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Effective 2018/06/08

NOUS41 KWBC 081437 AAA
PNSWSH

Service Change Notice 17-120 Updated
National Weather Service Headquarters Silver Spring, MD
1037 AM EDT Fri Jun 8 2018

To: Subscribers:

-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees

From: Craig Hodan Chief, NWS Dissemination Systems Team

Subject: Updated: GOES-14 Emergency Managers Weather Information
Network Broadcast Available on or before December 11, 2017

Updated to change the duration of the GOES-14 EMWIN Broadcast
from 6 to 12 months and the GOES-14 EMWIN Broadcast terminate
date from on or about June 13, 2018, to on or about November 15,
2018.

On or before December 11, 2017, the Emergency Managers Weather
Information Network (EMWIN) broadcast from GOES 14 was activated
and will remain active for 12 months. The broadcast from GOES-14
provides GOES-East users an additional opportunity to continue
to use their existing EMWIN satellite receivers and software
while making preparations for transitioning to the new
HRIT/EMWIN broadcast.

Service Change Notice 17-91 of July 28, 2017, provided
information on the transition from GOES-13 to GOES-16:

http://www.nws.noaa.gov/os/notification/scn17-91emwin_goes.htm

GOES-14 is expected to remain in its present geosynchronous
orbit at 105 degrees West throughout this service period.

Below are the GOES-14 EMWIN broadcast characteristics:

Frequency: 1692.7 MHz, linear polarization
Modulation: PCM/NRZ-L/Offset QPSK
Data rate: 35940 ksps, 19200 bps CCSDS coding
Data format: EMWIN Quick Block Transfer (QBT) packets

The GOES-14 EMWIN Broadcast will terminate on or about November
15, 2018. Before the broadcast ends, users should employ the new
HRIT/EMWIN antennas, receivers and software to receive the EMWIN
broadcast on HRIT/EMWIN Virtual Channels 20, 21, and 22, from
the GOES-East satellite located at 75.2 degrees West.

For more information, please contact:
nws.emwin.support@noaa.gov

National Service Change Notices are online at:
http://www.nws.noaa.gov/om/notif.htm

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Effective 2018/04/07

DM04-18.02 EMWIN Service Disruption Commencing 0900 UTC, April 7, 2018
Effective: 2018/04/05 0900Z UTC

NOXX10 KWBC 051618
Data Management Message 04-18.02

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: EMWIN Service Disruption Commencing 0900 UTC,
April 7, 2018

The US National Weather Service (NWS) Headquarters will perform
urgent maintenance on electrical systems supporting the Emergency
Managers Weather Information Network (EMWIN) services commencing
0900 UTC, April 7, 2018.

Expected EMWIN service impacts:

A. FTP server - loss of service.
B. ByteBlaster servers - negligible impact.
C. GOES 14 or 15 EMWIN satellite broadcast - no impact.
D. GOES-16 HRIT-EMWIN satellite broadcast - no impact.

Date/Time of Initial Impact: April 7, 2018 0900 UTC

Date/Time of Expected End: April 9, 2018 1300 UTC

The EMWIN service disruption can be expected to last as long as
52 hours. Full service may be restored sooner. Should users
experience any additional service issues or problems, please
notify the NWS EMWIN Support at:

nws.emwin.support@noaa.gov

A 'Critical Weather Day' will not postpone this maintenance
activity.

Information contained in this bulletin is posted on
http://www.nws.noaa.gov/emwin/index.html#notices
http://www.nws.noaa.gov/iscs/index.html

Further information is available from:
NWS EMWIN Support at nws.emwin.support@noaa.gov

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
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Effective 2018/04/02

NOXX10 KWBC 021030
Data Management Message 04-18.01

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: GOES-14/15 EMWIN Satellite Broadcast Disruption Commencing
1200 UTC, April 3, 2018

The NOAA Wallops Command & Data Acquisition Station (WCDAS), which
provides the EMWIN data uplink service to the GOES-14 and 15
satellites, will undergo a planned 48 to 60 hour facility power
outage commencing 1200 UTC, April 3, 2018.

Date/Time of Initial Impact: April 3, 2018 1200 UTC

** NOTE: The EMWIN satellite broadcast outage may commence any time after April 2, 2018 2045 UTC **

Date/Time of Expected End: April 5, 2018 2359 UTC

Length of Outage: 48 to 60 Hours

The outage is required to perform maintenance and repairs on the
station's electrical power system. The power outage can be
expected to last as long as three days, although the goal is to
complete the work within two days.

It is likely there will be an outage of the 1692.7 MHz Emergency
Managers Weather Information Network (EMWIN) broadcast for the
duration that WCDAS is down for both GOES-14 and 15. If there is
an outage, users are asked to utilize GOES-15's LRIT broadcast,
the NWS FTP or ByteBlaster services for EMWIN continuity of
operations.

If a 'Critical Weather Day' is identified to take place during this
maintenance event, the event will be rescheduled for April 10, 2018.
http://www.nco.ncep.noaa.gov/pmb/cwd/

Information contained in this bulletin is posted on
http://www.nws.noaa.gov/emwin/index.html#notices
http://www.nws.noaa.gov/iscs/index.html

Further information is available from:
ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880
NWS EMWIN Support at nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch College Park
GISC/RTH Washington Sends
NNNN

 

Effective 2018/03/01

NOXX10 KWBC 011830
Data Management Message 03-18.01

To: Emergency Managers Weather Information Network (EMWIN)
Customers

From: GISC/RTH Washington Data Management

Subject: GOES-13/14/15/16 Spring 2018 Solar RFI

NESDIS has provided the following information concerning the
potential for outages of the GOES data stream, including EMWIN.

The potential for solar radio frequency interference (RFI) with a
satellite downlink circuit will occur whenever the Sun passes into
the beam of the ground station receiving antenna. The Wallops and
Fairbanks Command and Data Acquisition Stations (CDAs) and
Environmental Satellite Processing Center (ESPC) receiving antennas
may experience periods of Solar RFI as predicted below. Solar RFI
can cause loss of telemetry lock and command capability.

Solar RFI Predicted Times and Impacts for Spring 2018:

SPACECRAFT //
DATE TIME(UTC) STATION OP-IMPACT
-------------------------------------------------------------
GOES-13 //
02 MAR-09 MAR 1556-1608 WALLOPS T&C
02 MAR-09 MAR 1555-1607 SUITLAND
GOES-14 //
01 MAR-08 MAR 1917-1929 WALLOPS T&C,EMWIN,MDL
01 MAR-08 MAR 1917-1929 SUITLAND
GOES-15 //
02 MAR-09 MAR 2132-2144 WALLOPS SD,GVAR,T&C,EMWIN,LRIT,
02 MAR-09 MAR 2132-2143 SUITLAND WEFAX,DCS,DCPR,SAR,MDL
23 FEB-02 MAR 2106-2117 FAIRBANKS
GOES-16 //
01 MAR-08 MAR 1706-1718 WALLOPS RDL,GRB,T&C,HRIT/EMWIN,
01 MAR-08 MAR 1707-1719 SUITLAND DCPC,SAR
01 MAR-08 MAR 1705-1716 FAIRMONT

Source: http://www.ssd.noaa.gov/PS/SATS/MESS/MSG0591928.01.txt

Questions or comments may be directed to:
nws.emwin.support@noaa.gov

Data Management
NCO Production Management Branch Silver Spring
GISC/RTH Washington Sends
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Effective 2017/12/18

NOXX10 KWBC 091510
DATA MGT MESSAGE 12-17.02 COR

NOXX10/KWBC/181854
DATA MGT MESSAGE 12-17.01

TO EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS.

FROM GISC/RTH WASHINGTON DATA MANAGEMENT

NOTICE TO ALL USERS OF EMWIN DISSEMINATION SERVICES:

Subject: Restricted Use of Products Received in EMWIN Virtual

Channels on the GOES-16 HRIT/EMWIN Broadcast

All products received in EMWIN virtual channels (VCID) 20, 21 and 22,
on the GOES-16 HRIT/EMWIN broadcast should NOT be used for operational
purposes until specifically authorized by the NWS.

The NWS enterprise EMWIN software supporting the broadcast service is
scheduled to commence its 30-day acceptance test in January 2018.
Following successful test completion, the NWS will release an announcement
authorizing the use of all products in EMWIN VCIDs 20, 21 and 22 for
operational purposes.

Valid products are being sent by the enterprise EMWIN software over
the EMWIN virtual channels for pre-operational system verification
checks. Until the software enters the 30-day acceptance test, product
availability in the EMWIN virtual channels may periodically be interrupted.
This is to be expected and not cause for notifying the NWS. When in
receipt of products and product discrepancies are noted, users are
encouraged to notify the NWS of the discrepancies using the following
email address:

nws.emwin.support@noaa.gov

Notification of a product discrepancy should include either:

(a) a copy of the file containing the product with discrepancy, or,

(b) the identity of the product WMO header, AWIPS identifier (if present),
and the source of the product as either the HRIT/EMWIN satellite broadcast or
the EMWIN FTP File Server.

Questions or comments may be addressed to:
nws.emwin.support@noaa.gov

For NOAAPORT and NON-AWIPS Customers - if you have any
questions regarding distribution or would like to add these
products to your data stream please contact Data Management
at ncep.pmb.dm@noaa.gov.

This information is also posted on the NWS Data Management
change notices web page. the url is listed below.

http://www.nws.noaa.gov/datamgmt/notices.shtml

Data Management
NCO Production Management Branch Silver Spring
GISC/RTH Washington Sends
NNNN

 

Effective 2017/11/22

NOUS41 KWBC 221350
PNSWSH

Service Change Notice 17-120
National Weather Service Headquarters Silver Spring, MD
150 PM EST Wed Nov 22 2017

To: Subscribers:
-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees

From: Craig Hodan
Chief, NWS Dissemination Systems Team

Subject: GOES-14 Emergency Managers Weather Information Network
Broadcast Available on or before December 11, 2017

On or before December 11, 2017, the Emergency Managers Weather
Information Network (EMWIN) broadcast from GOES 14 will be
activated and remain active for 6 months. The broadcast from
GOES-14 provides GOES-East users an additional opportunity to
continue to use their existing EMWIN satellite receivers and
software while making preparations for transitioning to the new
HRIT/EMWIN broadcast. The broadcast is scheduled to become
operational between December 14-20, 2017, when GOES-16 replaces
GOES-13 at the GOES-East station at 75.2 degrees West.

Service Change Notice 17-91 of July 28, 2017, provided
information on the transition from GOES-13 to GOES-16:

http://www.nws.noaa.gov/os/notification/scn17-91emwin_goes.htm

GOES-14 is expected to remain in its present geosynchronous
orbit at 105 degrees West throughout this service period.

Below are the GOES-14 EMWIN broadcast characteristics:

Frequency: 1692.7 MHz, linear polarization
Modulation: PCM/NRZ-L/Offset QPSK
Data rate: 35940 ksps, 19200 bps CCSDS coding
Data format: EMWIN Quick Block Transfer (QBT) packets

The GOES-14 EMWIN Broadcast will terminate on or about June 13,
2018. Before the broadcast ends, users should either reorient
their antennas to the GOES-15 (GOES-West) satellite at 135
degrees West to continue receiving the broadcast -- providing
the receiving stations is within the GOES-West satellite
footprint and has antenna direct line-of-sight to the satellite;
or (b) employ the new HRIT/EMWIN antennas, receivers and
software to receive the EMWIN broadcast on HRIT/EMWIN Virtual
Channels 20, 21, and 22, from the GOES-East satellite located at
75.2 degrees West.

The GOES-West satellite, GOES-15, is scheduled to be replaced by
GOES-S in the fall of 2018, introducing the HRIT/EMWIN broadcast
to GOES-West users and terminating the legacy EMWIN Offset QPSK
broadcast.

For more information, please contact:
nws.emwin.support@noaa.gov

National Service Change Notices are online at:
http://www.weather.gov/os/notif.htm

NNNN

Effective 2017/08/01

NOUS41 KWBC 011415
PNSWSH


Public Information Statement 17-28
National Weather Service Headquarters Silver Spring, MD
1020 AM EDT Tue Aug 1 2017


To: Subscribers:

-NOAA Weather Wire Service
-Emergency Managers Weather Information Network
-NOAAPORT
Other NWS partners and NWS employees

From: Craig Hodan

Chief, Dissemination Systems Branch


Subject: Soliciting comments on the proposed transition of the
NWS EMWIN FTP service through September 15, 2017

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:
http://www.nws.noaa.gov/emwin/EMWIN_GOES-R_filename_convention.pdf


-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 file
txtmin06.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:
http://www.nws.noaa.gov/emwin/eEMWIN%20FTP%20Service%20Description%20draft%20v0.2%20-%20r161118-0935.pdf

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:
iscs.dm@noaa.gov

National Public Information Statements are online at:
http://www.weather.gov/os/notif.htm

NNNN

Effective 2017/07/28

NOUS41 KWBC 281800
PNSWSH

Service Change Notice 17-91 National Weather Service Headquarters Silver Spring, MD 200 PM EDT Fri Jul 28 2017

To: Subscribers:

-NOAA Weather Wire Service

-Emergency Managers Weather Information Network

-NOAAPORT

Other NWS partners and NWS employees

From: Michelle Mainelli Acting Director, Office of Dissemination


Subject: EMWIN GOES-East satellite broadcast signal and file format changes effective November 2017


Effective in November 2017, the National Environmental Satellite, Data, and Information Service (NESDIS) Geostationary Operational Environmental Satellite (GOES)-16 will replace the existing operational GOES-13 at the GOES-East geosynchronous orbit location of 75 degrees west longitude. The GOES-East location assignment was announced by NESDIS on May 25, 2017. The specific date and time in November for the replacement has not been announced. An updated Service Change Notice will be sent when the date is determined.


The NWS and NESDIS hosted two public Webinars in April and August 2016 to identify and review the changes to the Emergency Managers Weather Information Network (EMWIN) broadcasts with the introduction of GOES-16. The Webinars also included time to receive and respond to participant questions and
comments regarding these changes. Participants included individual users,emergency managers, third party emergency alert service providers, media outlets and hardware and software manufacturers. The presentations provided at these Webinars are available here:

http://www.nws.noaa.gov/emwin/#documents

The operational deployment of GOES-16 introduces three changes to the GOES-East EMWIN broadcast impacting the reception and decoding of products in the High Rate Information Transmission (HRIT)/EMWIN L-band satellite broadcast data stream, as follows:


-HRIT/EMWIN Receiver: GOES-16 broadcasts the EMWIN and the NESDIS HRIT data streams over a single transponder in a combined HRIT/EMWIN format. EMWIN receive stations will need to be updated with an HRIT/EMWIN receiver and antenna system to receive and decode the EMWIN data stream from the HRIT/EMWIN broadcast.

-Full-File Format: The products on the EMWIN segment of the GOES-16 HRIT/EMWIN broadcast are sent as complete files, in contrast to the Quick Block Transfer (QBT) packet format employed on the GOES-13 EMWIN broadcast. Software updates may be required to properly handle this new full-file format.

-File Name Change: The file name assigned to each of the full-file products on the EMWIN segment of the HRIT/EMWIN broadcast will contain 63 to 66 alpha-numeric characters followed by a period and a three character file extension. The new file name convention is online at:


http://www.nws.noaa.gov/emwin/EMWIN_GOES-R_filename_convention.pdf


The GOES-16 satellite is now in orbit at a service check-out location (89.5 degrees west longitude) until November 2017. The satellite's HRIT/EMWIN transponder is active but may periodically be taken off line to accommodate other spacecraft events. Users are encouraged to install and verify the operations of new or updated HRIT/EMWIN receive equipment and software. The HRIT/EMWIN broadcast should not be used for operations until GOES-16 is declared operational in November 2017.


Questions or comments regarding these changes may be emailed to the NWS EMWIN support staff at: nws.emwin.support@noaa.gov.

National Service Change Notices are online at: http://www.nws.noaa.gov/os/notif.htm

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