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Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

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Table D2 or D3

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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.