To give you an idea of where this storm is coming from, and the huge portion of the country that it is affecting, check out the map below (taken at noon today) showing the forecast track of the low pressure system responsible for the snow and the huge area covered by winter weather watches, warnings, and advisories (color-filled counties from NM/CO all the way to AL):
The next map shows the probabilities of a 4"+ snowfall from 6am Wednesday to 6am Thursday. This shows the axis of heaviest snow from southeast OK through AR to northwest MS. Memphis is right on the edge of a "moderate probability" (40%) of 4" of snow. I expect some place in central AR, near or south of Little Rock, is going to see a heavy snow event of 8" or more!
|Probabilities of a 4" snow event from the National Weather Service (click image for larger image)|
|Tuesday 6am NAM computer model output showing 2-4" over Memphis (click image for larger view)|
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