A record-shattering snowfall is expected to continue through the day Sunday.

As of about noon, the National Weather Service measured 7.6 inches at its office in Moon.

The previous record, 5.2 inches, set in 2014 was broken by 9:30 a.m. when 5.3 inches was measured there.

A total of 9 to 12 inches of snow is still expected, with more than that in spots. The bulk of the snow is expected to end by midnight, with snow showers into Monday adding not much more than another half inch.

“Roads are treacherous. You can’t see the lines on the road,” lead meteorologist Shannon Hefferan said. “Everybody stay home.”

A winter storm warning is in effect until 1 p.m. Monday. The heaviest snow is expected through 10 p.m. Sunday, with snow falling at an inch per hour, Hefferan said.

Some intense snow bands passed through early Sunday morning, dropping snow at rates of 2 to 3 inches per hour and reducing visibility in those areas to less than a quarter mile, she said.

The snow was dry in the morning, but could mix with wetter snow as warmer air moves into the area, Hefferan said. That could raise the risk of power outages.

Looking ahead to early in the week, extreme cold is expected Monday night into early Tuesday, with windchills of -10 to -15 degrees, and as low as -20 in the ridges, Hefferan said. An extreme cold watch will be in effect from 7 p.m. Monday to 1 p.m. Tuesday.

As of 1:30 p.m. Sunday, Duquesne Light was not reporting any customers without power in the Pittsburgh area.

West Penn Power was reporting just over 1,000 customers out in Fayette County where, according to the weather service, snow was mixing with sleet and freezing rain. Earlier outages in Westmoreland County were restored, and the count in Fayette was down from close to 1,700 earlier in the day.

Emergency dispatchers in Allegheny, Armstrong and Westmoreland counties were not reporting any major incidents as of mid-morning Sunday.

Travel is expected to be hazardous through the evening, Hefferan said. Authorities were advising residents to avoid going out unless absolutely necessary so emergency responders and public works crews can work on getting roads safe.

“Another important reason to stay off the roads is to help limit vehicle accidents that require first responders and utility crews to also be out on the roads and avoid poles being impacted, potentially causing power outages when electricity is most needed,” a statement from Allegheny County Emergency Services said.

About a dozen Allegheny County municipalities declared states of emergency ahead of the storm. That gives them more buying and emergency options, if needed.

Allegheny County says its public works department deployed 26 salt trucks with plows around midnight. However, drivers should not expect to see bare roads while snow is falling.

“We will continue operations until the storm ends and all 357 miles of county-maintained roads are clear and wet,” the county said.

PennDOT has temporarily reduced speed limits to 45 mph on several area roadways in the region, including interstates 79, 279, 376 and 579; and routes 28 and 65. Tier 4 restrictions are in place on the interstates and Route 28, meaning no commercial vehicles are allowed on those roads.

Pittsburgh Regional Transit says all service was delayed by up to an hour because of road conditions. Several are unable to be served.

All ACCESS paratransit service is canceled Sunday, PRT said. Those riders are advised to expect delays Monday morning.

Information on road conditions is available online at 511pa.com.

Pittsburgh is providing updates on its snow response online at pittsburghpa.gov.

Many flights into and out of Pittsburgh International Airport were cancelled or delayed. Travelers are advised to check directly with their airline for the most current information on delays or cancellations.

A list of closings and delays is available from TribLive news partner WTAE.

Giant Eagle will close all corporate Giant Eagle and Market District locations at 4 p.m. Sunday. The company said it intends to reopen stores for normal business hours on Monday.

In Allegheny County, all divisions of the Court of Common Pleas, all magisterial district courts and Pittsburgh Municipal Court are closed Monday. Arraignment court will remain open.

In Westmoreland County, the courthouse in Greensburg will operate on a two-hour delay Monday, commissioners announced. County operations and court proceedings will start at 10:30 a.m. Two public meetings scheduled on Monday will be pushed back to afternoon starts. The county’s retirement board will now meet at 1 p.m., and the January monthly prison board meeting will begin at 2:30 p.m.