Yes, It's A Cold Shot Coming To New England, But Not THAT Cold

I always post National Weather Service snowfall prediction
maps in the winter. I couldn't resist posting their snowfall
forecast for this weekend. As you can see, an inch or less
is expected in the high elevations, with maybe a couple
inches atop Mount Marcy, New York. 

 I've been hyping up the so-called cold snap and mountaintop snows coming Friday night and Saturday morning, but we actually should't complain. The weather over the next few days in Vermont really won't be that awful. 

Even Saturday won't be a total disaster. 

It's true that yesterday was the last warmer than normal day we'll see in Vermont for awhile. But this time of year, it can get dreadfully hot and humid.  We don't have to worry about that! 

In the past, it's also gotten much colder than what we're expecting this weekend.  For instance, the record low high temperature on Saturday in Burlington is 50 degrees. The forecast high is 59. 

Instead of all that, outdoor temperatures will be comfortably in 60s daily today through next Tuesday, except for Saturday. And there's no chance of frost except maybe in the coldest hollows of the Northeast Kingdom

We'll call today and tomorrow partly to variably cloudy with just a chance of isolated showers. It will be dry most of the time. Later Friday afternoon will tend to cloud up with a rising chance of showers north as our fast moving "bowling ball" of cold air comes toward us, fresh from the  Arctic Circle. 

THE COLD AIR

The pool of cold air will be over us mostly overnight Friday and Sunday morning. That's when the bulk of the rain (and snow!) will fall. There will probably be a dusting of snow at elevations above 3,500 feet and in higher elevations of the Northeast Kingdom. 

Rainfall for us valley dwellers will vary a lot, with less than a quarter inch south, a third of an inch maybe in the Champlain Valley, a half inch north and east of Interstate 89 and maybe more than three quarters of an inch in the Northeast Kingdom.

Saturday morning will certainly be cold and raw, but some breaks of sun will make things OK in many areas by mid to late afternoon.

SUNDAY-TUESDAY AND BEYOND

Those highs in the 60s during this period will be about five to 10 degrees cooler than average, but well take it. We'll have periods of sun, but also the risk of showers. So it will be the run inside when the rain hits, and a half hour later, it's back outside into the sunshine. t's hard to time out when, those showers might arrive, but the best chance is probably Sunday night and Monday. 

For those of you who like warm summer weather and dislike this cool stuff, there's hope for you, too. The weather pattern will start to change during the middle of next week, and it looks like we'll have at least spells of average to somewhat warmer than average temperatures starting the second half of next week. 

The usual caveat applies: Long range forecasts are iffy, so no promises! 

Gliding Downhill From Summer To (Briefly) Early Spring. How Rare Is Mountain Snow In Late May?

It can snow this late in the season on New England's 
mountaintops. Photo is of eight inches of snow atop
Mount Washington, New Hampshire, June 11, 2023

 Tuesday was a classic summer day. Yes, it's still May but work with me here. Highs in the 80s, sunshine and a slight haze really made me think of July. 

Soon enough, we'll think it's March again.

The forecast hasn't changed much since yesterday. Today will be another sunny one, but slightly cooler with highs in the 70s to low 80s. 

We start to really feel the cool air tomorrow as highs only reach the 60s.  The cold air aloft will bring us a slight chance of light showers.  Friday will be cooler yet as the showers arrive in earnest in the afternoon. 

The core of the cold air - a bowling ball of frigidity from near the North Pole - will arrive in New England Friday night and early Saturday. Yes, it will be cold enough for snow in the mountains. Pretty high up, actually.  Probably at elevations of 4,000 feet and higher.

That means the tippy tops of Vermont's highest peaks could easily turn white. So too, the summits of New York's Adirondacks and New Hampshire's White Mountains. 

The rest of us will endure cold rain showers and temperatures hover in the low to mid 40s Saturday morning. 

HOW UNUSUAL?

Snow so late in the season is pretty unusual for this time of year. Except at places like the summit of Mount Washington, New Hampshire. I believe it has snowed every month of the year up there. 

Late May and June snows are in New England's history quite liberally. According to the Vermont Weather Book:

There is, of course, the famous Year Without a Summer in 1816. On June 7, snow covered the ground all day in Montpelier and drifts reached 20 inches deep in Danville. 

Even more remarkably, a bigger snowstorm hit Vermont on June 11, 1842. Irasburg reported 10 inches of sow and Bennington had four inches. 

In 1884, a large snowfall hit Vermont's mountains, with accumulating even in the valleys. Lunenburg had two inches of snow. 

There hasn't been anything as dramatic as those examples in modern times, but it does snow this time of year. The latest in the season snow flurry in Burlington on record hit on May 31, 1945. Don't worry, Burlington is safe from snow with this go around Friday night and Saturday. 

On May 24-25, 2013, snow fell at elevations as low as 750 above sea level in Vermont. Mount Mansfield received 13.2 inches of snow, its greatest snow fall for so late in the season. Whiteface Mountain, New York came in with a whopping 34 inches. 

I wish I could find information on the following but I can't. I seem to remember snow falling at elevations as low as 600 feet in the early 1990s. The Bolton 'Valley ski area got a couple inches, I believe. 

On June 10, 2023, Mount Washington, New Hampshire had over eight inches of snow, making it their snowiest June on record. It didn't get quite cold enough on Vermont peaks to snow that day.   The cold and snow hit on what was otherwise a very hot summer.

CAN'T STAY COLD

Even when the forces of nature say otherwise, it really can't stay cold, or at least not that cold, this time of year. 

Saturday should stay in the nippy 50s. But despite that cold air coming from Canada, highs should be in the 60s daily Sunday through Tuesday. That's cool for this time of year but still comfortable. It should warm up more later next week. Summer is definitely not canceled. 

Quick Shot Of Summer To Be Followed By Weekend Chill

Lilacs in the foreground, lilacs in the background on this
sunny, warm late May morning in Vermont. But some
"interesting" weather could arrive this weekend. 

It was definitely a soaker of a Memorial Day weekend in Vermont, with virtually everyone receiving at least three quarters of an inch of rain and most places going over an inch. 

The heaviest rain seemed to be in central Vermont, where two day totals included 1.8 inches in Hinesburg, 1.76 inches in Vergennes 1.71 inches in West Bridgewater and 1.68 inches in Warren. 

Also, the last of the snow melted atop Mount Mansfield over the weekend. There was no measurable snow up there for the first time since October 26.  

That's one of the longest "winters" Mount Mansfield has had. But is the snow really done for the season up there on Vermont's highest peak? Read on to find out. 

The clouds were frustratingly slow to move out yesterday afternoon, especially in  northern Vermont. But they finally did toward evening, giving us a short shot at summer for the next couple of days before annoyingly chilly weather returns. Things could get pretty interesting by this weekend. 

Here's how this will play out

TODAY

A squirt of very warm air has moved in from the west. Forecasters have bumped up expected temperatures today so it's going to actually feel kind of hot. Warmer valley floors should get into the mid-80s. Humidity levels should be reasonable, though, and there will be a nice southwest breeze.

WEDNESDAY

Yesterday, I told you about that Omega block setting up around the nation. This thing will make Vermont turn cool, and very cool by the weekend. Before we get there though, the first of a series of cold fronts will have come through by tomorrow, but it won't make too much of a difference. 

It should still get well into the 70s, with some low 80s in broader valleys, including the Champlain Valley. We'll call the skies partly sunny.

THURSDAY

Upper air weather forecast map for Friday night. Click on
image to make it bigger and easier to see. It shows an
upper level, cold low over us. Those blue lines indicate
that it could be cold enough to snow on mountain peaks.

Here's where we begin to feel the north winds. It'll still be sunny, but highs will only reach the 60s, with some low 70s south. That's actually a couple degrees cooler than average for this time of year. But still very nice. Then the fun begins.

FRIDAY

A pocket of very cold air, which looks like a bowling ball on weather maps, will race down from Hudson Bay and score a strike on us here in Vermont starting during the day Friday. It'll be overhead Friday evening into Saturday. 

Given that this is coming straight from dry northern Canada, you'd think there wouldn't be much weather coming out of this. But the dynamics in this "bowling ball" look like they'll be strong, so lots of showers will break out starting Friday afternoon and into Saturday. 

This is really cold air aloft for this time of year. Early guesses are that the snow level Friday night and Saturday morning could fall to 4,000 feet. So,  yes, it would snow on Mount Mansfield if this forecast is correct.

Even if it does't snow, it will be very cold and wet and windy in the mountains, so you might want to postpone your weekend hiking plans. 

SUNDAY AND BEYOND

Sunday looks chilly and showery, too, but probably not as bad as Saturday. After that, a slow warming trend should take hold next week, but it will probably remain cooler than average for at least the first half of the week. 

Soaking Memorial Day Morning Vermont Rain To Yield To Some Sunshine, Finally! "Omega Block" Looms

National Weather Service radar showed lots of soaking
rain across Vermont as of 8 a.m today. But if you have
Memorial Day plans, the rain should exit by late
morning to yield a partly sunny afternoon

As expected, Sunday was a chilly, rainy mess of a day. There were a couple bright spots in the gloom.

Winds were not as strong as expected near the mountains, so there were no power outages to speak of. In western Vermont, the rain tapered off as expected in the late afternoon, so you could sneak in some outdoor activities. 

Most places around the state had roughly a third of an inch of rain, give or take. That was what was forecast south, but it amounted to a little more than expected north. Good for the gardens, so another bonus there. 

Another heavier slug of rain was moving through Vermont early this morning. This rain seemed to be over-performing a little, too. 

Burlington was closing in on an inch of rain today from this morning's disturbance. Forecasts had called for a half inch. We'll see how the rest of Vermont does once this rain is out of our hair. 

The good news is this morning's rain does not mean we will have another entire gray, overcast day to deal with. 

The rain was beginning to end in western Vermont as of around 8:30 a.m. and should be out of eastern Vermont before noon. This afternoon, skies will turn at least partly sunny, and that should send temperature up into the comfortable low 70s, which is more or less normal for this time of year. 

REST OF WEEK

A schematic from Fox Weather showing what an 
Omega block looks like on a weather map. It features
 a northward bulge in the jet stream featuring warm,
sunny weather sandwiched between cooler
somewhat wetter southward dips in the jet stream.

Something called an Omega block in organizing itself in the atmosphere.  That's when a big northward bulge in the jet stream is flanked on either side by deep dips in said jet stream.  It's called an Omega block because the set up on a weather map resembles the Greek letter Omega. 

They're called a block because these patterns gum up the works so that the general weather stays the same wherever you are in the whole setup. 

Omega blocks are hard to dislodge, so they can last for days or even weeks. 

In this case, the big northward bulge will be in the middle of the U.S and central  Canada. Those areas will  have sunny and warn weather. The "dip people" in the northwest and northeast U.S. will be cooler and more unsettled. 

The Omega block is just starting to set up, so the change toward cooler weather around here will be gradual as the dip sends a series of weak cold fronts southward.  Here's how we think it will play out in Vermont

Tuesday: A summer day. The last one we'll have for awhile. Under sunny skies it should reach the low 80s. Some clouds might filter in during the afternoon, especially north, but that shouldn't make much of a difference in what a nice day it will be.

Wednesday: Still very nice, but winds will have shifted into the northwest, so the cooling will just be beginning. Highs should still make it into the 70s.

Thursday: Cooler  yet under partly sunny skies. Highs in the 60s, so now we're into somewhat chillier than average territory. 

Friday/Weekend: By this time, the coldest air aloft will have arrived. That means the strong end of May sun will heat the ground, which creates rapid updrafts into the cold air above. That means showers. It's a little soon to figure out how many showers and who gets the most of it. Best chances for rain will be north nd mountains. 

Depending on how cloudy it gets, it could get quite chilly down here near the surface. If we manage a fair amount of sun, we could get into the low 60s, still nippy for this time of year. If it's cloudier, we hold in the 50s, which is getting weird for this time of year. 

As noted, Omega blocks don't break down easily once they form. Which means we could be stuck with this cool, unsettled weather perhaps through the first week of June. Stay tuned on that one. 

Climate Change, Iran War And El Nino Are Painful, But Might Drive Humanity To Renewable Energy

The Iran war is causing all kinds of economic headaches
worldwide. But in the long run, it could push

As if the world's weather wasn't screwed up enough by climate change, El Nino is about to make it all worse. And Donald Trump's war of choice in Iran might well team up with El Nino to really make things scary. 

First, El Nino, a periodic warming of the equatorial eastern Pacific, seems imminent. As we've already reported, is expected to be huge.  They're calling it a super El Nino, which will make any effects from the phenomenon writ large. 

Strong El Ninos can substantially heat up the world. Earth's temperature is already near record highs thanks to climate change. If El Nino and climate change team up the way forecaster think, weather and climate disruptions in the form of record storms, record heat, massive droughts and floods could really amplify many of the problems the Iran war is causing. 

According to Lawfare:

"A climate change-fueled El Nino will amplify the growing shocks of the Iran war, many of which will unfold over the coming year even in the unlikely case that risk of renewed conflict resolves soon."

The publication noted us the situation is reminding us "That Mother Nature gets a vote on our priorities, too, and that climate resilience is inseparable from global security goals."

Even if by some miracle the Iran war ends tomorrow, the problems and potential crises remain. 

Lawfare again: 

 "Even if the strait is durably opened, it will take time to clear backlogged ships, for insurers to feel confident that transit is safe, and for damaged or shuttered oil and gas facilities to resume production. Countries would normally be stocking up on natural gas over the spring and summer for winter heating needs, and El Nino could further intensity pressure with intensified heat, electricity demand for cooling, and energy grid strips this summer

Countries in Southeast Asia are already scaling back on air conditioning, concerns that dangerous summer temperatures could crash electric grids and kill citizens."

Here in the United States, A Brown University analysis released on May 18 shows Trump's Iran war has cost American consumers $41.9 billion more at the fuel pumps since late February.

OTHER ASPECTS

This isn't just about oil and gas.

A third of global maritime nitrogen fertilizer trade are blocked due to the closed Gulf of Hormuz. Also, says Lawfare, countries that depend on Middle Eastern gas to produce their own fertilizers have shut down production. 

Also, "farmers who are planting tomorrow's food now have been forced to delay planting, switch crops, or accept subpar yields. Food security can be disrupted further as fuel and logistics costs rise, agriculture land is repurposed for newly economical biofuels, and countries potentially react with protectionism and export restrictions that spike prices further."

In the long run, this mess might undermine Trump's goal of propping up the fossil fuel industry. Oil shocks in the 1970s and 1980s, the Gulf War of 1990-91 and the Ukraine war all prompted industry to emphasize fuel efficiency. Global per capital petroleum use declined after the 1970s oil shock and never recovered noted Juan Cole in Informed Consent. 

Cole argues that the Straight of Hormuz crisis shows signs of what he calls a "chronic ailment."  Iran will probably always be tempted to develop a nuclear arsenal. Israel and the United States will probably keep striking. "In short, Israel and the United States have destabilized the Persian Gulf and global oil and natural gas supplies for the foreseeable future."

In other words, the price at the pump is going to stay annoyingly high for a long time. And that's the least of our problems. 

In the United States, Trump is still squawking drill, baby drill.  The Trump administration ended tax breaks worth up to $7,500 last year. Despite that, car buyers in the U.S. will probably keep turning more and more to EVs if gas prices stay high. 

Nations around the world see the writing on the wall.  Cole, in Informed Consent, has many examples. 

In the United Kingdom, EV sales rose a record 24% over the same month a year earlier. It helped that the average cost of  EVs in the UK are now a little less expensive there than similar gasoline-powered cars.  Europe is seeing a big jump in demand for rooftop solar systems. 

China is going through a boom in EV production. In 2024 they produce more than 12 million electric, hybrid and fuel-cell vehicles. India is building an EV future, currently building out a network of charging stations.  Pakistan has reported a boom in electric vehicle sales since the Iran war started.

Asia is especially prone to disruptions in the Persian Gulf oil pipeline, so you can see why the 4.8 billion people there are embracing an electric vehicle future. 

"Those who've fought to keep the world hooked on fossil fuels are inadvertently supercharging the global renewables boom," said Simon Stiell, Executive Secretary of the UN's climate secretariat UNFCCC, as reported in Reuters. 

Trump's war in Iran is all bad news. For us and for Trump. With this war, Trump's goal of propping p the oil and gas industry forever might be slipping through his fingers.   

Roller Coaster: Rainy, Cold Vermont Day In Progress, More Rain Tomorrow Morning, Then Warm, Then Eventually Chilly.

A huge lilac tree in front my house brightens a gloomy
May Sunday in St Albans, Vermont. 

 I'm getting a very late start this Sunday morning, as I decided to really sleep in on a chilly, rainy morning. 

That state of affairs will continue the rest of the day, though it will be a light, occasional rain, and it should turn more showery later in the day. 

Earlier last week, I'd hoped high pressure to our northeast would steer the rain away from us. So much for that idea. But we could still use the rain, despite the drought being over for now. 

But a miserable day for late May is still in progress. Damp and chilly is the word. If you like gloomy late March weather, today is your lucky day. Temperatures in the 40s to around 50 will only go up a couple of degrees by this afternoon. The winds will turn fairly gusty in most areas, adding to the chill.

Most places should have gusts in the 25 to 35 mph range, but spots along the western slopes of the Green Mountains could see it go up to 45 mph.  This would be the first good windy day since the trees leafed out. Leaves are heavy, at least when you're weighting the thousands of them on a single tree.

The new leaves combined with the wind and rain could knock over a few trees. I expect there might be some widely scattered power outages. Nothing widespread or wild, but don't be surprises if your lights flicker if you're on those western slopes. 

Despite the nearly day-long dreariness, we won't actually get much more rain today. Through 9 a.m. most of Vermont had received a tenth to a quarter inch of rain. We'll get another tenth to a quarter inch by the time it gets dark this evening. 

MEMORIAL DAY

Unfortunately, the day will get off to a rough start. The way it looks now, rain will restart before dawn and continue through most of the morning. The rain will be heavier than today's,  amounting to at least a quarter to half inch. Statewide, we now expect storm totals to be somewhere near three quarters of an inch, give or take. So a decent soaking. 

It still looks like the rain will shut off nicely tomorrow afternoon, with some sun breaking out by late in the day. High temperatures will be much better than today, probably reaching a seasonal 70 degrees or so.

THE WEEK AHEAD

After a summer-like Tuesday, in which we'll flirt with 80 degrees, we'll have a slow cooling trend through the week, as an unusual weather pattern sets up. By next weekend, it could well be quite chilly for the season once again. 

It's a little unclear how cool it will get, but I'll more on that in tomorrow morning's post. 

Last Of Vermont Drought That Began Last August Ends. But Could It Quickly Return?

For the first time since the August 21, 2025. U.S. 
Drought Monitor, there is no drought in 
Vermont as of this week. The yellow area
depicts "abnormally dry," which is sort of
on the cusp of drought. The drought
could return as relatively dry weather
is in the forecast after it rains Sunday. 

 For the first time since the middle of last August, there is no drought in Vermont. 

The U.S. Drought Monitor in their report issued Thursday. downgraded drought in southeast Vermont to an area labeled "abnormally dry." That means conditions are still on the cusp of a drought, but it's still not quite there. 

It looks like the soaking rain we had on May 14-15 made a difference and moistened things up a bit. That left Vermont with no areas of drought in the state since the August 21, 2025 edition of the U.S. Drought Monitor was released. 

The question is whether the drought will come back. After this weekend, what appears to be a fairly long, relatively dry spell will arrive. Depending  upon how long mostly dry weather lasts, at least parts of Vermont could end up in drought trouble again. 

Sure, it's going to rain this weekend, and the most rain will fall in southeast Vermont, where it's most needed. 

But the expected rainfall isn't a tremendous amount. 

Total rainfall late tonight through Monday looks like it might range between a quarter inch north and  three quarters of an inch far south. Central Vermont would get a third to a half inch of the forecast holds.

SPECIFIC FORECAST

I'll get into the specifics of this weekend, and the outlook into next week further explains why drought might come back.

Today

High overcast has spread across all of Vermont's skies.  It'll remain that way all day, but tend to thicken up later in the day. Weak sunshine getting through in the north should allow temperatures to reach 70 degrees or so. Temperatures should hold in the 60s south.

Sunday

NOAA's 8 to 14 day outlook has our area on the dry
side at least through June 5

The day will begin with light rain falling roughly south and west of Interstate 89. The light rain will spread into the Northeast Kingdom by at least noon. 

Since the rain will be steadier and somewhat heavier south, and the clouds will be thicker there, many areas of southern Vermont could stay in the 40s pretty much all day. That's ridiculously cold for this time of year, but there you go.

In the north, since rain will be lighter, and in some areas won't start until later in the morning, highs should only get into the low 50s, which is still damn chilly for this time of year.

 Even worse, breezes will make it feel colder. Those breezes will probably be especially gusty along the western slopes of the Green Mountains. 

If you had warm weather outdoor plans for Sunday, you are s*it out of luck. I guess we have to pay for the 90 degree weather we had earlier this week. No good weather goes unpunished.

Memorial Day

Well, it can't get worse than Sunday, so there's that. We will actually see a fair amount of improvement, especially as we get later into the afternoon. It looks like some showers will come through in the morning, but they'll tend to taper off in the afternoon to allow some afternoon sunshine, fingers crossed.

If the sunshine develops, highs should get into the low 70s. If it stays cloudy, we'll settle for 60s. Again, that's a LOT better than Sunday's misery.

NEXT WEEK

A brief warm up, then a cooling trend starting Wednesday and continuing at least into next weekend. 

A steep dip in the jet stream will develop just to our east, and a pool of cold air might settle overhead by next weekend, Though a forecast that far out is iffy, so you can still take it with a big grain of salt. 

If the forecasts do pan out at least sort of correctly, Tuesday will bring us nice highs in the low 80s.  Then it cools into the still very pleasant  70s Wednesday, near 70 Thursday, in the 60s Friday and even cooler than that next weekend. In fact, some models make us quite cold, so we'll see how that works out.

This type of weather pattern features a chance of showers, and we'll have that chance daily starting Wednesday and going into the weekend. But these should be very light scattered showers. And they're more likely to hit northern Vermont and not so much in the south. 

Also, I know long range patterns are shaky, but NOAA has the dry weather in all of New England lasting well into the first week of June. Even longer range forecasts into the middle of June do moisten us up a little to near normal precipitation.