Thursday April 22 2021 Forecast (7:25AM)

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DAYS 1-5 (APRIL 22-26)

Happy Earth Day 2021! Take care of our planet! It is our only home…. Well, this year’s edition of Earth Day here in southeastern New England may as well be on a day in late February or early March for how it’s going to feel. The last couple days’ taste of the warmer side of spring, ending with yesterday’s showers and thunderstorms, is now a memory as we’ve had a strong cold front pass by, opening the door to a strong shot of polar air from Canada on gusty northwesterly winds. The mechanism pulling this air into our region at the surface is the pressure gradient between the now stronger low pressure wave that went by us yesterday as it travels through eastern Canada and a high pressure area sliding southeastward from the Ohio Valley toward the Middle Atlantic States. Other than a narrow ocean-effect band of stratocumulus clouds just north of the tip of Cape Cod, and some strips of similar clouds from the mountains making it into southwestern NH, central MA, and one closer to the South Coast, much of the region is starting out with sunshine despite the blustery and cold conditions, but there is plenty of even colder air aloft and not only will we have additional cumulus & stratocumulus clouds coming in from the northwest today, but additional clouds will fill in any clear spaces as the sun heats the ground below. This is a process we see on a fairly regular basis here in the Northeast, and it most frequently happens in spring and sometimes autumn. There will be enough instability that a few rain and even snow showers may fall from some of these clouds as we go through the day and into early this evening, before they finally start to break up and dissipate. Friday’s weather will still feature a gusty breeze, though less strong that today, and we’ll have more sunshine as a downsloping westerly wind will dry the air and warmer air above leads to less cloud development. As high pressure moves offshore during Saturday we’ll see the wind flow go from west to southwest and we’ll warm nicely, except for typical cooler South Coast regions. But with things on the move with this week’s zonal pattern, the next low pressure area will be making a run at the region by Sunday, which looks like a wet, windy, and chilly day, but any rain is needed, as we remain in a significant deficit. This system will move beyond the region by Monday, a day that will be breezy and drier but on the cool side as well…

TODAY: Sun/cloud mix morning. Mostly cloudy afternoon with a passing rain or snow shower possible, favoring southern NH and northern MA. Highs 43-50. Wind NW 15-25 MPH, gusts 30-40 MPH.

TONIGHT: Variably cloudy. Slight chance of a rain or snow shower early. Lows 28-35. Wind W 10-20 MPH and gusty, diminishing overnight.

FRIDAY: Partly sunny. Highs 55-62. Wind W 10-20 MPH, gusts up to 30 MPH.

FRIDAY NIGHT: Mostly clear. Lows 40-47. Wind SW 5-15 MPH.

SATURDAY: Sun and high clouds. Highs 65-72, cooler South Coast. Wind SW 5-15 MPH.

SATURDAY NIGHT: Increasing clouds. Lows 47-54. Wind S to SE 5-15 MPH.

SUNDAY: Cloudy. Rain likely. Temperatures steady 47-54 or may fall slightly. Wind E 10-20 MPH and gusty.

SUNDAY NIGHT: Mostly cloudy. Lingering drizzle and possible rain showers early. Lows 40-47. Wind N 10-20 MPH and gusty.

MONDAY: Partly sunny. Highs 52-59. Wind NW 10-20 MPH with higher gusts.

DAYS 6-10 (APRIL 27 – MAY 1)

Zonal (west to east) flow pattern starts to transition to blocking again… Similar to a recent blocking pattern, we’ll be on the dry side of it with high pressure dominating our weather with mild to warm days which will feature coastal sea breezes at times.

DAYS 11-15 (MAY 2-6)

A general blocking pattern should remain in place, but slow movement of weather systems will occur and we may end up with low pressure south of our region and an increased chance for cloud cover and eventually rainfall. Low confidence outlook at this time.

36 thoughts on “Thursday April 22 2021 Forecast (7:25AM)”

  1. Good morning and thank you TK.
    Thunder made it here yesterday, delivering another
    .25 inch for .36 inch on the day.

  2. Thanks Tk . Need to dress for this if working outside today or you will be uncomfortable. I’m dressed for it & I am still cold .

  3. Thank you, TK.

    My oldest has a full day of lessons. The horses are not fans of the wind and the very scary sounds it makes against the indoor arena. Should be fun.

  10. Nothing making it to the city just yet and when/if it does it may be sprinkles as it is 39 here. We shall see.

  11. Thanks TK.

    Snow showers today, approaching 90 a week from today? Will be the case if the 0z CMC verifies at least. Either way, much warmer weather coming next week.

    1. Good luck . My 17 year old son got his second Pfizer shot at noontime yesterday & woke up in the middle of the night sick as a dog . My wife both shots same kind & nothing at all .

    3. My 2nd Pfizer shot was given to me on the afternoon of February 9. It was on the evening of February 10 that I had the maximum side effects (about 6 hours of body aches & minor chills). So my reaction was delayed a little bit and quite minor.

      1. What I have seen with myself and others is that delay you all speak of . 12 to 16 hours until the side effects hit.

  17. The budding drought continues to have the “slow burn” look I talked about a few weeks ago. It hasn’t been a bone dry pattern, and we had a pretty big rain event not too long ago. But it’s persistently leaning dry versus wet, as has really been the case for a couple of years now. And next week obviously looks very dry, and much warmer. We’ll see how we do on rain this weekend. Still a decent look for a good soaking over SNE on Sunday, but nothing crazy. We need these rain events to continue to deliver, as they generally have been doing, to keep us “afloat” so to speak.

  18. A little weather history yesterday in CT with the earliest tornado on record. Tweet from meteorologist Ryan Hanrahan

    The National Weather Service confirms an EF-0 tornado in Kent, CT from Bulls Bridge to South Kent. On the ground for 1 mile with winds up to 85 mph. This is the earliest tornado on record in Connecticut and the second April tornado on record (since 1950).

    https://twitter.com/ryanhanrahan/status/1385332694662397960

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