A developing nor'easter coastal storm dumped up to two feet of snow across Massachusetts in a 24 hour period.  Strong winds combined with the heavy snow along the coast producing numerous downed trees and wires, resulting in 100,000 homes without power statewide, though most were in southeastern Massachusetts.  Logan International Airport closed for several hours during the storm.
This was the second major storm of an above average winter of snowfall.  The first occurred December 26 and 27, with several other relatively minor snowfalls in the month of January, and a third major storm February 1 and 2.  With only a brief thaw in between the December storm and the January storm, snow piled up across southern New England resulting in numerous roof collapses, towns seeking permission to dump excess snow in area rivers and bays, and numerous disruptions to transportation.  Federal assistance was sought by Governor Patrick for costs associated with the January 12 winter storm and its cleanup.  It was granted by President Obama for Hampshire, Essex, Middlesex, Norfolk, and Suffolk counties.

Heavy Snow in SOUTHERN PLYMOUTH, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Eight to nine inches of snow fell across southern Plymouth County.

Heavy Snow in NORTHWEST MIDDLESEX COUNTY, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 13-JAN-11 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Twelve to fifteen inches of snow fell across northwest Middlesex County.

Winter Storm in EASTERN ESSEX, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 13-JAN-11 00:00:00 (EST-5)
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Eleven to twenty inches of snow fell across coastal Essex County.  In addition, an amateur radio operator recorded a 50 mph wind gust on their home weather station.  This combined with the heavy snow resulted in trees, power poles, and wires downed in Marblehead, Lynn, and Peabody.

Winter Storm in SOUTHEAST MIDDLESEX, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Twelve to twenty-four inches of snow fell across southeast Middlesex County.  Strong winds combined with the snow resulting in numerous trees and wires downed in Cambridge, Melrose, Medford, and Malden.

Winter Storm in SUFFOLK, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Fourteen to nineteen inches of snow fell across Suffolk County.  Strong winds combined with the heavy snow resulting in numerous trees and limbs downed in Boston and Chelsea.

Winter Storm in EASTERN PLYMOUTH, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 12-JAN-11 23:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Six to eight inches of snow fell across eastern Plymouth County.  In addition, an amateur radio operator recorded a 64 mph wind gust on their home weather station in Scituate.  This combined with the heavy snow resulting in numerous trees and wires downed in Scituate, Norwell, and Hingham.

Winter Storm in SOUTHERN BRISTOL, MASSACHUSETTS
From 12-JAN-11 00:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Seven to ten inches of snow fell across southern Bristol County.  In addition, an amateur radio operator recorded a wind gust of 47 mph on their home weather station.  This combined with the heavy snow resulting in trees downed in New Bedford, one of which fell on a house and a car.  Trees and power poles also were downed in Fairhaven.

Winter Storm in SOUTHERN WORCESTER, MASSACHUSETTS
From 11-JAN-11 23:00:00 to 12-JAN-11 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thirteen to twenty-three inches of snow fell across southern Worcester County.  In addition, the Automated Surface Observing System at Worcester Regional Airport (KORH) recorded a 46 mph wind gust.  No damage was reported.

Strong Wind in BARNSTABLE, MASSACHUSETTS
From 12-JAN-11 05:12:00 to 12-JAN-11 15:00:00 (EST-5)
Magnitude: 48.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several amateur radio operators recorded wind gusts from 49 to 57 mph on their home weather stations in Eastham, Barnstable, Harwich, and Chatham.  The operator in Eastham also recorded a sustained wind of 45 mph.  The Automated Surface Observing System at Barnstable Municipal Airport in Hyannis (KHYA) recorded a sustained wind speed of 31 mph.  A tree was downed onto a house in Eastham.

High Wind in NANTUCKET, MASSACHUSETTS
From 12-JAN-11 06:06:00 to 12-JAN-11 11:18:00 (EST-5)
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Automated Surface Observing System at Nantucket Memorial Airport (KACK) recorded sustained wind speeds of 46 mph and gusts to 66 mph.  No damage was reported.

Heavy Snow in NORTHERN WORCESTER, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Eleven to eighteen inches of snow fell across northern Worcester County.

Heavy Snow in WESTERN MIDDLESEX, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 13-JAN-11 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thirteen to twenty-four inches of snow fell across western Middlesex County.

Heavy Snow in WESTERN ESSEX, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 13-JAN-11 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Fourteen to twenty-four inches of snow fell across interior Essex County.

Heavy Snow in WESTERN HAMPSHIRE, MASSACHUSETTS
From 11-JAN-11 23:00:00 to 12-JAN-11 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

About 26 inches of snow fell across western Hampshire County.

Heavy Snow in WESTERN HAMPDEN, MASSACHUSETTS
From 11-JAN-11 23:00:00 to 12-JAN-11 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Seventeen to twenty-two inches of snow fell across western Hampden County.

Heavy Snow in EASTERN HAMPSHIRE, MASSACHUSETTS
From 11-JAN-11 23:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Sixteen to nineteen inches of snow fell across eastern Hampshire County.

Heavy Snow in EASTERN HAMPDEN, MASSACHUSETTS
From 11-JAN-11 23:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thirteen to twenty-two inches of snow fell across eastern Hampden County.

Heavy Snow in WESTERN NORFOLK, MASSACHUSETTS
From 12-JAN-11 00:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Fourteen to twenty inches of snow fell across western Norfolk County.

Heavy Snow in EASTERN NORFOLK, MASSACHUSETTS
From 12-JAN-11 02:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Twelve to seventeen inches of snow fell across eastern Norfolk County.

Heavy Snow in NORTHERN BRISTOL, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Ten to sixteen inches of snow fell across northern Bristol County.

Heavy Snow in WESTERN PLYMOUTH, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Seven to sixteen inches of snow fell across western Plymouth County.

Heavy Snow in WESTERN FRANKLIN, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Eleven to nineteen inches of snow fell across western Franklin County.

Heavy Snow in EASTERN FRANKLIN, MASSACHUSETTS
From 12-JAN-11 01:00:00 to 12-JAN-11 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Eleven to seventeen inches of snow fell across eastern Franklin County.