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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Telecommunication Operations Center

National Program

Table B6

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Table B6

Data type designator T2

(when T1   =   P, Q)

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 Clear Air turbulence
D Thickness (relative topography)
E Precipitation
F Aerological diagrams (ash clouds)
G Significant weather
H Height
I Sky/cloud cover
J Wave height + combinations
K Swell height + combinations
L Plain language
M For national use
N Radiation
O Vertical velocity
P Pressure
Q Web bulb potential temperature
R Relative humidity
S Snow cover
T Temperature
U Eastward wind component
V Northward wind component
W Wind
X Lifted index
Y Observational plot chart
Z Not assigned