o Alert in effect for multiple precipitation types rising close to but under thresholds for Utility concern.
o Snow will fall moderate at times with up to an inch per hour intensity this afternoon especially the southern 3/4s of VT before somewhat of a break or lull track in between two separate impulses.
o Wettest snowfall nearest the Massachusetts border region for a short period of time late today and this early evening
o A lull with spotty wintry mix to follow tonight with light glazing of around tenth of an inch for a break before freezing rain and rain intensifies some Saturday.
o Surface temperatures remain below freezing most of Saturday where glazing of a tenth to ¼” was most likely with primarily eastern half of Vermont affected with highest QPF and glazing Windham-Windsor- southern Orange counties and secondarily pockets of northern Vermont...
o Worst of glazing roughly 5 AM through 4 PM in the afternoon Saturday.
o Freezing rain and rain to change back to medium dry snowfall for a few hours with additional accumulation of 2 to locally 6” with the most along the western slopes of the central and northern Green Mountains but should not be a Utility factor.
o Next update 7 PM this evening.
Synopsis: Snow continues at higher intensities as the peak of first impulse moves through between now and this early evening and snowfall begin to lighten considerably from west to east. This first impulse will bring medium-dry quality powder.
Lull - There should be not quite a break but a lull or sorts with precipitation becoming a wintry mix but light and spotty beginning mid to late evening and continuing into the overnight hours...but a transition to glazing will take place before daybreak region wide.
Glazing – warmer air aloft work in just ahead of the impulse number #2 with shallow low level subfreezing air trapped east of the Green Mountains when generally light amounts of freezing rain will accrue with at least an 1/8th to a little over ¼” freezing rain to make for some portion of “radial ice” -- this looks to be just under thresholds for tree limb damage but there could be isolated spots notably east of the Green Mountains especially southern Orange County southward into Windsor and Windham counties.
Backend snowfall – snow will begin to return late in the day far northern areas Champlain valley overspreading the state most concentration likely along the western slopes if central and northern Green Mountains...late Saturday into Saturday evening before this storm exits.
We should see the last of the storm system push out before midnight Saturday night but not before an additional 2 to locally 6” of new snowfalls. Essentially an “ice sandwich” or snow to ice to snow.
END/RH
