DAYS 1-5 (AUGUST 20-24)

Discussion…

High pressure will control the weather the next 3 days, starting out with a coolish morning today. You will notice a warm up and a slight increase in humidity as we progress toward and into the weekend. The risk of a pop up shower or thunderstorm is very remote on Saturday, but there will be a better chance of showers and thunderstorms developing during Sunday afternoon as a cold front approaches. This front will still be in the vicinity Monday when more cloud cover and additional shower activity is possible.

Details…

TODAY: Mostly sunny. Highs 76-83. Dew point lower 50s. Wind variable to N up to 10 MPH.

TONIGHT: Mostly clear. Patchy fog interior lower elevations. Lows 56-63. Dew point middle 50s. Wind SW under 10 MPH.

FRIDAY: Mostly sunny. Highs 78-85, coolest South Coast. Dew point upper 50s to 60. Wind SW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Lows 60-67. Dew point lower 60s. Wind SW up to 10 MPH.

SATURDAY: Sunny to partly cloudy. Remote chance of isolated afternoon showers and thunderstorms. Highs 78-83 South Coast, 84-89 elsewhere. Dew point middle 60s. Wind SW 5-15 MPH.

SATURDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point lower to middle 60s. Wind SW under 10 MPH.

SUNDAY: Partly cloudy. Chance of a shower or thunderstorm, mainly late in the day. Highs 83-90. Dew point middle to upper 60s. Wind SW 5-15 MPH.

SUNDAY NIGHT: Variably cloudy. Isolated to scattered showers and thunderstorms. Lows 63-70. Dew point middle to upper 60s. Wind variable 5-15 MPH.

MONDAY: Variably cloudy. Isolated to scattered showers and possible thunderstorms. Highs 75-82. Dew point middle 60s. Wind variable 5-15 MPH.

DAYS 6-10 (AUGUST 25-29)

A weak trough passes with a chance of a shower or thunderstorm August 26 and a stronger cold front moves through around August 28 with a shower and thunderstorm threat. The vast majority of this 5-day period will be rain-free with overall temperatures near to above normal, though a nice shot of cooler air may be here for the end of the period. As far out as I can tell I don’t see any East Coast threats from the tropics at this time.

DAYS 11-15 (AUGUST 30 – SEPTEMBER 3)

High pressure is expected to be in control with generally fair weather and near to above normal temperatures for much of if not all of this period.

C-19 Chat Post – August 20 2020

DAYS 1-5 (AUGUST 19-23)

Discussion…

High pressure will be the main player in the weather for a good part of this 5-day period, but not the only player. A weak trough will pass through the region from west to east today and be enough to trigger some cloud development and a possible pop up shower in a few locations. This actually brings in a slight reinforcement of cooler/drier air through early Thursday, which will result in that hint of the coming autumn in the air to start the day Thursday. But you’ll very much know it’s still summer as we move through the next several days to a return of a little more heat and humidity, especially by the weekend. By Sunday, we’ll put the chance of a shower or thunderstorm back into the forecast as a cold front approaches the area. Another reminder to be cautious with any outdoor open flame as we’ll be seeing fire danger higher than average due to long term dry conditions.

Details…

TODAY: Partly cloudy. Isolated afternoon showers. Highs 77-84. Dew point middle 50s. Wind W 5-15 MPH.

TONIGHT: Mostly clear. Lows 56-63. Dew point lower 50s. Wind variable under 10 MPH.

THURSDAY: Mostly sunny. Highs 76-83. Dew point lower 50s. Wind variable to N up to 10 MPH.

THURSDAY NIGHT: Mostly clear. Patchy fog interior lower elevations. Lows 56-63. Dew point middle 50s. Wind SW under 10 MPH.

FRIDAY: Mostly sunny. Highs 77-84, coolest coast. Dew point upper 50s to 60. Wind SW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Lows 60-67. Dew point lower 60s. Wind SW up to 10 MPH.

SATURDAY: Sunny to partly cloudy. Highs 78-83 South Coast, 84-89 elsewhere. Dew point middle 60s. Wind SW 5-15 MPH.

SATURDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point lower to middle 60s. Wind SW under 10 MPH.

SUNDAY: Partly cloudy. Chance of a shower or thunderstorm, mainly late in the day. Highs 83-90. Dew point middle to upper 60s. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 24-28)

The cold front that moves into the area at the end of the coming weekend will hang around next Monday (August 24) with a risk of showers and still humid air. High pressure builds in with generally fair weather and near to above normal temperatures for the middle of the period before an approaching front brings a shot of high humidity and a chance of showers and thunderstorms around the end of the period. With some medium range guidance predicting the potential for a tropical system off the East Coast by late in the period we should also pay attention to that. It may end up as no threat at all, but you don’t discount anything this far in advance in hurricane season.

DAYS 11-15 (AUGUST 29 – SEPTEMBER 2)

High pressure is expected to be in control with generally fair weather and near to above normal temperatures for much of if not all of this period.

C-19 Chat Post – August 19 2020

DAYS 1-5 (AUGUST 18-22)

Discussion…

A trough passing through the region overnight and very early this morning triggered some showers and even a few rumble of thunder in the region, but it now moving offshore and opening the door for a much nicer day as a drier westerly air flow arrives. High pressure builds in with great summer weather for the remainder of this period, starting out seasonably warm with fairly low humidity for August. You’ll then notice a bit of an increase in heat and humidity as we get to the start of the weekend. One thing to keep in mind, despite some recent showers, the overall pattern remains very dry, and the drought will continue to worsen. Fire danger will be high as well. If cooking outside, be sure not to use grills near brush that can easily ignite, and never leave a grill or especially an open flame unattended.

Details…

TODAY: Variably cloudy early morning with a lingering shower Cape Cod and an additional shower possible southwestern to south central NH. Generally sunny mid morning on. Highs 77-84. Dew point falling from lower 60s to middle 50s. Wind W 5-15 MPH.

TONIGHT: Mostly clear. Lows 58-65. Dew point lower 50s. Wind W 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 77-84. Dew point lower 50s. Wind W 5-15 MPH.

WEDNESDAY NIGHT: Mostly clear. Lows 56-63. Dew point lower 50s. Wind variable under 10 MPH.

THURSDAY: Mostly sunny. Highs 76-83. Dew point lower 50s. Wind variable up to 10 MPH.

THURSDAY NIGHT: Mostly clear. Patchy fog interior lower elevations. Lows 56-63. Dew point middle 50s. Wind SW under 10 MPH.

FRIDAY: Mostly sunny. Highs 77-84, coolest coast. Dew point upper 50s to 60. Wind SW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Lows 60-67. Dew point lower 60s. Wind SW up to 10 MPH.

SATURDAY: Sunny to partly cloudy. Highs 78-83 South Coast, 84-89 elsewhere. Dew point middle 60s. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 23-27)

Humid with a shower & thunderstorm chance with an approaching cold front August 23. Frontal boundary may hang nearby with additional showers possible August 24. High pressure builds in with fair weather and near to above normal temperatures August 25-27.

DAYS 11-15 (AUGUST 28 – SEPTEMBER 1)

High pressure is expected to be in control with generally fair weather and near to above normal temperatures for much of if not all of this period.

C-19 Chat Post – August 18 2020

DAYS 1-5 (AUGUST 17-21)

Discussion…

The maritime air feel of the weekend lingers as we start the new week today, but we’ll start to lose that as low pressure pulls away from the region. A brief wind shift to a more southerly direction by evening precedes a trough / cold front which may kick off a few showers and even a thunderstorm as it crosses the region late tonight and early Tuesday. Behind this comes a drier westerly air flow and fair weather. The high pressure area that builds in by the middle of the week will stay around into late week too with some great late summer weather resulting.

Details…

TODAY: Mostly cloudy start with a few patches of fog, a bit of drizzle, and a brief light shower possible, then becoming partly sunny. Highs 70-75 coast, 75-80 interior. Dew point lower to middle 60s. Wind NE-N 5-15 MPH early, becoming variable up to 10 MPH through early afternoon then S up to 10 MPH later in the day.

TONIGHT: Variably cloudy. Chance of a shower and slight chance of a thunderstorm overnight. Lows 63-70. Dew point lower to middle 60s. Wind SW 5-15 MPH.

TUESDAY: Partly sunny. Chance of showers and possibly a thunderstorm favoring the Cape Cod area until mid morning. 77-84. Dew point falling lower 60s to middle 50s. Wind W 5-15 MPH.

TUESDAY NIGHT: Mostly clear. Lows 60-67. Dew point 50s. Wind W 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 80-87. Dew point 50s. Wind W 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 61-68. Dew point upper 50s. Wind SW up to 10 MPH.

THURSDAY: Partly cloudy. Highs 76-81 South Coast, 82-87 elsewhere. Dew point upper 50s. Wind S to variable 5-15 MPH.

THURSDAY NIGHT: Mostly clear. Patchy fog interior lower elevations. Lows 56-63. Dew point upper 50s. Wind variable under 10 MPH.

FRIDAY: Mostly sunny. Highs 77-84, coolest coast. Dew point upper 50s to 60. Wind variable up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 22-26)

Higher humidity and showers/thunderstorms August 22-23 weekend, and a frontal boundary hanging nearby may keep some showers around into August 24 before high pressure builds in and returns fair weather to the region for the remainder of the period.

DAYS 11-15 (AUGUST 27-31)

High pressure is expected to be in control with generally fair weather and near to above normal temperatures for much of if not all of this period.

C-19 Chat Post – August 17 2020

DAYS 1-5 (AUGUST 16-20)

Discussion…

The second of two low pressure areas will pass south of New England during the next 24 hours (through early Monday) before moving out to sea. This, combined with high pressure to the north, will keep a cool northeasterly air flow going across the region, and this second low pressure wave will be close enough to cause some rainfall mainly over the South Coast and southeastern MA, though patchy light rain is possible elsewhere, from this evening through early Monday before that chance drops off as the wave moves away. We will also continue to see rough surf especially along east-facing and north-facing shores into Monday, so use caution of being near or in the water there. With the evolution of these low pressure waves as they are, things are moving right along and a cold front I once expected to arrive late Tuesday will now be offshore by midday Tuesday. “Cold front” is only used in a sense, because it will actually be warmer behind that front, as the air mass will be of continental origin, and not modified by our ocean nearby but by sun-heated land that the air mass has been passing over. So once that front goes by, we’ll have a return to more of the feel of summer through midweek, but without the humidity spiking too much. By Thursday, a very weak frontal boundary will be in the region, likely dissipating, and will probably result in more decorative clouds in the late summer sky than anything shower threat, which will be minimal as it looks right now.

Details…

TODAY: Mostly cloudy. A very light shower or brief drizzle possible anywhere through early afternoon. An episode of showers more likely South Coast and especially Cape Cod late-day. Highs 68-75. Dew point temperatures upper 50s to lower 60s. Wind NE to E 5-15 MPH inland, 15-25 MPH coast.

TONIGHT: Cloudy. A period of rain likely Cape Cod & Islands, lesser chance of rain elsewhere. Lows 58-65. Dew point upper 50s to lower 60s. Wind E to NE 5-15 MPH inland, 15-25 MPH coast.

MONDAY: Mostly cloudy. Risk of rain far eastern MA favoring Cape Cod early. Isolated light showers possible anywhere late morning through afternoon. Highs 70-77. Dew point lower to middle 60s. Wind NE to N 10-20 MPH coast and 5-15 MPH inland morning, variable up to 10 MPH midday, S up to 10 MPH mid afternoon on.

MONDAY NIGHT: Variably cloudy. Chance of a shower and slight chance of a thunderstorm overnight. Lows 63-70. Dew point lower to middle 60s. Wind SW 5-15 MPH.

TUESDAY: Partly sunny. Chance of showers and thunderstorms morning. 77-84. Dew point falling lower 60s to middle 50s. Wind W 5-15 MPH.

TUESDAY NIGHT: Mostly clear. Lows 60-67. Dew point 50s. Wind W 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 80-87. Dew point 50s. Wind W 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 61-68. Dew point upper 50s. Wind SW up to 10 MPH.

THURSDAY: Partly cloudy. Very light chance of a shower. Highs 76-81 South Coast, 82-87 elsewhere. Wind S to variable 5-15 MPH.

DAYS 6-10 (AUGUST 21-25)

High pressure brings dry weather and low to moderate humidity August 21. Higher humidity and showers/thunderstorms possible for the August 22-23 weekend, and a frontal boundary hanging nearby may keep some showers around into August 24 before high pressure builds in and returns fair weather to the region at the end of the period.

DAYS 11-15 (AUGUST 26-30)

High pressure is expected to be in control with generally fair weather and near to above normal temperatures for much of if not all of this period.

C-19 Chat Post – August 16 2020

AUGUST 15-19 (DAYS 1-5)

Discussion…

Our weather here in southeastern New England this weekend and Monday will be influenced by high pressure to the north and a couple waves of low pressure moving to the east and passing south of the region, the first of which has become our latest tropical system of the season, Tropical Storm Kyle, which is destined to pass harmlessly southeast of the region. The second wave of low pressure will not develop into a tropical system and while passing by a little closer than the first one, it will still be too far south to bring any appreciable rainfall to the region, with mainly dry weather being dominant. The most significant impacts of this synoptic set-up will be cooler weather, lower humidity (though not too dry), a noticeable breeze from the northeast to east, and some fairly rough surf along the shoreline, especially east-facing coastal areas, where boating, surfing, and swimming should be done with extreme caution. It won’t be the greatest beach weekend by typical standards anyway. Looking a bit ahead, this pattern lets go by Tuesday when a weak cold front crosses the region during the morning and midday with a threat of a shower or thunderstorm and a shot of muggy air. This front moves offshore during the day and drier air arrives. By Wednesday, that front is dissipating offshore while high pressure builds in with nice mid August summer weather.

Details…

TODAY: Mostly cloudy. Slight chance of light showers favoring southeastern MA. Highs 70-75 coast, 75-80 inland. Dew point temperatures upper 50s to lower 60s. Wind NE to E 5-15 MPH inland and 10-20 MPH coast with higher gusts.

TONIGHT: Mostly cloudy. Lows 58-65. Dew point temperatures upper 50s to lower 60s. Wind E 5-15 MPH inland and 15-25 MPH coast.

SUNDAY: Variably cloudy. Slight chance of showers. Highs 70-77. Dew point temperatures lower 60s. Wind E 5-15 MPH inland and 15-25 MPH coast.

SUNDAY NIGHT: Cloudy. Chance of showers, favoring areas south of I-90. Lows 63-70. Humid. Dew point temperatures lower 60s. E 5-15 MPH with higher gusts.

MONDAY: Mostly cloudy. Chance of showers. Highs 70-77. Humid. Dew point temperatures middle 60s. Wind E 10-20 MPH, stronger gusts possible especially South Coast, diminishing late in the day.

MONDAY NIGHT: Partly cloudy. Patchy fog. Lows 63-70. Humid – dew point temperatures lower to middle 60s. Wind variable up to 10 MPH.

TUESDAY: Partly sunny. Chance of showers and thunderstorms early. Highs 77-84. Drying air. Dew point temperatures falling into 50s. Wind W 5-15 MPH.

TUESDAY NIGHT: Mostly clear. Lows 60-67. Wind W 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 80-87. Wind W 5-15 MPH.

DAYS 6-10 (AUGUST 20-24)

High pressure brings mostly fair weather with lower to moderate humidity and seasonably warm air August 20-21. Higher humidity and a risk of showers and thunderstorms possible for the August 22-23 weekend, and a frontal boundary hanging nearby may keep some showers around at the end of the period – but still not seeing any sign of widespread beneficial rain.

DAYS 11-15 (AUGUST 25-29)

High pressure builds in from eastern Canada with mainly dry weather. Temperatures start seasonable with humidity in check then a trend to warmer/hotter and higher humidity begins.

C-19 Chat Post – August 15 2020

7:25AM

DAYS 1-5 (AUGUST 14-18)

A mostly stationary frontal boundary still sits near the South Coast. This was the focus of some shower activity yesterday but today it should be less active and also slide a bit more to the south. This leaves the entirety of southeastern New England in a cooler and somewhat less humid easterly air flow that will be hanging around through the weekend and into Monday as well. High pressure centered to the north will be a player in this air flow, as will two waves of low pressure passing south of the region. Some of the guidance has been over-forecasting the development of wave number 1 and also bringing it too far north, but probably because the wave may end up at least being a hybrid tropical system. Whether or not it gets itself a designation by the NHC, it will probably be a tighter system passing a little further south, with not really any direct impact on our weather through Saturday, other than to enhance the easterly flow enough to bring some lower stratus clouds at times. At worst, these could produce a sprinkle or light shower, but expect largely dry weather. Low pressure wave number 2 is likely to evolve a bit slower than some guidance has shown, and even with a bit closer of a track to our area this should allow Sunday to be a dry day for the most part as well, with the closest pass of the low bringing a risk of some shower activity Sunday night into Monday. This will be out of here by later Monday and on Tuesday we can expect a weak cold front to cross the region with higher humidity and a risk of a few showers and thunderstorms, although this would not be a system that would produce much in the way of beneficial rainfall. So expect our drought to continue to worsen as the days go by. It’s also important to note here that the NWS has issued a high surf advisory for a good portion of east-facing coastal areas through Saturday (this may be extended beyond that as well), for 3 to 8 foot breaking waves. Anybody planning on using a small boat near the shore, surfing, or at a beach vulnerable to large waves should be aware and practice caution.

TODAY: Partly sunny. Highs 77-84, coolest coastal areas. Dew point temperatures 60-65. Wind NE 5-15 MPH.

TONIGHT: Variably cloudy. Lows 60-67. Dew point temperatures 60-65. Wind NE-E up to 5-15 MPH.

SATURDAY: Variably cloudy. Slight chance of light showers favoring southeastern MA. Highs 75-82, coolest coast. Dew point temperatures 60-65. Wind E 5-15 MPH inland and 15-25 MPH coast.

SATURDAY NIGHT: Mostly cloudy. Lows 58-65. Dew point temperatures 58-63. Wind E 5-15 MPH inland and 15-25 MPH coast.

SUNDAY: Variably cloudy. Slight chance of showers favoring the South Coast later in the day. Highs 70-77. Dew point temperatures 60-65. Wind E 5-15 MPH inland and 15-25 MPH coast.

SUNDAY NIGHT: Cloudy. Chance of showers. Humid. Lows 63-70. Wind variable up to 10 MPH.

MONDAY: Mostly cloudy. Chance of showers. Humid. Highs 70-77. Wind E 10-20 MPH, stronger gusts possible especially South Coast, diminishing late in the day.

MONDAY NIGHT: Partly cloudy. Patchy fog. Humid. Lows 63-70. Wind variable up to 10 MPH.

TUESDAY: Partly sunny. Chance of showers and thunderstorms. Humid. Highs 77-84. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 19-23)

High pressure brings mostly fair weather with lower to moderate humidity and seasonably warm air August 19-21. Higher humidity and a risk of showers and thunderstorms possible for the August 22-23 weekend, based on current timing of features in the overall pattern.

DAYS 11-15 (AUGUST 24-28)

A boundary nearby may start the period showery, then high pressure builds in, again from eastern Canada as has been a seen quite often, with overall dry weather and near to above normal temperatures.

C-19 Chat Post – August 14 2020

7:43AM

DAYS 1-5 (AUGUST 13-17)

A frontal boundary will sit near to just south of the New England South Coast the next few days. Several days ago you may recall I mentioned a “mini” block developing. I was referring to a set-up where we have a boundary with low pressure developing on it to the south, and high pressure to the north, which eventually tries to slide more to the east of the region. This will be the pattern that drives the weather these 5 days. The frontal boundary will be close enough to help trigger a few showers near the South Coast today, and possibly Friday although the chance drops off then. The low pressure area will never get that strong but may mill around to the south of the region, or consist of two separate waves (not quite sure yet) and will probably contribute to at least more cloudiness over the weekend. The wild card is whether or not any wet weather makes its way into the region Sunday into Monday. This has been a question in my meteorological mind for a while and I still have not figured it out, so we will keep an eye on it, and applying the rule of drought, I’ll go with the clouds, but not to too excited about the rainfall chance, even though that “chance” will be included in the forecast that follows this rambling explanation. 😉 What I do know with more certainly is that today and tomorrow we trend to less humid, keep it there into the weekend, then see the humidity come back up somewhat, but without the heat, during Sunday and Monday.

TODAY: Variably cloudy. Chance of a few showers near the South Coast. Less humid especially north of I-90 but still somewhat humid toward the South Coast. Highs 78-83 coast, 84-89 inland. Wind variable to E up to 10 MPH.

TONIGHT: Variably cloudy. Lows 58-65. Wind E under 10 MPH.

FRIDAY: Partly sunny. Slight chance of a shower South Coast. Highs 76-83, coolest coastal areas. Wind E 5-15 MPH.

FRIDAY NIGHT: Variably cloudy. Lows 58-65. Wind E up to 10 MPH.

SATURDAY: Variably cloudy. Highs 76-83, coolest coast. Wind E 5-15 MPH.

SATURDAY NIGHT: Mostly cloudy. Lows 58-65. Wind SE up to 10 MPH.

SUNDAY: Mostly cloudy. Chance of showers favoring the South Coast during the afternoon. Highs 77-84, coolest coast. Wind S up to 10 MPH.

SUNDAY NIGHT: Cloudy. Chance of showers. Humid. Lows 63-70. Wind variable up to 10 MPH.

MONDAY: Mostly cloudy. Chance of showers. Humid. Highs 75-82. Wind variable up to 10 MPH.

DAYS 6-10 (AUGUST 18-22)

A quick shot of warmer/muggy air with a chance of thunderstorms ahead of a cold front August 18, followed by high pressure and generally dry weather with temperatures mostly around mid to late August averages thereafter.

DAYS 11-15 (AUGUST 23-27)

The long-standing pattern of a shot of heat followed by a frontal passage and a shower/thunderstorm chance then high pressure building north of the region with an indirect delivery of Canadian air via the Atlantic waters may play itself out yet again.