A nor’easter brought heavy, wet snow to the Granite State Wednesday night, and the storm is expected to continue overnight, making for a messy morning commute. Almost every flight in and out of Manchester-Boston Regional Airport on Wednesday night was canceled, and most flights early Thursday morning have also been canceled. Many airlines are waiving fees to change those flights.>> Download the free WMUR appThe storm made a mess of roads Wednesday night; a number of crashes were reported across the state. A UPS truck slid off the southbound side of the Everett Turnpike near the Bedford tolls.>> Raw video: UPS truck off Everett TurnpikeThe state is closely monitoring road conditions from the Emergency Operations Center in Concord. The New Hampshire Department of Transportation has 300 live cameras throughout the state and works with New Hampshire State Police and can see real-time trouble and respond.>> Heavy, wet snow falls across NH; 8-14 inches expected for someSpeed limits on New Hampshire interstates were reduced to 45 mph, and officials urged people to stay home during the height of the storm. Fortunately, the worst of this storm is falling when people are at home, which helps keep cars off the roads, officials said. NHDOT also posted messages on highways signs. The snow really picked up after 8 p.m., a challenge for the convoys of plows making rounds. The EOC will be staffed throughout the storm, overseeing road conditions, power outages, tides and any other trouble. “We look at road conditions (and) road closures. (We) try to communicate that to the local public and local first responders. We also look at power outages, how big the crisis is,” said Perry Plummer, of New Hampshire Homeland Security and Emergency Management. Emergency officials are asking people to stay off the roads Thursday morning until they have a handle on the extent of cleanup needed to make these interstates safe. A number of schools across the state have already closed for Thursday, and the wet snow is adding to concerns of power outages. As of 12:30 a.m. Thursday, more than 19,000 customers were without power. Eversource reported 11,837 outages, Unitil reported 3,223 outages, Liberty Utilities reported 3,112 outages and New Hampshire Electric Co-op reported 908 outages.Most of the outages were in southeastern New Hampshire.Around 10 p.m., a tree came crashing down on Matthew Drive in Salem, landing on power lines and knocking out electricity to nearly 400 homes in the area. News 9’s Mike Cronin said a Liberty Utilities crew was working to fix the problem. Utility companies are warning that power problems could become even more widespread overnight. So far, southern New Hampshire has seen the most snow. News 9’s Jess Moran was in Nashua, where most neighborhoods were quiet as people waited out the weather before cleaning up. Snowplows were everywhere, working to clear main roads and parking lots, along with some workers clearing some sidewalks. Those that chose to drive quickly realized how bad conditions were, while others working to clear the snow didn’t seem to mind. “The drive was horrible. Don't go out of the house stay home. Be safe,” said Karen Deoleo. “Oh, it’s slippery. We couldn’t drive. We also were getting stuck. It’s pretty bad. I needed groceries, so I needed to go now before it gets worse.” “It’s going to be (a) long (night). Going to be out until the end of it. It started at 4:30 and (will) probably wrap up 1 or 2 (Thursday) afternoon by the time all the cleanup's done,” said Bryan Massey, of Babin Landscaping. Meanwhile, people on the Seacoast are still dealing with the effects of last week’s nor’easter. Last week’s storm caused widespread flooding along the coast. Tides will not be as high as they were during the earlier storm, but officials warned that with 15-foot waves expected, flooding is still expected to be a problem. As of 11 p.m. Wednesday, the area was mostly dealing with rain and wind. News 9’s Siobhan Lopez said the drive from Manchester to the Seacoast on Route 101 went from snow-covered roads to just wet pavement, and strong wind gusts were whipping sand off the beach and onto the road. Seawalls have been rebuilt from the weekend storm, but officials said road closures are still expected along the coast. Excavators have been parked at Rye Harbor State Park in case they're needed to clear debris once the storm passes. Flooding is expected in areas along coastal Route 1A, and officials said the snow could make it last longer. Firefighters said there were no major issues with the high tide Wednesday afternoon. "This will be more reminiscent, I imagine, to the blizzard we had on Jan. 4, where we'll have snow and plowed snow covering over the drains," Hampton Fire Chief Jameson Ayotte said. High tide will be at 3:45 a.m., and officials said that will be the worst time for flooding. Officials said that anyone who lives along the coast who plans to commute should expect detours and reminded the public to avoid driving through standing water. Snow was possible for much of the day across the state, but the heaviest snow didn't start until about 5 p.m. Heavy snowfall was moving from south to north, with snow not expected in the Seacoast area until later in the evening. “Fortunately, we got just rain. No snow, so storm drains are open, everything is clear. They're not cluttered, so we're hoping there isn't any huge flooding, but that's always a possibility with a coastal storm,” Hampton Fire Capt. David Mattson said. Most of the state is expecting 8-14 inches of snow, with lower amounts expected at the coast, largely depending on how much rain mixes in. Heavier snow began falling Wednesday in time for the evening commute as a nor'easter that's expected to bring a foot or more of snow to much of the state strengthened.