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Storms pre-2005 use the Kocin/Uccellini rating and description. Storms 2005 and onward use the NCDC rating and description. NOAA's National Centers for Environmental Information publishes a list of storms with ratings and other information, starting with the March 1956 storm.
By using an example of the area from Washington D.C. to Boston, a notable, or category 1, snowfall would drop 4–10 inches of snow. A category 2 would affect same area but more people with more than 10 inches of snow on Mid-Atlantic seaboard. A category 3 would bring about 10–20 inches of snow and affect millions of people in the process.
The regional snowfall index (RSI) is a system used by NOAA to assess the societal impact of winter storms in the United States. The system is a replacement for the Northeast snowfall impact scale (NESIS) system. Since its initiation, the NCDC has retroactively assigned RSI values to over 500 historical storms since 1900.
A deadly winter storm that swept across much of the nation at the end of last week is now impacting the mid-Atlantic, where cities like Washington, Baltimore and Richmond, Virginia, brace for ...
Here are the latest maps to track the storm: Original article source: Winter storm live tracker: Snowfall maps, current alerts, weather warnings, ice forecasts, power outages Show comments
Snow forecast map. 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 ...
The regional snowfall index (RSI) is a scale used by NOAA to assess the societal impact of winter storms in the eastern two-thirds of the United States and classify them into one of six categories. The system was first implemented in 2014, and is a replacement for the Northeast Snowfall Impact Scale (NESIS) system which the National Climatic ...
Winter storm weather is forecast to bring snow to different parts of the country in the days around Thanksgiving 2024, potentially interrupting travel. Thanksgiving weather forecast maps show ...