Thursday September 16 2021 Forecast (7:21AM)

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DAYS 1-5 (SEPTEMBER 16-20)

A slow moving cold front is now across RI and southeastern MA and crawling to the southeast, and will come to a stop and lose its identity over the next 24 hours. Before that happens, some energy moving across our region, combined with the contrasts created by the frontal boundary, continue to produce a fairly decent area of showers and embedded thunderstorms in the vicinity of the boundary, and lighter scattered showers to the northwest. This activity will gradually diminish during the day. Clouds will hang around though for the remainder of today, tonight, and through Friday. We will also be watching low pressure to the south of New England which will be moving north to northeast, staying offshore, but close enough to possibly toss some bands of shower activity into the region at times Friday and Friday night. The low should pull far enough to the northeast so that drier air is drawn in during Saturday with improving weather, but cannot rule out a few pop up showers from leftover instability. High pressure builds in with fair, warming weather Sunday and Monday.

TODAY: Cloudy with scattered to numerous showers including embedded thunderstorms favoring RI and southeastern MA during this morning. Mostly cloudy with a chance of a few showers this afternoon. Highs 68-75. Wind NE 5-15 MPH.

TONIGHT: Mostly cloudy. Areas of fog. Chance of showers. Lows 60-67. Wind NE 5-15 MPH.

FRIDAY: Cloudy. Chance of showers. Highs 68-75. Wind NE 5-15 MPH.

FRIDAY NIGHT: Cloudy. Chance of showers evening. Areas of fog. Lows 58-65. Wind NE 5-15 MPH.

SATURDAY: Mostly cloudy to partly sunny. Isolated midday and afternoon showers possible. Highs 66-73. Wind NE to N 5-15 MPH.

SATURDAY NIGHT: Partly cloudy. Lows 55-62. Wind NW under 10 MPH.

SUNDAY: Mostly sunny. Highs 70-77. Wind NW 5-15 MPH.

SUNDAY NIGHT: Clear. Areas of ground fog in lower elevations. Lows 53-60. Wind calm.

MONDAY: Sunny. Highs 73-80. Wind variable up to 10 MPH.

DAYS 6-10 (SEPTEMBER 21-25)

High pressure is expected to bring dry weather and above normal temperatures to the region September 21-22. Current indications are that a trough and cold front will pass through from west to east sometime September 23 with a shower threat, followed by another area of high pressure building in with more fair weather for the end of the period.

DAYS 11-15 (SEPTEMBER 26-30)

General west-to-east flow. Expected timing of disturbances with passing shower threats September 26 and 29. A brief shot of cooler air follows the first one and a sharper shot of chilly air may follow the second one to end the month.

27 thoughts on “Thursday September 16 2021 Forecast (7:21AM)”

  3. Thanks TK !

    3rd time in 3 weeks, at least in Marshfield, it has been pouring around the time teachers are arriving at our school.

    1. Same thing in the Boro.
      If things aren’t crazy enough in schools already, let’s have a Severe Thunderstorm Warning at 7:10! 🙂

  6. Good morning and thank you TK.

    0.46 inch of rain and almost all of that was this morning.

    Thunderstorm at 6AM. It woke me up.
    If I have to get waken up, that is a good one. 🙂

  7. Thank you, TK. Long storm around 4:30. It was far enough west of here that it was comfortably loud and didn’t shake everyone awake.

  10. Thank you, TK.

    Some of the bird have migrated south. But, that’s really the only sign of autumn thus far. Of course, as TK will remind us, we’re not technically in autumn yet. It’s still summer.

    2. I posted yesterday that some leaves have begun to change here …surprisingly early for us. I was seeing the hummingbirds up until a day or so ago. They may have migrated. But I’ll leave the feeder up a bit

      1. No leaf change yet here in Boston. Not even a hint from what I can tell. Usually there will be some rogue trees turning color in August. Didn’t occur this time.

    1. Thanks. However, I am a little disappointed by the parenthetical remark:
      Monday: Unlimited sunshine (daylight hours only)

      1. That’s ok. We had a local guy (who shall remain anonymous) call for a mostly sunny night not that long ago. 😉

    1. I don’t believe I-95 is closed at the moment but there are still some flash flood warnings in the vicinity.

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