Category 1 can refer to: * Category 1 cable, an electrical standard for communications wiring * Category 1 tropical cyclone, on any of the

Tropical cyclone scales Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basins they are located in. Only a few scales of classifications are used officially by the met ...

* Cat11egory 1 pandemic, on the Pandemic Severity Index, an American influenza pandemic with a case-fatality ratio of less than 0.1% * Category 1 winter storm, on the

Northeast Snowfall Impact Scale The Northeast Snowfall Impact Scale (NESIS) was created to measure snowstorms in the U.S. Northeast in much the same way the Saffir-Simpson Hurricane Scale records hurricane intensity and the Enhanced Fujita Scale with tornadoes. The Scale NES ...

and the

Regional Snowfall Index 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 ...

** Any of several winter storms listed at

list of Northeast Snowfall Impact Scale winter storms The Northeast Snowfall Impact Scale (NESIS) is a scale used to categorize winter storms in the Northeast United States. The scale was developed by meteorologists Paul Kocin and Louis Uccellini, and ranks snowstorms from Category 1 ("notable") to C ...

* Category 01 non-silicate mineral - native element minerals

See also