APPENDIX  II MANOP CODES AB AC AN AR AS AU AW AX CA CB CM CO CS CT CU DF FA Environmental data messages use coded MANOP headings to facilitate the rapid  automatic  switching  of  the  information  at  the  AWN  Automated  Weather  Data Switch (AWDS), as well as to provide recognition of the data contents. Refer to Chapter 1 of this module for a discussion on the format of MANOP headers. TT-  DATA CONTENT IDENTIFIERS Weather summaries; current conditions, previous  day  conditions,  tropical  weather summaries   and   outlooks,   agricultural summaries, and agricultural advisories. Convective analysis. Analysis  of  satellite  imagery  and  radar observations. Radar  analysis. Analysis, surface level, pressure, fronts. Analysis, constant pressure levels, heights, centers. Analysis,  wind. Analysis, miscellaneous: ice edge, satellite weather  summaries,  skew-t,  terminal  fore- cast  receipt  summaries,  tropical  cyclone, graphic analysis plots, analysis discussions, upper air, thickness analysis, flight hazards, snow  depth,  tropical  weather  summaries, observation  receipt  summary,  alerts  of significant  tropical  feature  in  satellite imagery, surface analysis, surface forecasts, upper-air observation receipt summary. Noncurrent scheduled TAF. Soil  moisture. Noncurrent  scheduled  METAR. Monthly  means  (Oceanic). Monthly means (Surface). Soil temperature reports. Monthly means (Upper-air). Forecast, radiological fallout winds. Forecast, aviation area weather (some with flight level winds/temps), aviation SAR weather. FB FC FD FE FJ FK FM FN FO FP FQ FR FS FT Forecast, flight level winds/temps, navy altimeter  setting,  aviation  area,  public, prognostic discussions. Terminal forecast valid 12 hours or less. Forecasts; flight level wind/temp. Forecasts, general surface, extended and outlooks; ice synopsis and outlook, upper air forecast and outlook. Forecasts,  parcel  trajectory. Forecast, air pollution potential. Forecast,  temperature  extremes,  special temperatures,  convective  gust  potential. Forecasts; general area weather (regional). Forecasts,  Military:  air  routes,  mission control,  mission  planning,  operation  area, air-refueling areas; paradrop zone, helo landing  zone,  SAR,  High  Interest  Area upper winds/temps; Also,  automated  forecast  guidance  for military  locations  of  MOS,  NGM,  LFM,  and trajectory  models  (numerous  parameters). Public  forecasts;  general  weather,  coastal marine, lakes, mid-ocean; Special   public   forecasts;   ozone,   UV, lightning. Height prog for standard isobaric levels. Forecasts,  Air-routes. Forecasts, Surface coded: Pressure, tem- peratures, winds; Forecasts, 1000-hPa level. Forecast,   Terminal   Aerodrome   (TAF) bulletins with valid periods of 12 hours or greater. AII-1