NCEP distributes output from the High Resolution Rapid Refresh (HRRR) model via NOAAPORT and the SBN with the following WMO headers:
T1T2A1A2ii CCCC
where:
CCCC = KWBY
T1 = Y (GRIB2 Products)
| T2= | A - total cloud | A - dew point temperature |
| A - wind speed at 10 m above ground | ||
| D - percent of frozen precipitation | E - total precipitation | |
| F - precipitable water | H - height | |
| H - height of cloud top | H - lifted condensation level | |
| H - planetary boundary layer height | H - model terrain height | |
| K - surface visibility | ||
| M - categorical precipitation types (snow, ice pellets, freezing rain and rain) | N - wind gust speed | |
| O - vertical velocity | O - mean vertical velocity | |
| P - pressure mean sea level | P - surface pressure | |
| P - Pressure of level from which parcel was lifted | ||
| Q - best 4 layers lifted index | ||
| S - Snow depth | S - Water equivalent accumulated snow depth | |
| T - temperature | U - U component of wind | |
| U - U component of wind shear - Low Level | U - U component of wind shear - Deep Layer | |
| V - V component of wind | V - V component of wind shear - Low Level | |
| V - V component of wind shear - Deep Layer | W - CAPE | |
| X - surface lifted index | Y - CIN | |
| Z - radar reflectivity | Z - maximum radar reflectivity | |
| Z - composite radar reflectivity | Z - echo top | |
| Z - radar vertically-integrated liquid water | Z - high-level cloud fraction | |
| Z - mid-level cloud fraction | Z - low-level cloud fraction | |
| Z - lightning | Z - storm relative helicty | |
| Z - maximum of updraft helicity over layer 2 to 5km AGL | Z - maximum updraft velocity | |
| Z - maximum downdraft velocity | Z - total column integrate graupel |
| A1 = | C - 2.5 km NDFD grid over CONUS (Lambert Conformal) |
A2 specifies the forecast time (ranging from 00 to 15 hours)
| A= 00, B=01, C=02, D=03, E=04, F=05, G=06, H=07, I=08, J=09, K=10, L=11, M=12, Z=13, Z=14, Z=15 |
| ii = | 99 - 1000 mb | 98 - surface |
| 98 - 10m above ground | 98 - 80m above ground | |
| 97 - level of the tropopause | 96 - level of maximum wind | |
| 92 - 925 mb | 89 - any parameter reduced to see level | |
| 86 - boundary layer | 85 - 850 mb | |
| 70 - 700 mb | 50 - 500 mb | |
| 01 - refer to grib PDS | 00 - entire atmosphere |