There will be heavy rain at times today as a strong cold front heads towards the east coast and an intense jet streak passes overhead. The heavy rain will be accompanied by unseasonably mild conditions this morning and gusty winds out of the south-to-southeast just ahead of the frontal system. The rain will taper off later this afternoon and temperatures will drop sharply as the next in a series of cold shots arrives from our northwest. The next couple of days will be dominated by high pressure and there will be plenty of sunshine each day, but temperatures will be well below-normal for this time of year. Looking ahead, there are signs for a widespread brutally cold air outbreak next week that will impact the central and eastern US.
Read More
Despite the fact that it’ll turn unseasonably mild later tonight and early Thursday in much of the eastern US, the overall cold weather pattern shows no signs of slowing down. There will be another outbreak of cold air in the eastern US for the Thursday night/Friday/Saturday time period, but the coldest core of that air mass (relative-to-normal) will be centered over south-central and southeastern Canada. Next week, however, it looks like a brutally cold air mass will plunge southward right into the central US and eventually make its way to the east coast - and the coldest temperatures relative-to-normal will be in the US.
Read More
Another soaking rain event is headed to the DC-to-Philly-to-NYC corridor and heavy rain tomorrow morning will be aided by a powerful upper-level jet streak. Showers will begin this evening and then evolve into a steadier and heavier rainfall after midnight and then the rain can come down heavily at times from late tonight through the morning hours on Thursday. In addition to the heavy rainfall, winds will become an important factor late tonight and on Thursday with gusts possible past 40 mph as warmer air surges northward along the eastern seaboard. Temperatures will rise in the overnight hours perhaps peaking well into the 50’s tomorrow morning, but will then drop sharply later tomorrow afternoon following the passage of a strong cold front.
Read More
Heavy rain is on the way for the I-95 corridor in the time period from late tonight until early tomorrow afternoon. Milder air will surge northward along the eastern seaboard in the overnight hours and any evening rain activity will become steadier and heavier after midnight as temperatures slowly rise and winds pick up out of the southeast. Windy and unseasonably mild conditions will start the day on Thursday along with heavy rain at times, maybe even a rumble of thunder. Much colder air returns late tomorrow following the passage of a strong cold front and the 50's early in the day will likely transition to the 30's by late in the day. It'll be quite cold on Friday and Saturday despite plenty of sunshine each day with temperatures well below-normal for this time of year.
Read More
Strong high pressure will drift over the Mid-Atlantic region today and this will result in a much calmer day compared to Monday as the overall pressure gradient relaxes in the area. While still colder-than-normal, the cold weather today will be much easier to take as wind chills will no longer be a factor. Low pressure will push towards the Great Lakes on Wednesday and with this track to our west, milder air should push northward along the eastern seaboard. As a result, rain is likely to arrive here later tomorrow, but a few ice pellets cannot be ruled out at the onset across the northern and western suburbs. The rain continues into Thursday and then colder air arrives at the end of the storm. In fact, there is a chance for a changeover late Thursday from rain-to-snow as the colder air mass arrives.
Read More
Brutal cold air poured into the Mid-Atlantic region yesterday on the heels of the powerful weekend storm and today will easily be the coldest day of the year so far. Temperatures today will struggle to climb through the lower teens and the strong NW winds will add to the pain generating much lower wind chill values. The next storm system of note will reach us at mid-week and is likely to produce another round of mixed bag of precipitation for the region.
Read More
Arctic air will flood the Mid-Atlantic region today on the backside of departing low pressure which caused heavy rain in the I-95 corridor during the overnight hours. Temperatures will plunge from mid-day through the afternoon and any residual wet surfaces could quickly freeze potentially creating hazardous driving conditions. Single digit lows are likely throughout the I-95 corridor by early Monday and wind chills will make it feel painfully cold. The threat for scattered power outages later today and tonight cannot be ruled out as winds could gust past 40 mph or so.
Read More
A significant winter storm will impact the Philly to NYC corridor from Saturday afternoon into Sunday with accumulating snow, ice and heavy rain. Snow should arrive during the mid-to-late afternoon hours on Saturday and continue into the early evening before transitioning to rain later tomorrow night. The rain can fall heavily at times tomorrow night and it can freeze on some surfaces for awhile in the far northern and western suburbs where temperatures will struggle to climb above freezing. On the backside of the storm, much colder air will pour into the region on Sunday and rain or a wintry mix early Sunday may end briefly as snow with only minor additional accumulations likely. As the Arctic air floods the region later Sunday, N-NW winds will intensify, temperatures will plunge and any slushy or wet surfaces may quickly ice-up. The plummet in temperatures will continue on Sunday night and overnight lows will likely be in the lower single digits come early Monday – easily the coldest day of the year so far - and afternoon highs will do no better than the teens.
Read More
A significant winter storm will impact the region from Saturday afternoon into Sunday with accumulating snow, mixed precipitation and heavy rain. Snow should arrive during the mid-to-late afternoon hours on Saturday and continue into the early evening before transitioning to rain later tomorrow night which can fall heavily at times. The transition period can also feature some sleet and/or freezing rain and, in fact, the rain can freeze on some surfaces into the overnight hours in some of the northern and western suburbs. The snow at the onset of this storm can quickly accumulate before the transition to anywhere from 2 inches (south and east) to as much as 5 inches (north and west). On the backside of the storm, much colder air will pour into the region on Sunday and the rain is likely to change to sleet/freezing rain and then to snow before the precipitation winds down with minor additional accumulations possible. As the Arctic air floods the region later Sunday, N-NW winds will intensify, temperatures will plunge and any wet or slushy surfaces will quickly ice-up. The plummet in temperatures will continue on Sunday night and overnight lows will likely be in the lower single digits come early Monday – easily the coldest day of the year so far - and afternoon highs will do no better than the middle teens.
Read More
There will be three different systems to deal with in the Mid-Atlantic region during the next week or so with a relatively minor storm tonight and then a major storm this weekend. Yet another storm could impact the Mid-Atlantic region with rain and/or snow by the middle of next week. Tonight’s system is likely to result in a coating to an inch or two in the DC-to-Philly-to-NYC corridor with the higher amounts to the north and west of Route I-95 and lesser amounts to the south and east. A major storm will bring lots of precipitation to the Mid-Atlantic region this weekend with everything on the table from heavy rain to accumulating snow and accumulating ice. An Arctic blast will flood the region on the heels of the storm late in the day on Sunday and this could result in a quick freeze-up and potential hazardous driving conditions. Single digit lows are likely by early Monday morning and the coldest day of the year so far will likely see temperatures struggling to get out of the teens in the I-95 corridor.
Read More
