Jul 13, 2016 12:04 AM
NH1 First Alert Weather: The heat arrives in NH for a scorching day
NH1 Chief Meteorologist
Partly to mostly sunny skies and increasingly humidity on Wednesday with an upper ridge sitting over the Northeast. The best chance for a late day shower or thunderstorm will be over the elevated terrain across the North country. I expect any t'storm activity will be widely scattered given proximity of the upper ridge. It's all about the heat today! High temperatures will be in the Lwr 90's...with 80's at the coast. Skies will be partly cloudy and humid Wednesday night with lows in the 60s to near 70F. A few showers will be possible...especially in the predawn hours on Thursday.
Models continue to have some difficulty in handling the weak short waves as they attempt to break down the large surface ridge and become rather inconsistent in their solutions with time. For Thursday...all models are showing a weak wave moving northeast along the coast during the day. Thursday will be more humid with more cloudiness, slight cooler 80's, and only slight chance of a few scattered showers early with this disturbance as it moves northeast. The more significant feature will be an approaching cold front from the northwest. There will be plenty of moisture available for any developing storms. Any scattered storms which develop in the afternoon could come with some locally heavy rain.
The front should cross the area Thursday night into Friday morning with a few scattered showers/thunderstorms. Drier air starts to move into the region during the day Friday behind the front. Skies will increase with sunshine with highs right back into the upper 80's and lwr 90's. Still a hot muggy day in the neighborhood. Models begin to deviate Saturday with the progression of a secondary front. At this time...Saturday through Monday look mainly dry, less humid with a good amount of sunshine and highs in the 80's. A great summer weekend to look forward to to make up for last! Another frontal boundary will approach late Monday or Tuesday bringing another threat of showers or storms. Signs are pointing to plenty of warmth still in the pattern for much of the nation. The heat is on right through the rest of the month. It's the hottest time of the year...so what can we expect. It is time for the hot & muggies. No way around it. July is also our most active month for thunderstorms too...so we will be watch for that as well!