Most of the area's school and government officials were waiting yesterday to see how much of Friday's snowfall would melt in the sun or be scraped away by snowplows before they announced whether they will open their doors on Monday.

Grocery store chains, although slightly hampered by delayed delivery trucks during the storm, were back in almost full operation yesterday.

Most major retailers in the area will be open today, a spokesman for the Greater Washington Board of Trade said last night. Woodward and Lothrop's and Hecht's stores will have special extended Sunday hours, from 11 a.m. to 7 p.m.

But snowy conditions led to many cancellations, including a Minnesota Symphony Orchestra concert scheduled at the Kennedy Center last night. The musicians could not get a flight into town.

Government and school officials in the Virginia and Maryland suburbs unanimously said that they would wait until late this afternoon before making official announcements of whether they would resume full or limited operations Monday morning.

"What we do on Monday depends on how many of the streets have been plowed and how much of the snow melts," said Norman Chipps, chief of the Prince George's County Office of Emergency Preparedness.

Robert Wilson, Montgomery County's chief administrative officer, said that the county's 100 snow removal crews had been working around the clock to clear the streets and that he expects county offices to open on time on Monday.

District of Columbia school superintendent Floretta D. McKenzie said that she would wait until late Sunday before issuing her final word on D.C. school operations.

In Fairfax County, Bill Shable, assistant school superintendent for general services, said that if roads are clear by late Sunday the county's schools will open, although possibly two hours late.

Arlington officials had not made a final decision, but said that they saw no reason why government offices and schools should not be able to open on time Monday.

Barry Scher, a spokesman for Giant Food, said that all Giant stores had stayed open during the snowstorm and will maintain regular hours today and Monday. Although Safeway stores had closed early because of the heavy snow, officials said they have resumed normal hours. Several delivery trucks for both chains were delayed Friday by stalled cars, officials said.