Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. 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 |
