Thursday 10:45 a.m.
This video shows the forecast from today through Christmas Day.
Southwesterly flow from the Gulf to southern New England will last four days. In most areas that have snow, only the grimy hills of residue in parking lots will be the last monuments attesting to the recent weather pattern. A relatively weak low pressure area will move through the Great Lakes then to northern New England to establish the boundary separating truly mild air from chilly air to the north.
A second storm developing in the southern Plains Saturday will move to eastern Canada by Monday night. This storm may cause heavy snow from parts of Kansas to central Wisconsin. On the east side of the storm, violent thunderstorms can erupt, and substantial rain will affect the Ohio Valley and eastern Great Lakes. Temperatures will reach at least the 60s this weekend all the way to and perhaps past New York City. However, from extreme northern New England into adjacent Canada, expect heavy snow and/or ice.
Some of you have submitted weather photos and graphics that we really enjoy. One person with a keen eye for how to visualize weather and climate events is Ralph Fato of Connecticut, who graciously allowed me to use this graphic about snowfall.
Labor Day is a week from Monday. The computer model used here, the GFS ensemble mean, suggests the weather will favor outdoor late summer activities across the Great Lakes and Northeast:
In response to heating at ground level and a weak cold front approaching from the west, showers and locally strong thunderstorms should develop across northern Ohio this afternoon.
... much greater interest is being generated on threats and rumors about tropical storms. It is worthwhile to read Dan Kottlowski's authoritative reports on this. Here is a copy of his map from this morning:
The tropical Atlantic shows signs of life in the storm development department. Dan Kottlowski's expert discussion suggests the third storm (which could be Hermine) of current concern is one that could head to the Bahamas, Florida, the Gulf or ???
A large high pressure area centered just south of Chicago will furnish a northwesterly of pleasantly cool and dry air to the eastern Great Lakes and all of the Northeast today into Tuesday.
As the trough moves through each locality, warm humid weather will be followed by showers and thunderstorms, then cooler an drier air will arrive