Advisory canceled, but snow showers continue

November 21, 9:11 AMBaltimore Weather ExaminerJustin Berk

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The burst of snow can drop a coating up to 1-2 inches of snow.

A Winter Weather Advisory was posted just as our show ended at 7am.  I updated this image, and wanted to add a little more now.  Then 9am comes around and the advisory was canceled.  What is the National Weather Service doing?  I don't make warnings, just pass them on...but a little more discretion should be used before people like me have to make the late adjustments.  The band of snow that moved in, was sticking.  That had allowed it to stick on some of the roads, besides the grass.  A few accidents were reported on I-83 in The Hereford Zone and York County.  This burstmay drop a quick inch or so, and make the ground white.  I still think the original advisory was a bit premature...now we are back to normal.

This morning's maps proves the importance of looking at upper level data in the winter.  All it takes is strong wind, and a little spin.  Oh, add cold air, and there you have snow.

Above is the morning map, showing the flare up of snow in southeastern Virginia, and North Carolina.  The cold north-westerly winds at the surface sliding across the Great Lakes dropped the snow showers to our north and west.  So we got the squeeze play with only a few flurries... but we will share in the fun this afternoon.

Here is this morning's upper level map and how that jet streak corresponds to the snow band in VA and NC.

That is why I have confidence in the build up of more widespread snow showers this afternoon.  In an effort to keep this post from getting too long, and while I wait for the morning computer model update, I will share the update on my website mid morning.