High winds and low relative humidity will continue critical to extremely critical fire weather in southern California through Thursday. A winter storm is expected to bring major impacts from areas of heavy snow, sleet, and freezing rain to portions of the southern Plains beginning on Thursday before intensifying as it shifts across the Mid-South Friday through Saturday morning. Read More >
Telecommunication Operations Center
National Program
( when T1 = Z and the CCCC = KWBZ)
( A DRAFT U.S. National Practice Table )
Instructions for the proper application of the Geographical "TILE" number designator - A two character field of the heading.
1. The designator specified in this table should be used to the greatest extent possible to indicate the geographical high resolution grid tile number of the data contained within the geographical area as specified by the grid squares defined by the producing center of the GRIB bulletin.
2. Where the geographical tile number for the area of the data does not correspond exactly with the designator, the number designator for the area most approximating that area of the data may be used. The exact area of coverage will be available within the GRIB Product Definition Section (PDS) of the bulletin.
Designator | Geographical Area Tile Number | NCEP Model |
AA - AW | 01 - 24 CONUS 20 km tiles | meso-Eta |
AY - AZ | unassigned | |
BA - BW | 01 - 24 CONUS 20 km tiles | RUC |
BY - BZ | unassigned | |
CA - CW | unassigned | |
CY - CZ | unassigned | |
DA - DZ | unassigned | |
EA - EZ | unassigned | |
FA - FZ | unassigned | |
GA - GZ | unassigned | |
HA - KR | 01 - 96 CONUS 10 km tiles | meso-Eta |
KS - KZ | 01 - 08 Alaska 20 km tiles | RUC |
LA - OR | 01 - 96 CONUS 10 km tiles | RUC |
OS - OZ | 01 - 08 Hawaii 20 km tiles | RUC |
PA - QZ | unassigned | |
RA - RF | 01 - 06 CONUS 40 km tiles | meso-Eta |
RG - RL | 01 - 06 CONUS 40 km tiles | RUC |
RM - RR | 01 - 06 Alaska 40 km tiles | meso-Eta |
RS - RX | 01 - 06 Alaska 40 km tiles | RUC |
RY - RZ | unassigned | |
SA - SF | 01 - 06 Hawaii 40 km tiles | meso-Eta |
SG - SL | 01 - 06 Hawaii 40 km tiles | RUC |
SM - ZZ | unassigned |
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Telecommunication Operations Center
1325 East West Highway
Silver Spring, MD 20910
Comments? Questions? Please Contact Us.