7:38AM

DAYS 1-5 (JUNE 1-5)

Welcome to June and Meteorological Summer! While the summer solstice is still just under 3 weeks away the “climate summer” gets underway today. And it won’t really feel much like summer as we have a cool high pressure area centered to the west, and an upper level low pressure trough about to cross the region. This disturbance will help clouds pop up today, some of which will produce showers. It will be breezy and on the cool side as well. The upper low exits tonight and a warm front approaches Tuesday, bringing more cloudiness and eventually a risk of a little light rainfall. This will introduce warmer and slightly more humid air for Wednesday, a day that will be mainly rain-free but still feature the risk of a shower or thunderstorm, especially south of I-90, as a weak cold front moves in late. This front will bring the humidity and temperature down a tick or two for Thursday but the front will also hang in the region and drift back to the north by Friday, a day with lots of clouds but more warmth and humidity, and a risk of a few showers and thunderstorms.

MONDAY: Sun/cloud mix. Risk of passing showers this afternoon. Highs 60-67. Wind NW 5-15 MPH, higher gusts.

MONDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.

TUESDAY: Increasing clouds. Scattered light rain late. Highs 65-72. Wind variable 5-15 MPH.

TUESDAY NIGHT: Mostly cloudy. Risk of rain. Lows 53-60. Wind S up to 10 MPH.

WEDNESDAY: Mostly cloudy with a risk of showers early morning, then partly sunny. Risk of a late-day shower or thunderstorm. More humid. Highs 73-80. Wind SW 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Risk of a shower early. Lows 53-60. Wind NW 5-15 MPH.

THURSDAY: Partly cloudy. Highs 69-76. Wind NW 5-15 MPH.

THURSDAY NIGHT: Variably cloudy. Lows 60-67. Wind WSW up to 10 MPH.

FRIDAY: Variably cloudy. Chance of a few showers and thunderstorms. Humid. Highs 75-82. Wind SW 5-15 MPH.

DAYS 6-10 (JUNE 6-10)

A frontal boundary will be in the region on the June 6-7 weekend, likely with this area on the warm/humid side Saturday with a few showers and possible thunderstorms, and on the cooler side Sunday with a few showers. High pressure brings fair weather June 8-9 with a cooler start then warming. Warm front may approach with clouds and showers by June 10.

DAYS 11-15 (JUNE 11-15)

Leaning toward slightly cooler than average and drier than average during this 5-day period.

C-19 Chat Post – June 1 2020

8:10AM

DAYS 1-5 (MAY 31-JUNE 4)

We’ve reached the end of May, and the month is ending on a very dry, breezy and fairly bright note, though today’s sunshine will have to share the sky with passing fair weather clouds, at least for a portion of the day. Still, a very nice way to end the month of May after an early season bout of warmth combined with humidity. The forecast heading into the early days of June remains pretty much as it was on yesterday’s update, including a disturbance crossing the region with a shower threat and even cooler air Monday, a warm front approaching later Tuesday and passing through at night with some wet weather, a warmer Wednesday with a shower or thunderstorm threat as a cold front moves through later in the day, and a return to cooler air once again for Thursday. Additional note: Last night, sky watchers in eastern MA, southeastern NH, RI, and eastern CT were treated to an overhead pass of the International Space Station, and 45 seconds later a pass of the Crew Dragon space capsule, which was launched Saturday afternoon from Florida. The 2 will dock this morning and together will make a visible pass across the sky of southeastern New England just after 9PM this evening, from northwest to southeast (9:04-9:08PM). The sky will be clear for this!

TODAY: Sun and passing clouds. Highs 68-75. Wind NW 10-20 MPH.

TONIGHT: Clear. Lows 40-47. Wind NW 5-15 MPH.

MONDAY: Variably cloudy. Risk of showers. Highs 61-68. Wind N 10-20 MPH.

MONDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.

TUESDAY: Sunshine then increasing clouds late. Highs 63-70. Wind variable 5-15 MPH.

TUESDAY NIGHT: Mostly cloudy. Risk of rain. Lows 53-60. Wind S up to 10 MPH.

WEDNESDAY: Mostly cloudy with a risk of showers early morning, then partly sunny. Risk of a late-day shower or thunderstorm. More humid. Highs 72-77. Wind SW 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Risk of a shower early. Lows 53-60. Wind NW 5-15 MPH.

THURSDAY: Partly cloudy. Highs 67-74. Wind NW 5-15 MPH.

DAYS 6-10 (JUNE 5-9)

Warm front approaches and brings clouds back with a rain threat at some point June 5. Warm sector June 6, warmer and more humid, risk of a shower or thunderstorm. Frontal boundary hanging in the area makes for a tricky temperature forecast and allows for at least lots of cloudiness and perhaps some scattered rainfall in the June 7-8 time frame before it dries out at the end of the period.

DAYS 11-15 (JUNE 10-14)

Leaning toward slightly cooler than average and drier than average during this 5-day period.

C-19 Chat Post – May 31 2020

9:37AM

DAYS 1-5 (MAY 30-JUNE 3)

It’s transition day! Today, a cold front crossing the region will bring an end to the early-season warm/muggy episode and introduce a much drier air mass from Canada, but it’s a slow process taking most of the day today to occur. With the front not completely across the region yet, we still run the risk of a few showers and even a brief thunderstorm popping up through about early afternoon. Most areas will likely escape the activity, but if a line should get itself together the coverage, while brief, could be more widespread for a portion of southeastern New England. But odds are against this, so if you have outdoor plans, go about them and just keep an eye on the sky. Tonight, a secondary trough will push through the region from west to east with some clouds at times, but most shower activity that fires up during the day in NY State should not make it much further than the Berkshires or Connecticut River Valley before dissipating. What you will definitely feel tonight is cooler and much drier air. And this dry air will be in place for Sunday, along with a gusty breeze, sunshine and passing clouds, as high pressure moves across the Great Lakes and toward the Ohio Valley. The position of this high and the upper level air flow will allow a disturbance coming out of southern Canada to cross New England on Monday, introducing more cloudiness, a possible passing shower or two, and even cooler air. But this fast-flow pattern means quick changes and by Tuesday we’ll already be seeing the next disturbance approach by later in the day, after a mainly dry day, clouds return and a risk of some insignificant wet weather at night, putting us into a warmer and slightly more humid sector of air for Wednesday with mainly dry weather – just a minimal shower threat.

TODAY: Variably cloudy. Slight risk of passing showers and possibly a brief thunderstorm favoring areas west of I-95 morning and I-95 eastward midday to early afternoon. Decreasing humidity. Highs 76-83, cooler South Coast especially Cape Cod. Wind SW shifting to NW 5-15 MPH, higher gusts.

TONIGHT: Partly cloudy. Lows 53-60. Wind NW 5-15 MPH.

SUNDAY: Partly cloudy. Highs 68-75. Wind NW 10-20 MPH.

SUNDAY NIGHT: Clear. Lows 50-57. Wind NW 5-15 MPH.

MONDAY: Variably cloudy. Risk of showers. Highs 61-68. Wind N 10-20 MPH.

MONDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.

TUESDAY: Sunshine then increasing clouds late. Highs 63-70. Wind variable 5-15 MPH.

TUESDAY NIGHT: Mostly cloudy. Risk of rain. Lows 53-60. Wind S up to 10 MPH.

WEDNESDAY: Partly sunny. Slight risk of a shower. More humid. Highs 72-77. Wind SW 5-15 MPH.

DAYS 6-10 (JUNE 4-8)

A passing shower otherwise mainly dry and cooler June 4 as a cold front moves through. Warm front approaches and brings clouds back with a rain threat at some point June 5. Warm sector June 6, warmer and more humid, risk of a shower or thunderstorm. Frontal boundary hanging in the area makes for a tricky temperature forecast and allows for at least lots of cloudiness and perhaps some scattered rainfall in the June 7-8 time frame.

DAYS 11-15 (JUNE 9-13)

Leaning toward slightly cooler than average and drier than average during this 5-day period.

C-19 Chat Post – May 30 2020

7:43AM

DAYS 1-5 (MAY 29-JUNE 2)

A southerly air flow will continue to bring warm and humid weather to the region today and tonight. Some fog and drizzle will be around the South Coast early in the day. A plume of tropical moisture will bring a few downpours to Nantucket first thing this morning otherwise just look for scattered light showers and sprinkles today. Some sun will try to develop, especially north of I-90, where temperatures will climb highest today due to cloud breaks and distance from the South Coast, where a southerly wind is coming off cooler water. A cold front will make its way across the region west to east during the first 12 to 15 hours of Saturday, triggering a few showers and possible thunderstorms. We’ll have to monitor for where a possible line or cluster of showers/storms may form during the late morning and midday hours of Saturday as we gain some daytime heating. Most likely chance for this is near the I-95 belt eastward. Either way, this interruption will be temporary and by later Saturday and definitely Saturday night, we’ll be clearing out and drying out, setting up for a fantastic weather day on Sunday as high pressure moves in. You may or may not recall, the last time June 1 and 2 fell on a Monday / Tuesday, we had anomalous cold, with Boston failing to reach 50 (high temp of 49) both days. This came along with rain/drizzle and a chilly northeast wind. Is that about to happen again? No. But the same 2 days falling on the same 2 days of the week this time around will once again be significantly cooler than average, just not to the extreme of last time, and this time with drier air, courtesy an air mass that originated near the North Pole. It may come along with some rain showers Monday as a disturbance crosses the region, but Tuesday will be a dry day, though we may see some cloudiness arriving as it starts to warm up aloft.

TODAY: Low clouds / fog / drizzle near South Coast and a few showers / downpours near Nantucket early morning, otherwise mostly cloudy to partly sunny with isolated light showers. Humid. Highs 70-77 south of I-90, 78-85 I-90 northward. Wind SW-S 10-20 MPH, higher gusts.

TONIGHT: Mostly cloudy. Patchy fog. Chance of showers and possibly a thunderstorm, mainly after midnight. Humid. Lows 60-67. Wind SW 5-15 MPH.

SATURDAY: Mostly cloudy to partly sunny. Scattered showers, possibly a thunderstorm, favoring morning and midday hours west of I-95, midday to mid afternoon I-95 eastward. Gradually lowering humidity. Highs 76-83, cooler South Coast especially Cape Cod. Wind SW shifting to NW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Clearing. Lows 55-62. Wind W 5-15 MPH.

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

SUNDAY NIGHT: Clear. Lows 50-57. Wind NW 5-15 MPH.

MONDAY: Variably cloudy. Risk of showers. Highs 61-68. Wind N 10-20 MPH.

MONDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.

TUESDAY: Sunshine then increasing clouds late. Highs 63-70. Wind NW 5-15 MPH.

DAYS 6-10 (JUNE 3-7)

The overall pattern during this 5-day period will feature a west to northwest air flow across the Northeast with a couple disturbances bringing episodes of wet weather, but staying rain-free most of the time. Temperatures below normal.

DAYS 11-15 (JUNE 8-12)

Not looking for a significant change in the pattern of the previous 5-day period.

C-19 Chat Post – May 29 2020

7:22AM

DAYS 1-5 (MAY 28-JUNE 1)

A southerly air flow will bring warm and increasingly humid weather to our region through Friday night, and with little to trigger them, showers will be limited through the daylight hours of Friday, after which an approaching cold front from the west will increase the risk of showers, and possibly some thunderstorms, though that particular threat does not look too significant. It will take a good part of Saturday for the front to completely make it through the region, so that will be an unsettled day, not likely raining the entire time but with a chance of shower activity at any time. Clearing will occur Saturday night and high pressure will move in for a stellar end to May on Sunday. But waiting in the wings is a very cool air mass from Canada, which will make the first day of June on Monday feel more like a day earlier in May. This will probably come with a passing disturbance that will bring at least clouds and possibly a few showers.

TODAY: Partly sunny. More humid. Highs 80-87 except 73-80 South Coast, coolest Cape Cod. Wind S 5-15 MPH.

TONIGHT: Mostly cloudy. Isolated to scattered showers. Humid. Lows 60-67. Wind SW 5-15 MPH.

FRIDAY: Mostly cloudy. Isolated to scattered showers. Humid. Highs 73-80 except 66-73 South Coast. Wind S 10-20 MPH.

FRIDAY NIGHT: Mostly cloudy. Patchy fog. Chance of showers and possibly a thunderstorm. Lows 60-67. Wind SW 5-15 MPH.

SATURDAY: Mostly cloudy. Scattered showers, possibly a thunderstorm, favoring morning and midday hours. Gradually lowering humidity. Highs 70-77, cooler South Coast especially Cape Cod. Wind SW shifting to NW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Clearing. Lows 55-62. Wind W 5-15 MPH.

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

SUNDAY NIGHT: Clear. Lows 50-57. Wind NW 5-15 MPH.

MONDAY: Variably cloudy. Risk of showers. Highs 65-72. Wind N 10-20 MPH.

DAYS 6-10 (JUNE 2-6)

The overall pattern during this 5-day period will feature a west to northwest air flow across the Northeast with a couple disturbances bringing episodes of wet weather, but staying rain-free most of the time. Temperatures below normal.

DAYS 11-15 (JUNE 7-11)

Not looking for a significant change in the pattern of the previous 5-day period.

C-19 Chat Post – May 28 2020

7:21AM

DAYS 1-5 (MAY 27-31)

The evolution of weather changes due to the position of high pressure continues, and today will be the warmest day of the stretch for many areas, along with lots of sun. But wait, you woke up early this morning and it was cloudy over Cape Ann and in most areas south of the I-90 (Mass Pike)! Yes, that lingering marine layer of air responsible from the low clouds at times since Sunday night. That will be gone in a matter of a couple hours as the sun burns it off. Yesterday, the predominant wind direction, while not strong, was from the southeast, keeping all coastal areas significantly cooler than inland locations. Today, the wind direction will be southwesterly, and that allows east-facing coastal areas to warm up as well, while south-facing and the limited west-facing shores (outer Cape Cod, for example), still are cooled by air passing over water first. You know the drill by now, right? Onward we go and we’ll see increasing moisture starting tonight in the form of cloudiness, which will be dominant both Thursday and Friday, as the air flow becomes a little more straight southerly. A shower threat will exist both Thursday night and Friday, but this early in the season a southerly wind limits thunderstorm chances without stronger additional dynamics, and I think any thunderstorm threat on Friday is now minimal unless you are well inland and near hilly terrain, and there are enough breaks of sunshine to help cook up stronger showers that could build enough. Something to watch. But we’ll also have a slower-moving cold front, which will not likely pass through the region until Saturday morning. The lack of lift on Friday from this feature will also limit thunderstorm chances, but the slower movement of the front will keep shower chances going into at least a portion of Saturday before improvement ensues. High pressure will move in for a stellar Sunday to end the month of May.

TODAY: Early low clouds/fog Cape Ann and mostly south of I-90, otherwise mostly sunny. Highs 81-88 except 73-80 South Coast with coolest over Cape Cod. Wind SW 5-15 MPH.

TONIGHT: Increasing clouds. Patchy fog interior lower elevations. Lows 56-63. Wind SW up to 10 MPH.

THURSDAY: Mostly cloudy. More humid. Highs 77-84 except 69-74 South Coast with coolest over Cape Cod. Wind S 5-15 MPH.

THURSDAY NIGHT: Mostly cloudy. Risk of a showers. Humid. Lows 60-67. Wind SW 5-15 MPH.

FRIDAY: Mostly cloudy. Chance of showers and a slight risk of thunderstorms. Humid. Highs 73-80 except 66-73 South Coast. Wind S 10-20 MPH.

FRIDAY NIGHT: Mostly cloudy. Patchy fog. Chance of showers and possibly a thunderstorm. Lows 60-67. Wind SW 5-15 MPH.

SATURDAY: Mostly cloudy. Scattered showers, possibly a thunderstorm, favoring morning and midday hours. Gradually lowering humidity. Highs 68-75. Wind SW shifting to NW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Clearing. Lows 55-62. Wind W 5-15 MPH.

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

DAYS 6-10 (JUNE 1-5)

For several days now I’ve been eyeing a turn back to cooler weather for early June. This will take place as we see a bit of a blocking pattern and an anomalous cool upper level and surface pattern evolve, first with a dry cold front passing by June 1 and then low pressure forming and doing a loop offshore by June 2 helping to pull the initial shot of cool air into the region. We’ll have to watch that offshore low for its position, because sometimes these things can migrate far enough west to bring at least cloudiness and possibly wet weather to this area but for now thinking it stays mostly offshore and just serves as a driver of cool air. The behavior of that feature will impact the timing of what comes after, but based on current expected occurrences thinking that we get briefly fair and milder weather June 3 then some unsettled weather and a renewed push of cool air for June 4-5. Probably some adjustment will be needed for details.

DAYS 11-15 (JUNE 6-10)

Overall pattern continues to look cooler and drier than average but at least one threat of showers/thunderstorms should occur.

C-19 Chat Post – May 27 2020

7:32AM

DAYS 1-5 (MAY 26-30)

“Ain’t it foggy outside, all the planes have been grounded”. Bonus points if you can identify the song and band (hint: it predates the 1980s). Some of you woke up to quite the foggy morning, courtesy a calm wind and the marine layer that’s been hanging about since Sunday evening. This layer of air is not going to be obliterated by a strong wind but only gradually scoured away by a wind that shifts gradually around to the southwest and west, but that takes until tomorrow. So this morning, and again tonight, some low clouds and fog will be the result of the low level marine air in place. But in between, it will clear up enough for a hint of a summertime feel to the air, away from the shoreline at least, during the day today. Coastal locations will be kept cooler due to a light southeasterly breeze, which doesn’t really shift more to the southwest until sometime tonight. Wednesday’s weather will likely be the warmest (hottest in some cases) as we get more of a westerly wind largely off land. There are limited coastal locations where a west wind is still at least a partial ocean breeze, outer Cape Cod and the islands, for example. These areas will continue to be cooler than others, which is completely normal and typical, especially early in the warm season when the ocean water is still fairly chilly. Our dew point will be creeping up gradually, but unless you are super-sensitive to rising dew points, you won’t really feel it that much until Thursday when it will be borderline muggy for early season. I’ve a risk of pop up showers for that day, but I don’t really think they will occur in most locations, perhaps far western areas late in the day and maybe a few more at night. Ahead of an approaching cold front on Friday it will be rather humid as well but we’ll see more cloudiness and a rain shower risk, perhaps a few thunderstorms as well. If this front’s timing was faster we’d be looking at a bigger thunderstorm risk but I think the front itself will not be crossing this area until Saturday morning. This does likely mean that some of Saturday may end up showery as well, a little more pessimistic an outlook than I had previously.

TODAY: Low clouds and areas of fog eventually give way to sunshine. Highs 78-85 except 70-77 South Coast. Wind SE to S 5-15 MPH.

TONIGHT: Areas of low clouds and fog mainly South Coast. Mostly clear elsewhere. Lows 55-62. Wind S under 10 MPH.

WEDNESDAY: Some early low clouds/fog South Coast, otherwise mostly sunny. Highs 81-88 except 73-80 South Coast with coolest over Cape Cod. Wind SW 5-15 MPH.

WEDNESDAY NIGHT: Clear except patchy fog interior lower elevations. Lows 56-63. Wind SW up to 10 MPH.

THURSDAY: Partly cloudy. Slight risk of an isolated shower or thunderstorm inland locations mid to late afternoon. More humid. Highs 80-87 except 72-79 South Coast with coolest over Cape Cod. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Risk of a few showers. Humid. Lows 60-67. Wind SW 5-15 MPH.

FRIDAY: Variably cloudy. Chance of showers and a slight risk of thunderstorms. Humid. Highs 75-82 except 68-75 South Coast. Wind SW 10-20 MPH.

FRIDAY NIGHT: Mostly cloudy. Patchy fog. Chance of showers and possibly a thunderstorm. Lows 60-67. Wind SW 5-15 MPH.

SATURDAY: Mostly cloudy. Scattered showers, possibly a thunderstorm, favoring morning and midday hours. Gradually lowering humidity. Highs 68-75. Wind SW shifting to NW 5-15 MPH, higher gusts.

DAYS 6-10 (MAY 31-JUNE 4)

Dry end to May and start to June with a cooling trend May 31 and June 1. Warm front may bring cloudiness and wet weather by later June 2 and a brief return to milder weather June 3 before the end of the period is much cooler again.

DAYS 11-15 (JUNE 5-9)

Overall pattern looks cooler and drier than average but at least one threat of showers/thunderstorms should occur.

C-19 Chat Post – May 26 2020

7:34AM

Please take a moment today to pause and remember the fallen. Regardless of your stance on any issue, that stance is one of your freedoms they fought to give you. We owe them much, but if they were here today they would not ask for it, so please, just give them something back by never forgetting…

DAYS 1-5 (MAY 25-29)

After being dominated by dry air for a good part of the weekend, the holiday itself finds itself mired in a low overcast from the ocean. High pressure has positioned itself to bring in a light but moisture-laden southeasterly air flow today, which announced its arrival at the end of the day yesterday with an advancing deck of stratus clouds. A few pockets of drizzle may occur this morning near the coast, but as they day goes on the clouds will try to break, but this is much more likely to happen over the interior. So expect today’s conditions to be cloudiest and coolest the nearer to the ocean you are, but possibly turning at least partly sunny and much milder further inland. The clouds refill tonight where they broke but all areas will see the departure of these clouds Tuesday as we are introduced to a warmer and drier southwesterly air flow, and a taste of summer, which will build through midweek as the southwest wind continues, finally delivering some humidity by Thursday. This is when I now have to introduce the risk of a pop up shower or thunderstorm to the forecast for interior locations, although this will be a low risk. By Friday, however, a cold front sweeping into the region from the west will bring a better chance of showers and thunderstorms to the region, coverage and intensity to be dependent on amount of sun and the timing of the front. Updates to come.

TODAY: Low overcast, areas of light fog, and some coastal drizzle possible this morning. Clouds break with some sun developing mainly over inland locations this afternoon. Highs 55-62 coast, 63-70 inland. Wind SE up to 10 MPH.

TONIGHT: Mostly cloudy. Patchy fog. Lows 50-57. Wind SE to S under 10 MPH.

TUESDAY: Clouds give way to sun. Highs 78-85 except 70-77 South Coast. Wind S to SW 5-15 MPH.

TUESDAY NIGHT: Clear except some low clouds and fog possible South Coast. Lows 55-62. Wind SW under 10 MPH.

WEDNESDAY: Mostly sunny. Highs 81-88 except 73-80 South Coast with coolest over Cape Cod. Wind SW 5-15 MPH.

WEDNESDAY NIGHT: Clear except patchy fog interior lower elevations. Lows 56-63. Wind SW up to 10 MPH.

THURSDAY: Partly cloudy. Slight risk of an isolated shower or thunderstorm inland locations mid to late afternoon. More humid. Highs 80-87 except 72-79 South Coast with coolest over Cape Cod. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Humid. Lows 60-67. Wind SW 5-15 MPH.

FRIDAY: Variably cloudy. Chance of showers and thunderstorms. Humid. Highs 78-85, cooler South Coast. Wind SW 10-20 MPH.

DAYS 6-10 (MAY 30-JUNE 3)

Upper level low pressure and a lingering surface trough may trigger a few showers to start the May 30-31 weekend which should end up on a drier, cooler note before finishing. The first few days of June look cooler to start, then milder to finish, with some showers possible during the temperature transition.

DAYS 11-15 (JUNE 4-8)

Overall pattern looks cooler and drier than average but at least one threat of showers/thunderstorms should occur.