Thursday, 9:30 a.m.
In the video, we look at prospects for the coming weekend and early next week in the Northeast and Great Lakes. Also, we visit the latest version of the forecast for 2 p.m. on Oct. 10. You may recall that we looked at this date on the GFS model early this week and saw what appeared to be a heavy wet snowfall underway in central and northern Pennsylvania. If you don't recall seeing that map, let me say this: we looked at this date (Oct. 10) on the GFS model early this week and saw what appeared to be a heavy wet snowfall underway in central and northern Pennsylvania.
One feature that will affect the weekend weather will be a strengthening trough aloft that heads for the eastern Great Lakes. It will trigger showers, perhaps some thunderstorms and even waterspouts over the Great Lakes as it moves through. This prog map shows where it could be early Sunday morning:
More than 110,000 lightning strikes occurred in the northeast third of the nation in the 24 hours ending at 11 a.m. EDT today (June 13).
This map shows the low pressure at the western edge. The isobars help define the location of the frontal boundary between the hot and cool air masses.
This map shows the area that could have damaging thunderstorms tomorrow and tomorrow night.
The Northeast regional radar at 10 AM showed a large area affected by showers and thunderstorms:
Whereas Andrea was centered in eastern South Carolina at 8 a.m., this satellite water vapor image shows the greatest concentration of moisture is well northeast of the surface circulation center
Quite a few models are in use, and this map shows there is widespread agreement on where the center of this storm is going.