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.
It is not going to snow any time soon, but in any type of weather the flag is a symbol of freedom. This holiday weekend we celebrate the contributions of those who were there to defend the freedoms we enjoy in these times.
Once again, the rain will miss much of central and northern New England. The region has been in a dry spell, as evidenced by its appearance on this U.S Drought Monitor map.
A cold front crossed the Northeast yesterday. Looking at these maps, which show morning temperatures yesterday versus readings around the same time today, we can see that the biggest drop in temperatures occurred around the lower Great Lakes.
Much of eastern New England has been in a dry spell ever since the last snow melted. More dry weather is on the way from tomorrow through the end of the week. This radar image taken at mid-morning Tuesday is peppered with showers.
Cooling will also occur from Wisconsin into western Michigan as a cold front moves eastward. This map shows the arrangement of fronts and the area of relatively warm air between the two cool air masses:
The worst storms later in the weekend will precede the cold front that brings cooler air back into the Northeast next week. This map shows the threat as outlined by the NWS Storm Prediction Center: