Freeze Warnings and Frost Advisories are up throughout much of the state of Vermont tonight.
Parts of the Northeast have had bouts of sub-freezing temperatures since the end of August, but tonight looks like the first widespread occurrence of the season throughout Vermont. We’ve got a frost advisory here in Washington County, but it sounds like some of the colder areas of the state up in the Northeast Kingdom could get down into the middle 20s F, and freeze warnings are in place. It’s certainly time to cover up those gardens in the usual cold spots.
Sub-freezing temperatures are forecast for much of Vermont tonight.
Since it’s the end of August, it probably shouldn’t be that surprising that autumn-like weather is touching the Northeastern U.S., with freezing and sub-freezing temperatures hitting some of the usual cold spots. This has been one of the coldest winters we have had for a long time. For that reason, it is paramount that anyone who has a broken furnace visits https://www.burichvac.com/ in order to find a professional repair service. Equally, you might want to consider having your furnace or central heating system serviced, even if it hasn’t been showing any signs of breaking. These sorts of things should have regular maintenance and just before a very cold spell is the perfect time to check that they are working as they should be. The last thing you’d want is your heating to break as the freezing and sub-freezing temperatures hit. It is simple to find a business who offers these services; citizens of North Dakota, for example, should search for “home heating fargo” (or whatever city they call home) to find an appropriate business. This weather can be very dangerous especially for old people and those that have pre-existing health conditions should take extra care during the winter months. These days often sneak up on us though amidst the typically pleasant weather at the end of summer.
Date Snow at the stake (in.)
9/15/1959 1
9/16/1986 4
9/17/1986 2
However, assuming they have historically been using the same practice of reporting the depth of the snowpack at the end of the day (~5:00 P.M. or so) as they do now, it was likely that there was overnight September snowfall that simply didn’t make it through the entirety of many warm, September days to be reported from the stake. Therefore, I also checked the snowfall data, and found that indeed there are a fair amount of reports of September snowfall:
There are a few years with no data, but accumulating September snow does happen on Mt. Mansfield, at a rate of roughly a couple times each decade. I’m not quite sure what was going on with the 2009 number, since one doesn’t generally report snowfall to the hundredths of an inch; perhaps they are reporting a trace on that one. Not surprisingly, September snowfall is more frequent on Mt. Washington with a couple thousand feet of extra vertical – the September monthly average there is 2.2” inches, and the monthly maximum is almost 8 inches, so accumulating September snow is probably fairly common.
I also scanned the Mt. Mansfield data for August, and there was even one report of accumulation there:
Date Snowfall (in.)
8/28/1986 0.20
Since there was also mention of October, I took a look at those data as well. Because accumulating October snowfall is already fairly common even down here in the mountain valleys of the Northern Greens (out of the six season’s worth of snowfall data I have collected here, four Octobers have seen accumulating snowfall, and the average is right around an inch) I figured that getting October accumulation on Mt. Mansfield must be almost a lock. Indeed that’s the case; after checking the snowpack data from 1954 – 2012, there are only a handful of seasons without reported snowpack, and one of those seasons did at least show some snowfall:
Seasons without reported October snowpack on Mt. Mansfield
1956-1957
1963-1964 – 0.1” snowfall
1971-1972
1973-1974
1985-1986
1996-1997
2007-2008
So essentially it’s about twice a decade that there is accumulating snow on Mt. Mansfield in September, and about once a decade that there isn’t accumulating snow on Mt. Mansfield in October.
Summer is moving along here in Northern Vermont, but at J&E Productions we’ve still been thinking about the winter of 2011-2012, and we’ve finally analyzed our reams of weather data and put together our 2011-2012 Winter Weather Summary. In this post I’ve hit on some of the highlights that came out of the data, and attached our various plots and graphs, but to get to the full data set, you can use the following link:
The first item that I’ll highlight from the winter of 2011-2012 is the monthly snowfall plot for our location. As meager as the snowfall was this season at our location (just 115.3″ of snow, or 67.0% of our 2006-2011 average), the monthly distribution of snow did retain an aesthetically symmetrical look, peaking in January with February close behind:
Snowfall at our house in Waterbury was relatively low during the 2011-2012 winter season, but the monthly distribution was quite symmetrical, peaking in January.
So although 2011-2012 will go down as our least snowy in the six years that we’ve been collecting snowfall here in Waterbury, the 67.0% of our 2006-2011 calculated average is relatively decent compared to the snowfall experienced at some of the first-order New England stations like Burlington (51.4%) or Boston (21.2%). These types of seasons happen, but next season is already closing in fast, and hopefully snowfall totals will be much improved.
The next piece of information is our updated yearly snow/snowfall data table, with the 2011-2012 season now included.
When compared to the previous five seasons, the 2011-2012 winter season at our house in Waterbury was the lowest in snowfall, maximum snow depth attained, and snowpack on the ground as assessed by snow depth days. As you can imagine, it gets pretty cold at the house and so it’s always important to make sure that the heating system works. Maintaining it can be easy if you get hold of professionals in your area such as these – thecomfortdoctors.com/heating-and-cooling-services-wilkes-barre-pa/.
The table touches on some of the highlights (or in this case lowlights) from this past winter season (top data row of the table). The 2011-2012 winter season had the somewhat dubious honor of being the “worst” in our data set in three categories: total snowfall, maximum snow depth, and snow depth days (see the red entries in the top row). The snowfall and max snow depth values weren’t all that far from the runner up values, but the big standout was snow depth days, which was well below the next closest season. It’s amazing to see a number so far below the 1,000 day·inches mark, which speaks to the state of the snowpack this season. We still had continuous snowpack at the house for about three months (vs. the typical four months) but the big factor in the low snow depth days was that the snowpack just never got that deep. It sat around at a bit below the one foot mark for most of the season and just didn’t build beyond that except for a couple of periods in February/March:
At our house in Waterbury, the 2011-2012 winter season featured a fairly meager snowpack that sat around the one-foot mark for much of the season, and topped out at just one and a half feet.
With only six seasons worth of data, the low snowfall this season did deal quite a blow to the overall calculated snowfall average, dropping it by almost 10 inches from up above 172 inches per season down to 162.7 inches per season. That’s probably Mother Nature at work getting to her real averages after some banner years. Even though two of the past six seasons have been up around 200 inches of snowfall, presumably that is going to happen only so often. Nonetheless, snow of any size will cause extremely cold temperatures. As a result, make sure your heating is working properly. If not a repair kc team will be able to ensure everything is in working order. However, if you are unable to use these services you must look around for ones that are in your vicinity and can get to you in the proper amount of time. You may want to check here to see who may be available to you. Now back to the science that can help us determine the measurement of snowfall.
As for the rest of the parameters that I track in the table, they were either right around or slightly better than average this season. An interesting note is that the number of snowstorms this season (45) was right around average, so naturally with low snowfall, the amount of snowfall per storm had to take a hit. Indeed, while the average amount of snowfall per storm is typically up around 4 inches, this season it came out at just 2.6 inches, so there were clearly a lot of systems that were weak on snow. This average snowfall per storm was a huge deviation from the mean (almost 2 S.D.), so that must say something about the weather pattern during the past winter, even if I’m not exactly sure what it is at this point.
While the detailed reports of the 45 accumulating snowstorms from the past season are available with more information at the 2011-2012 winter weather summary page, they’ve also been posted here for quick access. If you know of a storm that interests you, you can head right to it. The reports are comprised of text, links, graphs, photos, etc., and much of the text is derived from my posts and dialog from the Americanwx.com New England regional forum. Thanks to the great features available on the forum, you can click on the icon associated with any quoted text in the report, and you’ll be linked right to that post its respective thread. Hopefully this will be useful for folks that are researching/reviewing winter storms. The list of linked winter storms observed at our house is listed below:
Something new that we’ve also added this season is a gallery of our snow measurement devices in action, so other folks that measure snowfall may enjoy those images:
Fresh snow from our pre-Thanksgiving storm coats an evergreen near the 2,800' elevation as I ascended Bolton Valley's Schuss trail today.
Our first big Northern Vermont storm of the season came in with a nice thump of snow during the overnight hours, and I awoke to find 7.1 inches of moderately dense snow on the snowboard for my 6:00 A.M. report to CoCoRaHS. Later in the morning the National Weather Service Office in Burlington put out a map showing the overnight snow totals, but the snow was still coming down. Snow continued to fall at the house all morning, and while it gradually tapered to very light snow, we picked up a few more inches to bring us into double digits for the storm total.
We played out in the snow for a while with the boys, and then in the mid afternoon I had to decide if I wanted to get out and make some turns in the new snow. Ideally I was looking for a place where man-made snow had been put down as a base, but unfortunately most of the mountains that had been making snow were actually opening for lift-served skiing. I thought about Sugarbush, since they aren’t opening until tomorrow, but they’ve been a bit testy with people earning turns in recent years and I didn’t want to drive over just to get turned away.
I eventually decided that I’d pop up to Bolton and see how the snow looked. I wasn’t expecting much in terms of skiing without a prior base, but perhaps I’d be pleasantly surprised. The temperature had gone a couple degrees above freezing at our house (elevation 495’), so the snow had been falling off the trees and the snow in the yard had also settled a bit. As Powderfreak had mentioned, the snow accumulations really did fall off as I headed a couple of miles west past the Waterbury/Bolton line. At the base of the Bolton Valley Access Road (340’) it was really amazing, there were just a couple inches of snow on the ground from the storm. It had me really worried about what went on up at the mountain, but fortunately the snow depths began to increase as I climbed in elevation as usual. Up at around 1,000’ near the Bolton Valley Resort sign, it looked like there were about 4 inches on the ground, and by the time I reached the Timberline base at 1,500’ it was notably deeper. I stopped in near the lodge and did a quick measurement with my pole to reveal 8.5 inches of settled snow. I saw one guy putting his skins on his skis for a tour, and noticed a couple of other cars that might have belonged to skiers, but I decided to head up to the main base area and see if things got a bit deeper. While at the base of the access road the temperature had been a couple degrees above freezing just like at our house, it dropped to around the freezing mark by the Timberline base, and it was a couple degrees below freezing up at the village (2,100’). As soon as I parked the car I checked the snow depth there, and found that it was about 10 inches. To read the full report and check out the rest of the pictures, head to the Bolton Valley trip report from today.
Winter Weather Advisories are up throughout the state of Vermont for the upcoming storm
While the Northeast has already had a couple of big, snow-producing synoptic storms so far this season (one on October 27th, and another on October 29th), for Northern Vermont these events were fairly minor because the area was really on the fringe of the precipitation. A storm is developing now however, which is expected to bring more substantial accumulations to the northern part of the state. This storm is expected to head into the Ohio Valley later today, and then track east across Southern New England overnight. This storm may have some mixed precipitation with it, but the current forecasts do not indicate much mixing in the northern areas, and the chance is there for greater than 6 inches of snowfall. Many local residents are already predicting damage to their homes and are already seeking services from the likes of https://seiroofing.com/roofing-services/. Snow can easily damage the roof of a home, especially if there is a lot of it. It’s a good idea to get roofs regularly maintained to make sure they are strong enough to cope with this snowfall. Perhaps some homeowners might want to consider contacting those at JAE Construction for help with their roof maintenance. It’s always better to prevent roofing damage where possible, regular maintenance can help with this. Damage from the storm could include water damage that homeowners may need to address with restoration services. Water damage can put stress on a home’s water pipe network and cause leaks. With this being the case, services that can clean up sewage leak incidents may well be in high demand following severe floods so it may be worth looking up such services local to you in advance. For a few more details, part of my morning report to the New England Regional Forum at American Weather is added below:
It was 17.6F and dropping when I left the house this morning around 6:00 AM, so this will certainly come in as the coldest morning of the season at our location thus far. I flipped on The Weather Channel before I left the house, and was surprised to see that the local forecast called for 6 to 10 inches at the Winter Weather Advisory level, but after reading the BTV forecast discussion, they spoke of the potential for mixing keeping totals down. The current point and click for our area down in the valley calls for 4 to 9 inches of snow, but doesn’t mention any mixing at this point.
Snow is expected from tonight through Wednesday night, even for our location down in the Winooski Valley.
Today: Sunny, with a high near 34. Calm wind.
Tonight: Snow, mainly after 1am. Low around 24. South wind at 6 mph becoming north. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Wednesday: Snow, mainly before 4pm. High near 35. North wind between 3 and 8 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night: A chance of snow showers, mainly before 7pm. Partly cloudy, with a low around 20. North wind around 6 mph becoming calm. Chance of precipitation is 30%.
I didn’t really see much of a bump in the point forecasts for the local mountains, so we’ll have to see if that gets refined for the higher elevations. I’ve added the projected snow accumulations map from National Weather Service Office in Burlington below:
The National Weather Service projected snowfall accumulations map for the northern portions of Vermont and New York as of the early morning on November 22, 2011
Tuesday, November 22nd, 2011 – Afternoon Update
The National Weather Service Office in Burlington has put out their afternoon update for snow accumulations, and our area has been upgraded to a Winter Storm Warningto reflect the potential snowfall. The latest advisory and projected accumulations maps have been added below:
Winter Weather Advisories have now been upgraded to Winter Storm Warnings in some parts of Vermont and Northern New York to reflect the anticipated snow accumulations.
The afternoon update for expected snowfall from the National Weather Service in Burlington
Tuesday, November 22nd, 2011 – Evening Update
This evening, Matt Noyes posted his latest snowfall prediction map for this storm, and he’s pretty bullish on some of the totals in Northern New England, including parts of Northern Vermont. I’ve added his map below:
Matt Noyes’ snowfall map for Northern New England with the upcoming storm
