A nice weekend to enjoy with high pressure sliding down from Canada and remaining parked off the coast through Sunday. The jetstream is steering NW winds aloft supplying a comfortable dry airmass with fairly typical temperatures for this time of year with highs in the Lwr 70s inland, and cooling onshore winds at the coast keeping temps in the 60’s at the beaches. Sunny to partly sunny skies for Saturday, as fair weather clouds should start to pop this afternoon, and may build just enough for an isolated shower.
Clouds will fill in tonight keeping lows mild near 50 overnight. Sunday will start off with clouds. With the high off the coast and light southerly winds at the surface, it will be a mostly dry day as well. Clouds will begin to break by midday for at least a little partial sun during the afternoon. Highs again will stay in the 60’s at the coast and some Lwr 70’s inland…depending on sunny breaks. Any breaks of sun could help to trigger a pop up isolated PM shower inland.
As a trough in the northeast begins to lift away at the end of the weekend, A warm front will approach Sunday night. This could trigger a few more light scattered showers through early Monday morning. Dewpoints will rise behind this front along with warming SW winds bring temps back into the 70’s for Monday with cloudy to Partly Sunny skies. It will be brighter and warmer by afternoon as we move into the warm sector.
An upper level ridge in place along the east coast will begin to weaken and flatten over us creating a more zonal west to east flow over New England which will help to slow the weather pattern down right over us. We will find ourselves in the dreaded “Transition zone”…the place where the cool from the north, and the warmth from the south face off. It can’t be good!
Tuesday will be a warm humid day with SW winds, rising dewpoints, Plenty of clouds and highs nearing 80. A cold front will sag to the south which will likely help to trigger late day showers and thunderstorms. This front will stall over us Wednesday with showers and cooler winds off the water which could bring temps back down into the 60’s.
By Thursday, the stalled front will attempt to lift back north with a very warm and humid airmass still in place, clouds, breaks of sun with highs back into the 70’s. A low from the west will be shifting east for Late Thursday and Friday and will come with the risk of triggering more scattered showers and thunderstorms into Friday.
Looking towards the weekend there are some complications with how it will eventually playout. The Euro model has an upper low swinging a trough into the northeast, merging with the southern stream and sweeping all the humidity and showers away for a nice cooler dry Memorial Day weekend with temsp in the 60’s. The GFS has the two streams not merged until Sunday, which allows for another round of showers to ride up the coast along with a developing low to keep the risk of showers into next weekend. This would not be the ideal way to kick off Memorial Day weekend. This would be quite a stretch of cloudy unsettled weather if this all comes to fruition. We could be looking at close to a week of clouds and periodic showers and storms. It won’t be rainy the whole time thoough.
Either way, enjoy the comfortable air this weekend. Warmer, more humid times will be arriving soon. This humidity is coming with abundant cloud cover, periodic showers, thunderstorms with the occasional downpours. It is an unsettled pattern which will last though next Friday at least. The Memorial Day Weekend holds promise…but we will have to watch which way the trends are heading…