Weekly Outlook: November 23-29, 2020

We’re going to put a few dents in that drought this week, as we’ll have a few storms systems to contend with, but it looks like they’ll be mostly rain, with one of them on Thanksgiving Day. Notice that we said “mostly rain”, as we could have some issues Wednesday night, especially in southern New Hampshire.

We’ll get some relief for the drought this week thanks to at least 2 storm systems. Image provided by the National Drought Mitigation Center.

We start the week off on a wet note as low pressure passes north and west of the region, providing us with a rainy start to the day. Temperatures will be on the mild side this morning, but don’t get used to it. A cold front will cross the region by early afternoon, bringing an end to the rain, but behind it, gusty winds will usher much cooler air back in as skies clear out, leading to a chilly night tonight.

The NAM model shows the warm air ahead of the cold front quickly replaced by much cooler air behind the front this afternoon and evening. Loop provided by WeatherBell.

High pressure builds in for Tuesday with dry and cool conditions. It will still be breezy early on as today’s low pressure system continues to pull away, but winds should die down during the afternoon as the high continues to build in. With clear skies and light winds Tuesday night, we’ll have another chilly night, but some high clouds may start to move in late at night, which would prevent temperatures from tumbling too much. Those high clouds will be in advance of a warm front that will approach the region on Wednesday, possibly accompanied by a few showers. This could set up a tricky situation during the late afternoon and evening across southern New Hampshire and possibly the Merrimack Valley. The warm front may have trouble moving northward during the day, and with chilly air in place and a little bit of precipitation possible, it could fall in the form of a little freezing drizzle, especially in southern New Hampshire, which could result in some slippery conditions Wednesday evening. This is a scenario that happens quite often during the fall and winter, and the models usually handle it poorly, or miss it completely, as they usually overestimate how quickly the warmer air will move in and how far north it can get. We’ve seen the models blow this type of forecast countless times, and the setup is there for it to happen again.

At least one model shows the potential for some icy conditions in southern New Hampshire Wednesday night. Image provided by Pivotal Weather.

That next system brings in more rain for Thanksgiving Day. Right now, it looks like most of the rain will be in the morning, but there are still some timing differences among the models, so showers may linger into the afternoon, and possibly even the evening. High pressure builds in behind that system with drier and cooler weather again on Friday, though a few showers are possible as an upper-level disturbance moves across the region.

Next weekend also has some questions, as the models all have differing solutions. Some models want to bring a weak system through late Saturday with some showers, then have high pressure build back in on Sunday, with another system potentially bringing in some rain next Monday. Others keep high pressure in control for much of the weekend, but have the next system move in at some point late Sunday or Sunday night. They also differ on the track of that system, which has significant implications for temperatures on Sunday. So, our forecast for next weekend is very-low confidence at this point, and may end up significantly different when we issue our weekend outlook (which will be on Wednesday this week instead of the normal Thursday).

The potential exists for a decent amount of rain around here between now and next Monday. Image provided by Weathermodels.com

Monday: Breezy with showers and some steadier rain this morning, possibly a rumble of thunder as well, ending by early afternoon, then skies start to clear out by evening. High 54-61 in the morning, but temperatures may drop pretty quickly during the afternoon.

Monday night: Clear to partly cloudy and breezy. Low 27-34.

Tuesday: Sunshine and a few clouds, breezy in the morning. High 37-44.

Tuesday night: Clear during the evening, high clouds start to move in after midnight. Low 19-26.

Wednesday: Becoming partly to mostly cloudy, chance for a shower or two, possibly some freezing drizzle across southern New Hampshire during the evening or at night. High 36-43 north of the Mass Pike, 44-51 south of the Pike.

Thanksgiving: Cloudy with periods of rain and showers, ending during the afternoon. High 42-49 in southern New Hampshire and the Merrimack Valley, 50-57 elsewhere.

Friday: Partly sunny, slight chance for a shower. High 49-56.

Saturday: A mix of sun and clouds. High 49-56.

Sunday: A sunny start, clouds move in during the afternoon. High 45-52.

Weekly Outlook: November 16-22, 2020

After last night’s squall line, conditions will be significantly quieter for most of this week.

That was a fairly impressive squall line for mid-November that came through last evening. Loop provided by the Collegbe of DuPage

High pressure builds into the region today with breezy and cooler conditions as a cold front continues to push offshore. We’ll have some clouds popping up in the afternoon as cooler air moves in aloft, but we should remain dry. Another cold front will move through late Tuesday. This one may produce a few rain or snow showers, but for most of us it will pass through with little fanfare.

A few rain or snow showers are possible on Tuesday as a cold front moves through. Loop provided by WeatherBell.

Behind that front, much colder air will settle in for Wednesday. Temperatures likely won’t reach 40, with wind chills in the 20s or even upper teens. As winds die down Wednesday night, low temperatures will drop into the teens across much of the region. Thursday will still be chilly, but with high pressure sliding offshore, temperatures will start to moderate a bit. The moderating trend continues into the weekend, as temperatures climb back above normal for the latter half of November.

Wind chills will be in the upper teens and 20s Wednesday afternoon. Image provided by WeatherBell.

Monday: Sunshine and some afternoon clouds, breezy. High 45-52.

Monday night: Clear skies. Low 29-36.

Tuesday: Intervals of clouds and sunshine, chance for a late-day rain or snow shower. High 40-47.

Tuesday night: Clearing, colder. Low 21-28.

Wednesday: Mostly sunny, breezy, and chilly. High 29-36.

Thursday: Partly sunny, breezy. High 39-46.

Friday: A mix of sun and clouds. High 52-59.

Saturday: Partly sunny. High 51-58.

Sunday: Intervals of clouds and sun. High 49-56.

Weekly Outlook: November 9-15, 2020

The warm and dry weather will continue for a couple more days, but changes are coming.

High pressure remains in control into early Wednesday, which means we’ve got a few more more days with near-record temperatures across the region. While the days will be sunny and warm, the nights will be a bit different. Some low clouds and fog are possible in some areas, especially near the coast. For areas that don’t get any fog, clear skies and light winds will allow for radiational cooling.

Record highs will likely be broken across the Northeast again this afternoon. Image provided by Weathermodels.com

Wednesday is when the changes start happening. A strong cold front will approach from the west. Ahead of it, we’ll have some rain later Wednesday into Thursday, but it will remain warm, especially if we can get any sunshine during the morning. Since we’re still in a significant drought, and it hasn’t rained for a week, any rain is good news. While we may get some heavy rain, especially along the South Coast, it looks like the bulk of the heavy rain, some of which will be aided by moisture streaming northward from Eta, should stay south of the region.

Much of the region remains in a significant drought. Image provided by the National Drought Mitigation Center.

As the front moves offshore, the rain should taper off and end Thursday evening, but the front will stall out south of the region. How far south is still a bit of a question, but it may remain close enough for some additional showers on Friday, mainly along the South Coast, as a wave of low pressure rides along the front.

How much rain will we get this week? Some models show a decent amount, some don’t. Which will be right? Images provided by Pivotal Weather.

High pressure builds in later Friday into Saturday with some cooler conditions, but temperatures will still be near to above normal for mid-November, especially on Friday. Sunday is a bit of a question mark as the next system will be starting to approach from the west, but there are significant differences in the timing of this system, depending on which model you decide to look at.

Monday: Some patchy morning fog, then becoming mostly sunny. High 68-75.

Monday night: Clear skies, some low clouds and fog may return in some spots. Low 45-52, though some spots could drop as low as the upper 30s..

Tuesday: Sunshine and a few clouds. High 67-74.

Tuesday night: Clear to partly cloudy, again some low clouds and fog may develop. Low 52-59.

Wednesday: Some early sun, then becoming cloudy and breezy with showers developing late in the day, becoming a steady rain at night. High 67-74.

Thursday: Plenty of clouds with rain likely, ending late in the day. High 59-66.

Friday: A mix of sun and clouds, a few showers are possible along the South Coast, especially early. High 49-56.

Saturday: Mostly sunny and breezy. High 48-55.

Sunday: Mostly cloudy with a chance of showers. High 47-54.

Weekly Outlook: November 2-8, 2020

We’ve got a busy start to the week, then things get rather simple as we head into the middle and end of the upcoming week.

Wind Advisories are in effect for much of the Northeast for Monday. Image provided by Pivotal Weather.

We start off with a blustery and chilly day in the wake of a strong cold front that moved through overnight. Gusty west to northwest winds will usher some chilly air back into the region, similar to what we had on Saturday. There will be some sunshine, but also a decent amount of cloudiness. The clouds will become more widespread at night as winds die down, thanks to an approaching Alberta Clipper. This will move through early Tuesday morning, bringing in some snow or rain showers, maybe even a few squalls. We’re not expecting much, if any, accumulation for most of us, but any squalls could whiten the ground and possibly drop up to half an inch of snow. These will be most likely north of Route 2, especially in the Worcester Hills and the Monadnocks of southwestern New Hampshire. Once that system moves through, skies will clear out, but we’ll have another blustery and chilly afternoon on Tuesday.

Wind gusts of 35-45 mph are possible across the region today. Image provided by WeatherBell.

Conditions become more tranquil on Wednesday as high pressure builds in with sunshine, lighter winds, and moderating temperatures. After that, the high moves offshore and remains there for the rest of the week and into the weekend. The result is generally fair weather with above normal temperatures. Some places could even make a run at 70 by next weekend.

Temperatures could reach 70 in many areas this coming weekend. Image provided by Weathermodels.com

Monday: Intervals of clouds and sunshine, windy, and chilly. High 36-43.

Monday night: Partly to mostly cloudy, rain or snow showers possible late at night. Low 27-34 during the evening, temperatures hold steady or rise a bit overnight.

Tuesday: Any rain or snow showers (or squalls) ending in the morning, then becoming partly sunny. High 40-47.

Tuesday night: Clear skies. Low 23-30.

Wednesday: Plenty of sunshine, milder. High 48-55.

Thursday: Sunshine and a few clouds. High 58-65.

Friday: Partly sunny. High 61-68.

Saturday: A mix of sun and clouds. High 63-70.

Sunday: Mostly sunny. High 65-72.

Hurricanes, Record Cold, and Snow

Here at Storm HQ, we like to separate fact from fiction, or more appropriately, hype from reality. So, we’re going to do that once again in regards to a few topics involving this week’s weather.

Claim: 2020 is now the most active Hurricane Season on record.

Reality: Nope, it isn’t. Not yet at least. With the formation of now-Tropical Storm Zeta a few days ago, many people, including many that should know better, were quick to proclaim that 2020 had now tied 2005 as the busiest Atlantic Hurricane Season ever, since the last named storm in 2005 was also Zeta. However, many people didn’t bother to review that 2005 season. Every year, when the season ends (officially: November 30), the folks down at the National Hurricane Center do a review of everything, to see if there were any storms that they missed. It turns out, that in 2005, there was an unnamed subtropical storm that was added after the fact. So, 2005 ended up with 28 storms of tropical storm strength, and 2020 only has 27 such storms so far.

As for Zeta itself, after making landfall in the Yucatan just south of Cancun last night with maximum sustained winds near 80 mph, it has weakened to a tropical storm. However, as of midday, the center was moving into the Gulf of Mexico, and it is expected to re-intensify into a hurricane later today. While Zeta is currently heading northwestward, a turn more toward the north and eventually northeast is expected over the next 24-36 hours, as a trough of low pressure in the nation’s midsection pulls the storm in. Unfortunately, that means that Zeta will likely make landfall as a hurricane late Wednesday afternoon or evening along the central Gulf Coast. The current forecast has landfall in southeastern Louisiana, but anywhere from western Louisiana to the Florida Panhandle should keep an eye on Zeta’s progress. Strong winds, storm surge, and flooding from heavy rain are all threats with this storm.

Tropical Storm Zeta is moving into the Gulf of Mexico at midday. Loop provided by Tropical Tidbits.

Claim: An historic arctic outbreak is impacting much of the Rockies and Plains.

Reality: This one is definitely true. It’s been brutally cold out there for the past few days, with many records not only being broken, but being annihilated, and in some cases, these records have stood for over 100 years. In Bozeman, Montana, the low temperature Monday morning was 20 below zero. The record low for the day was 11 above zero, set back in 2002. When a record low is broken by 31 degrees, that’s historic. The low of -20 also shattered that city’s record low for the month of October, which was -14. Again, beating a monthly record by 6 degrees doesn’t happen that often. A little farther to the south is the town of Lyman, Wyoming. Lyman was the nation’s cold spot on Monday, when the low temperature bottomed out at 31 degrees below zero. That’s the actual temperature, not the wind chill. This is the earliest in the season that anywhere in the Lower 48 states has ever dropped to 30 below or colder, breaking a record set on October 29, 1917. With all of this cold air in place, and a storm system in the Desert Southwest, snow and ice have been common from the Southern Rockies into the Southern Plains and parts of Texas. This storm system and the cold air will move eastward over the next few days, but the air should moderate significantly.

It’s a wintry morning from the Southern Plains into parts of Texas and New Mexico. Loop provided by Weathertap.

Claim: Snow in Southern New England in October means that Winter won’t feature much snow.

Reality: As with most things involving winter in New England, this one varies. Most people believe this to be true because after the big pre-Halloween snowstorm (“Snowtober”) in 2011, we didn’t get much snow through the rest of the winter. Something similar happened in 1979, when we received measurable snow on October 9-10, then little to no snow through most of the winter. The problem is, those aren’t the only times it’s ever snowed in October around here. Using data for Lowell, snow has been recorded in October during 18 of the past 91 years. During those 18 years, Lowell has averaged 53″ of snow, compared to a “normal” winter, when Lowell averages 55.8″ of snow. Of these 18 winters, all of them except for 1979-80, 2001-02, and 2011-12 featured at least one month between November and April with above normal snow. (1979 and 2011 both had above normal snow in October). Of the remaining 15, 12 of them had at least two months with above normal snow. Of the 18 overall, 13 of them featured above normal snowfall in either December, January, or both months. So, if we see some flakes on Friday, it does not automatically mean that we won’t see much this winter. (Sorry!)

After “Snowtober” we didn’t get much snow during the following winter, but that’s not always the case when it snows in October. Image provided by the National Weather Service office in Norton, MA.

Claim: The first snowstorm of the winter is expected on Friday.

Reality: Unless you live in the hills of Worcester County or in southwestern New Hampshire, this is probably not true. We talked about this in our Weekly Outlook yesterday – the pattern for the end of the week is complex, but things are looking a little clearer today. What’s left of Zeta will pass south of the region on Thursday, bringing some much-needed rain into the area. However, it looks like the bulk of the heavy rain may stay south of New England. Right behind it will be the system that is producing wintry weather across the Southern Plains. That system will pass to our south Thursday night and early Friday. As colder air gets drawn southward behind Zeta’s remnants, and the moisture from the second storm moves in, we’ll likely see the rain mix with or change over to sleet and snow across the hills of Worcester County and into the Monadnocks of southern New Hampshire. In these spots, we could see some minor accumulations, possibly a few inches. For the rest of us from southern New Hampshire into eastern Massachusetts, some sleet or snow will likely mix with the rain before it ends Friday afternoon. While there could be some slushy accumulations on grassy surfaces in southern New Hampshire and the Merrimack Valley, this is far from definite and certainly isn’t a “snowstorm”, despite any hype from the local media. Plus, as we mentioned at the start of this paragraph, it isn’t even that uncommon. It happens on average once every five years in Lowell, and the last time that it happened was – five years ago, in 2015.

Saturday morning will be quite chilly across the region, with a killing freeze for everyone except possibly the Cape and Islands. Image provided by Weathermodels.com.

Once that storm moves away, some of the modified arctic air will move in, resulting in the coldest night of the season thus far. Temperatures will drop into the 20s across much of the area Saturday morning, resulting in a killing freeze in many places that have not yet had one. So, if you still have any plants outside that need to be brought in, now is the time. Despite sunshine, temperatures will only reach the 40s Saturday afternoon. For any kids that are trick-or-treating during the late afternoon or evening, temperatures will only be in the upper 30s to middle 40s, so make sure they are dressed properly for the weather.

Weekly Outlook: October 26-November 1, 2020

It’s coming. Most of you don’t want to hear it, but you’re going to anyways. No, we’re not talking about changing the clocks this coming weekend. We’re talking about something scarier that happens before that, and it’s not Halloween either. It’s the first mention of “snow” in the forecast.

Turn your clocks back an hour Saturday night before bed. We don’t want to know what you’re doing with your hoe for that extra hour. Image provided by Wikipedia.

We’ll start the week with a rather “blah” day. A warm front will try to lift northward into the region, but probably won’t make it (a sign of things to come this winter?). As a result, we’re stuck with plenty of clouds, some drizzle and/or showers, and cool temperatures. A cold front will move through at night, with a few more showers possible. Behind the front we’ll have a couple of drier days for Tuesday and Wednesday, but as little upper-level disturbances move through, we’ll still have some clouds and maybe a shower or two. With high pressure to the north, we’ll still have easterly winds, so it will remain on the cool side, with temperatures generally running a few degrees below where they should be in late October.

Average high temperatures in late October are in the upper 50s. Image provided by Weathermodels.com

The end of the week is where things get interesting, complicated, and uncertain. A frontal boundary will remain stalled out south of the region keeping us cool. Meanwhile, what’s left of Tropical Storm Zeta will move across the Tennessee Valley and will likely ride along that boundary to our south. How far south that boundary lies will help determine how far north the rains from Zeta get. Thursday will be a cool, wet day obviously, but how wet remains to be seen. Some models are showing the potential for some heavy rainfall, especially along the South Coast, which would help somewhat with the drought, but also make the day even more miserable.

Some models show the potential for heavy rainfall this week while others show significantly less rain. Images provided by Pivotal Weather.

But wait, that’s not all. At the same time, an upper-level low will be moving out of the Plains and toward the Mid-Atlantic states, while another upper-level disturbance will be moving across the Great Lakes and towards New England. These two will help determine our weather for Thursday night and Friday. Some models show the potential for these two systems to join up or “phase”. This happens often during the winter to create some of our stronger storms. We’re not convinced that will happen here. Even if it does, it may not happen until the disturbances are past us, in which case, it won’t matter. Even if they don’t phase, we’re going to see colder air get drawn southward in the wake of Zeta’s remnants and as another low passes south of us. At the same time, we’ll have more precipitation moving in. So, while Friday will be another chilly and wet day, it’s becoming more likely that the rain will change over to wet snow in some of the hills from Worcester County into the Monadnocks, where there may even be enough to turn the ground white. For the rest of us, there are still too many variables to really be too definitive. We wouldn’t be shocked if some wet snow mixed in with the rain across parts of southern New Hampshire and eastern Massachusetts. There are some models that are forecasting accumulating snow around here. We can’t even rule that out, if everything lines up perfectly. We’re not expecting a repeat of “Snowtober”, but other than that, anything is possible.

The models still have a variety of solutions for Friday, leading to an uncertain forecast. Images provided by Pivotal Weather.

Once that system pulls away, high pressure builds in with sunshine and chilly temperatures for Halloween. Make sure the kids are bundled up if they are heading out to trick or treat, as it will be chilly Saturday evening. The high slides offshore on Sunday, allowing temperatures to moderate, but the next system will be quickly approaching, with some showers possible by evening.

Temperatures may only be in the lower 40s for Trick-or-Treat time Saturday evening. Image provided by WeatherBell.

Monday: Clouds, drizzle, fog, maybe a few showers. Blah. High 52-59.

Monday night: Cloudy with a shower possible. Low 44-51.

Tuesday: Clouds and some afternoon sunny breaks. High 52-59.

Tuesday night: Mostly cloudy. Low 33-40.

Wednesday: More clouds than sunshine, a few showers are possible. High 50-57.

Thursday: Cloudy with showers developing, possibly become a steady rain late in the day. High 50-57.

Friday: Cloudy and breezy with rain and showers possibly mixing with or changing over to some wet snow before ending in the afternoon. High 38-45.

Saturday: Plenty of sunshine. High 42-49.

Sunday: Some early sun, then clouds return with showers possible late in the day. High 51-58.

Weekly Outlook: October 19-25, 2020

Last week’s rainfall will help, but this week will bring little to no relief from the drought.

Most of New England received beneficial rainfall over the past week. Image provided by WeatherBell.

Much of the upcoming will will be dry across the region thanks to a large offshore high pressure area. That doesn’t mean it will be sunny every day, however. We’ll have a frontal system stalled out to our north and west for most of the week, with the high offshore preventing it from moving through. As waves of low pressure ride along the front, we’ll have some cloud cover, and a few stray showers may move in at times, especially Tuesday or Wednesday, but for the most part, it will remain dry.

Little to no rainfall is expected over the next week across the region. Image provided by Weathermodels.com

Although it won’t be completely sunny, it will be relatively warm for mid-October. We’ll have southwest winds bringing mild air in, with temperatures mainly in the 60s and 70s this week, which is 10 to 20 degrees above normal.

Well above normal temperatures are expected for most of the week. Image provided by WeatherBell.

By later Saturday, that cold front will finally have enough of a push to move through, but again, it won’t produce much in the way of rainfall, just a few showers. What will be noticeable is the cooler air settling in for next Sunday, bringing temperatures back where they should be for late October, maybe even a little below normal.

Monday: Sunshine filtered through some high clouds. High 58-65.

Monday night: Partly to mostly cloudy. Low 44-51.

Tuesday: Partly sunny, slight chance for a shower. High 64-71.

Tuesday night: Partly to mostly cloudy. Low 50-57.

Wednesday: Intervals of clouds and sunshine, chance for a shower or two. High 65-72.

Thursday: A mix of sun and clouds. High 67-74.

Friday: Partly to mostly sunny. High 61-68.

Saturday: Partly sunny, chance for a few showers late in the day and at night. High 63-70.

Sunday: A mix of sun and clouds, cooler. High 52-59.

Weekly Outlook: October 12-18, 2020

Some much-needed rainfall is finally on the way, but we need a lot more.

Drought conditions continue to worsen across New England. Image provided by the National Drought Mitigation Center.

The remains of Hurricane Delta will move into the Mid-Atlantic states today, bringing that region some more heavy rainfall. Some of that rain will get into southern New England today, but it doesn’t look like it will make too much progress northward, thanks to high pressure that will be slow to move out. Right out, it looks like most of the rain today will be south of a line that stretches from Hartford to Providence to Plymouth, or roughly south of Route 44. A few showers may get farther north, but the bulk of the rainfall should stay south during the daytime. With the high to the northeast and low pressure to the southeast, we’ll have brisk northeast winds resulting in a rather cool day across the region, with temperatures likely staying in the 50s for most of us.

Up to an inch of much-needed rain is expected with some spots possibly exceeding an inch. Image provided by WeatherBell.

As low pressure gets a little closer tonight and a cold front starts to approach from the west, rainfall should become more widespread across the region. Some of the rain may be heavy, and it may actually bring down some warmer air from aloft, allowing temperatures to rise a few degrees. The rain continues into Tuesday, which should be a bit milder, ending from west to east during the afternoon as the cold front moves across the region.

High pressure builds in for Wednesday and Thursday, bringing some sunshine and milder weather back in. However, our dry and mild weather will be short-lived. Another cold front approaches on Friday, with another round of showers expected. Some of the models try to develop an area of low pressure along this front which would bring some heavier rain into the region, but we’re skeptical of that scenario at this point. Since the drought began in the Spring, we’ve seen numerous model forecasts for a decent amount of rain several days out that fizzle as it gets closer. Until we see something to change our mind, we’ll continue to lean towards lighter amounts of rain. (Even the rain for today/tomorrow was forecast to be much heavier by the models just a day or two ago) While we’re leaning dry, we are mindful of the fact that more than one model is going for the rain to last through Saturday and into early Sunday. In fact, one of the models actually has the rain change to snow across the mountains of northern New England this weekend as colder air moves in. Obviously, we should have much more clarity on the weekend forecast when we issue our Weekend Outlook Thursday afternoon, but we just wanted to warn you up front that although our forecast right now shows a decent weekend, that is subject to change.

With some sunshine, Friday could be quite warm ahead of a cold front. Image provided by Weathermodels.com

Monday: Cloudy, breezy, and cool with some showers likely, mainly close to the South Coast. High 51-58.

Monday night: Cloudy and breezy with more widespread showers and a period of steady rain, possibly heavy in spots. Low 46-53, but temperatures may drift up a few degrees after midnight, especially south of Boston.

Tuesday: Periods of rain and showers during the morning, ending from west to east during the afternoon. High 57-64, possibly a little warmer near the South Coast and Cape Cod.

Tuesday night: Gradual clearing. Low 44-51.

Wednesday: A mix of sun and clouds, milder. High 62-69.

Thursday: Partly to mostly sunny, breezy. High 65-72.

Friday: Plenty of clouds with some showers likely. High 65-72.

Saturday: Early clouds, then becoming partly sunny. High 56-63.

Sunday: A mix of sun and clouds. High 54-61.

Weekly Outlook: October 5-11, 2020

We’re not expecting much drought relief again this week, but it won’t be completely bone-dry either.

Most of the region has received 50-75% of the normal amount of rainfall over the past 6 months. Image provided by the Northeast Regional Climate Center.

The week actually starts off with low pressure passing south and east of the region this morning. It will produce some showers across the Cape and Islands, and possibly into parts of southeastern Massachusetts, but once you get north and west of Interstate-95, there won’t be any rain to be found. The system pulls away during the afternoon and high pressure builds in, with skies quickly clearing out. The high will slide offshore tonight, but another weak system will move through on Tuesday, with some more clouds and possibly a few brief showers.

Clouds become more numerous on Wednesday as low pressure heads into the St. Lawrence Valley. While it’ll be warmer, we’ll also have some showers to deal with, and possibly a rumble of thunder as well. The system will drag a cold front across the region Wednesday night, bringing an end to the shower activity.

As has been the case for quite some time, we’re not expecting much rainfall over the next ew days. Image provided by the College of DuPage.

Behind the front, gusty northwest winds will usher cooler air into the region on Thursday despite a decent amount of sunshine. As the winds start to die down Thursday night, we’ll have clear skies, setting up a very chilly night, with some places possibly getting down close to freezing. Friday will be another cool day despite ample sunshine, but then high pressure will slide offshore, resulting in a warming trend for next weekend.

Friday morning could be quite chilly across the region. Image provided by WeatherBell.

Monday: Cloudy during the morning with some showers south of Boston, becoming partly sunny in the afternoon. High 61-68.

Monday night: Clear skies, a little patchy fog is possible in a few spots. Low 45-52.

Tuesday: A mix of sun and clouds, chance for a few showers during the afternoon. High 62-69.

Tuesday night: Becoming mostly cloudy. Low 50-57.

Wednesday: Mostly cloudy and breezy with scattered showers developing, possibly a rumble of thunder. High 66-73.

Thursday: Sunshine and some afternoon clouds, breezy, and cooler. High 58-65.

Friday: Sunny and cool. High 52-59.

Saturday: Partly to mostly sunny, breezy, and milder. High 64-71.

Sunday: A mix of sun and clouds. High 69-76.

The tropics are getting active again. Image provided by the Canadian Hurricane Centre.

Finally, we’ll briefly mention the tropics. Tropical Storm Gamma will continue to produce heavy rain across the Yucatan Peninsula for a few more days as it drifts into the Bay of Campeche. Tropical Depression 26 will likely become Tropical Storm Delta today (it may already have done so by the time you read this). It will bring gusty winds and heavy rain to parts of Jamaica today, then the Cayman Islands and western Cuba over the next few days. It will then head into the Gulf of Mexico, and could threaten the central Gulf Coast later in the week as a hurricane. We’ll have a much more detailed post about the tropics later today or more likely on Tuesday.

Weekly Outlook: September 28 – October 4, 2020

As September ends and October begins, we’ve got some changes coming for our weather pattern.

We start the week off with warm and humid conditions that feel more like late summer than early fall. Thanks to high pressure off the East Coast, southerly flow will continue to pump warm and humid air into the region today and Tuesday. However, we’ll also have plenty of clouds, along with a few showers today and again on Tuesday as a couple of weak disturbances move across the region.

With a little bit of sunshine, temperatures could approach 80 in some spots on Tuesday. Image provided by Weathermodels.com

Tuesday night into Wednesday is when the bigger changes start to happen. A cold front approaches the region Tuesday night, moving through on Wednesday. A low pressure area will ride along this front, bringing in some showers. While the bulk of the activity, especially the heavy rain, looks like it will stay to our west, we will see some beneficial rain here, mainly Tuesday night into Wednesday morning. We may get a bit of a lull Wednesday afternoon and evening, but by Wednesday night, a low pressure area will move off the Mid-Atlantic coastline and head northeastward, passing near or just east of the Cape and Islands early Thursday.

Over the last 6 months, rainfall is generally 5-10 inches below normal across the region. Image provided by WeatherBell.

Some models are showing the potential for heavy rain across eastern New England with this system, but we’re a bit skeptical at this point. We’ve seen the models forecast significant rainfall around here numerous times in the past few months, and it just hasn’t materialized for the most part. Add in the fact that not all the models are showing the heavier rain getting in here, and the fact that even the ones that do haven’t been consistently showing it on every run, and we’ve got plenty of reasons to doubt it. Having said that, droughts don’t last forever, and it does have to start raining more consistently at some point, because this is New England, not Arizona.

The models mostly agree that we’ll have some significant rainfall this week, but they don’t agree on how much or where the heaviest rain will fall. Images provided by Pivotal Weather.

High pressure will try to build in for the end of the week and the weekend with cooler and drier conditions. However, an upper-level low will remain off to our west, and little impulses riding around that low may bring in some more clouds and possibly a few showers, mainly Friday, but possibly Saturday too. Beyond that, it looks like a cooler pattern sets up for next week. There are even a couple of models that show the potential for a storm late next week that may not produce just rain across the higher elevations of northern New England (We’ll be kind and refrain from using that 4-letter word that begins with S that many of you don’t like).

Temperatures may average below normal across the region next week. Image provided by WeatherBell.

Monday: Mostly cloudy with a few showers possible. High 74-81.

Monday night: Partly to mostly cloudy. Low 60-67.

Tuesday: More clouds than sunshine with showers possible late in the day, mainly north and west of Boston. High 73-80.

Tuesday night: Cloudy and breezy with showers likely. Low 62-69.

Wednesday: Cloudy and breezy with some showers around, becoming a steady rain at night. High 69-76.

Thursday: Rain ending early, some clearing in the afternoon. High 65-72.

Friday: A mix of sun and clouds, chance for a pop-up shower. High 62-69.

Saturday: Partly sunny, slight chance for a shower. High 61-68.

Sunday: Some sun early, clouds return in the afternoon. High 58-65.