Much warmer-than-normal air that originated over the Pacific Ocean has enveloped much of the nation this week and some of this will reach the northeastern states on Friday and Saturday. In fact, temperatures both tomorrow and Saturday can climb to or even slightly above the 60-degree mark in Washington, D.C. and the 50’s are likely in Philly. The warming trend will come to an end later this weekend with an initial cold frontal passage on Saturday night and then a secondary later Sunday. It turns cooler on Sunday behind the first front and then windy and even colder behind the secondary for Sunday night and Monday.
By late next week, some important changes will begin to take place in the upper atmosphere across North America. First, an intense upper-level ridge of high pressure is likely to form near Alaska and the west coast of Canada replacing a trough of low pressure that has dominated that region in recent weeks. At the same time, an upper-level trough of low pressure will deepen over the eastern half of the US in response to a more active subtropical jet stream that has been largely missing in action in recent weeks. This combination will increase the chance for additional cold air intrusions into the US from Canada beginning late next week and can increase the chance for storms to develop across the southern and eastern states.
Read More
The passage of a weak cold front last night may knock off a few degrees from yesterday’s high temperatures, but we should still reach into above-normal territory. It becomes even milder on Friday and Saturday ahead of the next cold frontal system with temperatures on both days likely nearing 60 degrees. Occasional showers are likely on Friday to go along with those milder conditions and there will be periods of rain on Friday night and Saturday...some of the rain can be heavy at times. A cold front passes through the Mid-Atlantic region on Saturday night and it’ll turn chilly Sunday and even colder on Monday.
Read More
A warm front has pushed northward through the region and temperatures today will respond accordingly and climb well up into the 50’s for afternoon highs. The passage of a weak cold front later tonight may knock off a few degrees for Thursday, but then temperatures will climb to the 60’s on Friday and Saturday. Occasional showers are likely on Friday to go along with those quite mild conditions and periods of rain are quite likely on Saturday and some of that rain can be heavy at times. A strong cold front passes through the Mid-Atlantic region on Saturday night and it’ll turn moderately colder for Sunday and Monday.
Read More
The new work week started off on the chilly side in the Mid-Atlantic region with temperatures below normal for early January however, a warming trend begins today and it’ll reach a peak on Friday and Saturday ahead of the next strong cold front. There may be some light rain or drizzle at times through tonight and some patchy fog as well as a warm frontal system pushes through the area. After a mild and dry day on Wednesday, the passage of a weak cold front at night will knock a few degrees off the temperatures on Thursday, but then they’ll soar on Friday and Saturday to go along with wet conditions on both days. The second half of the weekend will feature windy and moderately colder conditions following the passage of a strong cold front during Saturday night and the early part of next week will begin on the chilly side.
Read More
It has been persistently cold in the northeastern states from around Thanksgiving Day to the present time with the month of December being observed as the coldest since 2010 in many spots including Washington, D.C. and New York City. A warmer weather pattern is on the way, however, which will bring noticeably milder conditions to the region in the Wednesday through Saturday time period. The peak in temperatures will come on Friday and Saturday for the northeastern states, but both of those will feature some rainfall dampening the mood a bit. The next strong cold front looks like it’ll arrive in the eastern states late on Saturday, and its passage will reverse the warmer trend by the time we get to the second half of the upcoming weekend and the early part of next week.
Read More
The week starts off on the chilly side, but a warmer pattern develops by mid-week and it’ll stay mild through Saturday at which time a cold front slides across the region. Temperatures today will climb to the low-to-mid 40’s, and then can reach the mid-to-upper 50’s on Wednesday…60+ degrees on the table for Friday and Saturday. There can be a shower or two during the next few days and then showers are likely on Friday and Saturday to go along with the very mild conditions…just ahead of the next cold front.
Read More
The new year will start off on the cold side as a reinforcing shot of Arctic air has pushed into the Mid-Atlantic region following the late night passage of a cold frontal system. There can be residual snow around early today; otherwise, 2026 will start off with partly-to-mostly sunny skies, unseasonably cold conditions, and northwest winds that can gust up to 30 mph or so. It looks like the colder-than-normal weather will continue through the upcoming weekend. One final note, there will be a low pressure system in the Southeast US on Saturday that may stay just to the south of the area; however, it is a close call and I’ll be watching for a possible northwest trend in its storm track…meaning it still can have an impact here.
Read More
A reinforcing shot of Arctic air will push into the Mid-Atlantic region in the overnight hours assuring a very cold start to the new year. The cold front that will usher in this next Arctic air mass will have some kick to it and it could spark a quick burst of heavy snow during the late-night hours which will follow snow showers in many areas this evening. Temperatures on the first day of the new year will be well below normal and will struggle to climb much past the 30-degree mark in the I-95 corridor region and strong northwest winds will make it feel even colder than the actual outdoor temperatures. The colder-than-normal weather pattern continues through the upcoming weekend and we’ll be monitoring low pressure over the Southeast US to see if it can come far enough to the north to impact the Mid-Atlantic region. Looking ahead, the cold pattern may relax for a week or so; however, numerous signals point to the return of the cold pattern before we get to the middle of the month.
Read More
It remains quite cold here at mid-week and a reinforcing shot of Arctic air will push into the region tonight setting the stage for a very cold start to the new year. Low pressure to our north will drag a cold front through the area tonight and temperatures on Thursday will be far below-normal for the first day of January. Snow showers are possible tonight in the DC metro region and there may even be a burst of heavier snow during the wee hours of Thursday morning…watch for small accumulations and slick spots during the AM hours. It looks like the colder-than-normal weather will continue on Friday and right through the first weekend of the new month.
One final note, there will be a low pressure system in the Southeast US on Saturday that may stay just to the south of the area; however, it is a close call and I’ll be watching for a possible northwest trend in its storm track…meaning it still can have an impact here.
Read More
The passage of a strong cold front on Monday ushered in an Arctic air mass to the Mid-Atlantic region and Northeast US and it is being accompanied by very strong winds that can gust today up to 50 mph or so. A reinforcing Arctic blast will arrive to start the new year on Thursday, and temperatures will remain well below-normal for the first few days of January. Looking ahead, numerous signs point to a continuation of the colder-than-normal pattern across the northern US as we progress through January and some extreme cold could get into the mix.
In addition to the wind and cold, the next few days in the Mid-Atlantic and Northeast US will also feature a couple of upper-level “short-wave” disturbances that will rotate through a “long-wave” trough of low pressure now centered over the northeastern states. As a result, there can be snow showers at various times including late tonight and early tomorrow from one disturbance and again late tomorrow night to early Thursday from a second disturbance. This second “short-wave” is the stronger of the two and small snow accumulations cannot be ruled out – even in the immediate I-95 corridor from DC-to-Philly-to-NYC – right as we begin the new year on Thursday.
Read More
