{"Metadata":{"ServiceProvider":"navapi.com","ApiMainService":"Weather","ApiSubService":"List-WeatherVariables","ApiVersion":"v2","ResultCode":"200","ResultMessage":"Success","NumberOfResults":72,"UsedTokens":0.01},"WeatherVariables":[{"VariableName":"GFS_4LFTX_atm","Model":"gfs","Level":"Entire Atmosphere","Unit":"K","Description":"Best (4 layer) Lifted Index (K). Stability index from lifted parcel vs environment; positive = stable, negative = unstable; thresholds indicate thunderstorm likelihood.","IconUrl":"https://weather.navapi.cc/GFS_4LFTX_atm.svg"},{"VariableName":"GFS_CAPE_atm","Model":"gfs","Level":"Entire Atmosphere","Unit":"J/kg","Description":"Convective Available Potential Energy (J/kg). Buoyant energy available to rising parcels through the atmosphere; higher values imply stronger convection.","IconUrl":"https://weather.navapi.cc/GFS_CAPE_atm.svg"},{"VariableName":"GFS_DPT_2m","Model":"gfs","Level":"2 m Above Surface","Unit":"°C","Description":"Dew point temperature (°C) at 2 m above ground; temperature where air becomes saturated and condensation begins.","IconUrl":"https://weather.navapi.cc/GFS_DPT_2m.svg"},{"VariableName":"GFS_GUST_10m","Model":"gfs","Level":"10 m Above Surface","Unit":"m/s","Description":"Maximum short-term wind gust (m/s) at 10 m above ground.","IconUrl":"https://weather.navapi.cc/GFS_GUST_10m.svg"},{"VariableName":"GFS_HCDC_atm","Model":"gfs","Level":"Entire Atmosphere (High Layer Focus)","Unit":"%","Description":"High cloud cover (%) representing fraction of sky covered by clouds above ~15,000 ft (≈4572 m).","IconUrl":"https://weather.navapi.cc/GFS_HCDC_atm.svg"},{"VariableName":"GFS_HINDEX_atm","Model":"gfs","Level":"Entire Atmosphere (Lower Troposphere Focus)","Unit":"2=low/6=high","Description":"Haines Index (unitless, 2–6). Fire weather index for potential fire growth based on stability and dryness.","IconUrl":"https://weather.navapi.cc/GFS_HINDEX_atm.svg"},{"VariableName":"GFS_LCDC_atm","Model":"gfs","Level":"Entire Atmosphere (Low Layer Focus)","Unit":"%","Description":"Low cloud cover (%) representing fraction below ~7,000 ft (≈2134 m).","IconUrl":"https://weather.navapi.cc/GFS_LCDC_atm.svg"},{"VariableName":"GFS_MCDC_atm","Model":"gfs","Level":"Entire Atmosphere (Mid Layer Focus)","Unit":"%","Description":"Middle cloud cover (%) representing fraction ~7,000–15,000 ft (≈2134–4572 m).","IconUrl":"https://weather.navapi.cc/GFS_MCDC_atm.svg"},{"VariableName":"GFS_PRMSL_msl","Model":"gfs","Level":"Mean Sea Level","Unit":"hPa","Description":"Pressure reduced to mean sea level (hPa); comparable across locations regardless of elevation.","IconUrl":"https://weather.navapi.cc/GFS_PRMSL_msl.svg"},{"VariableName":"GFS_RH_2m","Model":"gfs","Level":"2 m Above Surface","Unit":"%","Description":"Relative humidity (%) at 2 m above ground.","IconUrl":"https://weather.navapi.cc/GFS_RH_2m.svg"},{"VariableName":"GFS_TCDC_atm","Model":"gfs","Level":"Entire Atmosphere","Unit":"%","Description":"Total cloud cover (%) across all cloud layers.","IconUrl":"https://weather.navapi.cc/GFS_TCDC_atm.svg"},{"VariableName":"GFS_TMP_2m","Model":"gfs","Level":"2 m Above Surface","Unit":"°C","Description":"Air temperature (°C) at 2 m above ground.","IconUrl":"https://weather.navapi.cc/GFS_TMP_2m.svg"},{"VariableName":"GFS_UGRD_10m","Model":"gfs","Level":"10 m Above Surface","Unit":"m/s","Description":"U-component of wind (m/s) at 10 m above ground; positive indicates eastward flow.","IconUrl":"https://weather.navapi.cc/GFS_UGRD_10m.svg"},{"VariableName":"GFS_VGRD_10m","Model":"gfs","Level":"10 m Above Surface","Unit":"m/s","Description":"V-component of wind (m/s) at 10 m above ground; positive indicates northward flow.","IconUrl":"https://weather.navapi.cc/GFS_VGRD_10m.svg"},{"VariableName":"GFSWAVE_UGRD_10m","Model":"gfswave","Level":"10 m Above Surface","Unit":"m/s","Description":"U-component of surface wind (m/s) at 10 m driving waves; positive is eastward.","IconUrl":"https://weather.navapi.cc/GFSWAVE_UGRD_10m.svg"},{"VariableName":"GFSWAVE_VGRD_10m","Model":"gfswave","Level":"10 m Above Surface","Unit":"m/s","Description":"V-component of surface wind (m/s) at 10 m driving waves; positive is northward.","IconUrl":"https://weather.navapi.cc/GFSWAVE_VGRD_10m.svg"},{"VariableName":"GFSWAVE_WDIR_10m","Model":"gfswave","Level":"10 m Above Surface","Unit":"°","Description":"Wind direction (°) at 10 m; compass direction from which the wind blows.","IconUrl":"https://weather.navapi.cc/GFSWAVE_WDIR_10m.svg"},{"VariableName":"GFSWAVE_WIND_10m","Model":"gfswave","Level":"10 m Above Surface","Unit":"m/s","Description":"Wind speed (m/s) at 10 m above the sea surface.","IconUrl":"https://weather.navapi.cc/GFSWAVE_WIND_10m.svg"},{"VariableName":"GFS_APTMP_2m","Model":"gfs","Level":"2 m Above Surface","Unit":"°C","Description":"Apparent ('feels like') temperature (°C) combining wind, humidity, and radiation effects at the surface.","IconUrl":"https://weather.navapi.cc/GFS_APTMP_2m.svg"},{"VariableName":"GFS_CFRZR_0m","Model":"gfs","Level":"Surface","Unit":"boolean (0/1)","Description":"Categorical freezing rain at the surface (boolean); 1 indicates freezing rain present.","IconUrl":"https://weather.navapi.cc/GFS_CFRZR_0m.svg"},{"VariableName":"GFS_CICEP_0m","Model":"gfs","Level":"Surface","Unit":"boolean (0/1)","Description":"Categorical ice pellets/sleet at the surface (boolean); 1 indicates sleet present.","IconUrl":"https://weather.navapi.cc/GFS_CICEP_0m.svg"},{"VariableName":"GFS_CRAIN_0m","Model":"gfs","Level":"Surface","Unit":"boolean (0/1)","Description":"Categorical rain at the surface (boolean); 1 indicates rain present.","IconUrl":"https://weather.navapi.cc/GFS_CRAIN_0m.svg"},{"VariableName":"GFS_CSNOW_0m","Model":"gfs","Level":"Surface","Unit":"boolean (0/1)","Description":"Categorical snow at the surface (boolean); 1 indicates snow present.","IconUrl":"https://weather.navapi.cc/GFS_CSNOW_0m.svg"},{"VariableName":"GFS_DLWRF_0m","Model":"gfs","Level":"Surface","Unit":"W/m²","Description":"Downward long-wave radiation flux (W/m²) reaching the surface from the atmosphere above.","IconUrl":"https://weather.navapi.cc/GFS_DLWRF_0m.svg"},{"VariableName":"GFS_DSWRF_0m","Model":"gfs","Level":"Surface","Unit":"W/m²","Description":"Downward short-wave (solar) radiation flux (W/m²) reaching the surface, including direct and diffuse sunlight.","IconUrl":"https://weather.navapi.cc/GFS_DSWRF_0m.svg"},{"VariableName":"GFS_ICEC_0m","Model":"gfs","Level":"Surface","Unit":"%","Description":"Ice cover (%) indicating fraction of the surface covered by ice.","IconUrl":"https://weather.navapi.cc/GFS_ICEC_0m.svg"},{"VariableName":"GFS_PRATE_0m","Model":"gfs","Level":"Surface","Unit":"mm/h","Description":"Precipitation rate (mm/h) at the surface (instantaneous intensity).","IconUrl":"https://weather.navapi.cc/GFS_PRATE_0m.svg"},{"VariableName":"GFS_SOILW_0.4-1m","Model":"gfs","Level":"0.4–1 m Below Surface","Unit":"%","Description":"Volumetric soil moisture content (%) at 0.4–1 m depth.","IconUrl":"https://weather.navapi.cc/GFS_SOILW_0.4-1m.svg"},{"VariableName":"GFS_SNOD_0m","Model":"gfs","Level":"Surface","Unit":"m","Description":"Snow depth (m) at the surface.","IconUrl":"https://weather.navapi.cc/GFS_SNOD_0m.svg"},{"VariableName":"GFS_ICEG_10m","Model":"gfs","Level":"Surface","Unit":"mm/h","Description":"Ice growth rate (mm/h) on exposed surfaces; relevant for maritime/aviation icing risk.","IconUrl":"https://weather.navapi.cc/GFS_ICEG_10m.svg"},{"VariableName":"GFS_ICETK_0m","Model":"gfs","Level":"Surface","Unit":"m","Description":"Ice thickness (m) of the surface ice layer.","IconUrl":"https://weather.navapi.cc/GFS_ICETK_0m.svg"},{"VariableName":"GFS_ICETMP_0m","Model":"gfs","Level":"Surface","Unit":"°C","Description":"Ice temperature (°C) at the surface.","IconUrl":"https://weather.navapi.cc/GFS_ICETMP_0m.svg"},{"VariableName":"GFS_LAND_0m","Model":"gfs","Level":"Surface","Unit":"boolean (0/1)","Description":"Land–sea mask (boolean); 1 = land, 0 = sea at the surface.","IconUrl":"https://weather.navapi.cc/GFS_LAND_0m.svg"},{"VariableName":"GFS_SOILW_0-0.1m","Model":"gfs","Level":"0–0.1 m Below Surface","Unit":"%","Description":"Volumetric soil moisture content (%) at 0–0.1 m depth.","IconUrl":"https://weather.navapi.cc/GFS_SOILW_0-0.1m.svg"},{"VariableName":"GFS_SOILW_0.1-0.4m","Model":"gfs","Level":"0.1–0.4 m Below Surface","Unit":"%","Description":"Volumetric soil moisture content (%) at 0.1–0.4 m depth.","IconUrl":"https://weather.navapi.cc/GFS_SOILW_0.1-0.4m.svg"},{"VariableName":"GFS_SOILW_1-2m","Model":"gfs","Level":"1–2 m Below Surface","Unit":"%","Description":"Volumetric soil moisture content (%) at 1–2 m depth.","IconUrl":"https://weather.navapi.cc/GFS_SOILW_1-2m.svg"},{"VariableName":"GFS_SOTYP_0m","Model":"gfs","Level":"Surface","Unit":"categorical","Description":"Soil type (categorical) at the surface.","IconUrl":"https://weather.navapi.cc/GFS_SOTYP_0m.svg"},{"VariableName":"GFS_SUNSD_0m","Model":"gfs","Level":"Surface","Unit":"h","Description":"Sunshine duration (h) accumulated at the surface.","IconUrl":"https://weather.navapi.cc/GFS_SUNSD_0m.svg"},{"VariableName":"GFS_TSOIL_0-0.1m","Model":"gfs","Level":"0–0.1 m Below Surface","Unit":"°C","Description":"Soil temperature (°C) at 0–0.1 m depth.","IconUrl":"https://weather.navapi.cc/GFS_TSOIL_0-0.1m.svg"},{"VariableName":"GFS_TSOIL_0.1-0.4m","Model":"gfs","Level":"0.1–0.4 m Below Surface","Unit":"°C","Description":"Soil temperature (°C) at 0.1–0.4 m depth.","IconUrl":"https://weather.navapi.cc/GFS_TSOIL_0.1-0.4m.svg"},{"VariableName":"GFS_TSOIL_0.4-1m","Model":"gfs","Level":"0.4–1 m Below Surface","Unit":"°C","Description":"Soil temperature (°C) at 0.4–1 m depth.","IconUrl":"https://weather.navapi.cc/GFS_TSOIL_0.4-1m.svg"},{"VariableName":"GFS_TSOIL_1-2m","Model":"gfs","Level":"1–2 m Below Surface","Unit":"°C","Description":"Soil temperature (°C) at 1–2 m depth.","IconUrl":"https://weather.navapi.cc/GFS_TSOIL_1-2m.svg"},{"VariableName":"GFS_VEG_0m","Model":"gfs","Level":"Surface","Unit":"%","Description":"Vegetation cover (%) of the surface.","IconUrl":"https://weather.navapi.cc/GFS_VEG_0m.svg"},{"VariableName":"GFS_ULWRF_0m","Model":"gfs","Level":"Surface","Unit":"W/m²","Description":"Upward long-wave radiation flux (W/m²) emitted from the surface to the atmosphere.","IconUrl":"https://weather.navapi.cc/GFS_ULWRF_0m.svg"},{"VariableName":"GFS_USWRF_0m","Model":"gfs","Level":"Surface","Unit":"W/m²","Description":"Upward short-wave radiation flux (W/m²) reflected/scattered from the surface to the atmosphere.","IconUrl":"https://weather.navapi.cc/GFS_USWRF_0m.svg"},{"VariableName":"GFS_VIS_0m","Model":"gfs","Level":"Surface","Unit":"m","Description":"Horizontal visibility (m) at the surface; maximum distance objects can be clearly discerned.","IconUrl":"https://weather.navapi.cc/GFS_VIS_0m.svg"},{"VariableName":"GFSWAVE_DIRPW_0m","Model":"gfswave","Level":"Sea Surface","Unit":"°","Description":"Primary (most energetic) wave direction (°); compass direction from which the primary waves arrive.","IconUrl":"https://weather.navapi.cc/GFSWAVE_DIRPW_0m.svg"},{"VariableName":"GFSWAVE_HTSGW_0m","Model":"gfswave","Level":"Sea Surface","Unit":"m","Description":"Significant height of combined wind waves and swell (m); average height of highest one-third.","IconUrl":"https://weather.navapi.cc/GFSWAVE_HTSGW_0m.svg"},{"VariableName":"GFSWAVE_SWDIR_0m-1","Model":"gfswave","Level":"Sea Surface (Partition 1)","Unit":"°","Description":"Swell wave direction (°), partition 1 (first swell train); compass direction from which swell arrives.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWDIR_0m-1.svg"},{"VariableName":"GFSWAVE_SWDIR_0m-2","Model":"gfswave","Level":"Sea Surface (Partition 2)","Unit":"°","Description":"Swell wave direction (°), partition 2 (second swell train).","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWDIR_0m-2.svg"},{"VariableName":"GFSWAVE_SWDIR_0m-3","Model":"gfswave","Level":"Sea Surface (Partition 3)","Unit":"°","Description":"Swell wave direction (°), partition 3 (third swell train).","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWDIR_0m-3.svg"},{"VariableName":"GFSWAVE_SWELL_0m-1","Model":"gfswave","Level":"Sea Surface (Partition 1)","Unit":"m","Description":"Significant swell height (m), partition 1; average height of highest one-third of swell waves.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWELL_0m-1.svg"},{"VariableName":"GFSWAVE_SWELL_0m-2","Model":"gfswave","Level":"Sea Surface (Partition 2)","Unit":"m","Description":"Significant swell height (m), partition 2.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWELL_0m-2.svg"},{"VariableName":"GFSWAVE_SWELL_0m-3","Model":"gfswave","Level":"Sea Surface (Partition 3)","Unit":"m","Description":"Significant swell height (m), partition 3.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWELL_0m-3.svg"},{"VariableName":"GFSWAVE_SWPER_0m-1","Model":"gfswave","Level":"Sea Surface (Partition 1)","Unit":"s","Description":"Swell wave mean period (s), partition 1; average time between swell waves.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWPER_0m-1.svg"},{"VariableName":"GFSWAVE_SWPER_0m-2","Model":"gfswave","Level":"Sea Surface (Partition 2)","Unit":"s","Description":"Swell wave mean period (s), partition 2.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWPER_0m-2.svg"},{"VariableName":"GFSWAVE_SWPER_0m-3","Model":"gfswave","Level":"Sea Surface (Partition 3)","Unit":"s","Description":"Swell wave mean period (s), partition 3.","IconUrl":"https://weather.navapi.cc/GFSWAVE_SWPER_0m-3.svg"},{"VariableName":"GFSWAVE_WVDIR_0m","Model":"gfswave","Level":"Sea Surface","Unit":"°","Description":"Wind wave direction (°); direction from which locally generated wind waves come.","IconUrl":"https://weather.navapi.cc/GFSWAVE_WVDIR_0m.svg"},{"VariableName":"GFSWAVE_WVHGT_0m","Model":"gfswave","Level":"Sea Surface","Unit":"m","Description":"Wind wave significant height (m); average of highest one-third of wind-driven waves.","IconUrl":"https://weather.navapi.cc/GFSWAVE_WVHGT_0m.svg"},{"VariableName":"GFSWAVE_WVPER_0m","Model":"gfswave","Level":"Sea Surface","Unit":"s","Description":"Wind wave mean period (s); average interval between wind-driven waves.","IconUrl":"https://weather.navapi.cc/GFSWAVE_WVPER_0m.svg"},{"VariableName":"RTOFSICE_ICEC_0m","Model":"rtofs_ice","Level":"Sea Surface","Unit":"%","Description":"Sea ice cover (%); fraction of an ocean grid cell covered by ice.","IconUrl":"https://weather.navapi.cc/RTOFSICE_ICEC_0m.svg"},{"VariableName":"RTOFSICE_ICETK_0m","Model":"rtofs_ice","Level":"Sea Surface","Unit":"m","Description":"Sea ice thickness (m); vertical thickness of the ice layer.","IconUrl":"https://weather.navapi.cc/RTOFSICE_ICETK_0m.svg"},{"VariableName":"RTOFSICE_UICE_0m","Model":"rtofs_ice","Level":"Sea Surface","Unit":"m/s","Description":"U-component of sea ice drift (m/s); east-west drift velocity.","IconUrl":"https://weather.navapi.cc/RTOFSICE_UICE_0m.svg"},{"VariableName":"RTOFSICE_VICE_0m","Model":"rtofs_ice","Level":"Sea Surface","Unit":"m/s","Description":"V-component of sea ice drift (m/s); north-south drift velocity.","IconUrl":"https://weather.navapi.cc/RTOFSICE_VICE_0m.svg"},{"VariableName":"RTOFSICE_ICETMP_0m","Model":"rtofs_ice","Level":"Sea Surface","Unit":"°C","Description":"Sea ice surface temperature (°C).","IconUrl":"https://weather.navapi.cc/RTOFSICE_ICETMP_0m.svg"},{"VariableName":"RTOFS_PRACTSAL_0m","Model":"rtofs_prog","Level":"Sea Surface","Unit":"PSU or g/kg","Description":"Practical salinity (PSU) of seawater at the sea surface based on conductivity.","IconUrl":"https://weather.navapi.cc/RTOFS_PRACTSAL_0m.svg"},{"VariableName":"RTOFS_UOGRD_0m","Model":"rtofs_prog","Level":"Sea Surface","Unit":"m/s","Description":"U-component of ocean surface current (m/s); east-west velocity.","IconUrl":"https://weather.navapi.cc/RTOFS_UOGRD_0m.svg"},{"VariableName":"RTOFS_VOGRD_0m","Model":"rtofs_prog","Level":"Sea Surface","Unit":"m/s","Description":"V-component of ocean surface current (m/s); north-south velocity.","IconUrl":"https://weather.navapi.cc/RTOFS_VOGRD_0m.svg"},{"VariableName":"RTOFS_WATPDENA_0m","Model":"rtofs_prog","Level":"Sea Surface","Unit":"kg/m³","Description":"Water density (kg/m³) at the sea surface derived from salinity and temperature.","IconUrl":"https://weather.navapi.cc/RTOFS_WATPDENA_0m.svg"},{"VariableName":"RTOFS_WTMP_0m","Model":"rtofs_prog","Level":"Sea Surface","Unit":"°C","Description":"Sea surface temperature (°C); thermal state of the ocean surface layer.","IconUrl":"https://weather.navapi.cc/RTOFS_WTMP_0m.svg"},{"VariableName":"GFSWAVE_PERPW_0m","Model":"gfswave","Level":"Sea Surface","Unit":"s","Description":"Primary wave mean period (s); average time between successive primary waves.","IconUrl":"https://weather.navapi.cc/GFSWAVE_PERPW_0m.svg"},{"VariableName":"GFS_TMP_0m","Model":"gfs","Level":"Surface","Unit":"°C","Description":"Surface Temperature","IconUrl":"https://weather.navapi.cc/GFS_TMP_0m.svg"}]}