College Park, MD
A subset of WPC's product suite is now provided in a GIS (Geographic Information System) Shapefile format. Products are available for download via the NCEP anonymous FTP server at ftp.hpc.ncep.noaa.gov/shapefiles.
If clicking on the above link does not work, then access can be gained by:
The .tar files in each subdirectory contain the required three files (.dbf, .shp, .shx) to import and display using most GIS software packages. Additionally, a fourth file (.prj) is included and provides map projection information in order to align correctly with other geodata files.
For fop products, the file naming convention is fop_yyyymmdd.tar, where:
Example: The file meanhi_20070606f120.tar is the Day 5 Daily Mean Heat Index forecast issued on June 6, 2007 and valid June 11, 2007.For qpf, the file naming convention is ppp_yyyymmddcc.tar, where:
In the day1 subdirectory, the file 93e_2006071100.tar is the second period 6-hour QPF from the July 11th, 2006 00Z cycle (the 6-hour period covering 06-12Z on July 11th).
The file 94q_2006071100.tar is the Day 1 24-hour QPF from the July 11th, 2006 00Z cycle (00Z July 11th through 00Z July 12th).
View information about WPC's QPF products, including a more detailed description of valid time periods and file naming conventions.
For winter weather products (in the ww subdirectory), the files are named as follows:
dayx_psnow_gt_nn_yyyymmddcc.tar for snow products. dayx_picez_gt_nn_yyyymmddcc.tar for freezing rain products.
Note: Separate directories exist for each of the forecast days (day1, day2 and day3).