Spring has officially sprung and there is some quite mild weather expected during the next couple of days in much of the eastern half of the nation. There are signs, however, that point to additional cold air outbreaks into at least the first week of April from the Northern Plains to the Mid-Atlantic/Northeast US. The overall weather pattern across North America still features some high-latitude blocking over northern Canada and Greenland and this, in turn, is allowing for the transport of colder-than-normal air masses on occasion into the northern US from Canada. One of the consequences of additional cold air outbreaks is the high likelihood for additional accumulating snow events across the northern states and also the threat for severe weather outbreaks in the southern US. This pattern of normal to below-normal temperatures has been pretty commonplace during the last ten years in the months of March and April in the region from the Northern Plains to the Mid-Atlantic/Northeast US.
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High pressure pushed offshore on Tuesday and milder air has pushed into the Mid-Atlantic region as a low-level southwesterly flow formed on the backside of the anticyclone. As with most recent warm-ups, the warm up will become accompanied by shower activity beginning as early as late tonight and perhaps lasting right through much of the day on Saturday. By Saturday night, a cold front will pass through the region and drier air should follow to close out the upcoming weekend.
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High pressure over the Mid-Atlantic region will push offshore later today and this will open the door for much milder air to push into the area from the southern states. As with most recent warm-ups, the milder weather will be accompanied by an increasing chance of showers during the second half of the week. A warm front will lift north of the area on Wednesday and a residual frontal boundary zone will act as a conduit for additional waves of low pressure later in the week. As a result, it’ll stay unsettled around here with occasional showers from later tomorrow through the day on Saturday at which time a cold front should pass through the area.
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Impressive cold for this time of year in the DC metro region with back-to-back nights featuring lows well down in the 20’s. High pressure builds into the Mid-Atlantic region on Monday and then will shift offshore by mid-week. As a result, temperatures will climb towards the 60 degree mark on Tuesday and Wednesday for afternoon highs and it’ll turn even milder later in the week. The second half of the week will likely carry an off-and-on shower threat as a couple of frontal systems will impact the region.
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A cold front will close in on the area today bringing with it breezy conditions and a threat of showers. Following the frontal passage, colder air will push into the Mid-Atlantic region for the upcoming weekend with Canadian high pressure taking control. Temperatures on Saturday will be confined to near 50 degrees for highs and may do no better than the lower 40’s on Sunday despite plenty of sunshine.
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High pressure edges into the area today generating some sunshine, much less wind than recent days, and noticeably milder conditions. A cold front will approach the area on Friday bringing with it a threat of showers as we close out the work week. Following the frontal passage, colder air will push into the Mid-Atlantic region for the upcoming weekend with Canadian high pressure taking control.
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The major storm that pounded the interior Northeast US with snowfall on Tuesday and the entire northeastern quadrant of the nation with powerful winds will slowly drift out to sea today. Despite its gradual departure, winds will remain quite strong in the region today gusting up to 40 mph or so. High pressure builds into the region on Thursday and it’ll turn milder with much less wind. A cold front is likely to bring us some shower activity later Friday and colder air will follow for the weekend.
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It’ll be very windy today, tonight and Wednesday on the back side of a major storm system now over the western Atlantic Ocean. Winds can gust to 50 mph or so through tomorrow and isolated power outages are certainly on the table. In addition to the wind, this major storm system will feature snow shower activity today that will wrap around from northeast-to-southwest all the into southeastern PA and a couple of these snow showers can make their way all the way into northeastern Maryland. High pressure will take over later in the week and there will be much milder conditions for Thursday and Friday.
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Low pressure near the Outer Banks of North Carolina this morning will intensify rapidly during the next 24 hours and reach near the southern New England coastline by early Tuesday. An inverted trough will extend to the northwest of the low pressure center on Tuesday morning and this feature will rotate from northeast-to-southwest during the day. As a result, snow showers will tend to drop from northeast-to-southwest on Tuesday and are likely to reach all the way into southeastern PA and southern NJ. The heaviest snowfall from this storm is likely to end up extending from NE PA/NW NJ to the Hudson Valley region of NY State, central/western sections of Massachusetts/Connecticut and ultimately, up across northern New England. In addition to the snow, winds will become a major factor during this storm not only in the Northeast US, but also throughout the Mid-Atlantic region. Gusts of 50 mph are likely from late Monday night through Wednesday and can reach as high as 70 mph along coastal New England during the height of the storm…power outages are on the table.
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Low pressure will intensify off the Mid-Atlantic coastline today and push to the northeast reaching near southern New England by early Tuesday as a major storm system. The DC metro region will be impacted with occasional rain today into tonight and snow showers can develop as far south and west on Tuesday as the far northern suburbs of DC. The winds will become the main factor around here from this storm system with gusts to 50 mph possible from tomorrow through the day on Wednesday. High pressure will edge into the region at mid-week generating some sunshine on Wednesday and then milder conditions for the late week.
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