Jul 17, 2015 11:14 PM
NH1 Chief Meteorologist
A slow moving warm front is lifting through New Hampshire this morning. Scattered showers and even a thunderstorm will start the day most likely around 5 am-9 am. Scattered showers could last through the mid morning before gradually diminishing by the midday as the warm front cross the State. Humidity will build behind the front with rising dewpoints into the 60's with a Southerly wind. Highs will be in the 70's and Lwr 80's by the afternoon with mostly cloudy skies. The afternoon will be drier with abundant cloud cover. Any breaks of sunshine could spike temps into the 80's across SNH. A cold front will slide into New Hampshire at the end of the day, this could trigger a few late day scattered storms in to the early evening. The best chance of that will be in the North and west portions of the state. I think drier conditions should develop at the coast line during the afternoon, but the clouds will remain with temps in the mid 70's at the beach.
Clouds will begin to break Saturday night with some overnight clearing possible. A front will remain stalled over NH, but much of the state will remain on the warmer, humid side of the front Sunday. Sunny to partly sunny skies are expected Sunday with highs in the 80's and even some lwr 90's will be possible! Factor in the humidity, and it will feel more like 95-98 Sunday. Definitely the best beach day of the weekend! We will have to watch for an afternoon thunderstorm to pop up in the afternoon likely sometime around 3-7 PM, which could come with a briefly heavy downpour and some lightning.
The warm humid airmass will remain in place right through Monday. This will be a day we will have to watch for the potential for some severe weather to develop. A slow moving cold front with plenty of available moisture and energy ahead of it will slide through during the day. this will have the potential to trigger scattered storms, downpours and maybe some severe storms. We will have to keep an eye on this through the weekend.
Once this front is off the coast, humidity will fall Tuesday, but the heat will remain even behind this cold front. Highs on Tuesday and Wednesday will be in the 80's to near 90. A weak front will push through Wednesday with more sunshine for Thursday and Friday with temperatures remaining in the 80's. This will be the hottest air of the summer so far. Start making plans on how you will stay cool in the upcoming stretch! Have a great weekend!
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