Jul 29, 2015 12:24 AM

NH1 Weather Insider For Wednesday July 29, 2015

NH1 Chief Meteorologist

Plenty of more heat and humidity on the way which will last through the midweek. After a summer which has been lacking of bonafide summer heat, it is long over due to finally have our first heat wave of the summer at the end of July. Wednesday will have plenty of sunshine along with light WSW winds. Highs will range in the upper 80's and Lwr 90's with dewpoints in the 60's to near 70. This will give us a heat index which will make it feel like 95-100 outside during the afternoon. Obviously, it is important to stay cool, drink lots of water and avoid strenuous activity in the midday sunshine in this 3 day heat wave.

A weak backdoor front will be sliding from Maine into NH during Wednesday afternoon. This could be a trigger for a chance of an afternoon shower or thunderstorm across the north country. Otherwise, most of the region will remain hot and muggy through the afternoon with skies becoming partly sunny during the second half of the day.

The heat and humidity will peak across New Hampshire Thursday as a cold front approaches from the west. Highs again will be in the Lwr 90's, but again it will feel (the Heat Index) mid-upper 90's with dewpoints in the Lwr 70's providing a more oppressive feel. The cold front will be a trigger for some afternoon convection to fire up. The storms will feed off of the hot humid air in advance of the front. There will be the potential for a few of these storms to briefly be strong/severe. The line of storms will be most likely between 3-7 PM Thursday. Once this front is through, a less humid airmass will arrive for the end of the week and for the weekend with more comfortable air with dewpoint in the 50's. Skies this weekend should be sunny to partly sunny with highs in the 80's near 90. Overall, so far it is shaping up to be a very nice outdoor weekend.

Next week a slow moving front will approach. The heat will try to return back again Monday and Tuesday where highs could climb back into the Lwr 90's with rising humidity again. These conditions will come with an increased risk for a few scattered showers and storms and the potential for some severe weather. Stay cool New Hampshire!


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