On Christmas Day a strong low pressure system tracked up the spine of the Appalachians  and to the west of New Hampshire, resulting in 1 to 2 of rain across the region will locally up to 4 in the favorable upslope areas of the White Mountains.  Melting snow and partially frozen ground led to excessive runoff and resulted in minor river flooding across the region.

Flood in GRAFTON, NEW HAMPSHIRE
From 25-DEC-20 14:20:00 to 25-DEC-20 16:00:00 (EST-5)
Location: BETHLEHEM JCT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 3 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Ammonoosuc River crested at minor flood stage on December 25th at 8 ft. The minor flood stage is 8 ft in Bethlehem. No damage was reported.

Flood in GRAFTON, NEW HAMPSHIRE
From 25-DEC-20 11:05:00 to 25-DEC-20 23:10:00 (EST-5)
Location: NORTH WOODSTOCK
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 3 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Pemmigewasset River crested at minor flood stage on December 25th at 10.3 ft. The minor flood stage is 9 ft in Woodstook. No significant impacts were reported with minor lowland flooding.

Flood in MERRIMACK, NEW HAMPSHIRE
From 25-DEC-20 19:09:00 to 26-DEC-20 03:20:00 (EST-5)
Location: NORTH CHICHESTER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 2.5 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Suncook River crested at minor flood stage on December 26th at 8.5 ft. The minor flood stage is 7 ft in N. Chichester. No significant impacts were reported with minor lowland flooding.

Flood in MERRIMACK, NEW HAMPSHIRE
From 26-DEC-20 07:15:00 to 26-DEC-20 08:30:00 (EST-5)
Location: DAVISVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 3 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Warner River crested at minor flood stage on December 26th at 8 ft. The minor flood stage is 8 ft in Davisville. No significant impacts were reported with minor lowland flooding.

Flood in CARROLL, NEW HAMPSHIRE
From 25-DEC-20 13:28:00 to 26-DEC-20 08:43:00 (EST-5)
Location: NORTH CONWAY
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 3 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Saco River crested at minor flood stage on December 26th at 11 ft. The minor flood stage is 9 ft in Conway. No significant impacts were reported with minor lowland flooding.

Flood in GRAFTON, NEW HAMPSHIRE
From 25-DEC-20 18:04:00 to 26-DEC-20 11:32:00 (EST-5)
Location: RIVERSIDE ARPT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Strong low pressure moved north up the spine of the Appalachians and to the west of New Hampshire resulting in 2 to 3 inches of rain on partially frozen ground. Warm temperatures brought snowmelt which led to additional runoff.  The Pemmigewasset River crested at minor flood stage on December 26th at 15.4 ft. The minor flood stage is 15 ft in Plymouth. No significant impacts were reported with minor lowland flooding.