
A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >
NWS Telecommunications Gateway
National Program
Instructions for the proper application of the data type designator
1. The first letter A1 will denote the nature of the ship or automatic marine station:
For ocean weather stations: W
For mobile ships and other marine stations: V
2. The second letter A2 will denote the area from which the reports contained in the bulletin originate:
| Designator | Data Area |
| A | Area between 30° N - 60° S, 035° W - 070° E |
| B | Area between 90° N - 05° N, 070° E - 180° E |
| C | Area between 05° N - 60° S, 120° W - 035° W |
| D | Area between 90° N - 05° N, 180° W - 035° W |
| E | Area between 05° N - 60° S, 070° E - 120° W |
| F | Area between 90° N - 30° N, 035° W - 070° E |
| J | Area between 60° S |
| X | More than one area |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
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