May 27, 2015 12:03 AM
NH1 Chief Meteorologist
Another warm and humid day Wednesday with partly sunny skies, dewpoints in the 60's and highs climbing back into the 80's nearing 90 again. Most of the afternoon will be dry, but we will be watching for the chance of a few scattered showers and thunderstorms pushing into New Hampshire towards the end of the day. It appears the best chance of any thunderstorm activity will be after 5 PM...but you can always have a very branch off before hand in the mid afternoon, ahead of the main batch. The best chance of thunderstorms will be from a line crossing though VT and into NH between the hours of 6-10 PM. The best chance of strong/ severe storms will be in Northern and Western New Hampshire where a more favorable environment will be in place for storms to hold together. Any storms which can hold together after crossing the Connecticut river valley will come with some heavy rain, gust winds, and maybe some small hail. The areas most prone to a stronger storm Wednesday night will be the White Mountains, the Upper Valley, the Monadnock Region...and maybe the Lakes region...Anything south and east of these parts will see showers move though in a weakened state tomorrow night. There are some who may not see much if any rain at all...especially for areas South and east of Concord.
Clouds with areas of fog will linger Wednesday night with lows in the Lwr 70's. A cold front will push through Thursday. There are questions in the timing of this front. If it pushes through during the morning-midday...there will be just a passing shower. If the front moves through slightly later, a better chance of a t'storm with more heat energy from the sun. Any storm could produce a severe t'storm. I am leaning toward this front moving through pretty quietly with cloudy to partly sunny skies, a cooler day in the Lwr-mid 80's. Falling dewpoints by the end of the day will make for a more comfortable feel and a nice end to the week.
Weak high pressure builds in for Friday with sunshine, comfortable and cooler air with highs near 80. A sea breeze will keep temps in the Lwr 70's at the beaches. But warmer air will quickly return for Saturday. It looks like Saturday will be a great beach day with sunshine and warm breezes and highs climbing back into the 80's to near 90. A much stronger cold front will be arriving Saturday Night. The front has a real chance to provide some beneficial rainfall to a large portion of New Hampshire. This front will also come with the possibility of some severe weather as it moves through Saturday night and early Sunday. After a damp start early Sunday morning, this front should be moving fast enough that sunshine will be returning during the day Sunday. Temperatures will be cooler with a beautiful refreshing airmass with temps in the 60's to take us right into the start of next week.
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