There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >
U.S. Table for National GRIB Products
U.S. National Practice
Instructions for the proper application of the data type designator
1. The designator specified in this table should be used to the greatest extent possible to indicate the data types of the data contained within the text of the bulletin.
2. Where the data type does not correspond exactly with the designator, the designator for the most approximate type of the data may be used.
3. The NWS will assign deginators to this table in place of the unassigned designators when needed.
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|
Data Type |
| A | Cloud parameters (ice, water) |
| B | Vertical wind shear |
| C | Vorticity |
| D | Probability values (thunderstorm, precip types, cloud types) |
| E | Precipitation parameters (precip water, convective precip) |
| F | Long wave radiation |
| G | Temperature values (maximum, minimum, dew point) |
| H | Height (geopotential) |
| I | Unassigned |
| J | Unassigned |
| K | Ocean wave properties (period, direction) |
| L | Unassigned |
| M | Unassigned |
| N | Unassigned |
| O | Vertical velocity/surface lifted index |
| P | Pressure |
| Q | Stability index |
| R | Relative humidity |
| S | Snow properties |
| T | Temperature |
| U | Wind components (UV) |
| V | Unassigned |
| W | Cape/cin/helicity |
| X-Z | Unassigned |
