The Winter Solstice occurs at 12:11PM EST today. This marks the beginning of astrological winter across the Northern Hemisphere. It is also the day with the least amount of daylight. The good news is that the days will slowly begin to get longer from this day on until the day of the Vernal Equinox (astrological ‘spring’) when daylight and darkness share even billing.
An elongated, snake-like frontal boundary was draped from the Canadian Maritimes south and east to central Texas. Several waves of low pressure had formed along this boundary. As each wave of low pressure rides along the boundary today, periods of rain will become more common. The Capital Region will likely see the best chances for rain from this afternoon through Sunday afternoon. Rain may come down heavy at times overnight tonight and Sunday. Temperatures will be well above normal for this time of year, as the region remains on the south side of the boundary, where warmer air will be allowed to reside through the weekend.
There is the concern for flooding, especially across portions of the Adirondacks and Mohawk Valley. This is due to the expected rainfall, and warmer temperatures, leading to snow melt. With frozen / thawing ground, not much absorption of the water is expected, thus, leaving excessive runoff and/or standing water.
Fog is also a concern in areas that see rainfall. The warmer air will ride over, and interact with, the existing snowpack, to bring the potential for locally dense fog in spots especially overnight tonight and early tomorrow morning.
A cold front will approach the region Sunday evening, with a secondary cold front sweeping through overnight on Sunday, and early Monday morning. Colder air will seep southward into the region behind these frontal systems, and a cold dome of high pressure will settle southward, out of central Canada, to give the region a reminder that it is still very much winter in the Northeast.
..Below is the official forecast for the Capital Region and vicinity...
Today: Periods of rain and showers. Rain may be heavy at times later this afternoon. High 45-50. South winds 5-15 MPH. Chance of rain is 90 percent.
Tonight: Periods of rain, heavy at times. Areas of patchy dense fog possible. Low near 45. South to southeast winds 5-10 MPH. Chance of rain is 100 percent.
Sunday: Periods of rain, heavy at times. Becoming windy during the afternoon. Mild. High in the upper 50’s. Southwest winds 10-20 MPH. Chance of rain is 90 percent.
Sunday Night: A chance of showers in the evening. Otherwise, mostly cloudy. Low in the mid 40’s. West winds 5-10 MPH. Chance of rain is 40 percent.
Monday: A chance of rain showers in the morning and snow showers during the afternoon. Otherwise, mostly cloudy and breezy. Early high in the upper 40’s, with temperatures dropping into the 30’s during the day. West to northwest winds 10-20 MPH. Chance of precipitation is 30 percent.
Tuesday: Mostly sunny, windy, and colder. High near 30 and low near 10.
Wednesday: Mostly sunny and breezy. High near 25 and low near 15.
Thursday: Partly sunny with a 30 percent chance of light snow. High near 30 and low near 15.
Friday: Mostly sunny. High near 35 and low near 20.