More than 20 million people in the United States are under storm surveillance.

(CNN) – More than 20 million people are on winter storm warning this Monday, while strong System Goes into the eastern United States. The consultations cover the area from Georgia to New England.

The federal government in Washington closed Monday and weather-related disruptions are being felt across the country. Several schools canceled classes and the New York City Department of Emergency Management issued travel advice Monday morning.

Snowfall of 10 to 20 centimeters is possible in the southern Appalachians, and snow accumulation of 7 to 15 centimeters can be seen in the Mid-Atlantic regions until Monday. In addition, there are winter weather warnings for the interior of New England.

Meanwhile, severe storms and flooding are forecast in one part of the southeast, where coastal flooding is likely to cause problems along with high tides, and weather forecasts and suggestions are expected along the Gulf Coast and Atlantic coast from Texas to Maine, as well. Pacific Northwest.

Winter weather, with the effects of Govt-19, has also caused headaches for air travel. According to FlightAware tracking service, more than 2,700 flights were canceled in the United States on Sunday, and more than 1,600 were canceled by Monday.

Northeast

New York City began spreading salt on the streets Sunday night, with Mayor Eric Adams saying there will be 2.5 to 7 inches of snow in the morning.

Christina Farrell, New York City’s first deputy commissioner, said the temperature dropped significantly overnight, which could create ice.

For travelers, Adams said, “go slow,” and “do not rush.” “We are ready to face the storm,” Adams said.

In New Jersey, Governor Bill Murphy declared a state of emergency in five districts in preparation for the storm, which is expected to bring heavy snowfall, wind speeds and coastal flooding in southern parts of the state.

The forecast, which is 10 to 20 centimeters south, “gives us little concern, so we will not take it lightly and want to make sure everyone is ready,” said the New Jersey State Police Colonel. Pat Callahan said.

Mid-Atlantic and Southeast

A winter storm warning has been issued in Washington until the afternoon. Heavy and wet snowfall of 7 to 17 cm is expected and winds of up to 56 kmph are expected.

Dangerous travel conditions are expected for morning and evening trips, and schools in Washington and Baltimore are closed.

Some parts of North Carolina may experience severe storms, heavy rains, heavy snowfall, gusts of wind, and coastal flooding. Governor Roy Cooper urged residents to be vigilant about local weather forecasts and to be prepared for expected conditions in the area.

“It’s important to be constantly aware of changing weather and have a way of getting weather warnings,” Cooper said. “A little preparation before the impact of severe or winter weather can then help avoid difficulties and emergencies.”

Meanwhile, parts of Alabama, Georgia, South Carolina and Tennessee received winter storm warnings overnight, many of which lasted until the afternoon. Snowfall of up to 12 cm is expected at high altitudes.

According to the National Weather Service, “although the land is relatively warm due to the recent extreme temperatures, snow will fall at a higher rate and accumulate even on the roads.”

Snow is expected to fall from the west on Monday. Slippery roads and black snow levels may last until Tuesday morning or be rebuilt.

According to the Meteorological Service, parts of western Kentucky have been affected by flooding as streams continue to rise due to heavy rainfall.

“It takes several hours to drain all the water coming from these storms through local drainage systems in urban areas,” the advice says. 5 to 11 cm of rain fell.

On Saturday, Kentucky Governor Andy Bessier declared a state of emergency across the state due to heavy rain, thunderstorms, hurricanes and high winds.

Northwest

In the Pacific Northwest, a new system will bring more snowfall and travel risks until Monday.

“The slow-moving cold will create 1-2 feet of snow for the northern layers and the Olympic Mountains on Sunday, and then focus on the southern layers on Monday, where it may be 2-4 feet,” the Meteorological Service said.

The system will bring heavy rainfall to coastal and valley areas, where isolated areas are at risk of flash flooding. Extreme levels of flood danger were announced in the area.

“These strong winds will cause more snow to fall from the dry powdery snow currently on the ground, which will cause significant reductions in visibility … especially in mountainous areas and open terrain,” the Meteorological Service warned.

This reduced visibility will undoubtedly lead to dangerous trips around the region to start the week.

Midwest

The weather in the Midwest is relatively mild, but the temperature is extremely cold.

The forecast calls for gradual warming and the possibility of snowfall before temperatures drop again in the middle of the week.

CNN’s Haley Brink and Alison Cinsor contributed to the report.