Flight planning forecasts are available in several different formats from DTN, each designed to meet specific user’s needs. Currently, multiple datasets are available, as described in the following sections.
Below is a matrix to provide a quick reference of GRIB2 files, resolution, file names and update frequency. Additional detail can be found in the various sections.
| GRIB Resolution | File name template | Models (<C>) | Model updates (<MM>) | Available | Forecast periods (<FF>) |
|---|---|---|---|---|---|
|
Winds and Temps 1.0 degree |
<C><RT><LL><FF>.GR2 |
GFS |
00z, 06z, 12z, 18z |
3.5 hours after model run time |
Every 3 hours out to 36 hours |
|
Winds and Temps 0.5 degree |
KWBC_<CCC>2_<RR><MMDD><FF>.TGZ |
GFS |
00z, 06z, 12z, 18z |
4 hours after model run time |
Every 3 hours out to 36 hours |
|
Winds and Temps 1.25 degree (Thinned) |
KWBC<DD><HH>_<FF>.TGZ |
GFS |
00z, 06z, 12z, 18z |
3.5 hours after model run time |
Every 3 hours out to 36 hours |
|
Winds and Temps 1.25 degree |
KWBC_WAFS<MM><DD><HH>_<FF>.TGZ |
GFS |
00z, 06z, 12z, 18z |
4 hours after model run time |
Every 3 hours out to 36 hours |
|
Flight Hazards (GRIB2) |
DTN0_<CCC>2_<RR><MMDD><FF>.TGZ |
RAP (North America) |
RAP: hourly |
RAP: 75 minutes after model run |
RAP: Every hour out to 24 hours |