Operational Newsletter

Operational Newsletter

on the World Weather Watch


Contact: wis@wmo.int

New E-PROFILE Automatic Lidars and Ceilometers (ALC) Data Available 

Notification from the Met Office (United Kingdom)

Starting from 24 August 2021, Met Office will exchange E-PROFILE Automatic Lidars and Ceilometers (ALC) data using E-PROFILE BUFR template sequence (agreed on BUFR master table 35) under the header IUXx EUOP (x="A", "D", "N"). This will initially contain attenuated backscatter and associated metadata - with remaining new descriptors set as missing pending further processing updates.

The bulletins table can be found here. If you have any questions, please contact richard.weedon@metoffice.gov.uk.

Published: 18 August 2021

Retirement of Integrated World Weather Watch Monitoring (IWM)

Notification from the WMO Secretariat

The operation of Integrated World Weather Watch Monitoring (IWM) is retired and the WMO Integrated Global Observing System (WIGOS) Data Quality Monitoring System(WDQMS) has been adopted as an operational replacement. 

More information about the decision approved by the Commission for Observation, Infrastructure and Information System First Session (Third Part) (INFCOM-1 (III)) can be found here (decision 5.1.3(2)/1).

Published: 20 July 2021

New Location and Procedures for Volume C1 and METNO

Notification from the WMO Secretariat

The WMO Secretariat will migrate the WMO FTP server to a cloud service on 14 July 2021. This migration impact on the users will be as follows:

  • Submission of Advanced Notifications (ANs) for the publication of METNO can only be done using SFTP (SCP, SSH File Transfer Protocol
  • Users can continue logging in with their current Username and Password to the Host sftp.wis.wmo.int. 
  • Volume C1 and the METNOs will be available from https://wis.wmo.int/operational-info/
  • FTP and FTPS will no longer be supported after the migration
  • Access to Volume C1 and the METNO notifications will no longer be provided via (anonymous) FTP.

Users can test if they can connect to the new environment by logging in to the Host “sftp.wis.wmo.int” with the sftp protocol and their current Username and Password. The files in the environment will be replaced with the content of the current WMO FTP server when the service is launched operationally.

Please feel free to contact the WIS team using wis@wmo.int for questions.

Fingerprints of SFTP keys:

  • RSA: 4096 SHA256:TFlU52/ZflKrkn0uKac2REtvzLbyKOxQL4qb2YOVQjY env-5101396.jcloud-ver-jpc.ik-server.com (RSA)
  • ED25519: 256 SHA256:lJH70bz7Gov+Fcq5exbH9bdBjbOiFkA0N7riCsmbVCs env-5101396.jcloud-ver-jpc.ik-server.com (ED25519)

Reference: SFTP clients for Linux & Windows

Published: 05 July 2021

Radio Sounding Data from Oden Available from August to Early September 2021

Notification from Swedish Meteorological and Hydrological Institute (SMHI)

Vertical soundings of the atmosphere are very sparse over the central Arctic Ocean. As a part of the international Synoptic Arctic Survey research program, the Swedish research icebreaker ODEN (Call Sign: SMLQ) will navigate in the central Arctic Ocean in the sector north of Fram Strait and Greenland from August to early September 2021. Radio soundings will be released on August 1st, four times per day, at 00/06/12/18 UTC, and reported using BUFR sequence 309052.

  • IUSN41 ESWI (complete sounding)
  • IUKN41 ESWI (up to 100 hPa)

More information about the expedition can be found here: https://www.polar.se/en/expeditions/synoptic-arctic-survey-2021/

Published: 16 June 2021

Adoption of Amendments to Manual on Codes (WMO-No.306) by the Fast-track Procedure

Notification from the WMO Secretariat

In accordance with the "Procedures for Maintaining Manuals and Guides Managed by the Commission for Basic Systems" (Resolution 21 (Cg-17)), the amendments to the Manual on Codes Volume I.2 and Volume I.3, by the fast-track procedure have been approved by the Expert Team on Data Standards and the President of the Standing Committee on Information Management and Technology (SC-IMT). The President of WMO has adopted the amendments on behalf of the Executive Council in accordance with the procedures. The proposed implementation date of the amendments is 15 June 2021. 

The machine-readable tables of GRIB (v27), BUFR /CREX (v36), and Common Codes (v2021-06-15) are available for pre-operational use, and links to the downloadable zip files are posted to https://community.wmo.int/activity-areas/wmo-codes/manual-codes/latest-version. For more details, the amendments are posted at https://community.wmo.int/wis-manuals.

Published: 28 April 2021

New Aircraft-Based Observations -- Profile Product Messages from E-AMDAR Aircraft

Notification from the Met Office (United Kingdom)

Within the EUMETNET Aircraft Based Observations Programme (E-ABO Programme, formerly known as the E-AMDAR Programme), a profile product has been developed. This will allow users of the data from E-AMDAR equipped aircraft, the capability to receive a full aircraft profile (ascent or descent) message. This message provides all single-level observations from the profile in one message using the BUFR Template “3 11 012 “.

With effect from 0900 UTC Tuesday 4 May 2021, Met Office (EGRR) will be distributing these data messages on the GTS under the header IUOx01 EGRR (x="A", "B", "C", "D", "E","F", "G", "H", "I", "J", "K", "L).

If any further information is required, please contact the EUMETNET Aircraft Based Observations (E-ABO) Technical Co-ordinator: (stewart.taylor@metoffice.gov.uk)

Published: 22 April 2021

New Updates to Volume C1 Publishing Procedure

Notification from the WMO Secretariat

The publication of Volume C1, on hold since August 2020, is continuing from April 12 2021. The latest update to Volume C1 contains all the changes submitted since the last update in August 2020 and is now available here (in zip, XML, txt format). With the new publication procedure, which has been automated, the following changes apply:

  1.  The production of the “.exe” format has been discontinued.
  2. The Volume C1 is sorted using the following column sort order: "Region","RTH","Country","Centre","TTAAii","CCCC","CodeForm","TimeGroup","Content","Remarks","Date".
  3. All Volume C1 fields are fully quoted using ‘"’.
  4. GitHub repository has been created to track the changes to the text version of Volume C1 and will be updated together with the regular WMO FTP server.

All Members, especially RTHs, are requested to check Volume C1 and submit corrections using Advanced Notifications via the WMO FTP server if needed.

Published: 12 April 2021

WMO Essential Tropical Cyclone Tracks from 06/18 UTC Forecast Cycles Release Date and BUFR Template Update

Notification from the European Centre for Medium-Range Weather Forecasts (ECMWF)

ECMWF will make available Tropical Cyclone tracks from the 06/18 UTC forecast cycles as WMO essential products on the 11th of May 2021 06UTC cycle as part of the 47r2 model upgrade. In addition, all TC tracks BUFR files, including those from the 00/12 UTC forecast cycles, will use WMO BUFR tables version 35.

Further details and how to access test files are provided at https://confluence.ecmwf.int/display/FCST/Update+to+Tropical+Cyclone+tracks

Published: 29 March 2021

METNO Messages Issues Resolved

Notification from the WMO Secretariat

Emission of MetNo messages was interrupted in August 2020 due to processing issues at the Secretariat. The production of METNO has restarted regularly and past notifications have been sent on the GTS and are also available here.

Published: 10 February 2021

Extension of the Forecast Range in JMA's Global Deterministic Forecast Data for NMHSs

Notification from Japan Meteorological Agency (JMA)

The forecast range for the 00 UTC initial in JMA’s Global Spectral Model (GSM) will be extended from 132 to 264 hours on 17 February 2021. Information on related specifications and real-time product distribution is available at https://www.jma.go.jp/jma/en/NMHS/JMA_RSMC.html#Deterministic.

Published: 5 January 2021

Stop of Parallel Dissemination of German SHIP Reports in FM13 TAC

ECMWF Released WMO Essential, WMO Additional Products and Will Discontinue the ACMAD Feed

Notification from the European Centre for Medium-Range Weather Forecasts(ECMWF)

As of 3 Sept 2020, ECMWF released WMO essential products (publicly available) and additional products (available to NMHS of WMO countries) from the 06/18 UTC forecast cycles. In addition, four new surface fields previously available to ACMAD have now been released as WMO additional products. The ACMAD feed will be discontinued from the DCPC interface on 13 Jan 2021  (12UTC run).

The WMO essential tropical cyclone trajectories from the 06 and 18 UTC forecast cycles are released in test mode. Products are available from the ECMWF DCPC interface.

Further details are provided here.

Published: 22 December 2020

Stop of Parallel Dissemination of German SHIP Reports in FM13 TAC

Notification from Deutscher Wetterdienst (DWD)

As already announced in a previous article of this Operational Newsletter, Deutscher Wetterdienst will stop the parallel dissemination of German SHIP reports in FM13 TAC (Traditional Alphanumeric Code, ASCII) by the 19th January 2021. There will be no TAC FM13 data dissemination after this date.

All observational SHIP reports are available in FM94 BUFR code. Should you miss any data in BUFR, please contact DWD at wis@dwd.de

Published: 15 December 2020