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VolC1 - METNO

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Operational Information Service (OIS)

The WMO Secretariat migrated the WMO FTP server to a cloud service on 14 July 2021. More information can be found here.

 
VOLUME C1 - CATALOGUE OF METEOROLOGICAL BULLETINS

METNO MESSAGES

 

What is a METNO message?

METNO messages are meteorological notifications automatically generated from advanced notifications received from the RTHs on the MTN.

If there is no advanced notification for a week, a METNO message with the text "NIL" will be sent so that GTS centres can verify that all METNOs have been received.

METNO Messages are sent at 1500 UTC, every Tuesday and are also available on the WMO SFTP server.
 
METNO format

To differentiate METNO messages related to Volume C1 from those related to Volume A, the following abbreviated headings are used:

  • For a METNO message related to Volume A: NOXX01 LSSW YYGGgg

  • For a METNO message related to Volume C1: NOXX02 LSSW YYGGgg
 
METNO available here: (https://wis.wmo.int/operational-info/METNO/)
 

Example of a METNO message prepared on Tuesday 30 June 2020 (C2720):

ZCZC

000

NOXX02 LSSW 300400

METNO C2720

174 DM 23/06/2020 6 NORRKOPING NORWAY OSLO 11/01/2008 E IUKD15 ENMI FM 94-XII BUFR 00, 12 01241 UP TO 100 HPA

175 AM 23/06/2020 6 NORRKOPING NORWAY OSLO 02/07/2020 E IUKD15 ENMI FM 94-XII BUFR 00,12 01241 UP TO 100 HPA, High resolution 2 sec., BUFR309057, WSI: 0-20001-0-01241

176 DM 23/06/2020 6 NORRKOPING NORWAY OSLO 11/01/2008 E IUSD15 ENMI FM 94-XII BUFR 00,12 01241 COMPLETE SOUNDING

177 AM 23/06/2020 6 NORRKOPING NORWAY OSLO 02/07/2020 E IUSD15 ENMI FM 94-XII BUFR 00,12 01241 COMPLETE SOUNDING, High resolution 2 sec., BUFR309057, WSI: 0-20001-0-01241

178 DD 23/06/2020 6 NORRKOPING NORWAY OSLO 22/02/2019 E IUDD15 ENMI FM94-XII BUFR 00,12 01241 Dropsonde

179 AA 23/06/2020 6 NORRKOPING NORWAY OSLO 02/07/2020 E IUXD15 ENMI FM 94-XII BUFR 00,12 01241 Radiosonde descent, High resolution 2 sec, BUFR309056, WSI: 0-20001-0-01241

NNNN
 
Explanation of a METNO message:
METNO
Code
Explanation

000

ZCZC

Transmission sequence number:  It is a three-digit group giving the transmission sequence of messages from one centre over a particular channel to the receiving centre on that channel.  Numbers 000-999 inlcusive must be used in a cyclic

NO

T1T2

Data type and/or form designators.  Warning (does not change for a METNO).

XX

A1A2

Geographical and/or data type and/or time designators (does not change for a METNO).

02

ii

To indicate that it is  a METNO message related to Volume C1

LSSW

CCCC

LSSW - for Zurich centre

100400

YYGGgg

Day and hour in UTC for insertion into the GTS.  YY= day of the month, GGgg= hour in UTC

METNO

METNO

Message identifier

C

C

Sequence of characters to indicate the end of a METNO message

15

XX

Weekly serial number

08

YY

Year 2008

RRx eg RRA

BBB

Used to segment a large set of information into several bulletins; where "x" is an alphabetical character of A - X

NNNN

NNNN

Sequence of characters to indicate the end of a METNO message.