Update, 2:30 p.m. - A small number of power outages have resulted from the storm. Eversource reports about 266 customers without electricity, as of 2 p.m.
1 p.m. -- Snow continues to fall in much of the state, though the storm has turned to sleet and rain in the south-eastern part of New Hampshire. The weather has resulted in numerous school closings and delays - as well as accidents.
At noon, the National Weather Service reports that greater Concord may get half a foot of snow, with some sleet early eve turning to all snow after 7 tonight, before winding down.
State Police and New Hampshire Department of Transportation reported numerous crashes by mid-day. Around noon, a crash on the F.E. Everett Turnpike in Nashua briefly closed northbound lanes at Exit 5, according to DOT. Other accidents were reported at Exit 4 and along that stretch of the turnpike. They were cleared shortly after 1 p.m.
As of 11 a.m., there were a few delays and cancellations at Manchester Boston Regional Airport, but it's unclear if it was related to snowfall. In its winter weather advisory, the airport recommends travelers contact their airline for flight status.
State plow crews continue to be out treating and clearing roadways. The speed limit on Interstate 89, from Warner to the Vermont line, was lowered to 45 mph. Bill Boynton, spokesman for New Hampshire Department of Transportation, urged motorists to slow down.
"People need to expect roads to be slippery today, and slow down, and allow extra time," Boynton tells NHPR's Morning Edition. "At the moment we've got difficult driving conditions in sections of Grafton and Upper Merrimack counties, as well as Sullivan County, and that's expected to continue as the snow increases in intensity."
Chris Legro, a meteorologist with the National Weather Service, reports that northern New Hampshire will see upward of 9-inches of snow. He says 2-4 inches of snow is expected at the coast and in southern New Hampshire, before it turns to a snow and mostly rain mix.
"We are expecting that snow to continue through most of the day, except for far southern and southeast portions of the state where some rain may mix in, early afternoon," Legro says.
School closings include Bow, Claremont, Concord, Dunbarton, Dover, Durham, Franklin, Lebanon, Hanover, Kearsarge Regional, Kingswood Regional, Laconia, Plymouth, and the Oyster River schools, Governor Wentworth and Middleton schools.
Some schools have delays, such as Sanborn Regional, with a two-hour delay.
The seacoast region is expected to get less than an inch of snow, with mostly rain in the afternoon, according to the National Weather Service.
The forecast calls for more than a half of a foot of snow in northern New Hampshire. The southern tier is now under a winter weather advisory, with the exception of the coastal communities. The latest forecast for greater Concord calls for 3- to 7- inches of snow, and likely rain late afternoon to evening.
Winter Storm Warning Issued
Monday update, 8:30 p.m. - There is a winter storm warning for central and northern New Hampshire on Tuesday.
The National Weather Service issued a winter weather advisory for much of the southern tier.
Some projected snow totals include:
Berlin: 6-12 inches, Laconia, 3-7 inches, Lebanon, 4-6 inches, North Conway, 6-11 inches, and Plymouth, 4--9 inches.
The forecast for points farther south calls for snow before noon, with a mix of snow and rain in the afternoon. Accumulation projections include 2-4 inches for Concord, Keene, and Manchester, and 1-3 inches for Nashua.
Rockingham County and the coast will see snow in the morning, with a change to rain, and high temperatures in the mid-40s in the afternoon, according to the Weather Service.
An earlier report follows here:
The National Weather Service has issued a Winter Storm Watch, with significant storm conditions expected to roll in to southern and central New Hampshire early Tuesday morning.
The heaviest snowfall is expected in those regions during the daytime, with an afternoon transition to sleet and freezing rain, and rain in coastal areas.
Bookmark this page for continuing weather updates as we track storm forecasts and conditions.