Fair Weather Returns, But Two Systems to Watch This Week & Weekend
Nearly Ideal Memorial Day Weather in New England

Memorial Day Weekend Sticks To Script This Year: An Unofficial Beginning to Summer

LKS_FCST_HIGHS_D0_NEWENG (56) LKS_FCST_HIGHS_D0_NEWENG (56) LKS_FCST_HIGHS_D0_NEWENG (56) LKS_FCST_HIGHS_D0_NEWENG (56) LKS_FCST_HIGHS_D0_NEWENG (56)An incredible stretch of weather is unfolding for New England that will extend through and beyond the Memorial Day holiday.  A massive area of high pressure – fair weather – is once again building southeast from Central Canada, as it has so often this spring season.  The large, clockwise flow of wind around such systems as they build into New England from our northwest generates a fresh, northerly breeze of dry air at first, then usually culminates with a southerly wind as the center of high pressure drifts east of us.  This time around, the jet stream configuration aloft – the storm steering winds – set up in a special way that causes the weather pattern to grind to a halt for days on end.  This evolution will benefit New England, as it means one departing high pressure center later this holiday weekend is simply replaced by another, keeping dry, pleasant and then increasingly warm weather in the forecast through much of next week!  Of course, a stalled weather pattern doesn’t benefit everyone’s outdoor plans: to our south, a storm stalls over the Southeast United States with recurring showers and thunder, day after day, for days on end.  Here at home, the biggest differences in weather from one day to the next will be dependent upon sea breezes, or lack thereof, which usually is determined by how strong the prevailing wind is on any given day.  Thursday, for instance, brings a fresh northerly wind that does blow across Cape Cod Bay to keep Cape Cod cooler than the rest of us – plus cool air will remain in place across Northern Maine where showers will develop from time to time – but the breeze will be strong enough, gusting to 25 mph, to stave off any sea breeze.  Fair weather clouds build in the afternoon sky and a few sprinkles are possible before clearing ensues Thursday night.  With dry air and a clearing sky, Thursday night will cool quickly, with low temperatures in the 40s for many but 30s in colder valleys and much of Northern New England, meaning those who live in typically cooler spots probably want to cover vegetable and other delicate plants one more night before the warming trend takes hold.  With a lighter wind Friday, sea breezes will develop during the afternoon, keeping coastlines in the 60s while the interior rises to the 70s, but all will enjoy sun and variable afternoon clouds.  Saturday, Sunday, Memorial Day and Tuesday all bring ample sun – with sea breezes expected Saturday, Monday and Tuesday, but a southwest wind Sunday bumping even east-facing beaches into the 80s!  Use caution if on the water – ocean water temperatures in the 50s pose a serious hypothermia risk.  By the second half of next week, a deep southwest wind takes hold and feeds true summer air into New England for the start of June, with highs by Thursday, June 1 (the start of meteorological summer!) possibly running toward 90 degrees in our exclusive First Alert 10-day forecast.


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