Effective September 6, 2006 at 1400 UTC – Six Forecasts
for Alaska to be Added as Experimental Elements to
the National Digital Forecast Database
On September 6. 2006 at 1400 Coordinated Universal Time (UTC),
six elements for Alaska will be added to the National
Digital Forecast Database (NDFD) in experimental status.The
six elements are:
| Maximum
Temperature |
Wind
Direction |
| Minimum Temperature |
Wind Speed |
12-Hour Probability
of Precipitation (PoP12) |
Significant
Wave Height |
REMINDER: Two other NDFD
changes are also being implemented September 6, 2006 at 1400
UTC
The spatial resolution for the NDFD elements for Alaska is 6 kilometers. NOTE: The spatial resolution
of all NDFD elements for all other domains (CONUS; Puerto Rico/Virgin
Islands; Hawaii; and Guam) is 5 kilometers.
As with all elements in NDFD, the experimental elements for Alaska will be accessible in several ways:
Partners and customers who want to access these elements for Alaska via their procedures and scripts. Detailed information
for ftp users is included below. Customers who use
the NDFD graphical forecasts and
the NDFD XML via
web service can use the same methods they currently use to
acquire these new NDFD elements for Alaska. The graphics
for these elements for Alaska will be labeled “experimental”.
Other useful NDFD web pages:
Questions or feedback? Please e-mail nws.ndfd@noaa.gov or complete a Customer Survey:
GRIB2 file users Graphics users NDFD XML
Comments and feedback on these experimental elements for Alaska will be accepted through
April 6,
2007
REMINDER: Two other changes to NDFD are also
being implemented on September 6 at 1400 UTC:
- All NDFD element files will be split into smaller files. For
information on that change, see:
- Add wind gust as an experimental
element for the CONUS; the 16 pre-defined
CONUS subsectors; Puerto Rico/Virgin Islands; Hawaii;
and Guam. For
information on that change, see:
Instructions for anonymous ftp users:
At 1400 UTC on September 6, 2006, the first set of forecasts
for Alaska will be available as experimental elements in NDFD. The new
elements are:
| Maximum
Temperature |
Wind
Direction |
| Minimum Temperature |
Wind Speed |
12-Hour Probability of
Precipitation (PoP12) |
Significant Wave
Height |
Partners and customers who want to access these experimental
NDFD elements via anonymous ftp may need to update
their procedures and scripts. The file names and URLs
to access these six experimental elements for Alaska via ftp are shown below.
To access the experimental elements for Alaska from NDFD via anonymous ftp, starting at 1400 UTC on September 6,
2006:
For Days 1-3 Go To:
ftp://tgftp.nws.noaa.gov/SL.us008001/ST.expr/DF.gr2/DC.ndfd/AR.alaska/VP.001-003/
in that subdirectory, the following files will be available,
starting September 6, 2006 at 1400 UTC:
|
Element |
Filename for GRIB2 file available via anonymous ftp |
|
Maximum Temperature |
ds.maxt.bin |
|
Minimum Temperature |
ds.mint.bin |
|
12-Hour Probability of Precipitation (PoP12) |
ds.pop12.bin |
|
Wind Direction |
ds.wdir.bin |
|
Wind Speed |
ds.wspd.bin |
|
Significant Wave Height |
ds.waveh.bin |
For Days 4-7 Go To:
ftp://tgftp.nws.noaa.gov/SL.us008001/ST.expr/DF.gr2/DC.ndfd/AR.alaska/VP.004-007/
in that subdirectory, the following files will be available,
starting September 6, 2006 at 1400 UTC:
|
Element |
Filename for GRIB2 file available via anonymous ftp |
|
Maximum Temperature |
ds.maxt.bin |
|
Minimum Temperature |
ds.mint.bin |
|
12-Hour Probability of Precipitation (PoP12) |
ds.pop12.bin |
|
Wind Direction |
ds.wdir.bin |
|
Wind Speed |
ds.wspd.bin |
|
Significant Wave Height
(only goes
out to 120 hours) |
ds.waveh.bin |