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National Weather Service radar forecast update of possible heavy snow over Northern New England.

Possible heavy rain over parts of the Northwest Coast. A hard freeze is expected over the area of in Morristown, TN. according to National Weather Service radar image in short range forecast. The freeze will damage vegetation that has already produced blossoms as well as put fruit crops at risk.

Very cold temperatures will extend from the central Plains to the southeast. Meanwhile, a moist flow off the Pacific will bring heavy rainfall and continue the threat of rain-on-snow flooding for the Pacific and Interior Northwest.

The temperature will be 10 to 25 degrees below average over most of the eastern third of the country, according to National Weather Service latest update.

Deep low pressure along New England Coast will slowly move northeastward into the Canadian Maritimes by Thursday morning. The storm will produce snow from the Lower Great Lakes/Central Appalachians eastward to the Northern Mid Atlantic Coast. And the Northeast Coast with heavy snow over parts of Northern New England into Upstate New York.

The heavy snow will slowly tapper off by Wednesday morning over Upstate New York and Northern New England. Light scatted snow will continue over parts of Northern New England into parts of Northern Mid-Atlantic on Wednesday afternoon. It will slowly retreat to parts of the Northern New England by Thursday morning.

On Wednesday morning, upper-level energy rotating around the associated upper-level low, over the Northeast, will aid in producing light snow over parts of the Northern Mid-Atlantic Coast Wednesday afternoon into late Wednesday night. Additionally, cold air rotating around the storm will aid in producing lake effect snow south of Lakes Michigan through Wednesday afternoon.

Heavy Rain for the Pacific and Interior Northwest

Meanwhile, a front just off the Northwest Coast will move inland to the Northern High Plains to Northern California by Thursday. A plume of moisture associated with the boundary will stream into the Pacific Northwest that will slowly move southward to Northern/Central California Wednesday night into Thursday. The system will produce rain as far inland as the Northern Intermountain Region/Northern Rockies through Wednesday morning into Wednesday afternoon.

The National Weather Service radar update also shows, on Wednesday morning, the storm’s associated upper-level trough will begin to move onshore over the
Northwest. The snow levels will start to lower on Wednesday evening into Thursday as snow begins to develop over the Northern Cascades and the Northern Rockies. Furthermore, rain will begin to move into parts of Northern California on Wednesday morning.

National Weather Service radar forecast and winter advisory over Blacksburg VA. 1130 PM EDT Tue Mar 14 2017. Wintry conditions will persist at the higher elevations west of the Blue Ridge. Northwest winds will be increasing and stay gusty through the overnight. With colder air moving in, anticipate upslope snow showers west of the Blue Ridge, especially at the higher elevations, into Wednesday. Wind chill values will also become dangerously low in the mountains by early Wednesday morning.

National Weather Service issues winter storm safety tips and resources

Winter storms can bring snow, sleet, and freezing rain across the entire United States and its territories. Even Hawaii gets snow in its Big Island, and major cities as far south as Atlanta and Dallas have been paralyzed by snow and ice. Blizzards occur when strong wind causes blowing snow and whiteout conditions, making roads impassable. Thousands of people are injured or killed every year in traffic accidents related to slippery roads from winter storms.

The National Weather Service (NWS) performs its primary task through a collection of national and regional centers, and 122 local weather forecast offices (WFOs). Image Source/ National Weather Service Radar image NOAA