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"A winter storm will bring heavy snow and ice to the Ohio Valley into the Mid-Atlantic through Wednesday," the National Weather Service said. "Significant ice is forecast for the Central Appalachians.
The National Weather Service defines a white Christmas as having one inch of snow on the ground on the morning of Dec. 25. It need not snow on Christmas Day. It need not snow on Christmas Day.
As the first of three winter storms moves across the U.S. on Tuesday, heavy snow is forecast for the mid-Atlantic, including Washington and Baltimore, while ice storms are a concern for the ...
In the Southern United States, where severe winter weather is much less common and any snow is a more significant event, warning criteria are lower, as low as one inch (2.5 cm) in the southernmost areas: as one goes from north to south, the accumulation estimates needed to meet warning criteria lessen. A warning can also be issued during high ...
Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area, for issuing local public, marine, aviation, fire, and hydrology forecasts.
A winter weather advisory (originally identified as a Traveler's Advisory until the 2002-03 climatological winter when officially renamed, and informally as such by some local television stations thereafter) is a hazardous weather statement issued by local Weather Forecast Offices (WFO) of the National Weather Service in the United States when one or more types of winter precipitation—snow ...
The map below shows the probability that an area could receive more than 4 inches of snow. Use the slider at the top left to toggle by day. Winter weather forecast map: See full version
Local Weather Forecast Offices (WFO) of the National Weather Service may issue a Special Weather Statement to alert of a specified hazard that is approaching or below warning or advisory criteria, that does not have a specific alert product code of their own (such as for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong ...