Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >
Data Type Designator T1 Matrix Table
for
T2A1A2ii definitions
T1 | Data type | T2 | A1 | A2 | ii | Priority | Max Length |
A | Analyses | B1 | C1 | C1 | ** | 3 | 15,000 |
B | Service message | *** | *** | *** | *** | 1/2/4* | 15,000 |
C | Climatic data | B1 | C1 | C1 | ** | 4 | 15,000 |
D | Grid point information (GRID) | B2 | C3 | C4 | D2 | 3 | 15,000 |
E | Satellite imagery | B5 | C1 | C1 | ** | 3 | (1) |
F | Forecast | B1 | C1 | C1 | ** | 3 | 15,000 |
G | Grid point information (GRID) | B2 | C3 | C4 | D2 | 3 | 15,000 |
H | Grid point information (GRIB) | B2 | C3 | C4 | D2 | 3 | 15,000 |
I | Binary observation - BUFR | B3 | C6 | C3 | ** | 3 | 15,000 |
J | forecast Information - BUFR | B3 | C6 | C4 | D2 | 3 | 15,000 |
K | CREX | C7 | C7 | C3 | ** | 2 | 15,000 |
L | -- | ||||||
M | -- | ||||||
N | Notices | B1 | C1 | C1 | ** | 4 | 15,000 |
O | Oceanographic (GRIB) | B4 | C3 | C4 | D1 | 3 | 15,000 |
P | Pictorial information(binary) | B6 | C3 | C4 | D2 | 3 | 15,000 |
Q | Pictorial information regional | B6 | C3 | C5 | D2 | 3 | (1) |
R | -- | ||||||
S | Surface data | B1 | C1/C2 | C1/C2 | ** | 2/4* | 15,000 |
T | Satellite data | B1 | C3 | C4 | ** | 2 | 15,000 |
U | Upper-air data | B1 | C1/C2 | C1/C2 | ** | 2 | 15,000 |
V | National data | (3) | C1 | C1 | ** | (2) | (1) |
W | Warnings | B1 | C1 | C1 | ** | 1 | 15,000 |
X | GRID regional use | B2 | C3 | (2) | D2 | 3 | 15,000 |
Y | GRIB regional use | B2 | C3 | (3) | D2 | 3 | 15,000 |
Z | GRIB National use | (3) | (3) | (3) | (3) | 3 | 15,000 |
* Priority level:
H uses C8 instead of C3
Y & Z uses B7 instead of B2
Y & Z uses C8 instead of C3
Y & Z uses C9 for the T2 A1 fields to define a TILE number when the heading uses KWBZ
Y & Z uses C10 for forecast hours
Y & Z uses D3 instead of D2