Low pressure will intensify off the Mid-Atlantic coastline today and push very slowly to the north as it encounters a blocking pattern in the atmosphere. The brunt of this winter storm will take place from later today into tonight as heavier rounds of precipitation work their way across eastern Pennsylvania and the winds will pick up in intensity as well. Any mixed precipitation this morning should change back to all snow by late morning or mid-day as colder air wraps around the intensifying storm off the Mid-Atlantic coastline and significant additional accumulations are likely. Given very strong dynamics in the upper atmosphere, there is the potential for “mesoscale” or small-scale banding later today and tonight containing brief outbursts of very heavy snow and possible rumbles of thunder. Total snow accumulations from this storm by later tomorrow can surpass a foot in the Philly metro region.
Read More
A major and complex storm system is coming to the Mid-Atlantic region and it will be a long duration event with impact into Tuesday. Indeed, this storm could turn out to be one of the all-time greats for some sections of eastern PA, upstate New Jersey, and southeastern New York. The storm will come in two phases with the first part already underway and associated with a process known as “overrunning”. The second phase of this major winter storm event will feature a very slow moving and powerful storm just off the Mid-Atlantic coastline.
Read More
The stage is set…Arctic air is in place anchored by strong high pressure to the north and a major and complex storm system is coming to the Mid-Atlantic region and it will be a long duration event with impact from Sunday into Tuesday. Accumulations of 6+ inches are possible in the DC metro region with 12+ inches possible in the Philly and NYC metro areas. The storm will come in two phases with the first part associated with a process called “overrunning” and the second phase featuring a major coastal storm. The combination of the potential heavy snow and strong winds may prompt the need for “blizzard warnings” to be issued in at least parts of the Mid-Atlantic region for this upcoming event.
Read More
Arctic air has its grip on the Mid-Atlantic region and it won’t loosen its control anytime soon. Winds will howl today out of the NW and the Arctic cold will stick around through the weekend. A long duration winter storm event will get underway on Sunday and, as a storm intensifies off the Mid-Atlantic coastline, impact can continue all the way into early Tuesday with significant snow accumulations of at least several inches on the table.
Read More
Arctic cold has gripped the Mid-Atlantic region and won’t loosen its control for awhile. Today will turn out to be the coldest day of the winter so far with a biting wind and temperatures confined to the 20’s for afternoon highs. The Arctic cold will stick around well into the upcoming weekend and attention will turn to the west as the next winter storm as it crosses the nation. That next storm system poses a threat for significant accumulating snow in the Mid-Atlantic region and it can be a long duration event with an impact here from late Sunday all the way into Tuesday.
Read More
Winds have increased markedly today as an Arctic air mass arrives in the Mid-Atlantic/Northeast US from the eastern part of Canada. Temperatures will plunge in the overnight hours and Friday promises to be the coldest day of the winter season so far with continuing biting-cold NW winds. The Arctic cold will stick around well into the upcoming weekend and attention will turn to the west as the next winter storm crosses the nation. That storm poses a threat for significant accumulating snow in the Mid-Atlantic region and it could turn out to be a long duration event with potential impact all the way from Sunday into Tuesday.
Read More
Increasingly strong N-NW winds today will signal the arrival of an Arctic blast that will halt temperatures in their tracks today and result in overnight lows in the teens and tomorrow will turn out to be the coldest day of the season so far. The Arctic cold will stick around well into the upcoming weekend in the Mid-Atlantic region and attention will turn to the west as the next winter storm crosses the nation. That next storm system poses a threat for accumulating snow in the Mid-Atlantic region from later this weekend into the early part of next week and its impact could actually extend from Sunday into Tuesday…stay tuned for more details on this upcoming and complex winter storm threat.
Read More
Yesterday’s light wintry mix in the Mid-Atlantic region has pushed off to the northeast and a look ahead includes an Arctic blast and a potential major winter storm. Increasingly strong NW winds later tomorrow will signal the arrival of an Arctic blast that will bring temperatures down to the teens by early Friday and the last day of the work week will turn out to be the coldest so far this season. The Arctic cold will stick around well into the upcoming weekend in the Mid-Atlantic region and attention here will turn to the west as the next winter storm crosses the nation. That storm poses a threat for accumulating snow in the Mid-Atlantic region beginning late in the upcoming weekend and it could turn out to be a significant and long duration event with an impact all the way into late Tuesday.
Read More
After high pressure takes control of our weather today, low pressure will intensify near the Carolina coastline late tonight and on Thursday. The pressure gradient between the high pressure system and the intensifying Carolina storm on Thursday will tighten significantly and winds will become quite noticeable around here. The increasingly strong NW winds will usher in a very cold air mass for the end of the week and it’ll stick around for much of the weekend as well. High temperatures on Friday will be confined to the 20's and overnight lows on Thursday night, Friday night and perhaps even Saturday night will be in the teens. Another storm system will cross the country this weekend and threaten the Mid-Atlantic region with snow or a snow/rain combination in the late Sunday/Monday/early Tuesday time frame. This scenario could feature an initial wave of low pressure headed to the Ohio Valley and then the formation of a secondary storm off the Mid-Atlantic coastline.
Read More
A wintry mess of snow, sleet, freezing rain, and/or plain rain continues in parts of the Mid-Atlantic region at mid-day and temperatures remain near the freezing mark in many locations. As a result, there can be slick spots this afternoon and evening on untreated surfaces in suburban locations along the I-95 corridor even as the precipitation winds down. After a drier and quieter day on Wednesday, low pressure will intensify off the Carolina coastline on Thursday and winds in the DC-to-Philly-to-NYC corridor will pick up noticeably as a very cold air mass pushes in from the northwest. The end of the week and the beginning of the weekend will indeed feature some of the coldest air yet this season and then attention will turn to the next storm threat which could bring snow by late in the weekend or the early part of next week.
Read More
