National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

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Table B2

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Table B2

Data type designator T2

(when T1   =   D, G, H, X or Y)

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