Jul 29, 2015 11:53 PM
NH1 Chief Meteorologist
After record breaking warm in the lwr-mid 90's Wednesday, another hot and humid day is ahead! But unlike Wednesday, clouds will be increasing during the afternoon which should help to slow the afternoon warming. Still, with morning sunshine and a winds from the SW, highs will be climbing into the upper 80's and Lwr 90's by afternoon with dewpoints in the 60's and Lwr 70's. A cold front will be pushing into New England during the later part of the day with a line of showers and thunderstorms. Instability will be increasing ahead of these storms. The Thunderstorms will feed off of the hot and humid conditions in place ahead of this cold front. The storms will begin to push into western New Hampshire around 3PM and spread eastward with the main axis of thunderstorm activity around 4-7 PM. These storms will be loaded with moisture, so I expect torrential downpours with these storms. Some of the storms will go severe, meaning the risk for damaging gusty winds of 58 mph or greater or hail 3/4" in diameter or greater. It will be an interesting afternoon as some of our models are showing a pooling of energy/instability pooling across central and and southern New Hampshire which could be in a bulls eye for severe storms for the late afternoon Thursday.
As always, the good thing about thunderstorms...they come and they go. This front will be a perfect dividing line between humid hot, oppressive air...to the more comfortable less humid air which will settle into New Hampshire later Thursday night through Friday. Friday looks like a gorgeous day with sunshine, dewpoints in the 50's but temperatures will remain warm in the 80's. A broad upper level trough will shift over us for the weekend keeping all the humidity away and seasonal late July temperatures in the mid 80's. Outdoor weather plans this weekend are looking wonderful! What will will have to watch for is one piece of energy which will slide into the trough and may trigger a brief afternoon shower or thunderstorm Saturday afternoon. The risk is low, so I prefer to not even talk about it...but there is a chance, especially in the northern mountains for a brief pop up shower. Sunday we will be right back inot the sunshine and comfortable air and highs in the 80's.
Don't forget Friday Night will be a FULL BLUE MOON. Moon rise is around 8:08 PM. It marks the 2nd full moon of the month which is a rarity in general. The next time we will be able to squeeze two full moons in a month, we will have to wait until January 2018. I wonder what we will all be doing by then? I wish time would slow down...especially this summer! But here we are...the first weekend of August! Let's make it count!
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