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  • MOS

      • SCN 19-23: Termination of the Global Ensemble Forecast System (GEFS)-based Model Output Statistics (MOS) product (MEN) on or about April 16, 2019
      • SCN18-77: Changes to the Global Forecast System (GFS)-based Model Output Statistics (MOS) guidance, effective on or about September 19, 2018
      • SCN17-130 Updated: Changes to NAM-based MOS Guidance, effective on or about January 23, 2018
      • SCN17-130: Changes to NAM-based MOS Guidance, effective on or about January 30, 2018
      • TIN:16-31 Amended:Changes to GFS-based Model Output Statistics (MOS) Guidance effective on or about November 3, 2016
      • TIN16-15 Amended: Changes to North American Mesoscale Model (NAM)-based Model Output Statistics (MOS) Guidance Effective August 16, 2016
      • TIN 15-33 Amended: Changes to North American Mesoscale Model (NAM)-based Model Output Statistics (MOS) Guidance Effective on January 13, 2016
      • TIN 15-34 Amended: Changes to GFS-based Model Output Statistics (MOS) Guidance effective October 19, 2015
      • TIN15-33 Changes to North American Mesoscale Model (NAM)-based Model Output Statistics (MOS) Guidance Effective September 29, 2015
      • TIN15- 09 Changes to Global Forecast System (GFS)-based Model Output Statistics (MOS) Guidance
      • TIN14- 47 Amended Changes to GFS-based Model Output Statistics (MOS) Guidance
      • TIN13-30: Amended Update to GFS-based Model Output Statistics (MOS) Wind Guidance and resulting changes to LAMP wind guidance
      • TIN13-22: Amended New GFS MOS total sky cover and ceiling guidance for island locations in the tropical western Pacific
      • TIN13-20: Amended Addition of mean total sky cover to 1200 UTC extended-range GFS MOS text and BUFR messages
      • TIN 12-42: CHANGE IN LAND SURFACE MODEL IN GLOBAL FORECAST SYSTEM AND ASSOCIATED COOL AND MOIST BIAS IN NEAR SURFACE TEMPERATURE AND MOISTURE FIELDS
      • TIN 12-25: CHANGES TO GFS MOS WIND SPEED AND DIRECTION GUIDANCE EQUATIONS FOR THE WARM SEASON
      • TIN 11-16 Amended:Amended: Implementation Date Delayed: Changes to the North American Mesoscale (NAM) Analysis and Forecast System: Effective October 18, 2011
      • TIN 10-20: CHANGES TO SHORT- RANGE AND EXTENDED-RANGE GLOBAL FORECAST SYSTEM (GFS)-BASED MOS BUFR PRODUCTS
      • TIN 09-39: CHANGES TO GFS MOS GUIDANCE EQUATIONS
      • TIN 09-04: REMINDER: TERMINATION OF THE NGM AND NGM-BASED PRODUCTS
      • TIN 08-90: TERMINATION OF THE NGM AND NGM-BASED PRODUCTS
      • TIN 08-89: REPLACEMENT OF ETA-BASED MOS GUIDANCE WITH NAM-BASED MOS GUIDANCE
      • TIN 08-55: NEW GFS MOS TEMPERATURE AND DEWPOINT GUIDANCE FOR ISLAND LOCATIONS IN THE WESTERN PACIFIC OCEAN
      • TIN 08-10: ADDITION OF GFS-BASED MOS THUNDERSTORM GUIDANCE FOR ALASKA
      • TIN 07-42: CHANGES TO GFS-BASED MOS AND LAMP PRODUCTS
      • TIN 07-34: UPGRADE OF GFS- BASED SKY COVER GUIDANCE
      • TIN 07-07: NEW GFS MOS PRECIPITATION GUIDANCE FOR ISLAND LOCATIONS IN THE WESTERN PACIFIC OCEAN
      • TIN 06-48: REMOVAL OF OBSOLETE SHORT-RANGE GFS-BASED MOS BUFR PRODUCTS
      • TIN 06-40: IMPACT ON ETA BASED MOS GUIDANCE WITH IMPLEMENTATION OF NON-HYDROSTATIC MESOSCALE MODEL
      • TIN 06-33: UPDATE TO STATIONS IN GFS-BASED MOS BUFR PRODUCTS
      • TIN 06-32: UPDATE TO STATIONS IN GFS MOS TEXT PRODUCTS
      • TIN 06-21: CHANGES TO EXTENDED-RANGE GFS-BASED MOS WIND GUIDANCE
      • TIN 06-17: ENHANCEMENTS OF GFS-BASED MOS THUNDERSTORM PRODUCTS
      • TIN 06-16: ADDITION OF ALASKA GFS-BASED RFC MOS PRODUCT
      • TIN 05-59: CHANGE OF LOCATION IDENTIFIER FOR GLACIER PARK INTERNATIONAL AIRPORT, KALISPELL, MONTANA FROM KFCA TO KGPI
      • TIN 05-56: ADDITION OF NEW GFS-BASED GRIDDED MOS GUIDANCE
      • TIN 05-52: REMOVAL OF NGM-BASED MOS REDBOOK GRAPHICS
      • TIN 05-45: ADDITION OF NEW EXTENDED-RANGE GFS-BASED MOS BUFR PRODUCTS
      • TIN 05-43: ADDITION OF VISIBILITY AND OBSTRUCTION TO VISION GUIDANCE TO ETA MOS PRODUCTS
      • TIN 05-42: ADDITION OF EXTENDED-RANGE GFS-BASED MOS TEXT PRODUCT FOR THE 1200 UTC MODEL CYCLE
      • TIN 05-08: NEW SHORT-RANGE GFS MOS GUIDANCE FOR ISLAND LOCATIONS IN THE WESTERN PACIFIC OCEAN
      • TIN 05-07: ADDITION OF TWO SITES TO THE SHORT-RANGE GFS MOS GUIDANCE
      • TIN 04-59: REMOVAL OF NGM-BASED TRAJECTORY MODEL PRODUCTS
      • TIN 04-54: ADDITION OF GFS-BASED MOS MAXIMUM AND MINIMUM TEMPERATURE GUIDANCE FOR COOPERATIVE OBSERVER LOCATIONS
      • TIN 04-53: ADDITION OF NEW SHORT-RANGE GFS-BASED MOS BUFR
      • TIN 04-52: ADDITION OF NEW ETA-BASED MOS BUFR PRODUCTS
      • TIN 04-51: ADDITION OF ETA-BASED MOS WIND AND TEMPERATURE GUIDANCE FOR MARINE LOCATIONS
      • TIN 04-32: ADDITION OF AIR TEMPERATURE AND DEW POINT GFS-BASED MOS GUIDANCE AT MARINE LOCATIONS
      • TIN 04-31: CHANGE TO NGM MOS BUFR PRODUCTS
      • TIN 04-29: CHANGE TO STATION IDENTIFIER IN GFS-BASED MOS TEXT PRODUCTS
      • TIN 04-28: CHANGE TO GFS- BASED RFC MOS PRODUCTS
      • TIN 04-11: CHANGE TO THE PRODUCT DELIVERY SCHEDULE FOR THE EXTENDED-RANGE GFS MOS GUIDANCE PRODUCTS
      • TIN 04-09: CHANGES IN GFS MOS GUIDANCE FOR TOTAL SKY COVER, CEILING HEIGHT AND VISIBILITY
      • TIN 03-49: CHANGES TO ETA MOS GUIDANCE CONTENT AND STATION LIST
      • TIN 03-48: CHANGE TO ISSUANCE TIME OF ETA MOS GUIDANCE
      • TIN 03-44: ADDITION/DELETION/UPDATE OF STATIONS IN GFS MOS
      • TIN 03-43: ENHANCEMENTS TO GFS MOS GUIDANCE INCLUDING ADDITION OF SNOWFALL AMOUNT GUIDANCE
      • TIN 03-21: ADDITION OF MODEL OUTPUT STATISTICS GUIDANCE FOR WIND
      • TIN 03-04: REMOVAL OF OBSOLETE EXTENDED-RANGE MOS GUIDANCE ON THE NCEP GLOBAL FORECAST SYSTEM
      • PNS 18-31:Soliciting comments on the termination of the GEFS MOS product (MEN) and GMOS/MOSGuide through December 31, 2018
      • PNS (July 2008): Soliciting Comments on the proposed replacement of Eta-based MOS products with NAM MOS products
      • PNS (July 2008): Soliciting Comments on the termination of the NGM and NGM-related products
      • PNS (June 2005): Soliciting Comments on removal of NGM-based Redbook Graphic Products
      • PNS (Oct 2004): Soliciting Comments on removal of NGM-based trajectory model

For a complete listing of SCN, TIN, PNS, and other change notifications from NWS, please see:
https://www.weather.gov/notification/or https://www.weather.gov/notification/archive (for older notices)