May 3, 2016 1:40 AM

NH1 Weather Insider with Joe Joyce: May 3, 2016

NH1 Chief Meteorologist

Chalk this week up as "One of those Weeks." It is going to be one of them, so it will be crucial to look on the "Bright side of Life!", Monty Python used to say. Our Monday was wet and cool in the 40's. Our Tuesday will be cloudy, and milder in the 50's. See, not so bad! A wave of low pressure is tracking south of New England today on a stalled front. Rain is spreading into Southern New England for a fairly wet Tuesday, but it will not be able to push farther north. Much of New Hampshire will have a dry Tuesday. There is a slight risk a few light rain showers could graze extreme southern New Hampshire during the morning, but otherwise it is clear sailing with grey skies today and a light onshore wind which will keep it cooler at the coast. The western valleys will have the best chance at 60+ today, but a few breaks of late day sun will be needed.

This week will be prolonged stretch of cloudy, cooler, unsettled weather. A deep upper level trough is digging in on the east coast, all within a large scale upper level blocking pattern which has been in place the past two weeks making for a variety of weather, and at times extreme severe weather across the midwest. With energy pouring into the trough, and a SW flow up the east coast, this will help to create a series of lows which will track near or close to New England this week. Temperatures will average slightly below normal in this regime. There will be times when it is dry, but there are going to be a few times of showers which will be fine tuning along the way.

High pressure over the Canadian Maritimes will help to reinforce the cool onshore flow, yet also supply the dry sinking air helping to keep NH dry Tuesday into Wednesday. While most of the rain will stay in Southern New England Tuesday, our next chance of showers will come later Wednesday afternoon as a low generates off the Mid-Atlantic coastline. Periodic rain showers will develop for Wednesday night through Thursday midday, along with cool NE winds at the surface. Not ideal weather.

Friday looks dry for now with low clouds locked in place. Another low will gather south of New England and spread rain into Southern New England Friday afternoon. A few showers may break off and push into NH Friday night. The low will weaken and fall apart Saturday, but the clouds will remain, as well as the risk of a periodic stray shower. High will be be milder this weekend in the Lwr-mid 60's. A cold front will sweep through during the early morning hours on Sunday with a few more showers. Behind this front will be a flood of milder dry air with skies becoming Partly sunny Sunday in the 60's. Temperatures will be climbing into the 70's at the start of next week. Tues-Wed Thurs next week look very mild into the 70's under a developing upper level ridge. Unfortunately, that ridging will not stick. A trough will be returning to the pattern by May 14th in the Northeast, with a return to slightly cooler temperatures.

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