| ADMMSO | Administrative Message |
| ADRMSO | Administrative Message |
| AFDMSO | Area Forecast Discussion |
| AVWMSO | AVW Data |
| AWWGPI | Airport Weather Warning |
| AWWMSO | Airport Weather Warning |
| CCFMSO | Coded Cities Forecast |
| CEMMSO | Civil Emergency Message |
| CF6BTM | CF6 Data |
| CF6GPI | CF6 Data |
| CF6MSO | CF6 Data |
| CLIBTM | Climate Report |
| CLIGPI | Climate Report |
| CLIMSO | Climate Report |
| CLMBTM | Climate Summary |
| CLMGPI | Climate Summary |
| CLMMSO | Climate Summary |
| DSMBTM | FAA ASOS Daily Summary |
| DSMGPI | FAA ASOS Daily Summary |
| EQRMSO | Earthquake Report |
| ESFMSO | Hydrologic Outlook |
| FFAMSO | Flood Watch |
| FFSMSO | Flash Flood Statement |
| FFWMSO | Flash Flood Warning |
| FLSMSO | Flood Statement |
| FLWMSO | Flood Warning |
| FTMMSX | Free Text Message |
| FWFMSO | Fire Weather Forecast |
| FWMMSO | FWM Data |
| FWSMSO | Fire Weather Spot Forecast |
| HMLMSO | HML Data |
| HWOMSO | Hazardous Weather Outlook |
| LSRMSO | Local Storm Report |
| MISMSO | Climatological Data |
| MONMSG | MON Data |
| MSMGPI | FAA ASOS Monthly Summary |
| MTRBTM | METAR Observation |
| MTRGPI | METAR Observation |
| NOWMSO | Short Term Forecast |
| NPWMSO | Non-Precipitation Watch/Warning/Advisory |
| OSOMSO | Daily Cooperative Observer and Automated Station Reports |
| PFMMSO | Point Forecast Matrices |
| PNSMSO | Public Information Statement |
| QPSMSO | Routine QPF |
| RECMSO | Tidal Information |
| RERMSO | Record Event Report |
| RFWMSO | Red Flag Warning |
| RR1MSO | RR1 Hydrology Report |
| RR2MSO | RR2 Hydrology Report |
| RR3MSO | RR3 Hydrology Report |
| RR4MSO | RR4 Hydrology Report |
| RR5MSO | RR5 Hydrology Report |
| RR7GPI | RR7 Hydrology Report |
| RRMMSO | RRM Hydrology Report |
| RVSMSO | Hydrologic Statement |
| SABGPI | SAB Data |
| SABMSO | SAB Data |
| SCDGPI | SCD Data |
| SCDMSO | SCD Data |
| SFPMSO | State Forecast |
| SFTMSO | Tabular State Forecast |
| SPSMSO | Special Weather Statement |
| STQMSO | Spot Forecast Request |
| SVRMSO | Severe Thunderstorm Warning |
| SVSMSO | Severe Weather Statement |
| TAFBTM | Terminal Aerodrome Forecast |
| TAFGPI | Terminal Aerodrome Forecast |
| TAFMSO | Terminal Aerodrome Forecast |
| TAFSMN | Terminal Aerodrome Forecast |
| TORMSO | Tornado Warning |
| TR3DU | TR3 Data |
| VFTMSO | VFT Data |
| WCNMSO | Watch County Notification Message |
| WRKMSO | Work Document |
| WSWMSO | Winter Storm Watch/Warning/Advisory |
| ZFPMSO | Zone Forecast |