Aug 18, 2015 1:39 PM
NH1 Chief Meteorologist
Hot enough for you? I admit it...I absolutely love this kind of weather. This heat and humidity is not even close to being extreme...It is a little hot, and a little humid...so again the complaint department is closed. These type of summer days are quickly coming to an end. It won't be long until we will be wishing for days like this. So as it is with all weather, for every season, be it rain, snow or thunderstorms... don't hate it. Accept it, embrace it, and appreciate it for what it is. Another great day to be alive!
Now on to the big question. When is the heat and humidity going to break. I can tell you the hot weather is coming to an end very shortly. The Humidity? That is going to take a bit longer. The current weather set up has an upper level ridge in place on the east coast pumping up the heat and humidity up the east coast. High pressure is parked offshore providing the low level stable dry air..meaning no rain....but it is still quite humid. There is a strong low pressure system being directed by the jetstream up into the Great Lakes. As that shifts into Canada, the warm muggy air will remain on the east coast through the midweek with winds from the south.
When it comes to breaking down a heatwave, sometimes it is just a matter of a slight windshift. After another warm Wednesday with highs in the 80's to near 90 and dewpoints in the 60's with winds from the south, Thursday will see winds shift to the SE, for a wind off the water which will cool the beaches and even the inland areas across NH. Instead of Highs in the Lwr 90's, it will be in the mid 80's. A bit more tolerable for the heat haters out there. SE winds will sometimes direct in low clouds in off the water. That will be the case early Thursday morning. Expect marine clouds in place at dawn Thursday, but they will burn off to partly sunny skies. Low clouds will again return late in the day. These clouds will be more serious. The will thicken through Thursday night. Mostly cloudy skies can be expected Friday with a cold front crossing the region. This will trigger scattered showers and a thunderstorm as it pushes through with highs in the 70's. Still Humid. In fact it will likely remain humid through the weekend with dewpoints stuck in the 60's.
The far out...the weekend is not an automatic, but it will be mostly pleasant for being outside. The issue is this cold front pushing through is going to stall right on the coast Saturday. Temps will be warmer inland near 80 with Lwr-70's at coast. There will be the potential for low clouds lingering at the coast, with partly sunny skies inland. High pressure will be right behind the cold front and will sit over us Sunday with dry conditions. The cold front should push father off the coast towards Cape Cod by Sunday. Cooler onshore winds will continue at the beach. Meanwhile an area of low pressure will be gather off the east coast. This could start to spread some clouds back into New England on Sunday along with an onshore breeze. Overall, I like the look of the weekend with partly sunny skies, and highs in the 70's to near 80 and seabreezes at the coast. We will just have to watch for some sneaky low clouds in this set up.
Another cold front will push through Monday through early Tuesday with our next chance of a few showers. High pressure will follow in with less humid air finally and seasonally comfortable air for late August. Late August??? NOOOOOOOOOO!!!!!!
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