High winds and low relative humidity will continue critical to extremely critical fire weather in southern California through Thursday. A winter storm is expected to bring major impacts from areas of heavy snow, sleet, and freezing rain to portions of the southern Plains beginning on Thursday before intensifying as it shifts across the Mid-South Friday through Saturday morning. Read More >
Telecommunication Operations Center
National Program
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 body of the GRIB bulletin for oceanographic products.
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 |
D | Depth |
E | Ice concentration |
F | Ice thickness |
G | Ice drift |
H | Ice growth |
I | Ice convergence/divergence |
Q | Temperature anomaly |
R | Depth anomaly |
S | Salinity |
T | Temperature |
U | Current component |
V | Not assigned |
W | Temperature warning |
X | Mixed data values |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Telecommunication Operations Center
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