Coast the last two days is mostly history now, but freezing and well below temperatures have covered the Southeast this morning - from Louisiana eastward to northern Florida. The view above is of Boston - the wind report doesn't seem to fit the smoke plume on right, but a map check indicates this view is from the west, so the plume is probably sheared away from the cam.
The global models are predicting that a 500 mb short wave will break underneath the western North America ridge at mid-week, around January 10/11. This system would come off the Pacific and perhaps bring a bit more moisture with it, than have the systems coming in from the northwest the past couple of months. Something to watch and to help keep up hope for a meaningful rain here in Tucson.
The GEFS plumes from 06 UTC last night (above) are all forecasting measurable rain at TUS mid-week. At this long range amounts are all light, except for one wild outlier. The 500 mb panels (below from 00 UTC) show 4 members of the ensemble and illustrate that there is substantial variance in the forecasts of this fast-moving wave.
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