Table 6.54 -- EDCS Attribute enumerant codes for attributes whose label begins with W
| Attribute label | Enumerant label | Definition | Related concepts | Code |
| WALL_TYPE | The type of a wall. | |||
| RETAINING | A wall built to hold in place a mass of soil, often at the edge of a terrace or excavation. |   | 11 | |
| STANDING | A wall that does not have a retaining function. |   | 12 | |
| WARNING_SIGNAL_STATION_TYPE | The type of a warning signal station. | |||
| CABLE |   | 11 | ||
| DANGER |   | 12 | ||
| DISTRESS |   | 13 | ||
| DIVING | Indicates that diving may take place in the vicinity. |   | 14 | |
| ICE |   | 15 | ||
| MARITIME_OBSTRUCTION |   | 16 | ||
| MILITARY_PRACTICE |   | 17 | ||
| STORM |   | 18 | ||
| TIDAL_STREAM |   | 19 | ||
| TIDE |   | 20 | ||
| TIDE_GAUGE |   | 21 | ||
| TIDE_SCALE |   | 22 | ||
| TIME |   | 23 | ||
| WATER_LEVEL_GAUGE |   | 24 | ||
| WEATHER |   | 25 | ||
| WATER_BOTTOM_MORPHOLOGY | The morphology of the bottom of hydrographic objects, e.g., lakes and oceans. | |||
| ABYSSAL_HILLS |   | 11 | ||
| ABYSSAL_PLAIN |   | 12 | ||
| APRON |   | 13 | ||
| ARCHIPELAGIC_APRON |   | 14 | ||
| BANK |   | 15 | ||
| BASIN |   | 16 | ||
| BAY |   | 17 | ||
| BENCH |   | 18 | ||
| BORDERLAND |   | 19 | ||
| CANAL |   | 20 | ||
| CANYON |   | 21 | ||
| CANYON_LANDS |   | 22 | ||
| CONTINENTAL_MARGIN |   | 23 | ||
| CONTINENTAL_RISE |   | 24 | ||
| CRATER |   | 25 | ||
| DEEP |   | 26 | ||
| ESCARPMENT |   | 27 | ||
| FAN |   | 28 | ||
| FEVEE |   | 29 | ||
| FRACTURE_ZONE |   | 30 | ||
| GAP |   | 31 | ||
| GAT |   | 32 | ||
| GENERIC | An expanse of sea, in general. |   | 33 | |
| GUYOT |   | 34 | ||
| HILL |   | 35 | ||
| HOLE |   | 36 | ||
| KNOLL |   | 37 | ||
| LAKE |   | 38 | ||
| LEDGE |   | 39 | ||
| LOWLANDS |   | 40 | ||
| MEDIAN_VALLEY |   | 41 | ||
| MOAT |   | 42 | ||
| MOUNTAINS |   | 43 | ||
| MUD_FLATS |   | 44 | ||
| NARROWS |   | 45 | ||
| PEAK |   | 46 | ||
| PINNACLE |   | 47 | ||
| PLATEAU |   | 48 | ||
| PROVINCE |   | 49 | ||
| REACH |   | 50 | ||
| REEF |   | 51 | ||
| RIDGE |   | 52 | ||
| RISE |   | 53 | ||
| RIVER |   | 54 | ||
| SADDLE |   | 55 | ||
| SEA_CHANNEL |   | 56 | ||
| SEAMOUNT |   | 57 | ||
| SEAMOUNT_CHAIN |   | 58 | ||
| SHELF |   | 59 | ||
| SHELF_EDGE |   | 60 | ||
| SHOAL |   | 61 | ||
| SILL |   | 62 | ||
| SLOPE |   | 63 | ||
| SPUR |   | 64 | ||
| TERRACE |   | 65 | ||
| TRENCH |   | 66 | ||
| TROUGH |   | 67 | ||
| VALLEY |   | 68 | ||
| WATT |   | 69 | ||
| WATER_BOTTOM_OBJECT_TYPE | Type of an object that is located on the bottom of hydrographic objects, e.g., lakes and oceans. | |||
| FISH_HAVEN |   | 11 | ||
| LESS_WATER_REPORTED |   | 12 | ||
| PINNACLE |   | 13 | ||
| SHOALING |   | 14 | ||
| SUBMERGED_PROD_PLATFORM | Submerged production platform. |   | 15 | |
| UNEXPLODED_ORDNANCE |   | 16 | ||
| UNKNOWN_OBSTRUCTION |   | 17 | ||
| UNSPEC_NON_SUB_CONTACT | Unspecified non-submarine contact. |   | 18 | |
| WELL |   | 19 | ||
| WRECKAGE |   | 20 | ||
| WATER_CURRENT_TYPE | The type of a current (horizontal movement of a body of water). | |||
| EBB |   | 11 | ||
| FLOOD |   | 12 | ||
| GENERAL_FLOW |   | 13 | ||
| LONGSHORE |   | 14 | ||
| OCEAN_FLOW |   | 15 | ||
| RIFLOW |   | 16 | ||
| RIP |   | 17 | ||
| WATER_DEPTH_RANGE | Predominant water depth within delineation of an object, determined at the greatest depth along a cross section of the object. | |||
| le0r8_M | <= 0,8 metre. |   | 11 | |
| gt0r8_AND_le1r6_M | > 0,8 metre and <= 1,6 metres. |   | 12 | |
| le1r6_M | <= 1,6 metres. |   | 13 | |
| gt1r6_AND_le2r4_M | > 1,6 metres and <= 2,4 metres. |   | 14 | |
| gt2r4_M | > 2,4 metres. |   | 15 | |
| WATER_LEVEL_EFFECT | The type of effect of surrounding water. | |||
| ALWAYS_DRY | Always above water (dry). |   | 11 | |
| ALWAYS_UNDER_WATER | Always under water (submerged). |   | 12 | |
| AWASH |   | 13 | ||
| COVERS_AND_UNCOVERS | Covers and uncovers. |   | 14 | |
| DRYING |   | 15 | ||
| FLOATING |   | 16 | ||
| PARTLY_SUBMERGED | Partially submerged at high water. |   | 17 | |
| SUBJECT_TO_INUNDATION | Subject to inundation or flooding. |   | 18 | |
| WATER_QUALITY | The type of drinking quality of water. | |||
| CONTAMINATED |   | 11 | ||
| POTABLE |   | 12 | ||
| TREATABLE |   | 13 | ||
| WATER_TABLE_DEPTH_RANGE | Range of average depth of a zone of saturation except where bounded by an impermeable body in which no water table exists. | |||
| SURFACE | At ground surface. |   | 11 | |
| SHALLOW | > 0 metres and <= 0,3 metres. |   | 12 | |
| MODERATE | > 0,3 metres and <= 1,2 metres. |   | 13 | |
| DEEP | > 1,2 metres. |   | 14 | |
| WATER_TYPE | The type of available water. | |||
| ALKALINE |   | 11 | ||
| BRACKISH |   | 12 | ||
| FRESH |   | 13 | ||
| MINERAL |   | 14 | ||
| POTABLE |   | 15 | ||
| SALT |   | 16 | ||
| WAYPOINT_TYPE | The type of a named waypoint. | |||
| AIRPORT | Airport waypoint. |   | 11 | |
| ATC_COMPULSORY | ATC compulsory waypoint. |   | 12 | |
| BACK_COURSE_MARKER | Back course marker. |   | 13 | |
| DME_FIX | DME fix. |   | 14 | |
| END_CONTINUOUS_AIRWAY | End of continuous airway procedure. |   | 15 | |
| ESSENTIAL | Essential waypoint. |   | 16 | |
| FAN_MARKER | Fan marker. |   | 17 | |
| FINAL_APPROACH_COURSE_FIX | A bearing\radial\track of an instrument approach leading to a runway or an extended runway centreline all without regard to distance. |   | 18 | |
| FINAL_APPROACH_FIX | The fix from which the final approach (instrument flight rules) to an airport is executed and which identifies the beginning of the final approach segment. |   | 19 | |
| FIRST_LEG_MISSED_APPROACH | First leg of missed approach. |   | 20 | |
| GATEWAY_FIX |   | 21 | ||
| HOLDING_FIX | A specified fix identifiable to a pilot by NAVAIDs or visual reference to the ground used as a reference point in establishing and maintaining the position of an aircraft while holding. |   | 22 | |
| INITIAL_APPROACH_FIX | Initial approach fix. |   | 23 | |
| INNER_MARKER | Inner marker. |   | 24 | |
| MIDDLE_MARKER | Middle marker. |   | 25 | |
| MISSED_APPROACH_POINT | A point prescribed in each instrument flight rules approach procedure at which a missed approach procedure shall be executed if the required visual reference does not exist. |   | 26 | |
| NON_ESSENTIAL | Non-essential waypoint. |   | 27 | |
| OFF_AIRWAY | Off-runway waypoint. |   | 28 | |
| OUTER_MARKER | Outer marker. |   | 29 | |
| RUNWAY | Runway waypoint. |   | 30 | |
| RUNWAY_END_COORD | Runway end coordinate. |   | 31 | |
| TRANSITION_ESSENTIAL | Transition-essential waypoint. |   | 32 | |
| UNCHARTED_AIRWAY_INTERSECT | Uncharted airway intersection. |   | 33 | |
| VOR_VORDME_VORTAC | A point along a route where services from a navigation aid providing VOR azimuth, TACAN azimuth, and TACAN distance measuring equipment from one site become available. |   | 34 | |
| WEATHER_MSRMNT_TECHNIQUE | The technique or method of weather measurement. | |||
| AUTOMATED | Measured using manual methods, e.g., visual observation. |   | 11 | |
| MANUAL | Measured using automated methods, e.g., processed from a sensor array. |   | 12 | |
| WEATHER_TYPE | The type of weather reported. | |||
| BLOW_SNOW_VIS_ge1_KM | Blowing or drifting snow or sand; visibility equal to or greater than 1 km. |   | 11 | |
| BLOW_SNOW_VIS_lt1_KM | Blowing or drifting snow or sand; visibility less than 1 km. |   | 12 | |
| BLOWING_SAND | Blowing or drifting sand. |   | 13 | |
| BLOWING_SNOW | Blowing or drifting snow. |   | 14 | |
| BLOWING_SNOW_NOT_HEAVY | Slight or moderate blowing snow generally high (above eye level). |   | 15 | |
| BLOWING_SNOW_OR_SAND | Blowing or drifting snow or sand. May be further delineated specifically as EE BLOWING_SNOW and EE BLOWING_SAND. |   | 16 | |
| CLOUDS_DISSOLVING | Clouds generally dissolving or becoming less developed during the past hour. |   | 17 | |
| CLOUDS_FORMING | Clouds generally forming or developing during the past hour. |   | 18 | |
| CONTINUOUS_SHALLOW_FOG | More or less continuous shallow fog or ice fog at the station, whether on land or sea, not deeper than 2 metres on land or 10 metres at sea |   | 19 | |
| DIAMOND_DUST | Diamond dust. |   | 20 | |
| DISTANT_FOG | Fog or ice fog at a distance at the time of observation, but not at the station during the preceding hour, the fog or ice fog extending to a level above that of the observer. |   | 21 | |
| DISTANT_LIGHTNING | Distant lightning. |   | 22 | |
| DRIFTING_SNOW_NOT_HEAVY | Slight or moderate drifting snow generally low (below eye level). |   | 23 | |
| DRIZZLE | Drizzle. |   | 24 | |
| DRIZZLE_AND_RAIN_MODERATE | Drizzle and rain, moderate or heavy. |   | 25 | |
| DRIZZLE_AND_RAIN_SLIGHT | Slight drizzle and rain, slight. |   | 26 | |
| DRIZZLE_FREEZING_HEAVY | Drizzle, freezing, heavy. |   | 27 | |
| DRIZZLE_FREEZING_MODERATE | Drizzle, freezing, moderate. |   | 28 | |
| DRIZZLE_FREEZING_SLIGHT | Drizzle, freezing, slight. |   | 29 | |
| DRIZZLE_HEAVY_CONTINUOUS | Drizzle, not freezing, continuous, heavy (dense) at time of observation. |   | 30 | |
| DRIZZLE_HEAVY_INTERMITTENT | Drizzle, not freezing, intermittent, heavy (dense) at time of observation. |   | 31 | |
| DRIZZLE_MOD_CONTINUOUS | Drizzle, not freezing, continuous, moderate at time of observation. |   | 32 | |
| DRIZZLE_MOD_INTERMITTENT | Drizzle, not freezing, intermittent, moderate at time of observation. |   | 33 | |
| DRIZZLE_NONFREEZING_HEAVY | Drizzle, not freezing, heavy. |   | 34 | |
| DRIZZLE_NONFREEZING_MODERATE | Drizzle, not freezing, moderate. |   | 35 | |
| DRIZZLE_NONFREEZING_SLIGHT | Drizzle, not freezing, slight. |   | 36 | |
| DRIZZLE_NOT_SLIGHT | Drizzle, freezing, moderate or heavy (dense). |   | 37 | |
| DRIZZLE_PAST_HOUR | Drizzle (not freezing), or snow grains, during the preceding hour, but not at the time of observation. |   | 38 | |
| DRIZZLE_SLIGHT | Drizzle, freezing, slight. |   | 39 | |
| DRIZZLE_SLIGHT_CONTINUOUS | Drizzle, not freezing, continuous, slight at time of observation. |   | 40 | |
| DRIZZLE_SLIGHT_INTERMITTENT | Drizzle, not freezing, intermittent, slight at time of observation. |   | 41 | |
| DUST_SAND_RAISED_BY_WIND | Dust or sand raised by wind at or near the station at the time of observation, but no well developed dust whirls or sand whirls, and no dust storm or sandstorm seen (in the case of ships, blowing spray at the station). |   | 42 | |
| DUST_STORM_IN_SIGHT | Dust storm or sandstorm within sight at the time of observation, or at the station during the preceding hour. |   | 43 | |
| FOG | Fog. |   | 44 | |
| FOG_CONSTANT | Fog or ice fog, no appreciable change during the past hour. |   | 45 | |
| FOG_DEPOSIT_RIME_SKY_INVIS | Fog, at time of observation, depositing rime, sky invisible. |   | 46 | |
| FOG_DEPOSIT_RIME_SKY_VIS | Fog, at time of observation, depositing rime, sky visible |   | 47 | |
| FOG_DEPOSITING_RIME | Fog, depositing rime. |   | 48 | |
| FOG_IN_PATCHES | Fog or ice fog in patches. |   | 49 | |
| FOG_PAST_HOUR_BUT_NOT_NOW | Fog, during preceding hour, but not at the time of observation. |   | 50 | |
| FOG_SKY_INVIS_DECREASING | Fog or ice fog at time of observation, sky invisible, has become thinner during the preceding hour. |   | 51 | |
| FOG_SKY_INVIS_INCREASE | Fog or ice fog at time of observation, sky invisible, has begun or has become thicker during the preceding hour. |   | 52 | |
| FOG_SKY_INVIS_NO_CHANGE | Fog or ice fog at time of observation, sky invisible, no appreciable change during the preceding hour. |   | 53 | |
| FOG_SKY_VIS_DECREASING | Fog or ice fog at time of observation, sky visible, has become thinner during the preceding hour. |   | 54 | |
| FOG_SKY_VIS_INCREASE | Fog or ice fog at time of observation, sky visible, has begun or has become thicker during the preceding hour. |   | 55 | |
| FOG_SKY_VIS_NO_CHANGE | Fog or ice fog at time of observation, sky visible, no appreciable change during the preceding hour. |   | 56 | |
| FOG_THICKENING | Fog or ice fog, has begun or become thicker during the past hour. |   | 57 | |
| FOG_THINNING | Fog or ice fog, has become thinner during the past hour. |   | 58 | |
| FREEZING_PRECIP_HEAVY | Freezing precipitation, heavy. |   | 59 | |
| FREEZING_PRECIP_NO_SHOWER | Freezing drizzle or rain, not falling as showers at the station during the preceding hour, but not at the time of observation. |   | 60 | |
| FREEZING_PRECIP_NOT_HEAVY | Freezing precipitation, slight or moderate. |   | 61 | |
| FREEZING_PRECIP_PAST_HOUR | Freezing drizzle or freezing rain past hour, but not at the time of observation. |   | 62 | |
| FUNNEL_CLOUDS | Funnel clouds (tornado cloud or waterspout) at or in sight of the station during the preceding hour, or at the time of observation. |   | 63 | |
| HAIL_SHOWER | Showers of hail (hail, small hail, snow pellets), or rain and hail (hail, small hail, snow pellets) at the station during the preceding hour, but not at the time of observation. |   | 64 | |
| HAZE_SMOKE_SUSPENDED_DUST | Haze, smoke, or dust in suspension in the air, visibility less than 1 km. |   | 65 | |
| HEAVY_BLOWING_SNOW | Heavy blowing snow generally high (above eye level). |   | 66 | |
| HEAVY_DRIFTING_SNOW | Heavy drifting snow generally low (below eye level). |   | 67 | |
| ICE_PELLETS | Ice pellets, not in showers. |   | 68 | |
| ICE_PELLETS_HEAVY | Precipitation composed of transparent or translucent pellets of ice where there is rapid accumulation on ground. Visibility reduced by ice pellets to less than 4,83 kilometres (approximately 3 statute miles). |   | 69 | |
| ICE_PELLETS_MODERATE | Precipitation composed of transparent or translucent pellets of ice, which have a diameter less than 5 millimetres where there is slow accumulation on ground. Visibility reduced by ice pellets to less than 11,27 kilometres (approximately 7 statute miles). |   | 70 | |
| ICE_PELLETS_SLIGHT | Precipitation composed of transparent or translucent pellets of ice, which have a diameter less than 5 millimetres where scattered pellets do not completely cover an exposed surface regardless of duration. Visibility is not affected. |   | 71 | |
| ISOLATED_SNOW_CRYSTALS | Isolated star like snow crystals, with or without fog. |   | 72 | |
| LIGHTNING_VISIBLE | Lightning visible, no thunder heard. |   | 73 | |
| LIQUID_PRECIP_HEAVY | Liquid precipitation, heavy. |   | 74 | |
| LIQUID_PRECIP_NOT_HEAVY | Liquid precipitation, slight or moderate. |   | 75 | |
| MIST | Mist. |   | 76 | |
| NO_SIGNIFICANT_WEATHER | No significant weather observed. |   | 77 | |
| PATCHES_SHALLOW_FOG | Patches of shallow fog or ice fog at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea. |   | 78 | |
| PATCHY_FOG | Fog or ice fog in patches at time of observation. |   | 79 | |
| PRECIP_DISTANT | Precipitation in sight, reaching the ground or the surface of the sea, but distant (estimated to be no more than 5 km. from station). |   | 80 | |
| PRECIP_HEAVY | Precipitation, heavy. |   | 81 | |
| PRECIP_IN_SIGHT | Precipitation in sight, not reaching the ground or the surface of the sea. |   | 82 | |
| PRECIP_NEAR | Precipitation in sight, reaching the ground or the surface of the sea, near to, but not at the station. |   | 83 | |
| PRECIP_NOT_HEAVY | Precipitation, slight or moderate. |   | 84 | |
| PRECIP_PAST_HOUR | Precipitation, during preceding hour, but not at the time of observation. |   | 85 | |
| PRECIPITATION | Precipitation. |   | 86 | |
| RAIN | Rain. |   | 87 | |
| RAIN_FREEZING_HEAVY | Rain, freezing, heavy. |   | 88 | |
| RAIN_FREEZING_MODERATE | Rain, freezing, moderate. |   | 89 | |
| RAIN_FREEZING_NOT_SLIGHT | Rain, freezing, moderate or heavy. |   | 90 | |
| RAIN_FREEZING_SLIGHT | Rain, freezing, slight. |   | 91 | |
| RAIN_NON_HEAVY_CONTINUOUS | Rain, non-freezing, continuous, heavy at time of observation. |   | 92 | |
| RAIN_NON_HEAVY_INTERMIT | Rain, non-freezing, intermittent, heavy at time of observation. |   | 93 | |
| RAIN_NON_MOD_CONTINUOUS | Rain, non-freezing, continuous, moderate at time of observation. |   | 94 | |
| RAIN_NON_MOD_INTERMIT | Rain, non-freezing, intermittent, moderate at time of observation. |   | 95 | |
| RAIN_NON_SLIGHT_CONTINUOUS | Rain, non-freezing, continuous, slight at time of observation. |   | 96 | |
| RAIN_NON_SLIGHT_INTERMIT | Rain, non-freezing, intermittent, slight at time of observation. |   | 97 | |
| RAIN_NONFREEZING_HEAVY | Rain, not freezing, heavy. |   | 98 | |
| RAIN_NONFREEZING_MODERATE | Rain, not freezing, moderate. |   | 99 | |
| RAIN_NONFREEZING_SLIGHT | Rain, not freezing, slight. |   | 100 | |
| RAIN_NOT_AS_SHOWERS | Rain (not freezing) not falling as showers at the station during the preceding hour, but not at the time of observation. |   | 101 | |
| RAIN_NOW_NOT_SLIGHT | Moderate or heavy rain at time of observation, thunderstorm during the preceding hour but not at time of observation. |   | 102 | |
| RAIN_NOW_SLIGHT | Slight rain at time of observation, thunderstorm during the preceding hour but not at time of observation. |   | 103 | |
| RAIN_PAST_HOUR | Rain (not freezing), during the preceding hour, but not at the time of observation. |   | 104 | |
| RAIN_SHOWER_PAST_HOUR | Showers of rain at the station during the preceding hour, but not at the time of observation. |   | 105 | |
| RAIN_SHOWERS_HEAVY | Rain showers or intermittent rain, heavy. |   | 106 | |
| RAIN_SHOWERS_LIGHT | Rain showers or intermittent rain, slight. |   | 107 | |
| RAIN_SHOWERS_MODERATE | Rain showers or intermittent rain, moderate. |   | 108 | |
| RAIN_SHOWERS_NOT_SLIGHT | Rain showers, moderate or heavy. |   | 109 | |
| RAIN_SHOWERS_VIOLENT | Rain showers or intermittent rain, violent. |   | 110 | |
| RAIN_SNOW_ICE_PELLET | Rain and snow or ice pellets, not falling as showers at the station during the preceding hour, but not at the time of observation. |   | 111 | |
| RAIN_SNOW_MIX_NOT_SLIGHT | Showers of rain and snow mixed, moderate or heavy. |   | 112 | |
| RAIN_SNOW_MIX_SLIGHT | Showers of rain and snow mixed, slight. |   | 113 | |
| RAIN_SNOW_NOT_SLIGHT | Rain or drizzle and snow, moderate or heavy. |   | 114 | |
| RAIN_SNOW_SLIGHT | Rain or drizzle and snow, slight. |   | 115 | |
| SAND_WHIRLS | Well-developed dust whirls or sand whirls seen at or near the station during the preceding hour or at the time of observation, but no dust storm or sandstorm. |   | 116 | |
| SANDSTORM_NOT_SEVERE | Slight or moderate dust storm or sand storm no appreciable change during the preceding hour. |   | 117 | |
| SANDSTORM_NOT_SEVERE_BEGUN | Slight or moderate dust storm or sand storm has begun or has increased during the preceding hour. |   | 118 | |
| SANDSTORM_NOT_SEVERE_DEC | Slight or moderate dust storm or sand storm has decreased during the preceding hour. |   | 119 | |
| SANDSTORM_SEVERE | Severe dust storm or sand storm no appreciable change during the preceding hour. |   | 120 | |
| SANDSTORM_SEVERE_BEGUN | Severe dust storm or sand storm has begun or has increased during the preceding hour. |   | 121 | |
| SANDSTORM_SEVERE_DEC | Severe dust storm or sand storm has decreased during the preceding hour. |   | 122 | |
| SHOWERS | Showers or intermittent precipitation. |   | 123 | |
| SHOWERS_HAIL_NOT_SLIGHT | Showers of hail (hail, small hail, snow pellets), with or without rain or rain and snow mixed, not associated with thunder, moderate or heavy. |   | 124 | |
| SHOWERS_HAIL_SLIGHT | Showers of hail, slight. |   | 125 | |
| SHOWERS_SNOW_PELLETS_MOD | Showers of snow pellets or small hail, with or without rain or rain and snow mixed, moderate or heavy. |   | 126 | |
| SHOWERS_SNOW_PELLETS_SL | Showers of snow pellets or small hail, with or without rain or rain and snow mixed, slight. |   | 127 | |
| SKY_GENERALLY_UNCHANGED | State of sky overall unchanged during the past hour. |   | 128 | |
| SKY_UNCHANGED | State of sky on the whole unchanged. |   | 129 | |
| SMOKE | Smoke. |   | 130 | |
| SNOW | Snow, rate undetermined. |   | 131 | |
| SNOW_GRAINS | Snow grains, with or without fog. |   | 132 | |
| SNOW_HEAVY | Snow, heavy. |   | 133 | |
| SNOW_MODERATE | Snow, moderate. |   | 134 | |
| SNOW_NOT_AS_SHOWERS | Snow, not falling as showers at the station during the preceding hour, but not at the time of observation. |   | 135 | |
| SNOW_NOT_HEAVY_CONTINUOUS | Continuous fall of snowflakes, not in showers, heavy at time of observation. |   | 136 | |
| SNOW_NOT_HEAVY_INTERMIT | Intermittent fall of snowflakes, not in showers, heavy at time of observation. |   | 137 | |
| SNOW_NOT_MOD_CONTINUOUS | Continuous fall of snowflakes, not in showers, moderate at time of observation. |   | 138 | |
| SNOW_NOT_MOD_INTERMIT | Intermittent fall of snowflakes, not in showers, moderate at time of observation. |   | 139 | |
| SNOW_NOT_SL_CONTINUOUS | Continuous fall of snowflakes, not in showers, slight at time of observation. |   | 140 | |
| SNOW_NOT_SL_INTERMIT | Intermittent fall of snowflakes, not in showers, slight at time of observation. |   | 141 | |
| SNOW_NOW_NOT_SLIGHT | Moderate or heavy snow, or rain and snow mixed, or hail (hail, small hail, snow pellets), at time of observation, thunderstorm during the preceding hour but not at time of observation. |   | 142 | |
| SNOW_NOW_SLIGHT | Slight snow, or rain and snow mixed, or hail (hail, small hail, snow pellets), at time of observation, thunderstorm during the preceding hour but not at time of observation. |   | 143 | |
| SNOW_PAST_HOUR | Snow, during the preceding hour, but not at the time of observation. |   | 144 | |
| SNOW_SHOWER_PAST_HOUR | Showers of snow, or of rain and snow at the station during the preceding hour, but not at the time of observation. |   | 145 | |
| SNOW_SHOWERS_HEAVY | Snow showers or intermittent rain, heavy. |   | 146 | |
| SNOW_SHOWERS_MODERATE | Snow showers or intermittent rain, moderate. |   | 147 | |
| SNOW_SHOWERS_NOT_SLIGHT | Snow showers, moderate or heavy |   | 148 | |
| SNOW_SHOWERS_SLIGHT | Snow showers or intermittent rain, slight. |   | 149 | |
| SNOW_SLIGHT | Snow, slight. |   | 150 | |
| SOLID_PRECIP_HEAVY | Solid precipitation, heavy. |   | 151 | |
| SOLID_PRECIP_NOT_HEAVY | Solid precipitation, slight or moderate. |   | 152 | |
| SQUALLS | Squalls at or in sight of the station during the preceding hour or at the time of observation. |   | 153 | |
| TORNADO | Tornado. |   | 154 | |
| TSTORM | Thunderstorm. |   | 155 | |
| TSTORM_HAIL_HEAVY | Thunderstorm, heavy, with hail (hail, small hail, snow pellets) at time of observation, thunderstorm at time of observation. |   | 156 | |
| TSTORM_HAIL_NOT_HEAVY | Thunderstorm, slight or moderate, with hail (hail, small hail, snow pellets) at time of observation, thunderstorm at time of observation. |   | 157 | |
| TSTORM_HEAVY | Thunderstorm, heavy, with no precipitation. |   | 158 | |
| TSTORM_NO_HAIL_HEAVY | Thunderstorm, heavy, without hail (hail, small hail, snow pellets), but with rain and/or snow at time of observation, thunderstorm at time of observation. |   | 159 | |
| TSTORM_NO_HAIL_NOT_HEAVY | Thunderstorm, slight or moderate, without hail (hail, small hail, snow pellets), but with rain and/or snow at time of observation, thunderstorm at time of observation. |   | 160 | |
| TSTORM_NO_PRECIP | Thunderstorm, but no precipitation at the time of observation. |   | 161 | |
| TSTORM_NOT_HEAVY | Thunderstorm, slight or moderate, with no precipitation. |   | 162 | |
| TSTORM_PAST_HOUR | Thunderstorm (with or without precipitation) at the station during the preceding hour, but not at the time of observation. |   | 163 | |
| TSTORM_PLUS_SANDSTORM | Thunderstorm combined with dust storm or sand storm at time of observation, thunderstorm at time of observation. |   | 164 | |
| TSTORM_RAIN_HEAVY | Thunderstorm, heavy, with rain showers and/or snow. |   | 165 | |
| TSTORM_RAIN_NOT_HEAVY | Thunderstorm, slight or moderate, with rain showers and/or snow showers. |   | 166 | |
| VIS_REDUCED_BY_SMOKE | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke, or volcanic ashes. |   | 167 | |
| WIDESPREAD_DUST_SUSPEND | Widespread dust in suspension in the air not raised by wind, at or near station at the time of observation. |   | 168 | |
| WELL_TYPE | The type of a well. | |||
| ARTESIAN | A well that taps into water that is confined in an artesian aquifer. |   | 11 | |
| DRILLED | A well created by a specialized power-drilling apparatus used to tap very deep groundwater reservoirs. |   | 12 | |
| DUG | A shallow well created through a (generally manual) process of digging. |   | 13 | |
| DUG_OR_DRILLED | A well that is created by either digging or drilling. May be further delineated specifically as EE DUG and EE DRILLED. |   | 14 | |
| FOUNTAIN |   | 15 | ||
| WALLED_IN | A well confined by walls. |   | 16 | |
| WATER_HOLE | A small natural depression into which water collects, especially a small pool used by animals as a watering place. |   | 17 | |
| WET_SOIL_TRAFFICABILITY | The USCS soil type further categorized by their wet weather trafficability characteristics. | |||
| A | A : Any of GW, GP, SW, and SP. |   | 11 | |
| B | B: CH. |   | 12 | |
| C | C: Any of GC, SC, and CL. |   | 13 | |
| D | D: Any of GM, SM, ML, ML-CL, MH, OL, and OH. |   | 14 | |
| E | E: PT. |   | 15 | |
| X | X: Not evaluated. |   | 16 | |
| WETLAND_SURFACE_FORM | The surface landform of a wetland. | |||
| ATLANTIC_PLATEAU_BOG | A bog with a flat to undulating surface raised above the surrounding terrain. The bog edges commonly slope steeply downwards to the mineral soil terrain. Large pools scattered on the bog reach depths of 2 to 4 metres. |   | 11 | |
| BASIN_BOG | A bog situated in a basin with essentially closed drainage which receives water from precipitation and runoff from the immediate surroundings. The surface of the bog is flat with peat generally deepest at the centre. |   | 12 | |
| BASIN_SWAMP | A swamp developed in a topographically defined basin where water derived locally may be augmented by drainage from other parts of the watershed. Accumulation of well-decomposed peat is shallow (< 0,5 metre ) at the edge but may reach 2 metres at the centre. |   | 13 | |
| BLANKET_BOG | A bog consisting of extensive peat deposits that occur more or less uniformly over gently sloping hills and valleys. |   | 14 | |
| DOMED_BOG | A large bog (diameter usually > 500 metres) with a convex surface rising several metres above the surrounding terrain. The centre usually drains in all directions; small crescentic pools commonly form around the highest point; a concentric pattern is formed if the highest point is in the centre, while an eccentric pattern is formed if the highest point is off-centre. Peat development is usually > 3 metres. |   | 15 | |
| FLAT_BOG | A bog having a flat, featureless surface and occurring in broad, poorly defined depressions. The depth of peat is generally uniform. |   | 16 | |
| HORIZONTAL_FEN | A fen with a gently sloping, featureless surface. This fen occupies broad, often ill-defined depressions and may interconnect with other fens. Peat accumulation is generally uniform. |   | 17 | |
| LOWLAND_POLYGON_BOG | A bog with flat-topped or convex peat surfaces (often referred to as "high-centre polygons") separated by trenches over ice wedges that form a polygonal pattern when viewed from above. The peat was deposited in a permafrost environment as shown by internal structures. |   | 18 | |
| NORTHERN_RIBBED_FEN | A fen with parallel, low peat ridges ("strings") alternating with wet hollows or shallow pools, oriented across the major slope at right angles to water movement. The depth of peat is > 1 metre. |   | 19 | |
| PALSA_BOG | Palsa bog is a type of peat bog with an ice core, formed adjacent to a mound of soil that was pushed up by or formed near the edge of a glacier; found in alpine and arctic regions. |   | 20 | |
| PEAT_PLATEAU_BOG | A bog composed of perennially frozen peat rising abruptly about 1 metre from the surrounding unfrozen fen. The surface is relatively flat and even, and commonly covers large areas. The peat was originally deposited in a non-permafrost environment and is associated in many places with collapse scar bogs or fens. |   | 21 | |
| POLYGONAL_PEAT_PLATEAU_BOG | A perennially frozen bog rising approximately 1 metre above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a non-permafrost environment. |   | 22 | |
| SHALLOW_BASIN | A marsh occurring in a uniformly shallow marsh depression or swale, having a gradual gradient from the edge to the deepest portion; the marsh edge may be poorly defined. Water levels fluctuate rapidly. |   | 23 | |
| SHORE_FEN | A fen with an anchored surface mat that forms the shore of a pond or lake. The rooting zone is affected by the water of the lake at both normal and flood levels. |   | 24 | |
| SHORE_MARSH | A marsh occupying the contact zone between high and low water marks bordering semi-permanent or permanent lakes. The marsh, usually found along protected shorelines, behind barrier beaches in lagoons, on islands, or in embayments, is subject to flooding by a rise in lake levels, wind waves, or surface runoff. |   | 25 | |
| SLOPE_BOG | A bog occurring in areas of high rainfall on appreciably sloping land surfaces. The bog is fed by rainwater and by water draining from other nutrient-poor peat lands. The peat may exceed 1 metre in thickness. |   | 26 | |
| SLOPE_FEN | A fen occurring mainly on slow-draining, nutrient-enriched seepage slopes. Pools are usually thickness is usually < 2 metres. |   | 27 | |
| STREAM_MARSH | A marsh occupying shorelines, bars, stream beds, or islands in continuously flowing marsh is subject to prolonged annual flooding and is commonly covered by thick layers of sediments. |   | 28 | |
| STREAM_SWAMP | A swamp occurring along the banks of permanent or semi-permanent streams. The high water table is maintained by the level of water in the stream. The swamp is seasonally inundated with subsequent sediment deposition. |   | 29 | |
| STRING_BOG | A pattern of narrow (2 to 3 metres wide), low (< 1 metre high) ridges oriented at right angles to the direction of drainage; wet depressions or pools occur between the ridges. The water and peat are very low in nutrients because the water has been derived from other ombrotrophic wetlands. The peat thickness is > 1 metre. |   | 30 | |
| VENEER_BOG | A bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drain ways during peak runoff. Peat thickness is usually < 1,5 metres. |   | 31 | |
| WIND_CORRECTION_TECHNIQUE | The type of wind correction technique that was applied to a rocket sounding. | |||
| JAPAN | Japan standard technique. |   | 11 | |
| NONE_APPLIED | No corrections were applied to the observation. |   | 12 | |
| UK | UK standard technique. |   | 13 | |
| US | US standard technique. |   | 14 | |
| WIND_DIRECTION_OCTANT_CLIM | The historical cardinal wind vector octant (a 45 arc degree sector centred on a cardinal direction). | |||
| N | North. |   | 11 | |
| NE | Northeast. |   | 12 | |
| E | East. |   | 13 | |
| SE | Southeast. |   | 14 | |
| S | South. |   | 15 | |
| SW | Southwest. |   | 16 | |
| W | West |   | 17 | |
| NW | Northwest. |   | 18 | |
| WIND_DIRECTION_QUALITY | The quality status of a wind direction. | |||
| ERRONEOUS | The original observation was in error. |   | 11 | |
| GOOD | The quality of the observation was acceptable. |   | 12 | |
| NO_CHECK | No check on the quality of the observation was performed. |   | 13 | |
| SUSPECT | The original observation may be in error. |   | 14 | |
| WIND_EQUIPMENT_TYPE | The type of measuring equipment used for a wind observation. | |||
| LORAN_C | A Loran C device was used in measuring winds information. For example, some radiosondes use Loran C for positional information from which winds information is derived. |   | 11 | |
| OPTICAL_THEODOLITE | An optical theodolite was used to track balloon positions from which winds information was derived. |   | 12 | |
| PRESSURE_WITH_WIND | Pressure instrument associated with wind-measuring equipment. |   | 13 | |
| PRESSURE_WITH_WIND_FAILED | Pressure instrument associated with wind-measuring equipment, but pressure element failed during ascent. |   | 14 | |
| RADAR_EQUIPMENT | Radar equipment was used in measuring winds information. |   | 15 | |
| RADIO_THEODOLITE | A radio theodolite was used to track balloon positions from which winds information was derived. |   | 16 | |
| SATELLITE_NAVIGATION | Satellite navigation was used in deriving winds information. |   | 17 | |
| VLF_OMEGA | A VLF OMEGA device was used in measuring winds information. For example, some radiosondes use VLF OMEGA for positional information from which winds information is derived. |   | 18 | |
| WIND_PROFILER | A wind profiler was used to measure winds information. |   | 19 | |
| WIND_SPEED_QUALITY | The quality status of a wind speed. | |||
| ERRONEOUS | The original observation was in error. |   | 11 | |
| GOOD | The quality of the observation was acceptable. |   | 12 | |
| NO_CHECK | No check on the quality of the observation was performed. |   | 13 | |
| SUSPECT | The original observation may be in error. |   | 14 | |
| WIND_TYPE | The character of the winds. | |||
| CALM | Wind speeds are less than 9,260 kilometres (five nautical miles) per hour. |   | 11 | |
| NORMAL |   | 12 | ||
| SQUALL | A strong wind characterized by a sudden onset in which the wind speed increases at least 29,632 kilometres (16 nautical miles) per hour and is sustained at 40,744 kilometres (22 nautical miles) per hour or more for at least one minute. |   | 13 | |
| VARIABLE |   | 14 | ||
| WINTER_CANOPY_COVER_RANGE | A range indicating the fraction of winter canopy closure within the delineated object's extent. | |||
| SPARSE | <= 25%. |   | 11 | |
| MEDIUM | > 25% and <= 50%. |   | 12 | |
| DENSE | > 50% and <= 75%. |   | 13 | |
| VERY_DENSE | > 75%. |   | 14 | |
| WOODY_VEG_DENSITY_RANGE | A range indicating the fraction of total ground surface covered by woody vegetation (e.g., trees, scrub, brush or bush) within the delineated object extents. | |||
| OPEN | > 0% and <= 5%. |   | 11 | |
| SPARSE | > 5% and <= 15%. |   | 12 | |
| MEDIUM | > 15%. |   | 13 | |
| WORK_IN_PROGRESS_TYPE | The type of work in progress. | |||
| LAND_RECLAMATION |   | 11 | ||
| STRUCTURE_CONSTRUCTION | Construction of structures. |   | 12 | |
| WORSHIP_HOUSE_TYPE | The type of a house of worship. | |||
| ANY |   | 11 | ||
| CATHEDRAL |   | 12 | ||
| CHAPEL |   | 13 | ||
| CHURCH | A building for public, especially Christian, worship. | EC CHURCH | 14 | |
| CONVENT |   | 15 | ||
| MARABOUT |   | 16 | ||
| MINARET |   | 17 | ||
| MONASTERY |   | 18 | ||
| MONASTERY_OR_CONVENT | May be further delineated specifically as EE MONASTERY and EE CONVENT. |   | 19 | |
| MOSQUE |   | 20 | ||
| PAGODA |   | 21 | ||
| SHRINE |   | 22 | ||
| STUPA |   | 23 | ||
| SYNAGOGUE |   | 24 | ||
| TABERNACLE |   | 25 | ||
| TEMPLE |   | 26 | ||
| WRECK_STATUS | The status of a wreck. | |||
| DANGEROUS | Dangerous wreck. |   | 11 | |
| NON_DANGEROUS | Non-dangerous wreck. |   | 12 | |
| REMAINS | Remains of wreck or foul ground. |   | 13 | |
| SHOWING_HULL | Wreck showing any portion of hull or superstructure. |   | 14 | |
| SHOWING_MAST | Wreck showing masts. |   | 15 | |
| WRECK_TYPE | The type of wreck as listed in a non-submarine contacts list; a non-submarine contact is any object, wreck, or other object on the sea floor that could be mistakenly identified as an operable submarine when detected with acoustic or magnetic sensors. | |||
| AIRCRAFT | Vehicle that travels within an atmosphere. |   | 11 | |
| AIRCRAFT_CARRIER |   | 12 | ||
| ANOMALIES |   | 13 | ||
| AUXILIARY |   | 14 | ||
| BARGE |   | 15 | ||
| BATTLESHIP |   | 16 | ||
| BULK_CARRIER |   | 17 | ||
| BUOY |   | 18 | ||
| CAISSON |   | 19 | ||
| CARGO |   | 20 | ||
| COASTER |   | 21 | ||
| CRUISER |   | 22 | ||
| DESTROYER_OR_CORVETTE | Destroyer, destroyer escort or corvette. |   | 23 | |
| DREDGE |   | 24 | ||
| DRILL_VESSEL_OR_RIG | Drill vessel or drill rig. |   | 25 | |
| EXPLOSIVES |   | 26 | ||
| FERRY |   | 27 | ||
| FISHING_REEF |   | 28 | ||
| FISHING_VESSEL |   | 29 | ||
| FRIGATE |   | 30 | ||
| GAS_CARRIER | Gas carrier (natural petroleum). |   | 31 | |
| GUNBOAT |   | 32 | ||
| HOSPITAL_SHIP |   | 33 | ||
| HYDRO_SURVEY_OR_HYDROFOIL | Hydrographic survey, air cushion, or hydrofoil. |   | 34 | |
| JUNK |   | 35 | ||
| LANDING_CRAFT_INFANTRY |   | 36 | ||
| LANDING_SHIP_INFANTRY |   | 37 | ||
| LANDING_SHIP_TANK |   | 38 | ||
| LASH_VESSEL |   | 39 | ||
| LIGHTSHIP |   | 40 | ||
| MINESWEEPER_OR_MINELAYER | Minesweeper or minelayer. |   | 41 | |
| NET_TENDER |   | 42 | ||
| OBSTRUCTION |   | 43 | ||
| PASSENGER_CARGO |   | 44 | ||
| PATROL_BOAT |   | 45 | ||
| PINNACLE_ROCK |   | 46 | ||
| RO_RO | Roll-on, roll-off container ship. |   | 47 | |
| SAILING_SHIP |   | 48 | ||
| SEA_BEE_LASH_BARGE |   | 49 | ||
| SHIP_DEBRIS | Plates and miscellaneous metal. |   | 50 | |
| SUBCHASER |   | 51 | ||
| SUBMARINE |   | 52 | ||
| SUBMARINE_FLOAT |   | 53 | ||
| SURVEY_VESSEL |   | 54 | ||
| TANKER |   | 55 | ||
| TARGET |   | 56 | ||
| TENDER_SUB_PLANE_RIG | Tender, submarine, airplane, or oilrig. |   | 57 | |
| TORPEDO_BOAT |   | 58 | ||
| TRANSPORT |   | 59 | ||
| TRAWLER |   | 60 | ||
| TUG |   | 61 | ||
| VERY_LARGE_CONTAINER |   | 62 | ||
| WELL_HEAD |   | 63 | ||
| YACHT |   | 64 |