There will be a surge of high heat and humidity today into the Mid-Atlantic region and temperatures will climb to the middle and upper 90’s. There can be a late day and nighttime shower and thunderstorm and those chances form rain will increase on Friday as a frontal system stalls out nearby. The threat for showers and thunderstorms will likely continue through the upcoming weekend as the front meanders in the Mid-Atlantic region, but much of the time will be rain-free. Any shower or thunderstorm that does form over the next few days can produce heavy rainfall amounts in a short period of time.
Read More
After a sunny and warm day here at mid-week, southwesterly flow will increase tonight and begin funneling in a hotter and more humid air mass into the Mid-Atlantic region from the Tennessee Valley. In fact, temperatures on Thursday afternoon are likely to reach their peak for the week climbing to the middle and upper 90’s in the DC-to-Philly-to-NYC corridor…maybe even a flirtation with the 100 degree mark in some spots. In addition to the heat, dew point temperatures will climb into the lower 70’s tomorrow indicative of high humidity levels making for quite uncomfortable conditions and heat indices above 100 degrees. After the high heat and humidity of Thursday, attention will turn to an approaching frontal system from the northwest that will be a slow-mover. The front will stall on Friday in an environment that will be very moist and - with some support aloft associated with a long-wave trough - ingredients may come together for numerous showers and thunderstorms including the threat of downpours. In fact, this same front is likely to meander in the Mid-Atlantic region this weekend and additional pieces of energy will rotate through the upper-level trough keeping it unsettled with additional showers and thunderstorms on the table. Any shower or storm that does this form this weekend will also have the capability of producing heavy rainfall in the Mid-Atlantic similar to what can take place on Friday.
Read More
The week started off with below-normal temperatures in much of the Mid-Atlantic region thanks to plenty of cloud cover and a light low-level easterly breeze. As is often the case this time of year, the break in the heat will be rather short-lived. High pressure pushes off the east coast at mid-week and the peak in this week’s heat and humidity in the Mid-Atlantic region may come on Thursday after persistent southwesterly flow develops on the backside of the high. After that, the potential exists for some heavy rainfall from Thursday night into the upcoming weekend as a frontal system stalls in the region with weak wind flow aloft and a very moist overall environment.
Read More
It’ll turn out slightly warmer today compared to Monday with the return of sunshine following the partly sunny start to the week. High pressure will stay in control through tomorrow night and then it pushes offshore on Thursday allowing for a surge in heat and humidity in the northeastern states. In fact, temperatures could soar well into the 90’s on Thursday afternoon and then a slow-moving front will approach from the northwest on Thursday night and Friday. This late week frontal system is likely to stall out near the coast and result in shower and thunderstorm activity from Friday into Saturday - some of which can be heavy at times.
Read More
A decent start to the work week in terms of temperatures which will be slightly below-normal for the first day of August, but it’ll turn hotter during the second half. A warm front pushes north through the region on Tuesday and then a weak cool front follows on Tuesday night. The second half of the week will feature temperatures climbing to the middle 90’s and it’ll become more humid on the back side of high pressure pushing off the coast to our east.
Read More
A cool front will move slowly across the area later today into tonight and with it will come another chance for showers and thunderstorms…some of the PM storms can be strong-to-severe. Downpours early last night brought a lot of rainfall to some areas in a short period of time. The front should clear the coast by early tomorrow and a comfortable air mass will push into the Mid-Atlantic region for the weekend. Temperatures will be confined to the 80’s today and right into the early part of next week. Hot weather will develop in the central states by the middle of next week and a surge of heat and humidity can return here later next week.
Read More
A cool front will approach the region later today and then move slowly across the area during the next 24-36 hours. As such, it’ll stay unsettled around here with the chance of showers and thunderstorms later today, tonight and on Friday though much of the time will be rain-free. The cool front will push far enough to the south and east by the weekend to allow for the arrival of a comfortable air mass into the Mid-Atlantic region. After a flirtation with the 90 degree mark later today, temperatures should generally be confined to the 80’s for afternoon highs on Friday, Saturday and Sunday and even into the early part of next week.
Read More
A meandering frontal system and a couple of upper-level disturbances will keep us unsettled over the next couple of days with a shot at some shower and thunderstorm activity from late today into Thursday. Another chance of showers and thunderstorms will come on Thursday night and Friday with the next cool front and it looks like that system will clear through here by early Saturday. As such, a comfortable air mass should push into the Mid-Atlantic region for both Saturday and Sunday with high temperatures confined to the 80’s on both days.
Read More
There have been many frontal passages in recent weeks across the Mid-Atlantic region that have produced showers and thunderstorms and, in some cases, severe weather. While these showers and thunderstorms have often been quite “numerous” to the south of the PA/MD border, they have usually been “isolated-to-scattered” across Pennsylvania, New Jersey and New York City. These “hit or miss” variety showers and thunderstorms are frustrating many residents to the north of the PA/MD border with lawns now beginning to turn brown in many areas. There will be additional chances of showers and thunderstorms in coming days, but still no guarantees; especially, to those north of the Mason-Dixon Line.
Read More
Temperatures will actually stay below-normal today in most spots of the Mid-Atlantic region with highs, for example, confined to the lower 80’s in the DC metro area where normal highs at DCA are about 90 degrees. Given the general west-to-east air flow in the upper part of the atmosphere, the front that came through last night will have difficulty pushing too far to the south and east over the next 24 hours or so and is likely to stall out in the southern Mid-Atlantic region. As such, it’ll stay unsettled around here for the remainder of the work week with additional chances for showers and thunderstorms to go along with overall rather seasonal temperatures. Another cool front will head this way late in the week and all signs point to this next one having enough “push” behind it to bring another comfortable air mass this way for the upcoming weekend.
Read More
