WMO Header Descriptions
WMO Header information
Syntax:
TTAAII CCCC
Where:
- TT - Report type
- AA - Region of the report
- II - Report number
- CCCC - Report dissimination location
Report Types
| Type | Description | Codes |
| A | Summaries and analyses | TEXT/WMO |
| C | Climatic data | TEXT/WMO |
| D | Grid point information | GRID |
| E | Satellite imagery | |
| F | Forecasts | TEXT/WMO |
| G | Grid point information | GRID |
| H | Grid point information | GRIB |
| I | Binary observations | BUFR |
| J | Binary forecasts | BUFR |
| N | Notices | TEXT |
| O | Oceanographic data | GRIB |
| P | Pictorial data | Redbook |
| Q | Pictorial data (regional) | |
| R | Hydrological data | TEXT/WMO |
| S | Surface data | TEXT/WMO |
| T | Satellite data | TEXT/WMO |
| U | Upper air data | TEXT/WMO |
| V | National data | |
| W | Watches, warnings and advisories | TEXT |
| X | Grid point information | GRID |
| Y | Grid point information | GRIB |
| Z | Grid point information | GRIB |
| TT | Explanation | Code Form |
| AB | Weather summaries | TEXT |
| AC | Convective/Cyclone discussions | TEXT |
| AI | Ice discussions | FM 44 (ICEAN) |
| AO | Ozone discussions | TEXT |
| AR | Radar discussions | TEXT |
| AS | Surface discussions/analyses | FM 45 (IAC), FM 46 (IAC FLEET), TEXT |
| AT | Satellite discussions | FM 85 (SAREP) |
| AU | Upper air discussions | FM 45 (IAC) |
| AX | Tropical and miscellaneous discussions | TEXT |
| TT | Explanation | Code Form |
| CA | Climatic anomalies | TEXT |
| CE | Monthly data - upper air | FM 76 (CLIMAT TEMP SHIP) |
| CH | Monthly data - surface | FM 72 (CLIMAT SHIP) |
| CO | Monthly data - ocean areas | FM 73 (NACLI, CLINP, SPCLI, CLISA, INCLI) |
| CS | Monthly data - surface | FM 71 (CLIMAT) |
| CU | Monthly data - upper air | FM 75 (CLIMAT TEMP) |
| TT | Explanation | Code Form |
| FA | Aviation forecasts | FM 53 (ARFOR) |
| FB | Upper level windows and temperatures | FM 50 (WINTEM) |
| FC | Aerodrome forecasts (VT < 12hr) | FM 51 (TAF) |
| FD | Radiological trajectory | FM 57 (RADOF) |
| FE | Extended forecasts | TEXT |
| FF | Shipping forecasts | FM 46 (IAC FLEET) |
| FI | Iceberg forecasts | TEXT |
| FJ | Radio warning service | TEXT |
| FM | Temperature extreme forecasts | TEXT |
| FO | Model guidance forecasts | Formatted TEXT |
| FP | Public forecasts | TEXT |
| FQ | Other shipping forecasts | TEXT |
| FR | Aviation route forecasts | FM 54 (ROFOR) |
| FS | Surface forecasts | FM 45 (IAC), FM 46 (IAC FLEET), TEXT |
| FT | Aerodrome forecasts (VT > 12hr) | FM 51 (TAF) |
| FU | Upper air forecasts | FM 45 (IAC) |
| FW | Winter sports forecasts | TEXT |
| FX | Miscellaneous forecasts | TEXT |
| FZ | Shipping area forecasts | FM 61 (MAFOR) |
| TT | Explanation | Code Form |
| SA | Aviation routine reports | FM 15 (METAR), SAO |
| SB | Radar reports (part A) | FM 20 (RADOB) |
| SC | Radar reports (part B) | FM 20 (RADOB) |
| SD | Radar reports (parts A & B) | FM 20 (RADOB), Formatted TEXT |
| SE | Earthquake/Seismic reports | Formatted TEXT |
| SF | Atmopsheric reports | FM 81 (SFAZI), FM 82 (SFLOC), FM 83 (SFAZU) |
| SG | Radiological data reports | FM 22 (RADREP) |
| SI | Intermediate synoptic hour reports | FM12 (SYNOP), FM13 (SHIP) |
| SM | Main synoptic hour reports | FM12 (SYNOP), FM13 (SHIP) |
| SN | Nonstandard synoptic reports | FM12 (SYNOP), FM13 (SHIP) |
| SO | Oceanographic data | TEXT |
| SP | Special aviation reports | FM 16 (SPECI) |
| SR | Hydrological reports | FM 67 (HYDRA) |
| ST | Sea ice reports | TEXT |
| SU | Snow depth reports | TEXT |
| SV | Lake ice reports | TEXT |
| SX | Miscellaneous reports | TEXT |
| TT | Explanation | Code Form |
| TB | Satellite orbit parameters | Formatted TEXT |
| TC | Satellite cloud interpretations | FM 85 (SAREP) |
| TH | Satellite derived upper air soundings | FM 86 (SATEM) |
| TI | Satellite imagery | NOAAPORT Satellite Format |
| TR | Clear radiance observations | FM 87 (SARAD) |
| TT | Sea surface temperatures | FM 88 (SATOB) |
| TW | Winds and cloud temperatures | FM 88 (SATOB) |
| TX | Miscellaneous satellite reports | TEXT |
| TT | Explanation | Code Form |
| UA | Aircraft reports | AIREP |
| UB | Aircraft reports | AIREP |
| UC | Constant balloon data | COLBA |
| UD | Aircraft reports | FM 42 (AMDAR) |
| UE | Upper air temp data (part D) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UF | Upper air temp data (part C, D) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UG | Upper air wind data (part B) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UH | Upper air wind data (part C) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UI | Upper air wind data (part A, B) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UK | Upper air temp data (part B) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UL | Upper air temp data (part C) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UM | Upper air temp data (part A, B) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UN | Rocketsonde reports | FM 39 (ROCOB), FM 40 (ROCOB SHIP) |
| UP | Upper air wind data (part A) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UQ | Upper air wind data (part D) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UR | Aircraft recon reports | RECCO |
| US | Upper air temp data (part A) | FM 35 (TEMP), FM 36 (TEMP SHIP), FM 38 (TEMP MOBIL) |
| UT | Aircraft reports | FM 41 (CODAR) |
| UX | Miscellaneous upper air reports | TEXT |
| UY | Upper air wind data (part C, D) | FM 32 (PILOT), FM 33 (PILOT SHIP), FM 34 (PILOT MOBIL) |
| UZ | Dropsonde reports | FM 37 (TEMP DROP) |
[W] Watch and warning information
| TT | Explanation | Code Form |
| WC | Aviation forecasts | FM 53 (ARFOR) |
| FB | Upper level windows and temperatures | FM 50 (WINTEM) |
| FC | Aerodrome forecasts (VT < 12hr) | FM 51 (TAF) |
| FD | Radiological trajectory | FM 57 (RADOF) |
| FE | Extended forecasts | TEXT |
| FF | Shipping forecasts | FM 46 (IAC FLEET) |
| FI | Iceberg forecasts | TEXT |
| FJ | Radio warning service | TEXT |
| FM | Temperature extreme forecasts | TEXT |
| FO | Model guidance forecasts | Formatted TEXT |
| FP | Public forecasts | TEXT |
| FQ | Other shipping forecasts | TEXT |
| FR | Aviation route forecasts | FM 54 (ROFOR) |
| FS | Surface forecasts | FM 45 (IAC), FM 46 (IAC FLEET), TEXT |
| FT | Aerodrome forecasts (VT > 12hr) | FM 51 (TAF) |
Report Region
Countries, regions and islands
| AA | Region | AA | Region | AA | Region |
| AB | Albania | AG | Argentina | AH | Afghanistan |
| AI | Ascension lsland | AK | Alaska | AL | Algeria |
| AN | Angola | AT | Antigua, St Kitts and other British Islands in the vicinity |
AU | Australia |
| AZ | Azores | BA | Bahamas | BC | Botswana |
| BD | Bruei Darussalam | BE | Bermuda | BH | Belize |
| BI | Burundi | BJ | Benin | BK | Banks Island |
| BM | Myanmar | BN | Bahrain | BO | Bolivia |
| BQ | Baltic Sea area | BR | Barbados | BU | Bulgaria |
| BV | Bouvet Island | BW | Bangladesh | BX | Belgium, Luxembourg |
| BY | Belarus | BZ | Brazil | CA | Caribbean area and Central America |
| CD | Chad | CE | Central African Republic | CG | Congo |
| CH | Chile | CI | China | CM | Cameroon |
| CN | Canada | CO | Colombia | CR | Spain (Canary Islands) |
| CS | Costa Rica | CT | Canton Island | CU | Cuba |
| CV | Cape Verde | CY | Cyprus | CZ | Czechoslovakia |
| DJ | Djibouti | DL | Germany | DN | Denmark |
| DO | Dominica | DR | Dominican Republic | EG | Egypt |
| EQ | Ecuador | ER | United Arab Emirates | ES | El Salvador |
| ET | Ethiopia | FA | Faeroes | FG | French Guyana |
| FL | Finland | FJ | Fiji | FK | Falkland Islands (Malvinas) |
| FP | St Pierre and Miquelon | FR | France | FW | Wallis and Futuna Islands |
| GB | Gambia | GC | Cayman Islands | GD | Grenada |
| GE | Gough Island | GH | Ghana | GI | Gibraltar |
| GL | Greenland | GM | Guam | GN | Guinea |
| GO | Gabon | GQ | Equatorial Guinea | GR | Greece |
| GU | Guatemala | GW | Guinea-Bissau | GY | Guyana |
| HA | Haiti | HE | St. Helena | HK | Hong Kong |
| HO | Honduras | HU | Hungary, Republic of | HV | Burkina Faso |
| HW | Hawaiian Islands | IC | Comoros | ID | Indonesia |
| IE | Ireland | IL | Iceland | IN | India |
| IQ | Iraq | IR | Iran, Islamic Republic of | IS | Isreal |
| IV | Ivory Coast | IY | Italy | JD | Jordan |
| JM | Jamaica | JP | Japan | KA | Caroline Islands |
| KB | Kiribati | KI | Chistmas Island | KK | Cocos Islands |
| KN | Kenya | KO | Korea, Republic of | KP | Cambodia |
| KR | Democratic People's Republic of Korea |
KU | Cook Islands | KW | Kuwait |
| LA | Lao People's Democratic Republic (Laos) |
LB | Lebanon | LC | Saint Lucia |
| LI | Liberia | LN | Southern Line Islands | LS | Lesotho |
| LU | Aleutian Islands | LY | Libyan Arab Jamahiriya | MA | Mauritius |
| MB | Marion Island | MC | Morocco | MD | Madeira |
| MF | Saint Martin, Saint Bartholomew, Guadeloupe and other French Islands in the vicinity |
MG | Madagascar | MH | Marshall Island |
| MI | Mali | MK | Macquarie Island | ML | Malta |
| MN | Mt Maarten, St Eustatius and Saba |
MO | Mongolia | MR | Martinique |
| MS | Malaysia | MT | Mauritania | MU | Macao |
| MV | Maldives | MW | Malawi | MX | Mexico |
| MY | Mariana lslands | MZ | Mozambique | NC | New Caledonia |
| NF | Norfolk Island | NG | Papua New Guinea | NI | Nigeria |
| NK | Nicaragua | NL | Netherlands | NM | Namibia |
| NO | Norway | NP | Nepal | NR | Niger |
| NU | Netherlands Antilles (Aruba, Bonaire, Curacao) |
NV | Vanuatu | NW | Nauru |
| NZ | New Zealand | OM | Oman | OR | South Orkney Islands |
| OS | Austria | PF | French Polynesia | PH | Phillippines |
| PI | Phoenix Islands | PK | Pakistan | PL | Poland, Republic of |
| PM | Panama | PO | Portugal | PR | Peru |
| PT | Pitcairn Island | PU | Puerto Rico | PY | Paraguay |
| QT | Qatar | RA | Russian Federation (Asia) | RE | Reunion and associated islands |
| RO | Romania | RS | Russian Federation (Europe) | RW | Rwanda |
| SB | Sri Lanka | SC | Seychelles | SD | Saudi Arabia |
| SG | Senegal | SI | Somalia | SK | Sarawak |
| SL | Sierra Leone | SM | Suriname | SN | Sweden |
| SO | Solomon Islands | SR | Singapore | SP | Spain |
| SU | Swaziland | SV | Switzerland | SW | Santa Cruz Islands |
| SY | Syria Arab Republic | SZ | Spitzbergen | TC | Tristan da Cunha |
| TD | Trinidad and Tobago | TG | Togo | TH | Thailand |
| TI | Turk Islands | TK | Tokelau Islands | TM | Timor |
| TN | Tanzania, United Republic of | TO | Tonga | TP | Sao Tome and Principe |
| TS | Tunisia | TU | Turkey | TV | Tuvalu |
| UG | Uganda | UK | United Kingdom of Great Britain and Northern Ireland |
UR | Ukraine |
| US | United States of America | UY | Uraguay | VI | Virgin Islands |
| VN | Venezuela | VS | Vietnam, Socialist Republic of | WK | Wake Island |
| YE | Yemen, Republic of | YG | Yugoslavia | ZA | South Africa |
| ZB | Zambia | ZM | Western Samoa | ZR | Zaire |
| ZW | Zimbabwe |
Continents, Oceans and Hemispheres
| AA | Region | AA | Region | AA | Region |
| AA | Antarctica | AC | Artic | AE | South-East Asia |
| AF | Africa | AM | Central Africa | AO | West Africa |
| AP | Southern Africa | AR | Arabian Sea area | AS | Asia |
| AW | Near East | EA | East Africa | EC | East China Sea area |
| EE | Eastern Europe | EM | Middle Europe | EN | Northern Europe |
| EU | Europe | EW | Western Europe | FE | Far East |
| GA | Gulf of Alaska area | GX | Gulf of Mexico area | IO | Indian Ocean area |
| ME | Eastern Mediterranean area | MM | Mediterranean area | MP | Central Mediterranean area |
| MQ | Western Mediterranean area | NA | North America | NT | North Atlantic area |
| OC | Oceania | OH | Sea of Okhotsk | PA | Pacific area |
| PE | Persian Gulf area | PN | North Pacific area | PQ | Western North Pacific |
| PS | South Pacific area | PW | Western Pacific area | PZ | Eastern Pacific area |
| SA | South America | SE | Southern Ocean area | SJ | Sea of Japan area |
| SS | South China Sea area | ST | South Atlantic area | XE | Eastern hemisphere |
| XN | Northern hemisphere | XS | Southern hemisphere | XT | Tropical belt |
| XW | Western hemisphere | XX | for use where other designator are not appropriate |
Last updated August 11, 1998