A major pattern change to cold begins today following the passage of a strong cold frontal system and temperatures this afternoon will be noticeably colder than yesterday’s mild conditions. This change to cold will be rather sustained with a good chance for below-normal temperatures on average from this point through most, if not all, of the month of December. This initial shot of cold air will feature an intensifying trough of low pressure in the eastern US with plenty of waves of energy rotating through and each system will attempt to generate low pressure near the east coast. As a result, the threat for some snow or snow shower activity will persist from later this week into the upcoming weekend. Signs point to an even colder air mass to arrive next week in the eastern US which will be way below-normal for this time of year and this blast may be accompanied by some snow.
Read More
A major pattern change is going to begin on Wednesday in the Mid-Atlantic region and it will result in an extended period with colder-than-normal temperatures. This initial shot of cold will be followed by a reinforcing cold air mass this weekend and then a significant cold air outbreak is likely next week which may accompanied by a coastal storm. The pattern-changing cold front is now crossing the Ohio Valley and it is trailing a powerful storm just north of Lake Superior.
Read More
A major pattern change is going to take place around here over the next couple of days and it will lead to a sustained period of colder-than-normal temperatures. The strong cold front that will usher in the initial cold shot in this unfolding pattern change will produce showers around here from later today through tonight and there can be a period of steadier rain early this evening. On Wednesday, the wind will pick up out of the northwest and the colder air mass will push into the Mid-Atlantic region and actually end up extending all the way down into the Deep South. An intensifying upper-level trough in the eastern US will have lots of energy rotating around it late this week and this weekend and there is the potential for low pressure to form near the east coast which could result in some snow shower activity for the I-95 corridor. Another cold air outbreak is destined to arrive next week and it looks to be even colder than this initial blast and way below-normal for this time of year.
Read More
A major pattern change is going to begin on Wednesday in the Mid-Atlantic region and it will result in a period of sustained colder-than-normal temperatures that will assure a much different December compared to the last five. This pattern change to cold will also include increasing chances for snow – perhaps as early as late this week or during the upcoming weekend – as an active upper-level trough forms in the eastern US associated with the initial cold blast.
Read More
A major pattern change is going to take this week in the Mid-Atlantic region that will result in a sustained period of colder-than-normal temperatures with snow threats as well. The strong cold front that will usher in the initial cold shot in this unfolding pattern change will produce showers around here from later tomorrow into early Wednesday. By late Wednesday, the wind will pick up out of the northwest and the colder air mass will pour into the Mid-Atlantic region.
Read More
A major pattern change is going to take place next week in the Mid-Atlantic region that will result in a sustained period of colder-than-normal temperatures. This change to sustained cold in the Mid-Atlantic region will be the result of a combination of strong high-latitude blocking (i.e., nearly stationary strong high pressure over Greenland and northern Canada), an intensifying upper-level trough in the central and eastern US, and strong high pressure ridging along the west coasts of Canada and the US. The strong cold front that will begin the pattern change to cold will arrive with showers on Tuesday night and Wednesday and then colder air will pour into the region later Wednesday into Thursday.
Read More
A major pattern change is going to begin in the Mid-Atlantic region during the middle of next week that will likely result in an extended period of colder-than-normal temperatures. In addition, snow will likely become a threat on multiple occasions during the month of December - potentially as early as at the end of next week.
Read More
A weak cold front passed through the region late yesterday and while high pressure will build into the area today, temperatures will be some ten degrees lower this afternoon compared to Wednesday. Another cold front will arrive on Friday and this will set the stage for a chilly weekend and early part of next week. Looking ahead, a major pattern change will begin by around the middle of next week with a sustained period of colder-than-normal weather coming to the central and eastern US. This change to sustained cold in the Mid-Atlantic region will be brought about by a combination of strong high-latitude blocking (i.e., nearly stationary strong high pressure over Greenland), an intensifying upper-level trough in the central and eastern US, and strong high pressure ridging along the west coasts of Canada and the US.
Read More
If you still have to put up outside Christmas lights and rake some more leaves then this weekend may be the last chance with seasonal temperatures in the Mid-Atlantic region. There are continuing strong signs for a major pattern shift in the central and eastern half of the nation that will bring some serious and sustained cold thanks to a combination of strong high-latitude blocking centered over Greenland, an intensifying upper-level trough in the central and eastern US, and strong high-pressure ridging along the west coasts of the US and Canada. The transition time period from the current mild weather pattern to this upcoming cold pattern looks like it will come around next Wednesday, December 6th with the arrival of a strong cold frontal system in the eastern states that will be followed by a wall of cold.
Read More
Temperatures this afternoon should climb towards the 60 degree mark which is well above normal for this time of year, but that will be the high point of the week as colder air pushes in on Thursday shaving about ten degrees off of today's highs. A few showers are possible on Thursday night and then it should generally be seasonably chilly on Friday, Saturday and Sunday. Looking ahead, a major pattern change is likely to begin later next week with colder-than-normal conditions coming to the central and eastern US and it looks like this new pattern will stick around for awhile.
Read More
