Winter Storms in the Central and Eastern U.S.; Heavy Rain in the Southeast

A winter storm will bring heavy snow and ice to the Ohio Valley into the Mid-Atlantic through Wednesday. Significant ice is forecast for the Central Appalachians. Another winter storm will bring heavy snow and ice to the Central Plains today. Heavy to excessive rain will result in flash and river flooding threats over parts of the Lower Mississippi and Tennessee Valleys and Southern Appalachians. Read More >

Table B4

Data type designator T2

(when T1 = O)

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