It’ll remain warm today in the Philly metro region, but not quite the extreme of the past couple of days as changes get underway in the overall weather pattern across the eastern states. The big change will take place later this weekend as a strong cold front arrives and this front will likely produce some much-needed rainfall here from later Saturday night into Sunday. In addition, it’ll turn much cooler for Sunday and Monday and temperatures late Monday night/early Tuesday could drop into the lower 30’s...potentially prompting frost and/or freeze advisories to be issued. A quick rebound in temperatures is likely by mid-week, but cooler-than-normal air could return to the northeastern states by the end of next week.
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The unseasonably warm conditions in the Mid-Atlantic region will continue for one more day and many spots today will challenge their daily high temperature record. It’ll remain on the warm side on Friday and Saturday, but not quite the record-challenging warmth experienced here during the past couple of days. The warmer weather pattern breaks down over the weekend as a strong surface cold front heads toward the eastern states at the same time intense high pressure ridging along the coast slides to the east. The front will bring with it a good chance of much-needed shower activity on Saturday night and Sunday and it’ll usher in a much cooler air mass to close out the weekend and start the new work week. In fact, temperatures late Monday night/early Tuesday are likely to drop way down in the 30’s which could prompt frost and/or freeze advisories for portions of the Mid-Atlantic. Temperatures rebound by mid-week, but an overall pattern change will bring additional colder-than-normal air masses to the central and eastern states during late April.
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The significant warmup in the Philly metro region will continue for another day with temperatures soaring today to well up into the 80’s and there can be record highs observed in some spots. The unseasonably warm weather pattern will breakdown this weekend with the arrival of a strong cold front on Saturday night. This frontal system will bring with it a good chance of much-needed shower activity in the Mid-Atlantic region on Saturday night and Sunday and it’ll turn much cooler for the early part of next week. In fact, temperatures late Monday night/early Tuesday could drop into the lower 30’s across the area and frost/freeze advisories may be required…a quick rebound in temperatures for the mid-week.
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Our significant warmup continues for the next two days and there can be daily high temperature records set in some areas along the I-95 corridor. A band of showers and thunderstorms developed late yesterday and impacted parts of the area last evening and a repeat performance can take place late today/early tonight. The unseasonably warm weather pattern will begin to breakdown this weekend and a strong cold front will approach the area by Saturday night/Sunday bringing with it a threat of showers. Much cooler air pushes into the northeastern states for the early part of next week and temperatures could drop into the low-to-mid 30’s late Monday night/early Tuesday morning.
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A significant warmup began in the eastern states on Monday and the next few days will feature unseasonably warm conditions in the Mid-Atlantic region with record high temperatures a possibility in some areas. The warmup will last through the work week, but then a strong cold front will approach the east coast by Sunday paving the way for a colder-than-normal air mass to reach the northeastern states by the early part of next week. This may not be the end of the chillier air masses as signs point to additional outbreaks from Canada as we progress to the last week of April.
In terms of (much needed) rainfall, a complex of showers and thunderstorms developed in the overnight hours over the Great Lakes and some of this activity can re-develop later today in the Mid-Atlantic region; primarily, on the north side of the PA/MD border.
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Most have been waiting for this kind of warmup in the eastern states following several false starts this season, but this may end up being a little too much on the extreme side. Not only are daily high temperature records in jeopardy this week in the Mid-Atlantic region with 90+ degrees on the table, but a few spots could experience their highest April temperatures ever recorded although it will be tough to beat the heat wave of April 1976. This warmup should last well into the upcoming weekend, but there are strong signs that another chilly air outbreak is destined to reach the northeastern part of the country by early next week. In fact, there are signs that additional colder-than-normal air masses will impact the central and eastern states during the last week of April at the same time a teleconnection index known as the Madden-Julian Oscillation or MJO shifts into a colder-than-normal phase for this time of year.
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Record breaking warmth possible this week…
A significant warmup is coming to the eastern states this week with temperatures climbing to near 80 degrees around here today and then well up in the 80’s on Tuesday, Wednesday, and Thursday…even 90 degrees is on the table. The weather pattern has been quite dry in recent days across the eastern US and that trend looks to continue this week with minimal chances of any decent rainfall and just the chance of a shower from time-to-time.
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The work week will end with clouds this morning giving way to some sun for the afternoon and it’ll turn noticeably milder compared to recent days ahead of the next cool front. That front comes through the region later tonight and temperatures on Saturday will be a tad lower than today and northwest winds will kick up at times. Looking ahead, a significant warmup is expected for the early and middle parts of next week. Temperatures should climb well up into the 70’s on Monday for afternoon highs and then the 80’s are coming for Tuesday, Wednesday and Thursday.
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The day will start off on the frosty side, but it’ll turn a bit milder this afternoon with plenty of sunshine and light winds. It turns even milder on Friday ahead of the next cold front and there can be a shower on Friday night. The weekend will start off with breezy and cooler conditions on Saturday to go along with some sun and seasonal temperatures will close out the weekend with more sunshine expected on Sunday. Looking ahead, the weather turns much warmer next week with the middle 70’s on the table for Monday for afternoon highs and the low-to-mid 80’s by Tuesday afternoon.
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It remains colder-than-normal today on the heels of secondary cold frontal passage on Tuesday morning with temperatures some ten degrees or so below the average for this time of year. Temperatures later tonight can drop to the upper 20’s in many suburban locations and widespread patchy frost is indeed possible. It turns milder by the end of the week and we are setting up for a pretty nice weekend in the Philly metro region featuring sunny, dry and mild days. Much warmer weather is on the way for next week in the Mid-Atlantic region.
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