NOUS41 KWBC 151455 AAA PNSWSH Technical Implementation Notice 13-22 Amended National Weather Service Headquarters Washington DC 1055 AM EDT Fri Oct 25 2013 To: Subscribers: -Family of Services -NOAA Weather Wire Service -Emergency Managers Weather Information Network -NOAAPORT Other NWS Partners, Users and Employees From: Tim McClung Science Plans Branch Chief Office of Science and Technology Subject: Amended: New GFS MOS total sky cover and ceiling guidance for island locations in the tropical western Pacific, effective November 5, 2013 Amended to change the implementation date from October 22, 2013 to November 5, 2013 On Tuesday, November 5, 2013, beginning with the 1200 Universal Coordinated Time (UTC) model cycle, the NWS Meteorological Development Laboratory (MDL) will make available new GFS MOS total sky cover and ceiling guidance for 15 stations in the Pacific Ocean to the west of the Hawaiian Islands for short range projections. This guidance will be added to the existing products in text (MAV) and BUFR messages. The communication identifiers are shown below in Tables 1 and 2. Table 1. Communication identifiers for the Hawaii GFS MOS text and BUFR products WMO HEADING AWIPS ID MESSAGE TYPE ----------- -------- ------------ FOPA20 KWNO MAVPA0 TEXT JSMT20 KWNO N/A BUFR Total sky cover and ceiling guidance will be made available for these two stations in the Hawaii GFS MOS messages: NSTU Pago Pago, American Samoa PMDY Midway Island Table 2. Communication identifiers for GFS-based MOS text and BUFR products valid for island stations to the west of International Date Line WMO HEADING AWIPS ID MESSAGE TYPE ----------- -------- ------------ FOPA21 KWNO MAVPA1 TEXT JSML38 KWNO N/A BUFR Total sky cover and ceiling guidance will be made available for these 13 stations in the tropical western Pacific Ocean, to the west of International Date Line: PGRO Rota International Airport/Rota Island, Mariana Islands PGSN Saipan, Mariana Islands PGUA Andersen AFB, Guam PGUM Guam International Airport, Guam PGWT West Tinian, Northern Mariana Islands PKMR Majuro Atoll WSO, Marshall Islands PKWA Kwajalein, Marshall Islands PTKK Chuuk, Micronesia PTKR Koror, WSO, Palau PTSA Kosrae, Micronesia PTTP Pohnpei, WSO, Micronesia PTYA Yap, Micronesia PWAK Wake Island The complete GFS MOS station list is online at. http://www.nws.noaa.gov/mdl/synop/stadrg.php A technical document describing the format of the tropical western Pacific Ocean MOS guidance is available from the Technical Procedure Bulletins hosted on publications page listed at the URL below. http://www.nws.noaa.gov/mdl/synop/smbpublications.php For questions regarding the Pacific MOS product, please contact: James Su MDL/Silver Spring, Maryland 301-713-0023 Ext.139 James.Su@noaa.gov Links to the MOS products and descriptions are online at: http://www.nws.noaa.gov/mdl/synop NWS national Technical Implementation Notices are online at: http://www.weather.gov/os/notif.htm $$