| Interstate 89 in Colchester as the heavy snow showers passed through this morning. If you look closely in upper left corner, it looks like a car is off the road and in a ditch. |
As of 7:30 a.m. a narrow band of heavy snow was in a southwest to northeast oriented band over Chittenden County and northern Vermont near the Green Mountains.
It was heading southeastward, ,continuing to head down Interstate 89 toward Montpelier. The burst of heavy snow was approaching Waterbury as of 8:30 a.m.
It wasn't quite considered a snow squall as of this writing, but it was close. Underneath this burst of snow, visibility is really bad and the roads got from clear to snowy in a flash.
Traffic cams showed Interstate 89 going from near-perfect to snow covered and pretty gnarly within minutes when the heavy snow band arrives
The snow doesn't stop after the almost-snow squall goes through. More snow showers continue after it, so road crews won't immediately be able to get road conditions pristine. It was still snowing at a decent clip here in St. Albans an hour and a half after that initial band of heavier snow came through.
In fact, it looks like a second heavy band of snow was setting up over Franklin County, and that could cause more trouble across northwest and north-central Vermont between 8:30 am. and mid-morning.
Bottom line, if it has already snowed where you are in northern Vermont, the road conditions won't get better fast. If it hasn't snowed yet where you are, you'll see a quick shift to those icy roads.
The line of snow will reach southern and eastern Vermont later this morning, maybe very early in the afternoon down toward the southeast corner.
THE ARCTIC BLAST
| Traffic cam image from this morning after the worst of the sow had passed shows traffic backed up on northbound Interstate 89 between South Burlington and Colchester, due to reported crashes. |
The forecast for tonight is unchanged. The winds will diminish a little, but still be strong enough to get wind chills as low as the teens below zero.
Actual temperatures are still going to bottom out tomorrow morning within a few degrees either side of zero.
This is going to be a particularly brutal cold snap up in the mountains. I'd forget the back country skiing this afternoon and tonight.
If you want extremes, the summit of Mount Washington, New Hampshire is expecting lows overnight that could threaten the record low of 21 below. Add in Mount Washington's usual extreme winds and that makes things outdoors unsurvivable up there.
It stays cold tomorrow, then it'll marginally warm up Saturday, just in time for the next Arctic front. The worst of the next cold snap, with highs in the teens and lows in the single numbers above or below zero, will run from Sunday night through Tuesday morning.
At this point, unless something changes that I don't yet know about, it should stay generally colder than normal most days around here at least through about December 20.
