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Hazy Humid Weather Returns…Watching for Showers

By Meteorologist Joe Joyce, WBZ-TV
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Joe Joyce

Joe Joyce, WBZ-TV meteorologist

Rising dewpoints today with a light east wind. Dewpoints in the 60’s with early morning lows in the 60’s have helped to create fog and low clouds from SNH into Northern MA this morning. A more humid feel to the air, but without the heat in place it is not as uncomfortable. In fact, the light onshore wind will help to keep temps in the 70’s and Lwr 80’s today. Cooler temps confined to the coast with warmer temps to be found further inland, especially where there is sun. While we have seen some sunshine out there, high-mid level clouds will continue to stream from west to east today for mixed skies. Plenty of clouds north of the Pike and at the south coast. At times cloudy skies, other times there will be breaks of sun. There is even the potential for a brief pop up shower or two further inland. Overall, it is a decent day and we are still loving the cooler airmass with whatever weather may come our way.

A stationary front remains off our south coast. A steady light onshore wind on the cooler side of the front remains, along with a high astronomical tide because of the full moon has the National Weather Service posting a coastal flood statement about the potential of some minor coastal flooding/ splash over for typical flood prone shore roads during the time of high tide at midnight tonight. With a tide running close to 12 feet, Towns like Revere, Winthrop, Nahant, Boston Harbor and Scituate appear to be the most vulnerable for the splash over. I found this a bit interesting because of the light wind currently in place. It is something to look for if you happen to be up at that hour and along the coast.

This stationary front will start to lift northwards as a warm front tonight into Tuesday with thickening clouds and a risk of showers. Showers tonight should be very scattered and confined to western New England with lows in the 60’s . With the warm front over us Tuesday, it will turn more humid with dewpoints in the Lwr 70’s, clouds with developing showers, embedded thunderstorms will be possible with some heavier downpours. Tuesday will be our most unsettled day of the week. It looks like the best chance of heavy rain will be found inland away from the coast, especially in northern and western and central New England, where we could see some localized flooding in any downpours. The warm front will proceed to wash out over us Tuesday night with showers ending. A cold front marching to the coast by Wednesday morning.

Looking ahead to the midweek, I have to say I am more optimistic than I was yesterday looking at our computer models. Yesterday, it appeared this front would get hung up with a another wave of low pressure to keep the showers going through the end of the week. That is not the case today as we are seeing good agreement that this front will push far enough off the coast for building high pressure to settle in bring the real refreshing humidity you are looking for Wed-Thursday and Friday. This should be a great stretch of weather…as long as that front stays far enough off the coast.

There are still questions how exactly the weekend is going to play out. Temps will be warming and becoming more humid…slow moving cold front will approach in the Saturday afternoon which could trigger a strong PM T’storms. Sunday is looking more unsettled with a wave riding along this stalled front for the risk of more showers or storms into Sunday with the potential for more severe weather.

This is what happens with a trough in place across the Northeast. A more active unsettled pattern. Times of drier air follows in behind passing fronts, which can slow, stall or keep moving depending on the upper level flow. Timing the short waves in the upper flow is key to timing the showers. For now, it is humid…but at least it is cooler…and there is more dry air ahead before the week is through!

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