Low pressure developed off the coast of the Carolinas early on the 13th. The low deepened rapidly overnight into the morning of the 14th. The storm became occluded off of Cape Cod and retrograded into the Gulf of Maine, where it stalled through the morning of the 15th. Given the later season nature of the storm, precipitation type was highly dependent on elevation and time of day. Snow began earlier for higher elevations, and it took until late afternoon and early evening for lower elevations to change to accumulating snowfall. Heavy, wet accumulations and gusty winds led to widespread power outages south of the White Mountains, with the Monadnock Region being hit the hardest. Power outages peaked around 80K, with the majority of outages across southwest, New Hampshire. After the storm occluded the precipitation intensity came down quickly and remained off and on snow showers into the 15th.

Winter Storm in EASTERN HILLSBOROUGH, NEW HAMPSHIRE
From 14-MAR-23 04:00:00 to 14-MAR-23 23:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Merrimack Valley during the early morning on the 14th. Snowfall quickly became moderate to heavy at times. Snowfall totals ranged from 8 to 14 inches. Power outages were widespread where snowfall totals exceeded 10 inches.

Winter Storm in WESTERN AND CENTRAL HILLSBOROUGH, NEW HAMPSHIRE
From 13-MAR-23 22:00:00 to 15-MAR-23 00:00:00 (EST-5)
Reported by: Trained Spotter

Precipitation began as light snow in the Monadnock Region during the late evening on the 13th. Overnight snow became moderate to heavy at times. Snow accumulation was highly dependent on elevation, with the lowest totals near the Merrimack River Valley. Snowfall totals ranged from 8 inches in the valley to more than 30 inches in the Monadnocks. Power outages were widespread where snowfall totals exceeded 10 inches, along with numerous downed trees and closed roads.

Winter Storm in CHESHIRE, NEW HAMPSHIRE
From 13-MAR-23 22:00:00 to 15-MAR-23 00:00:00 (EST-5)
Reported by: Trained Spotter

Precipitation began as light snow in the Monadnock Region during the late evening on the 13th. Overnight snow became moderate to heavy at times. Snow accumulation was highly dependent on elevation, with the lowest totals near the Connecticut River and around Keene. Snowfall totals ranged from 9 inches in the valleys to more than 30 inches in the Monadnocks. Power outages were widespread where snowfall totals exceeded 10 inches,  along with numerous downed trees and closed roads.

Winter Storm in SULLIVAN, NEW HAMPSHIRE
From 13-MAR-23 22:00:00 to 14-MAR-23 23:00:00 (EST-5)
Reported by: Trained Spotter

Precipitation began as light snow in the Upper Valley during the late evening on the 13th. Overnight snow became moderate to heavy at times. Snow accumulation was highly dependent on elevation, with the lowest totals near the Connecticut River. Snowfall totals ranged from 10 inches in the valley to 24 inches in the higher terrain. Power outages were widespread where snowfall totals exceeded 10 inches,  along with numerous downed trees and closed roads.

Winter Storm in SOUTHERN GRAFTON, NEW HAMPSHIRE
From 13-MAR-23 22:00:00 to 14-MAR-23 22:00:00 (EST-5)
Reported by: Trained Spotter

Precipitation began as light snow in the Upper Valley during the late evening on the 13th. Overnight snow became moderate to heavy at times. Snow accumulation was highly dependent on elevation, with the lowest totals around I-93 in the Pemigewasset Valley. Snowfall totals ranged from 3 to 4 inches in the valley, to 12 inches in the higher terrain.

Winter Storm in BELKNAP, NEW HAMPSHIRE
From 14-MAR-23 06:00:00 to 14-MAR-23 22:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Lakes Region during the morning on the 14th. Snowfall quickly became moderate to heavy at times, especially south and east of Lake Winnipesaukee. In the lowest elevations, where winds were downsloping off the Ossipees, snow totals were around 2 to 3 inches. In the higher terrain of southeast Belknap County snow totals were as high as 15 inches.

Winter Storm in SOUTHERN CARROLL, NEW HAMPSHIRE
From 14-MAR-23 03:00:00 to 14-MAR-23 22:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Lakes Region during the early morning on the 14th. Snowfall quickly became moderate to heavy at times, especially near the Ossipees. Wwhere winds were downsloping off the mountains snow totals were around 4 inches. In the higher terrain southeast of Lake Winnipesaukee snow totals were as high as 19 inches.

Winter Storm in MERRIMACK, NEW HAMPSHIRE
From 14-MAR-23 04:00:00 to 14-MAR-23 23:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Merrimack Valley during the early morning on the 14th. Snowfall quickly became moderate to heavy at times, especially in the higher terrain. In the lowest elevations around I-93 snowfall totals were around 5 or 6 inches. In the higher terrain around Mount Sunapee snow totals were as high as 24 inches. Power outages were widespread where snowfall totals exceeded 10 inches.

Winter Storm in STRAFFORD, NEW HAMPSHIRE
From 14-MAR-23 04:00:00 to 14-MAR-23 22:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Lakes Region during the early morning on the 14th. Snowfall quickly became moderate to heavy at times, especially in the higher terrain. Snowfall totals ranged from 10 to 17 inches, with the highest totals observed in the higher terrain southeast of Lake Winnipesaukee. Power outages were widespread where snowfall totals exceeded 10 inches.

Winter Storm in INTERIOR ROCKINGHAM, NEW HAMPSHIRE
From 14-MAR-23 04:00:00 to 14-MAR-23 23:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow in the Merrimack Valley during the early morning on the 14th. Snowfall quickly became moderate to heavy at times, especially farther from the coast. Snowfall totals ranged from 6 inches, near I-95, to 17 inches. Power outages were widespread where snowfall totals exceeded 10 inches.

Winter Storm in COASTAL ROCKINGHAM, NEW HAMPSHIRE
From 14-MAR-23 10:00:00 to 14-MAR-23 22:00:00 (EST-5)
Reported by: Trained Spotter

Rain changed to snow at the Seacoast during the morning on the 14th. Snowfall became moderate to heavy at times during the afternoon, where snowfall rates and lower sun angle helped snow accumulate. Snowfall totals ranged from 6 to 10 inches.