Jul 23, 2015 11:28 PM
NH1 Chief Meteorologist
Well, what can I say...the weather is about to get a little more interesting and less repetitive. Unfortunately, the weekend is upon us and the weather is about to go downhill a bit. Unsettled weekends in the middle of July are not my favorites. So let's get started with Friday. A backdoor cold front will be sliding into New England today. It marks the leading edge of cooler air which will push from the Canadian Maritimes into Maine. Friday will start off with a little sunshine. Any sun will fade with building clouds as the backdoor front approaches. Highs will be in the 70's. As the cooler air clashes with the warmer air in New England, along with steep lapse rates with much cooler air aloft...scattered showers and a few thunderstorms will begin to pop on and off starting around midday and continuing through the early evening. A few may contain heavy downpours, lightning and even some small hail. Severe weather is not expected. But certainly a few of these downpours will have us running for cover. Any showers will diminish for a quiet but cloudy Friday night.
This front will push farther into and stall right over us if you can believe it. It will lie right over us much of the weekend too...the dividing line between cool 60's and warmer 70's to our west. Winds will shift to the east behind this front which will bring in a cooler wind off the water and will spell doom and gloom for any beach goers this weekend unfortunately. Low clouds could be trapped over us Saturday with a light East wind. Highs will be near 70-75 inland and 60's at the coast. Clouds should beak for some limited partial sun inland, but my fear is these clouds hold tough with front stalled over us and we could see a few spotty showers or areas of drizzle develop Saturday...especially across eastern NH. I really want to lean optimistic Saturday and go with cloudy to partly sunny skies. But I have reservations. Either way, Saturday will be the best day of the weekend.
The stalled front will turn into a warm Front Saturday Night into Sunday. As previously mentions, we will likely remain on the cooler side of this warm front much of the weekend. Showers will develop on this warm front late Saturday night and into early Sunday. A few early morning downpours will be possible. Meanwhile, more showers will approach form the west along with a cold front during the afternoon. I again would like to lean optimistic and say Sunday will NOT be a washout...with periodic showers. I will stick with that for now...but it does not look like a great day for July weekend standards. ESE winds will again keep temps in the 60's at the coast, mountains, lakes, some lwr to mid 70's possible in SNH if they somehow manage to squeeze into warm sector behind warm front by the end of the day. We'll see. Expect showers on an off...with some periodic steadier rain.
The good news is once this all passes, a flatter flow to jetstream will develop and hotter more humid air will shift into the Northeast for next week. Wait is that good news? Pick your poison. Skies will be partly to mostly sunny next week with high climb to near 90 Tuesday & Wednesday. By Thursday Highs may be nearing 95 if everything goes as planned. That's the latest for now...Grey skies are gonna clear up...so put on a happy face!
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