Thursday June 10 2021 Forecast (7:19AM)

63 Comments

DAYS 1-5 (JUNE 10-14)

With the early-season heatwave behind us, we now focus on a new pattern. This one is cooler and lacks high humidity, but will also be somewhat unsettled, but not really wet. Does that make sense? It will. Read on. For several days we had a ride of high pressure parked offshore of the Atlantic Coast, the famed “Bermuda High” in its early season form, and that resulted in our heat, of course with regional exceptions, like the cooler South Coast. Now, we’ll be in a pattern where the overall fair flow above us is mostly west to east, but around the base of a mean trough of low pressure in eastern Canada. Through Friday, surface high pressure to our north will provide a generally light easterly air flow as low pressure heads out well south of New England later Friday along the frontal boundary that went by yesterday. Once upon a time it looked like that system may threaten us with rain, but that won’t be the case. We will have to look to the north though for an approaching disturbance by Friday night which will pass through by early Saturday, maybe resulting in a few light showers across the region. This system will reinforce the cooler air that arrived overnight, so the net result is we’ll have three days of near to slightly below normal daytime temperatures today through Saturday and with generally rain-free weather. High pressure at the surface shifts offshore and a disturbance approaches from the west Sunday, and that day will be a bit warmer and slightly more humid here. We will have to watch for some shower and thunderstorm activity Sunday afternoon and evening, and with this being a somewhat more vigorous disturbance we’ll have to keep an eye out for stronger storms. Upper level low pressure will strengthen a bit in southeastern Canada, just north of New England, through Monday when we may see another round or two of showers and possible thunderstorms with a couple low pressure troughs swinging through the region.

TODAY: Mostly sunny. Highs 75-82, coolest eastern coastal areas through Cape Cod. Drier – dew point falling to the 40s. Wind NE 5-15 MPH.

TONIGHT: Clear inland, coastal clouds possible. Lows 50-57. Dry – dew point middle 40s. Wind NE to E up to 10 MPH.

FRIDAY: Partly sunny. Highs 65-72, coolest coast. Dry – dew point upper 40s to lower 50s. Wind E 5-15 MPH.

FRIDAY NIGHT: Variably cloudy. Chance of a few showers overnight. Patches of fog forming interior lower elevations. Lows 52-59. Dew point lower 50s. Wind E under 10 MPH.

SATURDAY: Partly cloudy. Chance of a few showers early morning. Highs 67-74, coolest coast. Dew point lower 50s. Wind E 5-15 MPH.

SATURDAY NIGHT: Partly cloudy. Areas of fog especially lower elevations. Lows 52-59. Dew point lower 50s. Wind SE under 10 MPH.

SUNDAY: Partly sunny. Chance of showers and thunderstorms afternoon and evening. Highs 72-79. Dew point near 60. Wind S 5-15 MPH.

SUNDAY NIGHT: Partly cloudy. Patchy ground fog. Lows 55-62. Dew point lower to middle 50s. Wind W up to 10 MPH.

MONDAY: Variably cloudy. Possible showers and thunderstorms. Highs 68-75. Dew point middle to upper 50s. Wind W 5-15 MPH.

DAYS 6-10 (JUNE 15-19)

Overall pattern features a low pressure trough in southeastern Canada and a mostly west-to-east air flow over New England. Temperatures near to slightly below normal early to mid period may spike briefly around June 18. A few rounds of showers and thunderstorms may occur with passing disturbances but much of the time will be rain-free.

DAYS 11-15 (JUNE 20-24)

As we welcome summer with the solstice late on June 20, the overall pattern looks similar with a general west to east flow and still a tendency for a little troughing in the northeastern US. This pattern would produce temperatures not far from normal, maybe a touch below normal overall, and a weak disturbance or two providing a shower threat with overall dry weather.

63 thoughts on “Thursday June 10 2021 Forecast (7:19AM)”

      1. I think he has a gift. He just texted me that he sent a bunch of his photos into channel 5. I hope they use one of them.

    1. and a refreshing one at that. I happen to be sitting by a north facing window and the breeze feels so good !

  12. This post is meant to continue discussion on Logan´s temp readings, not to be causing any trouble 🙂

    So, there´s no doubt Logan´s temp is running 1 to as much as 3F higher than other reporting stations and the 4 major climate stations in Southern New England. You can also see it in the month end anomolies.

    I think the thing I am seeking more clarity on is, is this all the result of a sensor needing calibration or is it something else.

    So, at 10am today, here are some temps:

    Logan: 70F, Beverly: 70F, Plymouth: 70F, Portsmouth, NH: 70F.

    Of course, what is the big weather change today vs the past 5 days, an ocean breeze compared to a land breeze.

    Logan, looking at a google map, is pretty much east of downtown Boston.

    Boston, according to emporis.com, has 845 existing buildings.
    To put this into perspective, Lowell, MA has 47 existing buildings, Lawrence has 43 existing buildings, Providence, RI has 157 existing buildings, Quincy, MA has 90 existing buildings, etc.

    According to epa.gov/heatislands, ¨daytime temperatures in urban areas are 1-7F higher than temperatures in outlying areas and nighttime temperatures are 2-5F higher¨ The distance from downtown Boston to Logan airport is 2.9 miles.

    So, I do feel as though the noticeable difference in Logan´s temp is more discussed during heat waves than in other situations. My instinct tells me, that is when it is more noticeable.

    We know that heat waves or individual hot days in New England require anywhere between a good amount of sun to full sunshine and some component of a westerly breeze, usually between NW and SW directions.

    I´m just wondering how much of the 1-3F difference we see is some of Logan feeling the Boston heat island effect and also, on sunny days, feeling the heat effect of that sunshine heating a lot of square feet of dark runway? If that is the case, it is good to have a location that captures the effects of heat islands and dark paved areas. Perhaps though, knowing this, it would be good to keep Logan´s data out of the climate calculations, if we presume that it usually is going to be warmer than 99% of other locations.

    I know, time for me to be back to school. 🙂 🙂 🙂 🙂 🙂 🙂 🙂

    1. The problem with blaming the heat island effect is that Logan at any given time is usually 1-3 warmer than locations in and around downtown Boston, especially at night when it should be cooler due to being out in the open away from all of the buildings,

      1. That is evidence that would be supportive of it being more the sensor.

        Do you have a link for the temps in and around Boston. If I recall correctly, you have posted a map of very local Boston current temps before. I would enjoy following. Many thanks !!

          2. This is very cool. I can’t find density but was too busy playing with it. I like that you can touch an area and get more info. Radar pro does this, but this is more user friendly

            SAK do you know where at Logan the sensor is located?

            1. Vicki, when you click on the link, on the right side, you will see a display titled overlays. Just under that, click observations.

              Once you have done that, put the cursor over Boston to really zoom in. If you really zoom in to Logan Airport, you´ll get a pretty good idea where the sensor is, unless they just deferred the ob to the middle of the Airport.

              Anyhow, now go back to the display titled Overlays. Just below it, it should now say observations. About halfway down is density, click all. Good luck.

              2. Got it, Tom. So it isn’t on a runway but a fair amount of road. I do love stuff like this.

                1. That is actually fairly close to the actual position of the ASOS. Using Google maps satellite view, can you zoom all the way in and see that the actual ASOS is about 50 yards to the east of the spot on that map, on a grassy area in between the taxiways and runways.

    2. Thanks, Tom. I had forgotten to post this two days ago as I was sidetracked with storms. I’m thinking along your lines. And I also recall last year after TK said Logan was calibrated that several commented that it seemed to be reading too low.

      – [ ] Start at my house ….open area, no trees, southern exposure 91 deg (387 ft)
      – [ ] 1.9 miles past my house tree shaded road 88 deg (466 ft)
      – [ ] 3 miles further and out of trees 89 deg (597 ft)
      – [ ] 0.4 mile tree lined and along a pond and marsh 87 deg (456 ft)
      – [ ] 1.6 miles of lightly treed road and no water 88 deg (725 ft)
      – [ ] 2.8 miles to center of town 88 deg (696 Ft)
      – [ ] 3.4 miles wooded streets no water 87 deg (597 ft)
      – [ ] 1.0 mile no shade no water 88 degree (775 ft)
      – [ ] Back to house. Temp is 88 until I turn only my street and literally about two car lengths later temp shoots to 91……reminder that all trees are young and short and literally offer no shade. So is the temp 91 even though I didn’t see that anywhere else since Sutton is a well established wooded town with lakes, ponds, marshes dotting it. The answer of course is yes. But within very short distances the temps vary from my home and from a multiple other situations ….all very close to each other

      Note: The return trip has the same readings in the same places on every road with the same temps

        1. Thanks. I figured it is a great example of how temps change quickly depending on surroundings, etc. We are always warmer than immediate areas. In winter, the center of town and area around it are several degrees colder than much of the town. This is something I mention here often

          I’m not saying Logan is wrong. And I’m not saying it is right. Truly the only way to find out if Logan is accurate is to sit by the sensor.

  13. It is a horrifically sad day for the Worcester Police Department, for all law enforcement brothers and sisters, for all of Massachusetts. Sutton PD just posted this photo.

    The man is a well recognized resident of Sutton. His wagon and team will have the honor of escorting Officer Familia through today’s services. Officer Familia’s casket was transferred to this historic wagon (the caisson) to be brought to the church this morning.

    https://imgur.com/a/rrgpXQn

    1. Incredibly sad. Thinking also of the teenager´s family in the Worcester area. And the family of the 19 year old woman killed yesterday on the north shore wrong way collision.

      1. I was VERY remiss in not mentioning the boy who drowned and his family. I was typing through tears that have yet to stop today. But that is no excuse.

        2. Oh no Vicki, I didn´t mean it that way. Just adding on to your original post, which I´m glad you made.

          1. I’m sorry. I know you Tom. I know you didn’t mean a thing. I believe there have been several recent cases of youths losing their lives to swimming accidents . I wonder how many of us took advantage of areas we were not supposed to in order to cool off

            1. Mrs. OS has a theory on all of these drownings.

              It is not necessarily that these individuals could not swim, but rather a function of the it being so Hot so early in the season while the water is still very cold.

              In that kind of cold water, the body losing heat fairly rapidly and then all sorts of things can happen.

              So sad.

              1. That makes sense. The reports for officer Familia were that he dove in and was sucked under. That caught my attention because I couldn’t figure out what would do that. But Mrs OS’s theory would answer that

  16. Wunder station nearest to me has 77 and 49 DP. I’m far too comfortable on the deck to get up to look at my dashboard.

  17. I wonder if this pattern can remain for the rest of the month. Pure fantasy I suppose. 🙂

  18. St John’s Newfoundland is experiencing moderate snow with a temperature of 32F/0C.

    1. That´s a couple times anyway, this time of year, in the last handful of years.

      Moderate snow, the occasional iceberg passing by.

      And two or three months from now, they´ll probably get hit by a very strong extra-tropical cyclone.

      Fun weather place to live.

  19. I am hoping this does not change as were going to get a break from the heat and humidity for a while. Tweet from Eric Fisher
    Lots of 70s on the 7-Day….real comfortable stretch. Really not seeing a chance for significant heat to return until the final week of June or so. Next 10-14 should be seasonable.

    1. Macs aunt by Marriage from the Strattons of Lauriston arrived from Scotland at St Johns. I’ve been to the Miramichi river in blackville NB and it is truly beautiful country I’d also like to visit St Johns

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