The low pressure system that produced a wintry mix around here on Monday and Tuesday has pushed away to our northeast and an Arctic cold front will arrive here late this afternoon from our northwest. The arrival of this Arctic frontal system will be accompanied by strong wind gusts of up to 40 mph, scattered snow showers, and perhaps even an isolated heavy snow squall or two. It’ll stay windy tonight and on Thursday as well and it’ll turn sharply colder with some of the lowest wind chill values and temperatures of the season so far in the Mid-Atlantic/NE US. The cold becomes less harsh at week’s end, but it’ll remain colder-than-normal going into the upcoming weekend.
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The low pressure system that resulted in a wintry mix of precipitation in the Mid-Atlantic/NE US over the past 24 hours or so will reach a position off the New England coastline by later today. This system will drag a cold front through the I-95 corridor by early tonight and winds will pick up as a moderately cold air mass moves into the area. Watch for icy spots later tonight as temperatures drop into the 20’s in most areas and there may still be some wet roadways. Another front will arrive in the I-95 corridor tomorrow afternoon and this front will represent the leading edge of an Arctic air mass. The arrival of the Arctic frontal system on Wednesday afternoon will be accompanied by strong wind gusts, scattered snow showers, and perhaps an isolated snow squall or two. It’ll stay windy tomorrow night and on Thursday and it’ll turn sharply colder with some of the lowest wind chill values and temperatures of the season so far in the Mid-Atlantic/NE US.
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Low pressure has moved nearby in the overnight hours and there will be occasional rain today that can still freeze on some untreated surfaces during the early morning hours in suburban locations. A strong cold front will push through the region early tonight and winds will become gusty behind it and it'll stay moderately cold overnight and on Wednesday. However, an even colder air mass will charge into the region late tomorrow after the passage of an Arctic cold frontal system. That system can bring some snow shower activity to the area later tomorrow and then it'll turn windy and sharply colder tomorrow night and Thursday with the coldest wind chills (and temperatures) of the season so far. Some moderation in temperatures will return by the end of the week.
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There will be two different parts to the current winter weather event with phase one already well underway and phase two coming from later today through Tuesday morning. Phase one featured some accumulating snow south of the PA/MD border earlier today and has had very limited precipitation so far north of the Mason-Dixon Line. Phase two will involve heavier precipitation amounts from later today into tomorrow morning as low pressure heads towards the region from the Lower Mississippi Valley. This second phase will generally feature ‘plain’ rain across the immediate DC metro region, but icing will be a big concern across much of PA, northern NJ and NYC where temperatures will hover around the freezing mark throughout the night as precipitation intensities pick up.
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Low pressure will intensify today over the Lower Mississippi Valley with a cold air mass in place across the Mid-Atlantic and NE US. There will be two different phases during this event with light, spotty snow for much of today and then heavier precipitation is likely late today and tonight and icing is the main concern for this round. Accumulations of snow today will be on the light side, but watch for slick spots on the roads in any heavier burst. With temperatures hovering near freezing tonight, icing will become the main concern; especially, across the northern and western suburbs and untreated roads can get quite slick. Precipitation continues on Tuesday mainly in the form of rain, but there can still be pockets of freezing rain and snow and sleet can mix in at times. It'll stay cold behind the storm on Tuesday night and Wednesday and then an even colder air mass will arrive for Thursday.
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One storm system continues to impact the Mid-Atlantic/NE US today with brisk NW winds and another one will impact the same area from Monday into Tuesday. The next storm will intensify over the Lower Mississippi Valley early Monday and it will take a track across the central Appalachians and to the southern New England coast by Tuesday afternoon. As the storm intensifies on Monday, it will generate a west-to-east swath of precipitation that will push into the Mid-Atlantic region during the morning or mid-day hours on Monday. The air is likely to be cold enough for a period of snow and/or ice at the onset and there are likely to be some small accumulations before any changeover to rain; especially, from the northern and western suburbs of DC to areas near and north of the PA/MD border. The precipitation will intensify on Monday night and with temperatures hovering near freezing north of the PA/MD border, a significant buildup of ice is on the table.
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One storm system continues to impact the Mid-Atlantic/NE US today and another one will impact the same area from Monday into Tuesday. The next storm will intensify over the Lower Mississippi Valley early Monday and it will take a track to the Mid-Atlantic coastline by Tuesday afternoon. As the storm intensifies on Monday, it will generate a west-to-east swath of precipitation that will push into the Mid-Atlantic region during the morning or mid-day hours on Monday. The air is likely to be cold enough for a period of snow and/or ice at the onset and there are likely to be some accumulations before any changeover to rain; especially, from the northern and western suburbs of DC to areas near and north of the PA/MD border.
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There will be two storms to deal with in the Mid-Atlantic/NE US over the next few days with the first storm already impacting parts of the Mid-Atlantic region and another storm will impact the same area from Monday into Tuesday. The initial storm is going to be predominately a ‘plain’ rain event in the I-95 corridor and some of it will become heavy at times, but there are a few pockets of freezing rain at this hour in areas well to the north and west of Route I-95. Patchy fog may form as well in the overnight hours as the in flux of milder air moves over still cold grounds. The departure of this initial storm will result in an influx of another cold air mass at the end of the weekend and this could set the stage for some snow and/or ice on Monday at the onset of the next storm; especially, in areas north of the PA/MD border.
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Low pressure will intensify over the southeast US today and then ride up along the Atlantic seaboard tonight and Saturday. There will be some rain today out ahead of the main system and there is the chance for some icing at the onset in suburban locations to the north and west of Philly. By tonight, enough milder air should arrive for ‘plain’ rain and the rain can come down hard at times into the day on Saturday. Patchy fog may form as well in the overnight hours as the in flux of milder air moves over still cold grounds. High pressure will return for the second half of the weekend, but it’ll be quite breezy and cold on Sunday. Another storm is likely to impact the region from Monday into Tuesday and this one could have enough cold air around at the onset for a period of snow and/or ice before a likely changeover to 'plain' rain.
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There will be two storms to deal with in the Mid-Atlantic/NE US in coming days with the first storm impacting this area from Friday into Saturday and the second storm Monday into Tuesday. The initial storm will be predominately a plain rain event; however, there can be some icing at the onset early tomorrow; especially, south of the PA/MD border include the N/W suburbs of DC. By late tomorrow, enough milder air will arrive for plain rain to fall in the DC-to-Philly-NYC corridor and this can become a soaking rain event from Friday night into Saturday. The departure of the first storm will result in an influx of another cold air mass at the end of the weekend and this could set the stage for some snow and/or ice later Monday as the next storm system closes in on the area.
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