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Oct 24, 2016 10:41 PM

NH1 First Alert Weather: Cool Blast Of Air Arrives

NH1 Chief Meteorologist

National Weather Service Text Product Display Another breezy, but much cooler day can be expected Tuesday. While upslope rain and snow showers will diminish in coverage in the mountains compared to the weekend. They will continue on and off throughout the day across the higher north facing summits, with even some light accumulation possible. Some sunshine can be expected elsewhere across the state, especially during the morning. Skies will become partly cloudy with the heating of the day and the cool pool of air aloft. Highs will be about 10 degrees cooler than Monday. Some clouds will linger in the persistent cool cyclonic flow with a trough in the Northeast this evening. It will be a chilly Tuesday night with lows ranging from the upper 20s to lower 30s. With a bit less wind tonight...we may finally be able to officially end the growing season in Rockingham county with the potential for frost early Wednesday morning.

Cool cyclonic flow will remain over the region on Wednesday providing for brisk and chilly weather, but less wind. Plenty of sunshine can be expected, but there will be more across northern zones. A very cold night is expected Wednesday night as high pressure moves over the region. Northeastern zones may hold onto some clouds throughout the night and would allow temps to not go as low there. However, southern and western zones should see clearing skies and lows in the 20s over a pretty widespread area.

An area of low pressure and warm front will approach early on Thursday. After a little early sunshine, clouds will be increasing Thursday. Showers will be spreading from west to east during the mid-late afternoon hours. The air over us will be cool with highs in the lwr-mid 40's. It will also be cold enough across portions of central and northern NH as well as the western ME mountains to allow for accumulating snow later Thursday afternoon and night...especially in areas above 2,000 feet. Some lower elevations across SW/W NH may also see some snowflakes and perhaps a light coating of snow for a brief time before a mix to rain. The rest of the region (central and south) will see rain due to warming surface temperatures. There is an outside chance that a couple of zones in NH could see several inches of snow Thursday night. Thereafter, the column may warm enough to allow to a transition to all rain most everywhere. The rain could be heavy at times, especially Friday morning. Thereafter, a couple of weaker systems may affect the area late Saturday and Saturday night. A breezy drier NW winds will follow in behind for Sunday.

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Concord, NH
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