| Surface Measurement | Units |
| Pressure at mean sea level | Pa |
| Surface pressure | Pa |
| Skin temperature | K |
| Layer-1 Soil Temperture | K |
| Evaporation | kg/m** |
| Soil moisture availability | % |
| 1-hr accumulated total precip | kg/m**2 |
| 1-hr accumulated convective precip | kg/m**2 |
| 1-hr average flux of latent heat | w/m**2 (+:downward) |
| Snow water equivalent | kg/m**2 |
| 1-hr accumulated surface runoff | kg/m**2 |
| 1-hr accumu baseflow-groundwater runoff | kg/m**2 |
| U-component at 10 m | m/s |
| V_component at 10 m | m/s |
| 2-meter temperature | K |
| 2-meter specific humidity | kg/kg |
| Station land/sea mask | 0 (land) or 1 (sea) |
| Amount of low cloud | % |
| Amount of middle cloud | % |
| Amount of high cloud | % |
| Ice pellet? | (0 - no, 1 - yes) |
| Freezing rain? | (0 - no, 1 - yes) |
| Rain precip? | (0 - no, 1 - yes) |
| U-component of storm motion | m/s |
| V_component of storm motion | m/s |
| Storm relative helicity | m**2/s**2 |
| Surface Measurement | Units |
| Pressure at mean sea level | Pa |
| Surface pressure | Pa |
| Skin temperature | K |
| 1-hr min temperature at lowest model lvl | K |
| 1-hr max temperature at lowest model lvl | K |
| Soil moisture availability | % |
| 1-hr accumulated total precip | kg/m**2 |
| 1-hr accumulated convective precip | kg/m**2 |
| 1-hr average flux of latent heat | w/m**2 (+:downward) |
| 1-hr avg potential flux of latent heat | w/m**2 (+:downward) |
| 1-hr average flux of sensible heat | w/m**2 (+:downward) |
| 1-hr average flux of sub-surface heat | w/m**2 (+:downward) |
| 1-hr avg flux of snow phase change heat | w/m**2 (+:downward) |
| 1-hr average shortwave downward flux | w/m**2 (+:downward) |
| 1-hr average shortwave upward flux | w/m**2 (+:downward) |
| 1-hr average longwave downward flux | w/m**2 (+:downward) |
| 1-hr average net longwave flux at top | w/m**2 (+:downward) |
| 1-hr average net shortwave flux at top | w/m**2 (+:downward) |
| 1-hr accumulated snow fall | kg/m**2 |
| Total soil moisture | kg/m**2 |
| Snow water equivalent | kg/m**2 |
| 1-hr accumulated snow melt | kg/m**2 |
| 1-hr accumulated surface runoff | kg/m**2 |
| 1-hr accumu baseflow-groundwater runoff | kg/m**2 |
| Bottom soil temperature | K |
| Roughness length | m |
| U-component at 10 m | m/s |
| V_component at 10 m | m/s |
| Potential temperature at 10 m | K |
| Specific humidity at 10 m | kg/kg |
| 2-meter temperature | K |
| 2-meter specific humidity | kg/kg |
| Surface exchange coefficient | m/s |
| Green vegetation cover | % |
| Canopy water | kg/m**2 |
| Layer-1 volumetric soil moisture | None |
| Layer-1 soil temperature | K |
| Layer-2 volumetric soil moisture | None |
| Layer-2 soil temperature | K |
| Station land/sea mask | 0 (land) or 1 (sea) |
| Amount of low cloud | % |
| Amount of middle cloud | % |
| Amount of high cloud | % |
| Snow ratio from explicit cloud scheme | |
| Ice pellet? | (0 - no, 1 - yes) |
| Freezing rain? | (0 - no, 1 - yes) |
| Rain precip? | (0 - no, 1 - yes) |
| U-component of storm motion | m/s |
| V_component of storm motion | m/s |
| Storm relative helicity | m**2/s**2 |
| Pressure at the base of cloud ** | Pa |
| Horizontal visibility** | m |
**added March 2000