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Weak Systems Bring Two Rounds of Showers

By: Chief Meteorologist Eric Fisher
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Eric Fisher on Mt. Washington. (WBZ-TV)

Eric Fisher on Mt. Washington. (WBZ-TV)

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No complaints about Thursday’s great weather in New England. Many towns were up in the 70s during the afternoon, a solid +10 above average for this time of year. Mild weather will stick around for a while longer, but enjoy it while you can! A big pattern change is poised to kick off next week.

For tonight, a fast-moving wave of low pressure will rocket through the Northeast. Most of the upper-level energy with this system will miss the Boston area to the northwest, with the heaviest rain falling across New York, VT, and northern NH. Locally we’ll see a smattering of showers that will swing through between 10pm and 6am. A few of these may be briefly heavy with gusty winds, but most towns should end up with <.25″ of rain in the gauge by tomorrow morning.

By commute time, the rain will already be heading offshore. Clearing skies and a gusty west wind will take their place, with a mostly sunny Friday expected. The only fly in the ointment will be that wind, which may gust up to 30mph at times. Not a good leaf-raking day! But highs will once again be +10 above average, generally topping out near 70.

Also keep an eye to the sky tomorrow evening, as a penumbral lunar eclipse will take place right around sunset/moonrise. The Earth’s shadow will dance across a part of the full moon, which will appear as a ‘smudge’ on the moon to the average viewer here at home. Not the most dazzling of celestial displays, but worth a glance with clear skies expected!

Not too much fanfare this weekend, which is a good thing considering the Head of the Charles, numerous weddings, Sox at Fenway Park, and peak foliage locally all on tap! Saturday will be pleasant with a mix of sun and clouds and highs still above average. A fast-moving front will move in Saturday  night, and should bring a few showers along with it. Much like tonight’s system, most of those are forecast to fall at night. That *may* end up impacting the Red Sox game, but we’ll work out the timing a little bit better as we get closer.

Sunday will be cooler but still seasonable, with a gusty northwest breeze and a mix of sun and clouds. Quiet weather will linger into Monday, and even into most of Tuesday. By late Tuesday the ‘game changer’ front will be heading in, and will deliver much colder air. While it’s still a week out, most indications are that this will be the coldest air of the season so far for us, with the potential for a widespread killing freeze and snowflakes for some of the mountains! Stay tuned…

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