NOUS41 KWBC 171145



Service Change Notice 17-32

National Weather Service Headquarters Silver Spring, MD

745 AM EDT Fri Mar 17 2017


TO:       Subscribers:

         -NOAA Weather Wire Service

         -Emergency Managers Weather Information Network


         Other NWS partners and NWS employees


FROM:    Mary Mullusky

         Chief, Water Resources Services Branch


SUBJECT: Change to Available Formats of Precipitation Products on the

         Advanced Hydrologic Prediction Service's (AHPS) Precipitation

         Download Webpage Effective on or after May 30, 2017


Effective on or after May 30, 2017, observed, normal, departure from

normal, and percent of normal precipitation products on the AHPS

precipitation download webpage at:


will be available in the following formats:

  - GeoTIFF

  - Climate and Forecast (CF)-Network Common Data Form (netCDF).


Precipitation products will no longer be available in the following


  - netCDF not adhering to the netCDF CF metadata convention

  - shapefile.


Examples of precipitation products in GeoTIFF and CF-netCDF formats

are online at:


Partners and users of AHPS precipitation products should modify their

systems to accommodate the new file formats. Switching to the new file

formats will reduce file size and enable precipitation products to be

available sooner.


For more information, please contact:


Daniel Roman

AFS/Water Resources Services Branch

Silver Spring, MD  20910




National Service Change Notices are online at: