Heavy to excessive rainfall may lead to flooding Wednesday over southwest Pennsylvania into northern West Virginia, and western Maryland. Flood Watches have been issued. An extended period of hot weather will continue for parts of coastal southern California including Los Angeles through Thursday. Heat Advisories remain in effect. Read More >
All TOC data and products are stored for FTP access. The directory and file structure follows a common subdirectory and file naming standard. The types of directory trees are described in detail below to help locate specific data and model forecast product types. Review the General Guide before writing computer programs to access the files.