Surface low pressure across the Ohio River Valley on April 26th slowly moved across the southern New England coast into the Gulf of Maine on the 27th and 28th. Meanwhile, a cold, strong upper atmospheric area of low pressure moved from Quebec across northern New England.
This resulted in an abnormally cold, unstable and moist air mass across northern New York and northern Vermont which produced largely orthographically enhanced snowfall across the Vermont-Canadian border as well as the higher terrain of the northern Green Mountains, northern Champlain Valley and northern Connecticut River Valley.
The snow began in western Vermont by mid-morning of the 27th and across eastern Vermont during the afternoon and continued overnight before it slowly diminished during the late morning and afternoon hours of the 28th. Accumulations of a heavy, wet snow ranged from 4 to 12 inches in the valleys with 10 to 24 inches above 800 feet elevation in favored northwest facing slope communities. This heavy wet snowfall resulted in numerous downed tree limbs, branches and trees which caused scattered  power outages that affected over 20,000 customers.
Some specific snowfall totals included; 4 inches in Cornwall (Addison county), Isle La Motte (Grand Isle county), Chelsea (Orange county), 6 inches in Swanton (Franklin county), NWS Burlington in South Burlington (Chittenden county), 8 inches in Essex Junction (Chittenden county), Stowe (Lamoille county), Newport (Orleans county) and Waterbury (Washington county) with 12 inches in South Lincoln (Addison county), Lyndonville (Caledonia county), Enosburg Falls (Franklin county), Brownington (Orleans county) and Marshfield (Washington county), 16 inches in Hardwick (Caledonia county), Sheldon Springs (Franklin county) and North Calais (Washington county), 20 inches in Walden (Caledonia county) and 24 inches in Jeffersonville (Lamoille county), Nashville and North Underhill (Chittenden county).

Winter Storm in ESSEX, VERMONT
From 27-APR-10 14:00:00 to 28-APR-10 15:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WESTERN FRANKLIN, VERMONT
From 27-APR-10 08:00:00 to 28-APR-10 12:00:00 (EST-5)
Property damage: 20.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in EASTERN ADDISON, VERMONT
From 27-APR-10 09:00:00 to 28-APR-10 12:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in WASHINGTON, VERMONT
From 27-APR-10 12:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 25.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in EASTERN FRANKLIN, VERMONT
From 27-APR-10 08:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 15.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in EASTERN CHITTENDEN, VERMONT
From 27-APR-10 08:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 15.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in ORLEANS, VERMONT
From 27-APR-10 12:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in LAMOILLE, VERMONT
From 27-APR-10 10:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 15.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Weather in GRAND ISLE, VERMONT
From 27-APR-10 08:00:00 to 28-APR-10 08:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Weather in WESTERN CHITTENDEN, VERMONT
From 27-APR-10 08:00:00 to 28-APR-10 12:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Weather in WESTERN ADDISON, VERMONT
From 27-APR-10 10:00:00 to 28-APR-10 10:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Weather in ORANGE, VERMONT
From 27-APR-10 15:00:00 to 28-APR-10 12:00:00 (EST-5)
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Winter Storm in CALEDONIA, VERMONT
From 27-APR-10 13:00:00 to 28-APR-10 14:00:00 (EST-5)
Property damage: 10.00K
Crop damage: 0.00K
Reported by: COOP Observer