|Water Vapor imagery of East Pacific. The Dec. 20 system is the dark blue circle of increased|
The cutoff low you see in the water vapor image above does indicate that this system has quite a bit of energy to work with. After moving into the Southern Plains and giving them at least a fair 4 inches of snow, the system will begin to work northward along a ridge in place.
|Measure of Predictability map from NCEP Ensembles.|
Darker colors indicate more confidence by NCEP Ensembles that a certain atmospheric
feature will be present.
The second feature we see is the disturbance itself. Unlike previous runs, this run of the ensembles is in ally showing confidence that the storm will be present in a strong manner. Confidence is indeed high, with widespread 80%+ colors in the region of the proposed trough. The disturbance is characterized by the isobars taking a dip southward as seen around Texas in the image above.
|Yes, we did show this image at the beginning of the post.|
But now it's recap time.