Rain Shifts From West Today to East Tomorrow

by Meteorologist Joe Joyce

The focus of today’s rain will be in western New England from the Hudson and CT Valleys. 4-6″ of Rain fell in Northern New Jersey, Long Island and New your City this morning. This heavy rain is shifting north into CT and eventually into Western MA this afternoon. Showers will likely push into Worcester county. The closer to the coast you are, the drier you will be thanks to high pressure off shore. Despite a little light rain early, a good portion of the day should remain dry with temps in the mid 70’s. Hard to completely rule out showers completely today for eastern sections…as a few showers could break off the main batch out west from time to time. Either way, a cloudy, humid and tolerable Sunday if you have to be outdoors in eastern MA.

Upper level winds are directing this moist humid flow up the eastern seaboard. Thunderstorms with torrential rain are forming from CT down to the Chesapeake Bay.  A trough is digging in, which will allow a low to drift from the Ohio Valley towards the mid-Atlantic and track near the south coast of New England Monday and Monday night. A moist low level jet is providing the lift for heavy downpours in these area. As this shift east tonight…so will the axis of heavy rainfall.

Showers will still be mainly concentrated west during the evening hours, but there will be a tendency for the rain to start to fill in and become heavier for all later tonight…especially after midnight for those who live in eastern MA.Heavy rain is likely overnight through Monday AM before tapering to showers in the afternoon..still locally heavy rain will be possible inland. Cool onshore winds will keep temps in the upper 60’s and Lwr 70’s. Rain could be heavy for Monday mornings commute, so expect delays and the potential for urban flooding and heavy downpours.

The low will weaken by Monday night with lingering showers, drizzle or fog and pull off the coast. A stationary front off the coast Tuesday morning with a secondary low following behind will keep abundant cloud cover as well as the risk for a few showers…but not nearly as wet as Monday. In fact we may start to see breaks of Sun by Tuesday afternoon if we are lucky. Cool onshore winds will keep temps in the Lwr-mid 70’s…breaks of sun will be needed to reach the mid 70’s. By the time this all winds down, there is the potential for 1-3″ of rainfall, with locally heavier amounts up to 4+ near CT because of these tropical downpours.

High pressure will become fully established by Wednesday with temps back to near 80. Stay tuned to the Doppler Radar the next day or two before heading out just to make sure you know what you may be heading into!

Expected Rainfall in the next 5 days

p120i12 Rain Shifts From West Today to East Tomorrow

  • irish_guy


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  • Italo

    Winds gusting off the coast will mean we’ll never get near the mid-70s — 64 to 66 would be more like it. That’s OK for a couple of days — it looks like it teased us at first, but we certainly did have our summer again this year, and a lot of beautiful days as proof of it. :)

  • Matt Souza

    Italo i have a bad feeling of that east and northeast wind will draw alot of moisture and give eastern sections a good 1-3 inches of rain which would mean some minor flooding and small streams and rivers possibly going to their banks or higher. . those east winds also will cause shoreline erosion .and possibly some larger wave action.

  • smm77

    Drier air seems to be winning over at the moment. Have seen breaks in the clouds and even peaks of sun in the Blackstone, MA area.

  • Matt Souza

    For those who are hoping for some more summer weather we might be in luck for next weekend and the following week. also as of right now there is nothing impressive on radar.

  • MrBadExample

    Am I am naive to think that this system might get shut down by meteorlogical factors not taken into consideration by the models. May we avoid “inches of rain” forecasted because meteorlogy 101 was foresaken in favor of computer models. Hope so. Kind of reminds me of those “buy canned foods” winter storms that I have the folks quaking but I end up using a broom to clear the walkway.

    Anyone have Bob Copeland’s telepone number? I really need to speak to someone who knows what the heck is going to happen.

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