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Jun 9, 2015 12:57 AM

NH1 Weather Insider: We've got some warmer weather on the horizon

NH1 Chief Meteorologist

After a pleasant feel this past weekend, and temperatures running below normal for much of the month of June, it is going to start to feel more summer-like around here the next few days.

A warm front lift through New Hampshire Monday night, and a more humid airmass will be in place for Tuesday. Abundant cloud cover will also rule the day. With winds from the SSW high temperatures will mostly be in the mid 70's, with a few locations which could reach the upper 70's with any breaks of sunshine. Dewpoints will also be on the rise into the mid-60's by afternoon. So he have the heat and available moisture, all we need now is the lift in the atmosphere to trigger thunderstorms. There will be a very slow moving cold front crossing from west-east through New Hampshire Tuesday. The front will trigger scattered storms in western New Hampshire during the late morning. Of more concern, is a line of thunderstorms which will form along this front during the afternoon hours. There should be more available instability in the atmosphere during that time of day for the potential for this line of storms to become strong/severe with the potential for damaging winds, hail, heavy downpours and lightning. The best timing for this would be between 1-5 PM. After 5 PM, the front will still be lying across SNH, so there will still be the risk of scattered showers and storms into the early evening hours Tuesday, but likely not quite as strong without the heat from the sun.

By Wednesday, the cold front will push off the coast, westerly winds and sunshine will help to push temps into the Lwr-mid 80's with high pressure lying to the SW of New England. Dewpoints will feel a bit more comfortable as well, so a great summer day over all. Another cold front will begin to slide through on Thursday. There are questions on how quickly this front will slide through. If it moves through quickly Thursday morning, no problem, early clouds to partly sunny skies. A warmer day is likely in the middle-upper 80's. If the front is slower, and waits to pass until afternoon, we could see a better risk of an afternoon thunderstorm and maybe some severe storms. It appears the best chance of that will be in Southern New England. Drier air again returns on Friday, with weak high pressure. Temps will remain warm through the end of the week. In the Lwr-mid 80's Friday.

The upper level flow of winds will be moving fast over our heads by next weekend. A more potent low track along a stalled front south of the Great Lakes and through Southern New England Friday night-Saturday morning with a period of rain and thunderstorms. The rain seems fast enough in this progressive flow, that the rain will keep moving to salvage Saturday afternoon with mostly dry condition. Sunday looks to be the pick of the weekend with building high pressure behind the disturbance and highs in the 70's and Lwr 80's to kick off next week.


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