C-19 Chat Post – July 19 2020

8:21AM

DAYS 1-5 ( JULY 18-22)

3 days of summer heat (will be an official heatwave for any areas that reach or exceed 90 all 3 days). High pressure brings plenty of sun both today and Sunday and the air coming from the southwest will carry increasing humidity by Sunday. Today, we’ll actually see the dew point drop off a little bit as a batch of drier air arrives despite the increasing heat. The most uncomfortable of the 3 days will be Monday when that will be the maximum combination of heat and humidity, dew points closer to or just over 70, and we will also have to add in the risk of afternoon showers and thunderstorms with an approaching trough of low pressure. This will push through Monday night and break the heat and humidity to some degree (no pun intended) Tuesday. A warm front approaches Wednesday with more cloudiness and a limited risk of showers.

TODAY: Any fog dissipates by 9AM, otherwise sunny. Moderately humid then drying slightly. Highs 86-93, but turning cooler in many coastal areas this afternoon. Wind SW up to 10 MPH with coastal sea breezes developing.

TONIGHT: Mostly clear. Moderately humid. Lows 67-74. Wind SW up to 10 MPH.

SUNDAY: Mostly sunny. More humid. Highs 90-97 except cooler Cape Cod / South Coast. Wind WSW 5-15 MPH.

SUNDAY NIGHT: Partly cloudy. Humid. Lows 73-80. Wind SW up to 10 MPH.

MONDAY: Partly sunny. Chance of showers and thunderstorms in the afternoon. Very humid. Highs 87-94. Wind SW 5-15 MPH.

MONDAY NIGHT: Party cloudy. Chance of a shower or thunderstorm early. Patchy fog. Humid. Lows 65-72. Wind W under 10 MPH.

TUESDAY: Partly cloudy. Less humid. Highs 85-92, except cooler some coastal areas especially Cape Cod. Wind W up to 10 MPH.

TUESDAY NIGHT: Mostly clear. Lows 60-67. Wind variable under 10 MPH.

WEDNESDAY: Variably cloudy. Risk of showers. Highs 78-85, coolest coast. Wind SE 5-15 MPH.

DAYS 6-10 (JULY 23-27)

A cold front approaches and passes through the region July 23 with higher humidity and a risk of showers and thunderstorms. High pressure brings drier air and fair weather July 24. Warm front / cold front combo brings a risk of showers / thunderstorms and higher humidity for the July 25-26 weekend. High pressure brings drier air and fair weather back by July 27.

DAYS 11-15 (JULY 28 – AUGUST 1)

West to northwest flow aloft, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but drier than average overall for most of the region.

C-19 Chat Post – July 18 2020

2:25PM

DAYS 1-5 ( JULY 17-21)

Apologies for the late update today. A quick weather summary since the day is half over. no significant changes to the forecast anyway as we have a warm front moving through the region today with lots of clouds. Most of the shower activity occurred this morning but a spot shower cannot be ruled out from here on. Clouds may try to break for some especially west of Boston later in the day. The heat is on for the weekend and Monday. The weekend will feature humid but rain free weather. We will introduce the chance of showers and thunderstorms It’s a front approaches on Monday. Behind that front the humidity level will drop in the heat will come down a little bit for Tuesday.

REMAINDER OF TODAY: Mostly cloudy. Isolated showers. More humid. Highs 70-77. Wind SE 5-15 MPH.

TONIGHT: Decreasing clouds. Humid. Lows 63-70. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Humid. Highs 85-92, but turning cooler in many coastal areas during the afternoon. Wind SW up to 10 MPH except coastal sea breezes developing.

SATURDAY NIGHT: Mostly clear. Humid. Lows 67-74. Wind SW up to 10 MPH.

SUNDAY: Mostly sunny. Humid. Highs 90-97 except cooler Cape Cod / South Coast. Wind WSW 5-15 MPH.

SUNDAY NIGHT: Partly cloudy. Humid. Lows 73-80. Wind SW up to 10 MPH.

MONDAY: Partly sunny. Chance of showers and thunderstorms in the afternoon. Humid. Highs 87-94. Wind SW 5-15 MPH.

MONDAY NIGHT: Party cloudy. Chance of a shower or thunderstorm early. Patchy fog. Humid. Lows 65-72. Wind W under 10 MPH.

TUESDAY: Partly cloudy. Less humid. Highs 85-92, except cooler some coastal areas especially Cape Cod. Wind W up to 10 MPH.

DAYS 6-10 (JULY 22-26)

Daily opportunities for showers and thunderstorms, but rain-free much of the time July 22-23, humid but not as hot. Drier air will likely push in from Canada late next week with a push from a little stronger west northwest upper air flow.

DAYS 11-15 (JULY 27-31)

West to northwest flow aloft, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but drier than average overall for most of the region.

C-19 Chat Post – July 17 2020

7:25AM

DAYS 1-5 ( JULY 16-20)

High pressure provides us with the “pick of the week” weather for today – plenty of sunshine, low humidity, and comfortably “mild” July air. A warm front crosses there region Friday with clouds, a shower threat, and increasing humidity, and then the door is open to summer heat and humidity over the weekend and Monday, although we’ll be free of any shower and thunderstorm threat for the weekend, but not so on Monday as a cold front approaches the region.

TODAY: Mostly sunny. Highs 70-75 coast, 75-80 inland. Wind E 5-15 MPH.

TONIGHT: Increasing clouds. Lows 60-67. Wind SE under 10 MPH.

FRIDAY: Mostly cloudy. Scattered showers. More humid. Highs 75-82. Wind SE 5-15 MPH.

FRIDAY NIGHT: Decreasing clouds. Humid. Lows 65-72. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Humid. Highs 85-92. Wind SW 5-15 MPH.

SATURDAY NIGHT: Mostly clear. Humid. Lows 67-74. Wind SW up to 10 MPH.

SUNDAY: Mostly sunny. Humid. Highs 90-97 except cooler Cape Cod / South Coast. Wind WSW 5-15 MPH.

SUNDAY NIGHT: Partly cloudy. Humid. Lows 73-80. Wind SW up to 10 MPH.

MONDAY: Partly sunny. Chance of showers and thunderstorms in the afternoon. Humid. Highs 87-94. Wind SW 5-15 MPH.

DAYS 6-10 (JULY 21-25)

Daily opportunities for showers and thunderstorms, but rain-free much of the time July 21-23, along with fairly high humidity but a little less heat in response to a couple of fronts between Atlantic and Canadian high pressure. Drier air will likely win out and push in from the Canadian high late next week with a push from a little stronger west northwest upper air flow.

DAYS 11-15 (JULY 26-30)

West to northwest flow aloft, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but drier than average overall for most of the region.

C-19 Chat Post – July 16 2020

7:29AM

DAYS 1-5 ( JULY 15-19)

High pressure centered over eastern Canada will drift slowly southward bringing drier air in for today (which starts on the cloudy and still somewhat humid side) and Thursday. A warm front approaching and moving through the region Friday brings cloudiness, higher humidity, and a risk of showers, then opens the door to some summer heat for the weekend.

TODAY: Clouds break for sun. Drying out. Highs 69-74 coast, 75-80 inland. Wind NE 5-15 MPH.

TONIGHT: Partly cloudy. Patchy fog lower elevations overnight. Lows 55-62. Wind E under 10 MPH.

THURSDAY: Partly sunny. Highs 76-83, coolest coast. Wind SE up to 10 MPH.

THURSDAY NIGHT: Increasing clouds. Showers possible overnight. Lows 60-67. Wind S up to 10 MPH.

FRIDAY: Variably cloudy. Showers possible. Slight risk of a thunderstorm. More humid. Highs 78-85. Wind S-SW 5-15 MPH.

FRIDAY NIGHT: Partly cloudy. Humid. Lows 65-72. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Humid. Highs 85-92. Wind SW 5-15 MPH.

SATURDAY NIGHT: Mostly clear. Humid. Lows 67-74. Wind SW up to 10 MPH.

SUNDAY: Mostly sunny. Humid. Highs 88-95 except cooler Cape Cod / South Coast. Wind WSW 5-15 MPH.

DAYS 6-10 (JULY 20-24)

Very warm to hot, humid, and add in the risk of showers and thunderstorms as a front moves into the area and weakens early next week (July 20-21). Another front pushes in and repeats the process midweek (July 22-23) before drier air arrives late week (July 24) based on current timing.

DAYS 11-15 (JULY 25-29)

West to northwest flow aloft, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but drier than average overall for most of the region.

C-19 Chat Post – July 15 2020

7:54AM

DAYS 1-5 ( JULY 14-18)

An upper level low pressure area and pool of very cold air aloft will make the atmosphere unstable today with showers and thunderstorms. Initially these storms are limited to parts of southern NH but will develop elsewhere due to the sun’s heating. Some of these storms may produce gusty winds and hail. Activity settles down and departs later tonight, and high pressure centered over eastern Canada, sinking slowly southward, provides fair and comfortable mid July weather Wednesday and Thursday. A warm front approaching and moving through the region Friday brings cloudiness, higher humidity, and a risk of showers, then opens the door to some summer heat by Saturday.

TODAY: Variably cloudy. Isolated thunderstorms in southern NH early to mid morning. Scattered showers and thunderstorms anywhere midday on. Thunderstorms may produce hail, gusty winds, and frequent lightning. Highs 76-83. Wind N-NE 5-15 MPH.

TONIGHT: Mostly cloudy. Scattered showers and thunderstorms diminishing. Patchy fog forming. Lows 56-63 Wind NE up to 10 MPH.

WEDNESDAY: Partly sunny. Highs 72-79, coolest coast. Wind NE 5-15 MPH.

WEDNESDAY NIGHT: Mostly clear. Patchy fog lower elevations overnight. Lows 55-62. Wind E under 10 MPH.

THURSDAY: Sunny to partly cloudy. Highs 76-83, coolest coast. Wind SE up to 10 MPH.

THURSDAY NIGHT: Increasing clouds. Showers possible overnight. More humid. Lows 60-67. Wind S up to 10 MPH.

FRIDAY: Variably cloudy. Showers possible. Slight risk of a thunderstorm. Humid. Highs 78-85. Wind S-SW 5-15 MPH.

FRIDAY NIGHT: Partly cloudy. Humid. Lows 65-72. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Humid. Highs 85-92. Wind SW 5-15 MPH.

DAYS 6-10 (JULY 19-23)

Very warm to hot, humid, but rain-free weather for July 19. Early next week July 20-21 humidity stays high in a southwesterly flow but approaching and passing cold front brings the risk of showers and thunderstorms. Middle of next week July 22-23 brings fair and somewhat drier weather.

DAYS 11-15 (JULY 24-28)

West to northwest flow aloft heading into late July, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but not a wet pattern overall.

C-19 Chat Post – July 14 2020

7:47AM

DAYS 1-5 ( JULY 13-17)

Active weather early this week. If you look at a general weather map you can say “an area of low pressure” or “a trough” is moving across the region, but putting a little microscope on it, we have a mid to high level disturbance coming through this morning (which triggers a few showers in the area), a slow-moving trough / cold front moving into the area this afternoon which triggers clusters of showers and thunderstorms that may linger over certain areas, resulting in flash flooding, and we have an upper level low pressure trailing all this interacting with a newly formed although weak surface low pressure area to produce another round of showers and storms on Tuesday. So much in 2 days during one of the quieter seasons of the year? It happens. But if you want a quiet day, it’s coming – Wednesday – as high pressure settles in, and like many before it, centered to the north so that the air flow is northerly to easterly, but that will bring comfortable air in, and tranquil weather, which will last through Thursday as the high shifts overhead then off to the southeast. By Friday, a warm front will be passing through with cloudiness and a shower threat, opening the door to more humidity again.

TODAY: Mostly cloudy with possible passing showers during the morning. Partly sunny midday and afternoon leading to scattered to clustered showers and thunderstorms mid through late afternoon, some of which may result in flash flooding and gusty, locally damaging, winds. Humid. Highs 81-88. Wind SW 5-15 MPH but strong and gusty near some storms.

TONIGHT: Variably cloudy with a diminishing risk of showers and thunderstorms evening. Partly cloudy overnight. Patchy fog. Humid. Lows 61-68. Wind variable up to 10 MPH.

TUESDAY: Partly sunny. Risk of a passing shower or brief thunderstorm mainly during the afternoon. Highs 78-85. Wind W-NW 5-15 MPH.

TUESDAY NIGHT: Clearing. Patchy fog forming in lower elevations. Lows 56-63. Wind N up to 10 MPH.

WEDNESDAY: Mostly sunny. Highs 72-79, coolest coast. Wind N shifting to E 5-15 MPH.

WEDNESDAY NIGHT: Mostly clear. Patchy fog lower elevations overnight. Lows 55-62. Wind variable under 10 MPH.

THURSDAY: Sunny to partly cloudy. Highs 76-83, coolest coast. Wind SE to S up to 10 MPH.

THURSDAY NIGHT: Increasing clouds. Showers possible overnight. More humid. Lows 60-67. Wind S up to 10 MPH.

FRIDAY: Variably cloudy. Showers possible. Risk of a thunderstorm. Humid. Highs 78-85. Wind S-SW 5-15 MPH.

DAYS 6-10 (JULY 18-22)

Typical summery weather for July 18-19 weekend, very warm to hot, no extreme heat, and a daily risk of a shower or thunderstorm in a few areas. Overall pattern is weak systems and weak to moderate westerly flow aloft so similar weather into next week.

DAYS 11-15 (JULY 23-27)

West to northwest flow aloft heading into late July, a seasonably warm to occasionally hot pattern but no lasting or extreme heat expected. Occasional opportunities for showers and thunderstorms but not a wet pattern overall.

C-19 Chat Post – July 13 2020

8:30AM

DAYS 1-5 ( JULY 12-16)

Today will be a breezy and warm summer day, a little less humid than yesterday, dew point coming down from over 70 to the lower 60s, but very warm to hot with some areas reaching or just exceeding 90 for high temps. Expecting sun eventually mixed with some clouds but today I’m going to remove any risk of pop up showers and storms from the forecast. We do have more “weather” on the way though, and a low pressure trough crossing the region Monday will bring a good chance for showers and thunderstorms, especially to areas away from the South Coast and especially during the afternoon hours. The trough responsible for this will develop a low pressure area offshore Tuesday and some cold air aloft will linger, and this combination will set off a few more showers and possible thunderstorms Tuesday, mainly during the afternoon and early evening. High pressure, centered to the north of the region, will bring fair and cooler weather for Wednesday before it shifts offshore and a warm-up begins Thursday.

TODAY: Sun and passing clouds. Less humid. Highs 85-92. Wind SW 10-20 MPH and gusty.

TONIGHT: Partly cloudy. Moderately humid. Lows 65-72. Wind SW 5-15 MPH.

MONDAY: Variably cloudy. Afternoon showers and thunderstorms likely, especially away from the South Coast. More humid. Highs 81-88. Wind SW 5-15 MPH.

MONDAY NIGHT: Partly cloudy. Chance of a shower or thunderstorm early. Slightly less humid. Lows 60-67. Wind W 5-15 MPH.

TUESDAY: Partly sunny. Risk of a passing shower or brief thunderstorm mainly during the afternoon. Highs 78-85. Wind W-NW 5-15 MPH.

TUESDAY NIGHT: Clearing. Patchy fog forming in lower elevations. Lows 56-63. Wind N up to 10 MPH.

WEDNESDAY: Mostly sunny. Highs 76-83. Wind N shifting to E 5-15 MPH.

WEDNESDAY NIGHT: Mostly clear. Patchy fog lower elevations overnight. Lows 55-62. Wind variable under 10 MPH.

THURSDAY: Sunny to partly cloudy. Highs 79-86, coolest coast. Wind SE to S up to 10 MPH.

DAYS 6-10 (JULY 17-21)

Limited risk for any shower / thunderstorms in weak to moderate westerly flow aloft and weak weather systems at the surface. Temperatures near to above normal.

DAYS 11-15 (JULY 22-26)

A slightly stronger west to northwest flow aloft means a warm pattern with limited shower / storm chances.

C-19 Chat Post – July 12 2020