Saturday has been a rather quiet day across the country. The big story for this Saturday has been the cold air across the central US that would be abnormal for the middle of winter. Temperatures as south as Texas are in the 10's while many areas in states along the Canadian border did not even crack -10 F today.
Today we'll take a look at the Water Vapor to look at where all the moisture in the atmosphere is situated.
A defining pattern of flow can be seen here from southwest to northeast. This pattern will continue as Low pressure will surge along the Gulf coast and up the eastern seaboard to finish off the weekend.
GFS model output for 12-7-13 0900 UTC
By early Monday, there will be 2 centers of low pressure, one in the Great Lakes region, the other just off the Mid-Atlantic coast. The secondary low will produce the bulk of the moisture that will range from snow showers late Sunday, to a mix with sleet & freezing rain in many areas of the mid-atlantic states overnight into Monday. Along the interior of this region, more snow is expected with colder air but accumulations are still expected to be rather light, an inch at most for many areas... The main concern will not be snow accumulation but rather the amount of mixed precipitation that falls as sleet and freezing rain cause even more problems. Closer to the coast, rainfall is expected most of Monday and will erase the aftermath from the Sunday evening event.
Much more will be specifically known tomorrow morning in terms of how spread out the mixed precipitation will be so check back for Mike Merin's discussion tomorrow.
- JL
Much more will be specifically known tomorrow morning in terms of how spread out the mixed precipitation will be so check back for Mike Merin's discussion tomorrow.
- JL
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