Low pressure formed off the Florida coast on the 28th and gradually drifted north into the evening. The storm began to rapidly strengthen as the upper trough started to take on a negative tilt very early on the 29th. The storm tracked north northeast to a position off Cape Cod where it briefly stalled before continuing on towards Nova Scotia early on the 30th. The storm remained too far to the east to bring much warm air advection precipitation to the area, but strong frontogenesis occurred in the mid levels northwest of the low center. The result was a heavy band of snowfall that more or less paralleled the coast before pivoting inland over central and Downeast Maine. In addition to the heavy snowfall, a strong northeast low level jet developed and brought damaging wind gusts to much of the coastline. Blizzard conditions occurred at the Seacoast and near-blizzard conditions occurred well inland.

Blizzard in COASTAL ROCKINGHAM, NEW HAMPSHIRE
From 29-JAN-22 11:00:00 to 29-JAN-22 19:00:00 (EST-5)
Reported by: ASOS

Light snow began on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England and remained mostly over the Gulf of Maine until midday. The band backed into the Seacoast and remained relatively stationary until into the evening. Heavy snowfall combined with north northwest winds gusting between 40 and 50 mph to produce near-whiteout conditions at times. The Portsmouth International Airport at Pease measured a peak wind gust of 47 mph. Blizzard conditions were most prevalent in the mid to late afternoon hours. By the time snow tapered off in the evening  snowfall ranged from 10 to 13 inches.

Blizzard in STRAFFORD, NEW HAMPSHIRE
From 29-JAN-22 09:00:00 to 29-JAN-22 16:00:00 (EST-5)
Reported by: ASOS

Light snow began on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England and remained mostly over the Gulf of Maine until midday. The band backed into the Seacoast and remained relatively stationary until into the evening. Heavy snowfall combined with north northwest winds gusting between 40 and 50 mph to produce near-whiteout conditions at times. Skyhaven Airport measured a peak wind gust of 43 mph. Blizzard conditions were most prevalent in the mid to late afternoon hours. By the time snow tapered off in the evening  snowfall ranged from 8 to 11 inches.

Winter Storm in CHESHIRE, NEW HAMPSHIRE
From 29-JAN-22 04:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 8 inches in the higher terrain of the Monadnocks to 2 inches along the Connecticut River.

Winter Storm in WESTERN AND CENTRAL HILLSBOROUGH, NEW HAMPSHIRE
From 29-JAN-22 04:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 9 inches near Rindge to 4 inches near Hillsboro.

Winter Storm in EASTERN HILLSBOROUGH, NEW HAMPSHIRE
From 29-JAN-22 06:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 6 to 10 inches.

Winter Storm in INTERIOR ROCKINGHAM, NEW HAMPSHIRE
From 29-JAN-22 06:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 7 to 10 inches.

Winter Storm in STRAFFORD, NEW HAMPSHIRE
From 29-JAN-22 07:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 8 to 11 inches.

Winter Storm in BELKNAP, NEW HAMPSHIRE
From 29-JAN-22 08:00:00 to 29-JAN-22 21:00:00 (EST-5)
Reported by: Trained Spotter

Light snow began very early on the morning of the 29th, with the intensity of snowfall picking up after daybreak. An intense band of snow developed around mid morning over southern New England but remained mostly over the Gulf of Maine, only backing into the Seacoast during the afternoon. Some moderate to occasionally heavy snowfall did occur west of the band before snow tapered off in the evening. Snowfall ranged from 2 inches near Squam Lake to 9 inches near Alton Bay.