Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. 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.