National Weather Service United States Department of Commerce

Rain and Thunderstorms in the Southeast; A Wintry Mix in the Southern Mid-Atlantic

A frontal system is expected to bring showers and thunderstorms along the Gulf Coast and Southeast, and some snow and/or freezing rain/drizzle over the southern Mid-Atlantic into the morning. A series of Clipper systems will bring periods of snow to the Northern Plains and Great Lakes over the next couple of days. Read More >

NWS Telecommunications Gateway

National Program

Table D2 or D3

Weather.gov > NWS Telecommunications Gateway > Table D2 or D3
 

Table D2 or D3

Data level designator ii

(when T1   =   D, G, H, P, Q, V, X or Y)

 

There are TWO tables defined for this designator.

T1   = D, G, H, P, Q, V, X, or Y

1. The WMO standard Table D2 as documented in Manual 386 PART II, Attachment II-5, and used for T1   = D, G, H, P, Q, V, X, or Y , which is used in most parts of the world for defining these products.

T1   = H, X, Y, and Z

2. The U.S. National Practice Table D3 which is used to extend the data level designation of ii definitions as defined in WMO manual 386 Table D2, and used for T1   = H, X, Y, and Z bulletins, used for most U.S. model products.