It’ll turn noticeably milder today ahead of the next blast of Arctic air, but the mild weather will come at a price. There will be periods of rain today – perhaps a strong thunderstorm or two – and some of the rain can come down hard at times during the morning and mi-day hours. Colder air will push into the Mid-Atlantic region on Friday and the temperatures will remain well below normal this weekend with another widespread freeze possible again by Sunday morning. In addition to upcoming cold, there will be lots of upper level energy hanging back in this next cold air mass and low pressure is likely to form near the Mid-Atlantic coastline on Saturday. Some snow shower activity is likely late Friday night and on Saturday in the DC metro region - likely mixed with rain at times - and small grassy accumulations are possible in higher elevation locations to the north and west of the District.
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Low temperature records were broken this morning in parts of the Mid-Atlantic region and Northeast US (e.g., Dulles and BWI Airports bottomed out at 24 degrees) and this is by no means the end of the unusual cold weather. Temperatures will modify some this afternoon and turn much milder on Thursday, but more Arctic air is poised to pounce on the region by the weekend and freezing conditions are quite likely in parts of the Mid-Atlantic on both weekend mornings. In addition to the upcoming late week and weekend cold, accumulating snow is a threat as a very energetic upper-level pattern develops in the Northeast US. Waves of energy will rotate around a deep upper-level trough of low pressure at the end of the week and the result could be a storm near the Mid-Atlantic coastline by Saturday. Tomorrow’s noticeably milder weather will come at a price as there will be periods of rain – perhaps a thunderstorm or two – and some of the rain can come down hard at times.
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Widespread record or near record cold this morning in much of the Mid-Atlantic region and Northeast US with, for example, lows of 20 degrees in Allentown, PA, 24 degrees at BWI and Dulles Airports (both records), and the upper teens in the Pine Barrens of New Jersey. After a very cold start to the day, there will be some modification in temperatures this afternoon, but that will not be the end of the cold weather. Even though it turns even milder on Thursday to go along with occasional showers and a possible thunderstorm or two, more Arctic air will arrive by Friday and the end of the week and weekend will be well below normal for this time of year. In fact, low temperatures on Sunday morning could be as cold as they were this morning across the Mid-Atlantic region. In addition to the late week and weekend cold, there will be lots of upper level energy hanging back in the cold air mass and we’ll have to watch for the possibility of some snow or snow shower activity on Saturday.
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April can be a cruel month. The 1 PM temperature at Philly Intl Airport was only 41 degrees despite full sunshine and northerly winds were gusting to 28 mph. This is very impressive cold for April 5th in Philly which has a normal high temperature of 60 degrees. This most recent of Arctic air outbreaks has indeed wreaked havoc on several baseball openers and has generated some remarkable low temperatures in the Northeast US and Upper Midwest with, for example, Marquette, Michigan dropping to -7°F and Syracuse, New York to 9°F – second coldest ever recorded in both places for so late in the year. A hard freeze is very likely in the overnight hours throughout the I-95 corridor with an extended period likely of below-freezing temperatures. Temperatures will modify on Wednesday afternoon after a cold start to the day, and it’ll turn milder on Thursday with occasional showers and possible thunderstorms, but yet another Arctic blast is destined to arrive for Friday and Saturday in the eastern US. In addition, an energetic upper-level pattern could result in some snow or snow shower activity on Saturday in the Mid-Atlantic region.
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It is much more like February this morning than April with near freezing temperatures and much lower wind chills - also, don't be surprised to see a snow shower or two. Another Arctic blast has arrived in the Mid-Atlantic region and temperatures today will hold in the 40’s - well below normal for this time of year (normal high at DCA is 62 degrees). A hard freeze is quite likely late tonight throughout the metro region as temperatures will likely fall below freezing for a several hour period. Yet another Arctic blast arrives late this week and it should be preceded by more rainfall in the I-95 corridor on Thursday. Beyond that, there will be a lots of upper level energy hanging back in the atmosphere after the cold air becomes well established in the Mid-Atlantic region and we'll have to watch for potential mischief by early in the weekend.
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An active pattern continues this week with another strong Arctic frontal system headed our way for the overnight hours. After a chilly start to the day, it’ll turn milder ahead of this next cold front with temperatures climbing well up into the 60’s during the afternoon to go along with some shower activity and maybe a thunderstorm or two. Winds will pick up later tonight as the next Arctic air mass arrives and there will be a plunge in temperatures after midnight with lows generally in the upper 20’s. Another hard freeze is likely tomorrow night with lows dropping to the 20’s for a several hour period. Yet another Arctic blast arrives late this week and it will likely be preceded by a complex low pressure system likely to produce more rainfall in the I-95 corridor.
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A strong cold front will approach the region today generating occasional showers and possible strong thunderstorms. It’ll stay very warm ahead of this front and quite muggy with temperatures likely reaching well into the 70’s for highs in the DC metro region. Saturday promises to be a cooler day with possible showers and then a strong second cold front will arrive tomorrow night. This second front will cause winds to pick up dramatically on Saturday night and Sunday morning - perhaps with gusts near 60 mph - and rain showers could change to snow showers late Saturday night and early Sunday. Another strong cold front arrives Monday night in this very active weather pattern. Temperatures could drop to near or below freezing in the overnight hours Sunday through Wednesday.
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It’ll become much warmer today as a broad southwesterly flow of air develops ahead of an approaching cold frontal system. Showers will develop tonight and continue on Friday as the strong cold front closes in on the eastern seaboard. There can also be a few thunderstorms mixing in later tonight and Friday which can produce some strong winds and brief downpours. A secondary cold front will push through the area Saturday night/early Sunday with possible rain or snow showers and the winds will pick up quite dramatically. Sunday and Monday will be quite chilly for this time of year and temperatures may drop towards the freezing mark again by early Monday morning.
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After a cold start to the day, temperatures will modify this afternoon and a strengthening southwesterly flow of air will warm it up even more on Thursday. It should stay rain-free today, but a warm frontal system is likely to generate showers around here later Thursday and tomorrow night - perhaps even a thunderstorm or two mixed in. A “major league” cold front will then arrive in the eastern US on Friday and it will usher in a colder-than-normal stretch of weather for the Mid-Atlantic, Great Lakes, and Northeast US beginning this weekend and lasting for perhaps a week-to-ten days.
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Major League Baseball opens its 2016 season on Sunday and Monday and many teams may wish they could spend another couple of weeks in Florida or Arizona. A “major league” cold front will arrive in the eastern US on Friday, April 1st, and it will usher in a colder-than-normal weather pattern for the Mid-Atlantic, Great Lakes, and Northeast US that will begin this weekend and last for a week-to-ten days with multiple cold air outbreaks. Many home openers on Sunday and Monday are likely to experience well-below normal temperatures including those at the following locations: Pittsburgh (Sunday), New York Yankees (Monday), Cincinnati (Monday), Baltimore (Monday), and Cleveland (Monday). Furthermore, there may be multiple shots at accumulating snow in the Northeast US during this stretch of below-normal temperatures. After this period of colder-than-normal weather winds down, temperatures are likely to climb dramatically during the middle of April.
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