The NWS is accepting comments until September 15, 2017,
on the proposed transition of the legacy Emergency Managers Weather Information
Network (EMWIN) File Transfer Protocol (FTP) service to the NWS Integrated
Dissemination Program (IDP) enterprise environment.
The EMWIN FTP file service is transitioning to a new
consolidated enterprise infrastructure referred to as IDP. The new EMWIN IDP FTP service is scheduled to
be operational on November 1, 2017. Users of the EMIWN legacy FTP service are
encouraged to transition to the new service prior to January 31, 2018, the
scheduled date for deactivating the legacy FTP server.
The new EMWIN IDP FTP service provides the following improvements:
-Eliminates the need for users to register for and use
assigned user name and passwords to access the EMWIN archive files. The new EMWIN IDP FTP service is hosted on an
anonymous FTP server, providing open public access 24x7, over the public
Internet.
-Increases the FTP service operational availability by
employing a backup IDP anonymous FTP service that becomes operational in the
event of a catastrophic failure of the primary IDP anonymous FTP service.
Two separate and unique sets of EMWIN archive files will
be presented on the EMWIN IDP FTP service: one for the older generation GOES-15
satellite (GOES-West) and one for the newer generation GOES-16 satellite
(GOES-East). The unique characteristics of their individual satellite broadcast
services require separate archives as a result of:
-Different file naming conventions used for the WMO
product files appearing on the GOES-West and GOES-East broadcasts. Products on GOES-West retain the legacy EMWIN eight
character file name, while the GOES-East will implement the 63 to 66 character
WMO compliant file name convention. Additional information on the GOES-East file
naming convention is available for review here:
-The maximum data rate on the GOES-West and GOES-East
satellite broadcast services will be 19.2 kbps and 256 kbps, respectively. The higher data rate may periodically deliver a greater
number of products in a given time interval, potentially increasing the archive
file product count for comparable periods of time.
The NWS EMWIN IDP FTP archive file names and descriptions
are:
*** TEXT PRODUCTS ***
txtmin02.zip ....... two minute filetxtmin06.zip ....... six minute file
txtmin20.zip ....... twenty minute file
txthrs01.zip ....... one hour file
txthrs03.zip ....... three hour file
*** BINARY FILES (IMAGES) ***
imgmin15.zip ....... fifteen minute file
imghrs01.zip
....... one hour file
imghrs03.zip ....... three hour file
Additional information on the new IDP anonymous FTP
service and files is found in the Enterprise EMWIN FTP Service Description
document available here:
A Service Change Notice (SCN) will be sent before
transitioning operations to the new EMWIN IDP FTP service.
Questions or comments about this service should be
emailed to:
National Public Information Statements are online at:
