A couple of frontal boundaries will move east and south from the Plains to the Gulf and Atlantic coastlines. These boundaries will focus showers and thunderstorms through the weekend, with scattered severe thunderstorms from the Southern Plains and across the Gulf Coast states. Locally heavy rainfall may also occur, which may be welcome news across drought areas. Meanwhile, heat spreads westward. Read More >
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 type of data contained within the text of the bulletin.
2. Where more than one type is contained in the text, the designator for one of the data types should be used.
3. When the table does not contain a suitable designator for the data type, an alphabetic designator which is not assigned in the table should be introduced and the WMO secretariat notified.
| Designator | Data Type |
| A | Radar data |
| B | Cloud |
| C | Vorticity |
| D | Thickness (relative topography) |
| E | Precipitation |
| F | Unassigned |
| G | Divergence |
| H | Height |
| I | Unassigned |
| J | Wave height + combinations |
| K | Swell height + combinations |
| L | Unassigned |
| M | For national use |
| N | Radiation |
| O | Vertical velocity |
| P | Pressure |
| Q | Web bulb potential temperature |
| R | Relative humidity |
| S | Unassigned |
| T | Temperature |
| U | Eastward wind component |
| V | Northward wind component |
| W | Wind |
| X | Unassigned |
| Y | Unassigned |
| Z | Unassigned |
