Saturday May 10 2025 Forecast (8:55AM)

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DAYS 1-5 (MAY 10-14)

Today is the day the current storm system departs, but it’s not going to be a quick process. In a blocking pattern, we often see surface lows interacting with their upper counterparts in such a way that they do cyclonic loops or such things. If you look at the radar, you can see the maturing surface low sending one more lobe of moisture into the region – steadiest rain north of I-90 – early this morning. As I type this blog update, the classic pivot of the precipitation area is already underway, where as the low wraps up and starts to move out, the precipitation instead of moving north and west pivots back around to the east and south, pulling it back across the same areas it already had visited. So we’ll go through that process this morning to midday before we finally dry things out. The heavy overcast associated with the rain-producing portion of the low will thin out from northwest to southeast and other lower clouds will scurry across the sky, born of low level moisture left behind by the rain. But the general trend will be for clearing later today and definitely tonight as dry air finally moves in. This sets us up for a stretch of dry weather Sunday through Tuesday as high pressure builds toward the region Sunday and sits near to just south of our area Monday and Tuesday. We can still see some fair weather clouds sharing the sky with the sun on Sunday as a little colder air lingers aloft. Wednesday, a more general southeasterly air flow arrives ahead of the next low pressure area, but it will still be a generally nice day, with some increase in high cloudiness filtering the sun.

TODAY: Cloudy morning – steadiest rain north of I-90, a break to the south before more showers move through. Breaking clouds / slow clearing trend afternoon from northwest to southeast. Highs 57-64, occurring late-day. Wind variable becoming NW 5-15 MPH, a few higher gusts.

TONIGHT: Mostly clear. Lows 45-52. Wind NW 5-15 MPH.

SUNDAY: Sun / passing clouds. Highs 65-72. Wind NW 5-15 MPH.

SUNDAY NIGHT: Mostly clear. Lows 46-53. Wind NW 5-15 MPH.

MONDAY: Mostly sunny. Highs 68-75. Wind W 5-15 MPH.

MONDAY NIGHT: Mostly clear. Lows 48-55. Wind WSW 5-15 MPH.

TUESDAY: Mostly sunny. Highs 70-77, cooler South Coast. Wind SW 5-15 MPH.

TUESDAY NIGHT: Clear. Lows 50-57. Wind S up to 10 MPH.

WEDNESDAY: Sun and high clouds. Highs 65-72, coolest coast. Wind SE up to 10 MPH.

DAYS 6-10 (MAY 15-19)

A hybrid blocking / partially progressive pattern is expected at mid month. The first half of this period is most likely to be unsettled with fair weather returning thereafter. Temperatures near to slightly above normal.

DAYS 11-15 (MAY 20-24)

Transition from the hybrid pattern mentioned above to a more progressive pattern with a drier trend – brief unsettled episodes – and variable temperatures but no extremes expected.

49 thoughts on “Saturday May 10 2025 Forecast (8:55AM)”

  2. Thanks TK !

    Nicely explained discussion of the current system and its continued evolution.

  3. The social media crowd has the same thing going on as they do with winter. They start judging how the winter is in November. Like if it hasn’t snowed by Thanksgiving: “This winter sucks!” (One month before it arrives).

    Now I’m seeing social media posts and comments about how crappy a summer we’re having. 😉

    1. Interesting. We’re not even at the midpoint to spring yet. Folks these days can’t even keep track of the current season it appears. 😉

  8. Rain factoid #3: Largest rain drop ever recorded.

    The largest recorded rain drop is 8.8mm or about 1/3 of an inch across. It happened in Brazil and also the Marshall Islands. Both occurred in the 1990’s and both were measured by a laser instrument from an aircraft.

    2 points: I assume that by using the word “across” they mean the diameter. I think the one in Brazil had something to do with a fire in the Amazon River Basin and the presence of cumulus clouds.

    One of these has made it to the Guinness World Records. I think it officially became 8.6mm.

    Obviously, this is a vital factoid which will alter your life. 🙂

  10. According to Kelly Ann this morning, since January 1st, 12 of 19 weekends have been wet (rain or snow).

  11. Pouring again in the Silver City.

    4.1 magnitude earthquake near Knoxville. Felt in Atlanta.

  15. While I can’t go on a rollercoaster due to labyrinthitis I’ve always been fascinated by them.

    Here’s a story on the old roller coaster at Paragon Park. I like some of the photographs included in the piece. https://www.boston.com/news/local-news/2025/05/09/a-legendary-108-year-old-roller-coaster-from-mass-is-facing-its-end-again/?p1=hp_secondary

    Who remembers the Cyclone on Revere Beach? I remember it because we lived fairly close to it in Nahant in 1969. That was the year the Cyclone shut down. I believe there was a fire.

    1. Sure I remember the roller coaster at Paragon Park. Been on it many times. Not bad for the time, but didn’t compare to the new modern coasters, however.

      1. Never was into Revere Beach. 🙂
        Only thing good about it was Kelly’s Roast Beef. 🙂 🙂 🙂

        1. I used to go to Revere almost every summer. My mother did as a child. My parents went there when they were dating. 🙂

          My father tried to get me to go with him on the roller coaster but NO WAY! I stayed with my mother on the street lol. Anyway my father enjoyed himself on it after one ride. 🙂

          Of course there was Kelly’s Roast Beef as well!

          1. Revere was very upscale when my parents were children. I’m guessing the same for yours.

            1. Absolutely it was Vicki. Revere started to go downhill by the 1970s. Iirc the 1978 blizzard finished it off. Condos then replaced the rides.

    2. Paragon park was a weekly visit when I was in high school. I don’t do roller coasters. I did go on the wild mouse, I think was the name, once. I still cringe when I think about it

      1. yes, wild mouse.
        it had 90 degree turns and on one stretch it looks like yiur’re going into the ocean and then an abrupt turn to the left. anazing ride.

  16. Thanks TK. 2.7 inches of rain in the rain gauge this morning in Padanaram Village. Impressive considering it rained for less than 12 hours.

  17. Our rain is FINALLY beginning to pivot Eastward. Shouldn’t be too much longer.

    1. Just went outside as it looks like it’s brightening, but a light rain continues. I don’t know whether there were dry slots overnight, but it has essentially been raining for ~20 straight hours in varying degrees of intensity.

      As I’ve said before, such long duration events practically never happen across Northwestern Europe despite the persistence there of frequent rains. I don’t think I ever experienced more than 14 straight hours of rain when I lived in the Netherlands.

    2. Interesting how our snows (what few we get nowadays) always pivots rapidly as far away as possible. This past winter was NO exception. 😉

      1. I’m not a met, obviously. But I think that the past 3 years have simply featured a string of bad luck for snow lovers. When we had long periods of cold, we didn’t get storms. Then when we got storms, we had progressive patterns of fast moving, often moisture-deprived systems in winter. Then, when a system did develop off the coast it was either (way) out to sea or didn’t encounter enough cold air at the coast. Different story inland, as there have been some major snowstorms in (North) Central Massachusetts during the past 3 years.

        By the way, Philip, I hope you’re doing well healthwise. I read about the pain you were enduring. Good luck with that.

      2. That’s not really true. There’s a very strong misconception about rain over snow. This just is not the case.

        Listen to the mets here. We explain this all the time. 🙂

  18. After reading the discussion of roller coasters, I can’t resist putting in a plug for the Lunenburg Historical Society.

    In a little over a month, our new book titled “Whalom Park” will be released as part of the Images of America series. You can pre-order your copy now!
    https://lunenburghistory.org/

    2. My best high school friends family had a summer home on a lake/pond in lunenburg. We went to Whalom regularly. Mac’s and my company Also had a family outing there. Great place. I seem to recall you shared a fascinating power point (maybe) about whalom a while ago

      1. It won’t be. But it will be reduced to just areas of “abnormally dry”. See previous answers about this.

    1. Sure been chilly there! MSM never talks about that stuff. This is where the internet is a plus!

      1. Indeed.

        Looks like quite the snowstorm there right now. It’s 32F. Overnight it’ll dip to 24F, and tomorrow night down in the teens. Should creep to slightly above freezing during the day by late this upcoming week. They will eventually have a 6 week summer with highs sometimes reaching 70F, though it’s usually at its peak in the 50s/low 60s. Then a brief autumn starting in early to mid August and it’s back to winter by the end of September/beginning of October.

  21. The sutton tractor pull was postponed. TK did your event in Milford take place?

    1. It did! It was a girls youth soccer game on a turf field. They played it with no problem in a light drizzle / sprinkles. 🙂

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