It is quite common to have a “Bermuda High” type of weather pattern in the eastern US this time of year with high pressure stationed over the western Atlantic and southwesterly flow of air pushing hot and humid air to the Mid-Atlantic region from the Gulf of Mexico. Our current weather pattern is about as opposite as you can get with a meandering upper-level low centered over Maine/Nova Scotia leading to persistent northwesterly flow in the lower part of the atmosphere. This type of wind flow is influencing the weather in multiple ways.
First, it is leading to quite comfortable temperatures in the Mid-Atlantic region for the early part of June and, second, it is resulting in unusually low humidity levels. In addition, this persistent northwesterly flow continues to bring smoke into the area from wildfires that developed several days ago in Quebec, Canada. In fact, the most dense smoke of all in this current outbreak may push into New York City, Pennsylvania and New Jersey this afternoon and evening and the smell of smoke should become much more noticeable. In terms of rainfall, there were scattered late day showers and thunderstorms on Tuesday and a couple of troughs can bring isolated showers/thunderstorms to the Mid-Atlantic region later in the week. Looking ahead, there is a glimmer of hope for a more appreciable rainfall early next week with another upper-level low likely to spin into the Mid-Atlantic region from the Great Lakes.
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Smoke from wildfires in Quebec, Canada will continue to fill the skies in the Mid-Atlantic region today leading to hazy conditions. Temperatures will remain quite comfortable for the early part of June influenced by a closed-low spinning around over Nova Scotia/Maine. A couple of weak troughs rotating around the upper-level low can result in isolated showers on Thursday and Friday and there is a glimmer of hope for more appreciable rainfall early next week.
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Smoke from Canadian wildfires continues to fill the skies in the Mid-Atlantic leading to deep red/orange sunsets/sunrises in the region as well as some “milky” sunshine. Temperatures remain quite comfortable for the early part of June influenced by a closed-low spinning around over the northeastern states. A weak frontal system could spark isolated showers later today and a couple of weak troughs can produce isolated showers later in the week, but it’ll certainly be a struggle to get anything of significance through the week. Looking ahead, there is some hope for a more appreciable type of rainfall early next week in the Mid-Atlantic region.
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The main player in the weather this week across the Mid-Atlantic region will be a closed-low over the northeastern states that will keep it relatively comfortable and generally dry. The best and perhaps only chance for some rainfall over the next few days will come later tomorrow when a cold front pushes across the region bringing with it a chance of showers and thunderstorms. After its passage, the closed-low to the northeast will resume its domination of the weather scene preventing any hot and humid conditions from moving into the area.
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High pressure stays in control of the weather through today providing us with some sunshine and warm temperatures peaking near the 80 degree mark. A cold front passes through the region later tonight and it’ll usher in a cooler-than-normal air mass for Thursday and Friday with the continuation of dry conditions. The weather for the upcoming weekend can become somewhat unsettled with low pressure to our south and high pressure to our north.
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High pressure stays in control of the weather through tomorrow providing us with some sunshine each day and comfortable temperatures. A cold front passes through the region tomorrow night and it’ll usher in a cooler-than-normal air mass for Thursday and Friday to go along with the continuation of overall dry conditions. The weather for the upcoming weekend can become somewhat unsettled with low pressure to our south and high pressure to our north, but temperatures should remain in the comfortable zone.
One final note…skies have had a “milky” appearance in recent days and there have been some unusually orange sunsets and sunrises…all due to smoke from Canadian wildfires that has made its way into the Mid-Atlantic region.
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It looks like the overall dry weather pattern of recent days in the Mid-Atlantic region will continue through the work week, but the holiday weekend could turn out to be somewhat unsettled as an upper-level low might move to a nearby position. High pressure will maintain control of the weather through mid-week providing us with dry conditions and comfortable temperatures and humidity levels. The passage of a cool front on Wednesday evening will usher in a bit cooler air mass for Thursday and Friday, but it should remain dry.
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It turns a bit milder today in the Mid-Atlantic region as high pressure pushes off the eastern seaboard. Low pressure will form along the east coast later tonight and, at the same time, a frontal system will close in on the eastern states from the Midwest. The combination of the two systems will bring us plenty of cloudiness from later tonight into the PM hours on Saturday and occasional showers will be possible. High pressure is expected to return for the second half of the weekend bringing us plenty of sunshine on Sunday along with comfortably warm conditions.
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The chilly and dry air mass that moved into the Mid-Atlantic region following the passage of a cold front will help to keep temperatures at below-normal levels for another day despite plenty of sunshine. It turns somewhat milder on Friday and low pressure will try to organize near the east coast at the same time a frontal system pushes this way from the Midwest. The combination of the two systems can result in shower activity around here on Friday night and Saturday. High pressure is to return for the second half of the weekend with sunshine expected on Sunday.
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The next couple of days will be quite stressful for tender and newly planted vegetation in the Mid-Atlantic/Northeast US given the double whammy of possible frost/freeze conditions and the influx of an excessively dry air mass. This is quite late in the season for a possible frost/freeze; especially, in the Mid-Atlantic region, but indeed that is on the table for late tonight/early tomorrow across interior sections of the northeastern states. This unusually chilly air mass for this time of year is also one that is very dry and dew points will drop into the 20’s over the next few hours.
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