The day starts off with temperatures near the freezing mark in many spots so watch out for black ice on all road surfaces that appear wet. A frontal system will approach the region today and it can produce a couple of rain and/or snow showers and the winds will become very noticeable later in the day with gusts past 35 mph or so. High pressure will take control on Wednesday and under mostly sunny skies, afternoon temperatures will climb to a much more comfortable 50 degrees. A cold front passes through on Wednesday night and it’ll turn colder again for the last couple days of the work week.
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A bit of a tricky situation today associated with a strong frontal system as there is likely to be a burst of heavy snow possibly mixed with sleet that can result in some rapid accumulations before milder air pushes in to change the precipitation to plain rain. The most likely accumulation amount is 1-3 inches from mid-to-late morning into early-to-mid afternoon and isolated higher amounts are possible. A southerly flow on the back side of the high will boost late afternoon temperatures to above freezing and any snow that falls should change to plain rain across the region from south-to-north. A clipper system to the northwest on Tuesday could produce a snow shower around here and the rest of the week looks rather quiet.
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The new work week will begin with a bit of a tricky situation as there is likely to be a quick burst of heavy snow in the DC-to-Philly-to-NYC corridor possibly mixed with sleet at times - all as a strong cold frontal system slides to the east. Snow, possibly mixed with sleet, should arrive by the mid-morning hours on Monday in DC and in the mid-to-late morning hours across the Philly and NYC metro regions. Rapid accumulations are likely before a changeover to plain rain takes place later in the afternoon.
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In another long duration winter storm event, snow will tend to hang on today across eastern Pennsylvania, New Jersey and New York City and there can be small accumulations adding onto yesterday’s totals. A stretched-out wave of energy aloft is grinding its way to the east coast and it is generating enough lift in the atmosphere to produce snow in this part of the northern Mid-Atlantic region. High pressure takes back control this weekend, but it’ll remain on the cold side and the breeze will pick up noticeably.
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The day will start off with freezing drizzle in most areas and as another low pressure area pushes northeast along a frontal system, snow and sleet will break out from later this morning into the afternoon. Additional accumulations of a coating to an inch or two are possible before the system winds down later in the day. High pressure takes over for the weekend, but then another low pressure area can bring us some snow or snow and rain combination on Monday.
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The latest winter storm continues to pound away at the Mid-Atlantic with lots of snow north of the Pennsylvania/Maryland border and lots of icing to the south of there. There have been intense snow bands in the region from southeastern Pennsylvania to central New Jersey during the past few hours resulting in a quick piling up of snow to as much as 8 inches in some spots. The precipitation will tend to slacken off this afternoon, but this latest winter storm will turn into another relatively long duration event with redevelopment of the precipitation by tonight and there can be some impacts into the latter part of the day on Friday.
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Snow has overspread the region with our latest winter storm and it will be heavy at times with quick accumulations. The snow can mix with sleet later in the morning and the precipitation may actually lighten up for a brief time later in the day. Precipitation will then re-develop later tonight likely as a wintry mix and it can actually change back to all snow on Friday before precipitation winds down in what will turn out to be another rather long duration event. Snowfall accumulation estimates of 4-8 inches for the Philly metro region with isolated higher amounts N/W and there can be an icy buildup during the second half of the storm.
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A significant winter storm will impact the Mid-Atlantic region on Thursday and Thursday night and it is likely to develop into a rather long duration event and last well into the day on Friday. Snow should break out early tomorrow morning in the DC and Philly metro areas and by the late morning hours in New York City. The snow can come down hard for a few hours beginning shortly after its arrival time in the I-95 corridor. The precipitation may slacken off for a brief time later tomorrow into early tomorrow night, but more precipitation will re-develop tomorrow night likely as a wintry mix and this can change back to all snow on Friday.
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Attention now turns to the next storm system and this one is likely to generate significant accumulating snow in the Philly metro region and some ice as well. Snow likely breaks out early tomorrow during the 4-8AM time period and it can come down hard for awhile before mixing with or changing to sleet later in the day. Accumulations of 4-8 are likely before any changeover to sleet and there can be isolated higher amounts. Snow or a mix of snow and sleet will continue tomorrow night and there can even be occasional snow, sleet and/or freezing rain well into the day on Friday as this will likely turn out to be a long duration event. This low pressure system will take a track farther to the east compared to Monday’s storm and this track will help to keep a cold air mass in place with temperatures generally at or below the freezing mark.
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With the passage of one storm system in the overnight hours, attention to those in the Mid-Atlantic region will now turn to the next storm system and this one is likely to generate significant snow and/or ice for the DC-to-Philly-to-NYC corridor with several inches on the table. The next storm will take a track farther to the east compared to last night’s system and this will help to keep in place a cold air mass that arrives in the overnight hours. This cold air mass will be anchored by strong high pressure to the north and low-level temperatures are likely to remain at or below freezing during much of the upcoming event in the immediate I-95 corridor – virtually assuring a buildup of snow and/or ice.
Elsewhere, historic and dangerous cold continues today across much of the central US. Several sites have set their all-time low temperature records and many others have experienced their lowest temperatures ever recorded in the month of February. In addition to the extreme cold, snow and ice has accumulated all the way down to the Gulf coastal region of Texas. In fact, nearly three-quarters of the US is now covered by snow which is the highest amount ever recorded since this kind of data began to be collected in 2003.
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