A weakening band of lake effect snow flurries and showers will come to an end early this morning across the Capital Region. A cold front was stalling to our north, near the Canadian border, while high pressure was pushing northward from the southern Appalachians and Tennessee Valley.
High pressure will keep the frontal system at bay today as ripples of low pressure ride along the stalling boundary to our north. Overnight tonight, the high pressure area retreats eastward, over the Carolina coastline, allowing the front to sag southward toward the area. Colder air will be ushered in behind this front by Friday morning as Canadian high pressure builds in and a more northerly component to the low level wind field kicks in.
The weekend looks unsettled at best. This is due to the fact that the cold front mentioned in the proceeding paragraphs is forecast to stall to our south Friday night. A wave of low pressure looks to form along the boundary, over Illinois, causing the front to lift back northward toward the region, as a warm front, during the day on Saturday bringing clouds and a threat for rain and/or snow showers.
Warmer air invades the region for the second half of the weekend and the start of the new work week. Los of clouds are forecast for this period as well, along with chances for rain showers, as temperatures rise to between 5 to 10 degrees above seasonal averages.
…Below is the official forecast for the Capital Region and vicinity…
Thursday: Intervals of clouds and sunshine and breezy. High near 40. Southwest winds 10-15 MPH.
Tonight: Partly cloudy. Low 25-30. Light and variable winds.
Friday: Intervals of clouds and sunshine. High near 35. Light northerly winds.
Friday Night: Increasing clouds. Lows 25-30. Light east winds.
Saturday: Cloudy with a chance of rain and/or snow showers. High 35-40. Light east winds. Chance of precipitation is 40 percent.
Sunday: Cloudy with a 40 percent chance of rain showers. High near 50 and low near 35.
Monday: More clouds than sunshine with a 40 percent of rain showers. Mild. High near 50 and low near 40.
Tuesday: More clouds than sunshine with a 30 percent of rain showers. Mild. High near 55 and low near 40.
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