Monday, October 23, 2023

Vermont October "Cold Snap" Really Isn't Cold, Barely Snowed Mountain Tops, Warmth To Return

The National Weather Service in South Burlington
put out this map Sunday showing storm totals 
from Friday into Sunday. Up to an inch of additional
rain fell after this in far northern Vermont. Click
on the map to make it bigger and easier to see.
 I'm still amazed by how a spell of average weather can seem so chilly compared to how weirdly warm it is. 

And spoiler: The warmth will return this week.

It's true that Sunday, as long advertised, was not a nice day.  In far northern Vermont, it rained all day.  In fact here in St. Albans, at least light rain and drizzle has fallen continuously since late Friday night.  It was still drizzling as of 7 a.m. today. 

The extra rain in far northern Vermont really added up. By this morning my unofficial storm total was up to 3.2 inches. 

 The map in this post does not necessarily show rainfall for all of Sunday and Sunday night, so some northern areas really ended up especially soggy, too

Elsewhere in Vermont where there were only occasional showers under gray skies Sunday.  

Rainfall totals through 4:30 p.m. Friday shows widespread two to three inch rain totals throughout western Vermont, all of Bennington and Windham counties and some spots in the Northeast Kingdom.

Despite two record soakers in Burlington this month, the city hasn't quite made it yet into the top ten list of wettest Octobers. So far, 5.6 inches of rain has fallen in Burlington this month. The tenth wettest October had 5.81 inches, so we're close. 

 Depending on what happens toward next weekend, that could change, but we're getting ahead of ourselves. 

WINTRY? NOT REALLY

A colored tree lights up a gloomy morning in St 
Albans, Vermont today. Excuse the bad formatting,
Blogger won't let me position photos where 
they should be today. 
As semi-wintry as Sunday felt, it was actually a pretty average day for late October. High temperatures were a little cooler than average, low temperatures were near normal to slightly on the mild side. 

Mount Mansfield finally had its first snow, which for them was awfully late. To put it in perspective, the average date of the first snow flurries of the season in Banana Belt Burlington is October 15.  The summit of Vermont's highest peak usually gets a little snow way, way before that. 

If you thought Sunday's weather was icky, consider this. On Sunday's date in Burlington way back in 1969, 5.1 inches of snow fell. That 1969 snowstorm was an introduction to what would turn out to be arguably the harshest winter on record, if you consider the combination of very low temperatures and extreme snowfalls. 

Don't worry, we won't be seeing any winter conditions quite yet. 

TODAY

It's going to be tricky to scour out the clouds due to a temperature inversion trapping clouds beneath a layer of somewhat warmer air above.  

Dry air is trying to work in, and that could eventually break up the clouds this afternoon. The best shot at seeing the sun is in the lower Connecticut River Valley, and just maybe valleys of western Vermont, including the Champlain Valley.  

As we've been saying for days, tonight will be chilly, but nothing odd for October.  Many areas away from the Champlain Valley will likely see a frost or freeze, which once again is awfully late for the first one of the season.

Much of the Champlain Valley is going to go another week at least without a frost.

BIG WARMUP

The warm air coming in this week is looking more and more impressive.  This won't necessarily be a big sunshiny and super dry warm spell, but still very odd for this time of year. 

At this point, Wednesday through Friday, it looks like a fair number of clouds will hold temperatures in the 65 to 72 degree range, so we will probably fall just short of daytime record highs. 

The air coming in is fairly humid for this time of year (not uncomfortable like summer, but still a little muggier than you'd expect in late October). That means nights, especially in the Champlain Valley will be ridiculously warm. Like leave your windows open warm. 

Lows should be in the upper 50s to maybe near 60 Wednesday and Thursday nights in the Champlain Valley and closer to 50 in central and eastern Vermont. This sets the stage for some possible record warm overnight lows Thursday and Friday. 

It'll probably turn cooler again next weekend. 

Winter will eventually get here. I noticed the first winter storm watches of the season today in Washington State and the northern Rockies. Eventually the cold air will get here. In fact, some long range forecasts call for colder than normal temperatures here during the first week in November


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