Many ingredients are coming together for a high impact type of storm system in the eastern third of the nation from Sunday into Monday with accumulating snow, ice, heavy rain, coastal flooding, and even high (potentially damaging) winds all on the table. The upper-level wave of energy that will be the catalyst for storm development is just now coming ashore in the Pacific Northwest and it will dive to the south and east over the next few days. Low pressure will develop by early Sunday morning in the southeastern states and this system will then make a move to the northeast and it’ll encounter an Arctic air mass that will be quite reluctant to give up its ground. As a result, a significant snow and ice event is likely to take place across interior sections of Georgia and the Carolinas on Sunday morning and mid-day. After that, precipitation will push into the Mid-Atlantic region with cold, dense air in place and a period of snow and/or ice is likely in most interior sections with rain a likelihood along coastal areas. The DC-to-Philly-to-NYC corridor is in line for accumulating snow on the front-end of this storm and this can be followed by a period of icing given the expectation that the dense, cold low-level air mass will be tough to dislodge.
Read More
Many ingredients appear to be coming together for a storm system that can have a high impact over the eastern third of the nation from later this weekend into Monday with snow, ice, rain, coastal flooding, and even high (damaging) winds on the table. There are many details that still have to be ironed out with a few days to go before this event and the main wave of energy of interest in the upper atmosphere is just now nearing the US NW coast from the Pacific Ocean. As it stands now, the DC-to-Philly-to-NYC corridor may receive an accumulation of snow on the front-end of this storm system. The immediate I-95 corridor region may end up being the dividing line between a substantial snowfall to the north and west and a snow-to-ice-to-rain scenario to the south and east. Looking beyond the storm, the overall weather pattern likely remains quite a bit colder-than-normal for much of the second half of the month.
Read More
The chances are growing for a significant winter storm to impact the Mid-Atlantic/Northeast US from later Sunday into Monday. In fact, many ingredients appear to be coming together for a storm system that can have a high impact over a large area of the eastern third of the nation from later Sunday into Monday with snow, ice, rain, coastal flooding, and even high (damaging) winds on the table. There are many details that still have to be ironed out with several days to go before this potential event and the main upper-level wave of energy is way out over the Pacific Ocean. The I-95 corridor may be right on or near the dividing line between substantial snowfall to the north and west and a mix of rain, ice and snow to the south and east.
Read More
An Arctic air mass will loosen its grip on the region today and temperatures will modify noticeably after quite a cold start. In fact, temperatures should climb into the 40’s this afternoon and a bit of additional warming will take place on Thursday. After that, the trend in temperatures will be down once again with progressively colder conditions to return for Friday and Saturday as high pressure re-establishes across southeastern part of Canada.
Later this weekend, a vigorous wave of energy in the upper atmosphere will likely help to generate surface low pressure in the southeastern states and it could have an important impact on the Mid-Atlantic region in the “later Sunday/Monday” time frame…stay tuned on this potential significant winter storm.
Read More
An Arctic cold front pushed through the Mid-Atlantic/Northeast US on Monday night and the northeastern quadrant of the nation is suffering today as a result. Temperatures are way below-normal for this time of year despite some sunshine and a stiff NW breeze is pushing wind chill values down into single digits and, in some spots, to sub-zero levels. There will be some modification in temperatures on Wednesday and Thursday, but another cold air mass will arrive from the northwest at week’s end. Looking ahead, the overall weather pattern appears to be evolving into one that could feature multiple storm threats for the eastern US in coming days. A first system looks like it’ll stay far enough off the east coast on Thursday and Friday to have little or no impact in the Mid-Atlantic region, but it still needs to be monitored and could skirt eastern New England. A second storm threat could come in the Sunday/Monday time frame and this one has a much better chance at having an significant impact in the Mid-Atlantic/NE US.
Read More
The passage of a secondary cold frontal system last evening ushered in the coldest air mass in a few years for the Mid-Atlantic region and Northeast US. Despite some sunshine today, temperatures will be confined to the 20’s for highs – way below-normal for this time of year – and a stiff breeze will produce wind chills down in the single digits. After another very cold night, temperatures will modify some on Wednesday and even more on Thursday with highs likely reaching 40+ degrees on Thursday afternoon. An “ocean” storm will form late this week in the southwestern part of the Atlantic Ocean and it will likely stay far enough off the coast to have little or no impact around here. The overall weather pattern will, however, likely produce other storm threats for us beginning later this weekend and lasting into at least the middle part of next week.
Read More
A cold front passed through the Mid-Atlantic region on Sunday night and a secondary cold front will come through on Monday evening. This secondary cold front will usher in true Arctic air for the region with its origins way up in the high latitudes and the stretch of weather from Monday night through Tuesday night will feature some of the coldest conditions we’ve experienced in quite awhile and some “face-slapping” wind chills. The “Great Lakes snow machine” has been activated with the Arctic air mass flowing over the relatively warm waters and will continue into Tuesday for downstream locations. Looking ahead, the overall weather pattern is likely to evolve into one that can produce storms in the eastern US during at least a 10-day stretch beginning this weekend.
Read More
A strong cold front passed through the region on Sunday night and it has ushered in a cold air mass for today, and a reinforcing Arctic front will pass through early tonight - true Arctic air will follow this second front. The approach and arrival of the Arctic front later today/this evening could produce some snow shower activity in the Mid-Atlantic region. The coldest core of this Arctic air mass will be across the area from tonight through tomorrow night as high pressure edges into the area. Temperatures will modify on Wednesday and Thursday, but we’ll have to get through a 36-hour or so very cold stretch beforehand.
Read More
Accumulating snow ended this morning across the Mid-Atlantic region and, in its wake, there are quite windy and cold conditions with partial sunshine. The next threat of wintry precipitation looks like it will come early in the day on Sunday, January 9th and this time, it will likely be in the form of freezing rain and/or sleet. The opportunity for icing will come on Sunday morning as milder air tries to advance northeastward into what will be a cold and dense air mass. It doesn’t take much in the way of icing to have an important impact on travel conditions. Whatever precipitation does fall on Sunday, it will certainly be followed by an Arctic outbreak for the early part of next week that will feature some very impressive cold for the northeastern quadrant of the nation.
Read More
Low pressure that generated the overnight snowfall continues to intensify this morning as it pushes northeastward over the open waters of the western Atlantic. This system will push fairly rapidly during the next few hours to a position off the east coast of Maine by mid-day. Any clouds early today will give way to mainly sunny skies and it’ll become quite windy with gusts to 35 mph for the mid-day and afternoon. Later tonight, temperatures will drop well down into the teens and Saturday will remain much colder-than-normal for this time of year despite some sunshine. Milder air will try to push into the area late Saturday night and Sunday and this process may initially result in a bit of rain and/or ice in some spots. By later Sunday, temperatures should be able to reach into the 40’s, but the warm up will be short-lived as another impressively cold air mass will arrive early next week following the passage of the next cold frontal system.
Read More
