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Notices and Advisories

NWS/TOC and NCEP/AWC Notices


WIFS Advisories

[24 July 2023 ] WAFC SIGWX back-up test on Wednesday 26 July 2023 - WAFC London Backing up WAFC Washington

WAFC SIGWX back-up test on Wednesday 26 July 2023

 

WAFC London Backing up WAFC Washington

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 26 July 2023.  During this test WAFC London will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 260600 UTC, July 2023

Valid Time 270600 UTC, July 2023

To be issued 1250 UTC on Wednesday 26 July 2023

WAFC London will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC Washington advises otherwise.<p>

 

 


[10 July 2023 ] WAFC SIGWX back-up test on Wednesday 12 July 2023 - WAFC Washington Backing up WAFC London

WAFC SIGWX back-up test on Wednesday 12 July 2023

WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 12 July 2023. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

 

NOTE: To comply with ICAO WG-MOG/3 (WAFS) Decision 3/1, during this backup event WAFC Washington will purposefully issue data one hour later than the normal issuance time.

Administrative messages will be issued in advance to remind users of the later than normal issue time.

 

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

 

Data Time 121200 UTC, July 2023

Valid Time 131200 UTC, July 2023

To be issued 1940-1955 UTC on Wednesday 12 July 2023

 

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.

 

 


[10 May 2023 ] DISRUPTION TO PRODUCTION OF WAFC LONDON SIGWX

DISRUPTION TO PRODUCTION OF WAFC LONDON SIGWX

WAFC Washington Backing up WAFC London

 

PRODUCTION OF WAFC LONDON (EGRR) SIGWX FORECASTS IS LIKELY TO BE DISRUPTED FOR SOME OR ALL OF THE FOLLOWING FORECAST PRODUCTION CYCLES:

 

09/1800 UTC (ISSUED AT 10/0050)

10/0000 UTC (ISSUED AT 10/0650)

10/0600 UTC (ISSUED AT 10/1250)

10/1200 UTC (ISSUED AT 10/1850)

10/1800 UTC (ISSUED AT 11/0050)

 

WAFC WASHINGTON WILL PROVIDE BACKUP AND ALL SIGWX BUFR ENCODED DATA AND PNG CHARTS SHOULD BE AVAILABLE ON SADIS AT THE NORMAL TIMES.


[03 May 2023 ] ATTN: All WIFS Users

In Nov 2023, the 1.25 degree horizontal resolution cumulonimbus, icing, and turbulence data sets will be retired. 

 

In short, data in these directories will be discontinued in Nov 2023:

 

/wifs/data/GRIB2/KWBC/cat

/wifs/data/GRIB2/KWBC/cb

/wifs/data/GRIB2/KWBC/ice

 

NOTE: The "_0.25" directories will not be affected.

 

These data sets were removed from ICAO Annex 3 in November 2020. All WIFS users depending on them should transition to the 0.25 degree horizontal resolution versions as soon as possible. 


[04 April 2023 ] WAFC SIGWX back-up test on Wednesday 5 April 2023 - WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 5 April 2023. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

 

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

 

Data Time 051200 UTC, April 2023

Valid Time 061200 UTC, April 2023

 

To be issued 1840-1855 UTC on Wednesday 05 April 2023

 

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.


[04 October 2022 ] WAFC SIGWX back-up test on Wednesday 05 October 2022 - WAFC Washington Backing up WAFC London

WAFC SIGWX back-up test on Wednesday 05 October 2022

WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 05 October 2022. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

NOTE: To comply with ICAO WG-MOG/3 (WAFS) Decision 3/1, during this backup event WAFC Washington will purposefully issue data one hour later than the normal issuance time.

Administrative messages will be issued in advance to remind users of the later than normal issue time.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 051200 UTC, October 2022

Valid Time 061200 UTC, October 2022

To be issued 1850 UTC on Wednesday 05 October 2022

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise


[19 July 2022 ] WAFC SIGWX back-up test on Wednesday 20 July 2022-WAFC London Backing up WAFC Washington

WAFC SIGWX back-up test on Wednesday 20 July 2022

WAFC London Backing up WAFC Washington

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 20 July 2022. During this test WAFC London will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 200600 UTC, July 2022

Valid Time 210600 UTC, July 2022

To be issued 1250-1255 UTC on Wednesday 20 July 2022.

 

WAFC London will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC Washington advises otherwise.


[05 July 2022 ] WAFC SIGWX back-up test on Wednesday 06 July 2022-WAFC Washington Backing up WAFC London

WAFC SIGWX back-up test on Wednesday 06 July 2022

WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 06 July 2022. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

NOTE: To comply with ICAO WG-MOG/3 (WAFS) Decision 3/1, during this backup event WAFC Washington will purposefully issue data one hour later than the normal issuance time.

Administrative messages will be issued in advance to remind users of the later than normal issue time.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 061200 UTC, July 2022

Valid Time 071200 UTC, July 2022

To be issued 1940-1955 UTC on Wednesday 06 July 2022

 

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.


[06 April 2022 ] WAFC SIGWX back-up test on Wednesday 6 April 2022-WAFC Washington Backing up WAFC London

WAFC SIGWX back-up test on Wednesday 6 April 2022

WAFC Washington Backing up WAFC London

 

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 6 April 2022.  During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

 

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

 

Data Time 061200 UTC, April 2022

Valid Time 071200 UTC, April 2022

To be issued 1840-1855 UTC on Wednesday 06 April 2022

                         

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.

 

The following products should be issued by WAFC Washington:

 

Product

 

Valid Time

 

Issue Time

 

WAFC Washington global SWH BUFR

 

071200 UTC

 

 

061840 to 061855 UTC

 

 

Identical global BUFR SWH with WAFC London headers

 

WAFC Washington BUFR covering 4 x SWM areas

 

071200 UTC

 

 

061840 to 061855 UTC

 

 

4 x identical BUFR SWM areas with WAFC London headers

 

WAFC Washington PNG SWM & SWH charts (8 charts)

 

WAFC London PNG SWM and SWH charts (10 charts)

 

 


[26 January 2022 ] WAFC London Backing up WAFC Washington-WAFC SIGWX back-up test on Wednesday 26 January 2022

WAFC SIGWX back-up test on Wednesday 26 January 2022

WAFC London Backing up WAFC Washington

 

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 26 January 2022.  During this test WAFC London will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

 

NOTE: To comply with ICAO WG-MOG/3 (WAFS) Decision 3/1, during this backup event WAFC London will purposefully issue data one hour later than the normal issuance time.

 

Administrative messages will be issued in advance to remind users of the later than normal issue time.

  

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC London will be those with:

 

Data Time 260600 UTC, January 2022

Valid Time 270600 UTC, January 2022

To be issued 1340-1355 UTC on Wednesday 26 January 2022, i.e. issued one hour later than normal

                              

WAFC London will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC Washington advises otherwise.

 

The following products should be issued by WAFC London:

 

Product

Valid Time

Issue Time

WAFC London global SWH BUFR

270600 UTC

 

261340 to 261355 UTC

 

Identical global BUFR SWH with WAFC Washington headers

WAFC London BUFR covering 4 x SWM areas

270600 UTC

 

261340 to 261355 UTC

 

4 x identical BUFR SWM areas with WAFC Washington headers

WAFC Washington PNG SWM & SWH charts (8 charts)

WAFC London PNG SWM and SWH charts (10 charts)

 


[12 January 2022 ] WAFC Washington Backing up WAFC London on Wednesday 12 January 2022

WAFC SIGWX back-up test on Wednesday 12 January 2022

WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 12 January 2022. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 121200 UTC, January 2022

Valid Time 131200 UTC, January 2022

To be issued 1840-1855 UTC on Wednesday 12 January 2022

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.


[20 October 2021 ] WAFC SIGWX back-up test on Wednesday 20 October 2021

WAFC SIGWX back-up test on Wednesday 20 October 2021

 

WAFC London Backing up WAFC Washington

 

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 20 October 2021.

During this test WAFC London will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for

both WAFC London and WAFC Washington.

 

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC London will be those with:

 

Data Time 200600 UTC, October 2021

 

Valid Time 210600 UTC, October 2021

 

To be issued 1250-1255 UTC on Wednesday 20 October 2021

  

WAFC London will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC Washington advises otherwise.

 

The following products should be issued by WAFC London:

 

Product

 

Valid Time

 

Issue Time

 

WAFC London global SWH BUFR

 

210600 UTC

 

 

201250 to 201255 UTC

 

 

Identical global BUFR SWH with WAFC Washington headers

 

WAFC London BUFR covering 4 x SWM areas

 

210600 UTC

 

 

201250 to 201255 UTC

 

 

4 x identical BUFR SWM areas with WAFC Washington headers

 

WAFC Washington PNG SWM & SWH charts (8 charts)

 

WAFC London PNG SWM and SWH charts (10 charts)

 

[06 October 2021 ] WAFC SIGWX back-up test

WAFC SIGWX back-up test on Wednesday 6 October 2021

WAFC Washington Backing up WAFC London

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 6 October 2021.  During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 061200 UTC, October 2021

Valid Time 071200 UTC, October 2021

To be issued 1840-1855 UTC on Wednesday 06 October 2021                                

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC London advises otherwise.

The following products should be issued by WAFC Washington:

Product

Valid Time

Issue Time

WAFC Washington global SWH BUFR

071200 UTC

061840 to 061855 UTC

Identical global BUFR SWH with WAFC London headers

WAFC Washington BUFR covering 4 x SWM areas

071200 UTC

061840 to 061855 UTC

4 x identical BUFR SWM areas with WAFC London headers

WAFC Washington PNG SWM & SWH charts (8 charts)

WAFC London PNG SWM and SWH charts (10 charts)




[04 October 2021 ] Data Flow Issues Causing Delays

NOTICE: Data flow issues with the Supercomputer have caused delays in the runningof the GFS model and the delivery of the data to WIFS.

Intermittent 30-40 minute delays are possible until the data flow issues are resolved.


[07 July 2021 ] WAFC SIGWX back-up test

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 7 July 2021. During this test WAFC Washington will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

NOTE: To comply with ICAO WG-MOG/3 (WAFS) Decision 3/1, during this backup event WAFC Washington will purposefully issue data one hour later than the normal issuance time.

The SWH BUFR; SWM BUFR data and all PNG Charts to be produced and issued by WAFC Washington will be those with:

Data Time 071200 UTC, July 2021
Valid Time 081200 UTC, July 2021
To be issued 1940-1955 UTC on Wednesday 07 July 2021

WAFC Washington will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs,  unless WAFC London advises otherwise.


[17 April 2021 ] WAFC SIGWX back-up test on Wednesday 19 April 2023

WAFC SIGWX back-up test on Wednesday 19 April 2023

WAFC London Backing up WAFC Washington

The next full WAFC SIGWX (SWH and SWM) back-up test will take place on Wednesday 19 April 2023.  During this test WAFC London will back-up (i.e. produce) all the PNG WAFC SIGWX charts and BUFR for both WAFC London and WAFC Washington.

The SWH BUFR; SWM BUFR data and all PNG Charts</b> to be produced and issued by WAFC London will be those with:

Data Time 190600 UTC, April 2023

Valid Time 200600 UTC, April 2023

To be issued 1250 UTC on Wednesday 19 April 2023  

WAFC London will produce and transmit the routine BUFR data and PNG charts on behalf of both WAFCs unless WAFC Washington advises otherwise.


[31 March 2021 ] WAFC Grid Problem Has Been Resolved

pstrongNOTICE to span classilWIFS/span Users/strong/ppThe problems with WAFC Washington KWBC 1.25 degree gridded data sets are resolved./ppThe dataflow was restored for the March 31st, 2021 12 UTC model cycle./ppWe apologize for the inconvenience./p


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