Wednesday Forecast

51 Comments

7:27AM

DAYS 1-5 (MAY 23-27)
Nice weather returns today but the only possible interruption is an isolated shower late from a disturbance traveling northwest to southeast across the region with a pocket of very cold air aloft passing over sun-heated ground. That is a recipe for pop up showers. Looking like this chance will be brief and limited to southern NH and northeastern MA, however. High pressure will control the weather Thursday and Friday, with wind direction making all the difference in temperature. Thursday we will see a cool onshore flow, while Friday is a land breeze from the west and an immediate significant warm up. When we get into Memorial Day Weekend it becomes more complicated (of course) as a cold front drops down from the north on Saturday, which itself will be another warm and somewhat more humid day. Other than a possible shower or thunderstorm with this front, its main impact is going to be to return the onshore flow and cooler air for Sunday, the wildcard being how much cloudiness and whether or not there will be any additional precipitation. I am playing this somewhat optimistically, thinking it may push far enough south to allow a pocket of drier air from eastern Canada to enter the mix. More to come as we get closer to and into the weekend. Forecast details…
TODAY: Partly to mostly sunny. Isolated shower possible late-day favoring southern NH and northeastern MA. Highs 68-75 South Coast, 76-83 elsewhere. Wind SW 5-15 MPH shifting to NW.
TONIGHT: Variably cloudy with a possible shower early, then clearing. Patchy fog interior valleys. Lows 48-54. Wind light NW early then calm.
THURSDAY: Mostly sunny but partly sunny for a while Cape Cod and MA South Shore. Highs 58-65 coast, coolest Cape Cod, 66-72 interior. Wind E to SE 5-15 MPH.
THURSDAY NIGHT: Clear. Patchy fog interior low elevations. Lows 49-56. Wind calm.
FRIDAY: Mostly sunny. Highs 75-82 immediate South Coast and Cape Cod, 83-90 elsewhere. Wind W 10-20 MPH.
SATURDAY: Partly sunny. Late day shower or thunderstorm possible. Lows in the 60s. Highs in the 80s except 70s some coastal areas.
SUNDAY: Mostly cloudy to partly sunny. Lows in the 50s. Highs in the 60s, coolest coast.

DAYS 6-10 (MAY 28-JUNE 1)
Cautiously optimistic that Memorial Day Monday May 28 and Tuesday May 29 are both mainly dry as high pressure holds moisture off to the south. A front drops out of Canada with a shower risk Wednesday May 30 and a shot of cooler air briefly for Thursday May 31 before a rapid warm up arrives to start June as high pressure sinks to the south. This is a fairly detailed try at this period so it is with moderate confidence and subject to adjustment.

DAYS 11-15 (JUNE 2-6)
The trend will be for cooler and somewhat unsettled weather to return for this period as upper level low pressure takes over the pattern for a while. This does not look like a major wet spell or major cool spell, nor is it expected to become a long-term pattern either.

51 thoughts on “Wednesday Forecast”

  5. Good morning and thank you TK. Yet another beauty.
    At least when we have a crappy day or 2, we have been rewarded with beautiful
    weather this month. 😀

    1. We sure have had some beauties. I give TK complete credit for arranging for the great weather on the days I have off this week.

  7. Quite a storm complex …..

    In far northern Maine !?!?!?!?

    Almost looks like an MCS you’d expect to find on the periphery of a 500mb high in the Midwest, Ohio Valley or Mid-Atlantic.

  8. Thanks TK.

    The beat rolls on in what’s been a beautiful month. Continuing to feel good about my long-standing prediction for a top 10 warmest May, and in fact given the forecast I think it’s close to a lock. About time to start taking a look at general thoughts for June.

  10. What a peach of a day!
    Just about ready to roll to watch JV baseball.
    It will be nice to watch youth baseball without the winter coat, hat and gloves, nor the umbrella like yesterday. All four items are still in the car!

    Speaking of baseball, I am proud to announce that my former student, Sean Newcomb (Middleborough High Class of 2011), will be the starting pitcher for the Atlanta Braves Friday night AT FENWAY PARK. The Braves are in first place in the NL East and Sean is one of the hottest pitchers in the majors with a 5-1 record.

    It didn’t look like the rotation would work out until his start was pushed back a day last Friday to Saturday.

    The pride of Middleborough will be pitching at Fenway! Local boy makes good!

    3. What a GREAT story. Thank you for sharing. How proud Middleboro and all of Massachusetts can be.

    4. Very cool ! I’ll root for him to do well and have the Sox win the game in late innings.

  12. Braves have been a surprise team this year. Good local story to have a local guy make it to the majors and get a start.

    1. Ain’t not sea breeze here. Still sitting at 86 at my house in JP.
      It is very very warm, hot even.

      DP only 52

  15. Not for nothing, but We over achieved on High temps, even those of our esteemed
    TK:

    Highs 68-75 South Coast, 76-83 elsewhere.

    It was 88 here in JP. I had readings of 88 in the Car at 5PM.

  17. In this pattern, some extremely warm to hot air masses continue to build in a good part of southern and west-central Canada.

    I don’t know if this pattern maintains all summer, but if it does, I think it sets the stage for one of those 100F days in southern New England when the jet stream aligns right and breaks a piece of that heat off and sends it into our region on a WNW flow.

  19. I’m sitting here in the urgent care (working, not as a patient) looking out the window and just shaking my head. As TK alluded to above, a heavy downpour has arrived in Swampscott. I’m in awe.

  22. Rain just hit Harvard 5 min ago – exactly per TK.

    I think we should move to submit “per TK” to the Oxford – English dictionary for consideration….

    1. Arghhh….nary a scary cloud in sky here.

      But you have moved. YAY. Have you sort of settled in? Was there a special peace waiting for you.

  25. These are some fairly solid t-storms moving across the area. Heavy rain and gusty winds (30-40mph) in the stronger cores near Newton now. Good stuff.

  27. Wife and I were out last evening and while returning home on Rt 1 in Dedham
    witnessed one of the most awesome cloud to ground lightning bolts I have ever
    seen. Large, wide bolt with spectacular splinter bolts associated with it.
    Truly amazing sight!!

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