C-19 Chat Post – August 24 2020

DAYS 1-5 (AUGUST 23-27)

Discussion…

As we roll through the next-to-last weekend of August we’ve seen a return to higher humidity and somewhat more active weather. Showers and thunderstorms developed on Saturday, and while I was expecting mainly isolated afternoon activity, the atmosphere decided it to be more appropriate to produce more scattered to even general activity in some areas, beginning in late morning northwest of Boston with the trend gradually moving south and east through the late afternoon hours. Today’s activity should, in theory, develop a bit later with a focus a little further north, with the majority of the activity expected to occur from mid afternoon to mid evening and north of I-90. But convection can be rather unpredictable, and just outflow boundaries from mere showers can be enough to kick off activity in areas that you expected to remain quiet. So with that in mind, while the focus is north, the chance exists anywhere. The process will repeat again on Monday with a weak frontal boundary still in the area. On Tuesday, a stronger cold front will cross the region from northwest to southeast, providing yet another chance of showers and storms. Will try to pin down the exact timing as we get closer to this event. Tuesday night and Wednesday, a Canadian air mass will arrive with dry and somewhat cooler air, ushered in by a gusty breeze. A warm front will approach the region Thursday with some clouds moving in, but it looks like it will remain dry.

Details…

TODAY: Areas of valley, swamp, and bog fog early morning, otherwise sunshine morning yielding to developing clouds during the afternoon, which will then lead to scattered showers and thunderstorms, activity most likely north of I-90 but possible anywhere. Highs 83-90. Dew point middle 60s. Wind SW to variable 5-15 MPH, can be briefly strong near any storms.

TONIGHT: Variably cloudy. Scattered to isolated showers/thunderstorms. Areas of fog forming. Lows 63-70. Dew point lower to middle 60s. Wind variable up to 10 MPH, but locally stronger winds are possible near any storms.

MONDAY: Variably cloudy. Scattered showers and possible thunderstorms. Highs 78-85. Wind variable 5-15 MPH.

MONDAY NIGHT: Partly cloudy. Patchy fog. Lows 63-70. Dew point lowr to middle 60s. Wind variable 5-15 MPH.

TUESDAY: Partly sunny. One or two passing showers and thunderstorms likely from midday to late afternoon from northwest to southeast. Highs 82-89. Dew point lower to middle 60s. Wind SW 5-15 MPH, higher gusts, may be variable and quite strong near any storms.

TUESDAY NIGHT: Clearing. Lows 55-62. Dew point falling to upper 40s. Wind NW 5-15 MPH, higher gusts.

WEDNESDAY: Sun and passing clouds. Highs 78-85. Dew point upper 40s to lower 50s. Wind NW 10-20 MPH.

WEDNESDAY NIGHT: Clear except patchy ground fog in low elevations. Lows 47-54. Dew point lower to middle 40s. Wind NW diminishing to under 10 MPH.

THURSDAY: Sun/cloud mix. Highs 75-82. Dew point upper 40s to lower 50s. Wind variable 5-15 MPH.

DAYS 6-10 (AUGUST 28 – SEPTEMBER 1)

Higher humidity and a shower/thunderstorm threat exists for August 28-29. Drier, breezy, cooler air follows for August 30 then high pressure builds over and eventually south of the region with fair weather and a warming trend later in the period.

DAYS 11-15 (SEPTEMBER 2-6)

Dry weather and above normal temperatures to start the period, a cold front with a shower threat somewhere mid period, and a cooler/drier end to the period.

C-19 Chat Post – August 23 2020

DAYS 1-5 (AUGUST 22-26)

Discussion…

A series of disturbances interacting with some summer heat and humidity will bring the risk of showers and thunderstorms at times the next few days, until a final cold front passes by early Wednesday and brings a refreshing new air mass in from Canada.

Details…

TODAY: Sunny to partly cloudy. Isolated to scattered showers and thunderstorms. Highs 79-84 South Coast, 84-89 elsewhere. Dew point middle 60s. Wind SW 5-15 MPH.

TONIGHT: 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 early. Lows 63-70. Dew point middle to upper 60s. Wind variable 5-15 MPH.

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

MONDAY NIGHT: Partly cloudy. Patchy fog. Lows 63-70. Dew point middle 60s. Wind variable 5-15 MPH.

TUESDAY: Partly sunny. Chance of afternoon showers and thunderstorms. Highs 83-90. Dew point middle 60s. Wind W 5-15 MPH.

TUESDAY NIGHT: Variably cloudy. Chance of showers and thunderstorms. Lows 63-70. Dew point middle 60s. Wind W 5-15 MPH.

WEDNESDAY: Sun and passing clouds. Highs 78-85. Dew point 50s. Wind NW 10-20 MPH.

DAYS 6-10 (AUGUST 27-31)

High pressure brings fair weather August 27. A disturbance brings a shower and thunderstorm threat August 28. High pressure builds in with fair weather and below to near normal temperatures to round out August.

DAYS 11-15 (SEPTEMBER 1-5)

A front or disturbance should be passing through around September 1 with a shower risk, otherwise high pressure will be in control the majority of the time with mostly dry weather. Temperatures near to slightly above normal overall.

C-19 Chat Post – August 22 2020

DAYS 1-5 (AUGUST 21-25)

Discussion…

High pressure retains control of the weather today, but as its center will have slipped off to the south the door is open for a warmer air again, and you’ll notice that today with a southwesterly wind. This will continue into the weekend but with an increase in humidity. A cold front will slowly approach the region by late in the weekend, but both days will carry a chance of afternoon showers and thunderstorms, though they will be on the isolated to scattered side, with many areas likely to remain rain-free. That front will be in the area Monday and there may be some additional showers around, and another front will approach Tuesday with yet another chance of showers and thunderstorms. Sound like a wetter pattern? Not really. The area’s drought has been upgraded to moderate to severe and this will remain in place for a while.

Details…

TODAY: Mostly sunny. Highs 80-85 South Coast, 85-90 elsewhere. Dew point upper 50s to 60. Wind SW 5-15 MPH.

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

SATURDAY: Sunny to partly cloudy. Chance of isolated afternoon showers and thunderstorms. Highs 79-84 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.

MONDAY NIGHT: Variably cloudy. Patchy fog. Lows 63-70. Dew point middle 60s. Wind variable 5-15 MPH.

TUESDAY: Partly sunny. Chance of afternoon showers and thunderstorms. Highs 83-90. Dew point middle 60s. Wind W 5-15 MPH.

DAYS 6-10 (AUGUST 26-30)

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. Temperatures near to above normal through mid period cooling to near to below normal late in the period.

DAYS 11-15 (AUGUST 31 – SEPTEMBER 4)

A front or disturbance should be passing through around September 1 with a shower risk, otherwise high pressure will be in control the majority of the time with mostly dry weather. Temperatures warm up to start the period, then cool down mid period before warming up again.

C-19 Chat Post – August 21 2020

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