Thursday 9 a.m.
... Lightning and thunder in a snow band over New York state's Tug Hill Plateau.
... 7 inches of snow at Guys Mills, Crawford County, Pa.
... Tree limbs down and power outages in western Michigan.
... First snow of the season in the West Virginia mountains (see picture below).
Those reports are dramatic before Halloween, but most of the Northeast is simply having chilly and dry weather. This video explains why and what will happen this weekend.
This was the scene at Canaan Valley Ski Area this morning:
This map shows a projection from last night's European model. It shows an huge temperature difference in a short distance across northern and central New England.
A number 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.
Snowfall amounts yesterday were low from Philadelphia to New York City. Accumulations increased toward the north and northeast.
This map shows the NAM's projection for this Friday night. The isobaric pattern suggests there is a southwesterly flow of mild air from the Gulf states to the Middle Atlantic region. Farther north, we see evidence of the frontal boundary that separates the mild air from chillier air.
A new area of snow now over southern Minnesota should expand southeastward to reach Chicago this afternoon, streak to Pittsburgh this evening, then reach the Philadelphia/New York City area late tonight or early tomorrow morning. This map shows a low pressure area over Missouri.
This map shows expected accumulations.