Lake effect snow will continue downwind of the Lower Great Lakes through Wednesday, with accumulations of 4 to 8 inches possible for portions of Upstate New York and the Adirondacks. Gusty winds and dry conditions will result in critical fire weather conditions in the Southwest and Southern Plains Wednesday through Friday. Red Flag Warnings have been issued. Read More >
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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 |
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National Oceanic and Atmospheric Administration
National Weather Service
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