Tuesday Evening Vermont Weather Update: Shockingly Warm Today, Still Expected Yo-Yo Temperatures Now Through Thursday

Henry the Weather Dog on Tuesday got to do something
he hasn't really been able to do since October: Bask in the
warm sun. You can sort of see him smiling there
he was so happy 

The warmth in Vermont and surrounding areas really over-performed today, didn't it? 

It felt almost like summer. Henry the Weather Dog was able to bask in the warm sun for the first time since October. He was one happy camper!

I think some compressional warming ahead of the cold front that entered northern Vermont this afternoon helped boost the temperatures. The front, as it pushed southward, sort of squeezed the air, i.e. compressing it. When air compresses it tends to warm up. 

Whatever caused it, things were incredibly balmy.  Burlington reached 73 degrees, according to preliminary data. That  shatters the previous record high of 63 set in 2002. It's also the hottest temperature for so early in the season. Those "so early" or "so late" in the season record highs are especially hard to achieve. But Burlington managed it today. 

Other record highs include 63 degrees in Plattsburgh, NY; 71 degrees (wow!) in St. Johnsbury (old record was 64 in 2016);  and 67 in Montpelier, old record 60 in 2016). 

 Rutland and Springfield got up to at least 70 degrees, Bennington was at least 73 degrees. So much for my prediction this morning that there was just a chance a place or two in Vermont might reach 70.  Instead it was pretty widespread. 

The temperatures I listed are not final figures, so they might be updated later.  

COLDER AIR

I mentioned the cold front. Once it arrives it means business. Highgate was one of the first Vermont towns to see the cold front. They got up to 66 degrees at around 1:30 and were down to 51 buy 5 p.m. Burlington dropped ten degrees to 59 in the hour ending at 5 p.m. 

In most of central and northern Vermont, temperatures will bottom out in the 30s, and it'll get below freezing in some spots north of Route 2.  The northern Champlain Valley has the best shot at going below freezing. 

A winter weather advisory is still in effect for Grand Isle County late tonight and tomorrow morning for the risk of light freezing rain.  There could be some icy spots on the roads tomorrow morning there. And perhaps elsewhere in far northern Vermont. 

At least Vermont will miss out on the worst of this ice storm. Far northwest New York, southern Quebec from Ottawa to Montreal to Sherbrooke, northern and Central Maine and even northern Michigan. 

 WEDNESDAY

A large ice jam was still holding firm along the Missisquoi
River in Enosburg as of late this morning. 
Ice jams and regular flooding are a threat through
Thursday with more snow melt and expected rain. 

It does look like our storm will go by to our northwest, which means winds should shift to southerly during the day tomorrow. 

Highs should get into the 50s in western Vermont, maybe even low 60s southwest. The warmer air will have a bit of a harder time getting into eastern Vermont, but it will be above freezing. 

It probably won't rain much during the day except in the northwest. But today's warmth, lingering ice jams, snow melt and that rain will keep the risk of flooding going into Thursday. 

I noticed late this morning a large ice jam was holding pretty firm on the Missisquoi River in Enosburg , and it was causing minor flooding. 

Thursday will turn sharply colder and windy. And an active weather pattern will continue afterward. I'll have much more on that in tomorrow morning's post.