Data-Specific Collective Files (original) (raw)
Heavy Rain in the Lower Mississippi Valley Saturday, then Heavy Rain and Snow in the Northwest Starting Sunday
Heavy rains will bring potential flash flooding to portions of the lower Mississippi Valley early this weekend. Across the Pacific Northwest, an atmospheric river event is set to arrive by Sunday, bringing heavy coastal rains and high elevation snowfall. Above average temperatures continue for much of the country through the weekend.Read More >
Telecommunication Operations Center
National Program
WSR-88D Product Files
Gateway File Services
Data-Specific Collective Files
Introduction
The U.S. National Weather Service provides anonymous FTP access to files containing collectives of coded observations and forecasts. The collectives are in the same format as exchanged on the GTS and Family of Services. The internal format of the files is described in the document OSO File Name Standards. The naming conventions for the files are described in the document File and Directory Name Standards. The data is directly available at the server tgftp.nws.noaa.gov via anonymous FTP.
Information Available
The following code forms are available on the server. The set of data available includes all of the data types listed here that are received at the NWS Telecommunication Gateway. However, these files do not include additional data as defined by WMO Resolution 40.
Data Types List:
- AIREP
- AMDAR
- DRIBU
- DROP Sonde
- METAR
- PILOT
- PILOT SHIP
- Profiler (BUFR)
- RECCO
- SHIP
- SIGMET
- SPECI
- Supplementary Climatological Data (ASOS)
- SYNOP
- TAF
- TEMP
- TEMP SHIP
File and Directory Descriptions
See Directory and File Naming Standards for information about directory and file name formats.
| Directory Name | Contents |
|---|---|
| SL.us008001/ | Data root - for NWS Telecommunication Gateway Server |
| DF.an/ | Data in WMO character format |
| DC.sflnd/ | Data category: surface data - land |
| DS.metar/ | Data subcategory: aviation - METAR |
| DS.synop/ | Data subcategory: surface synoptic - SYNOP |
| DS.sclim/ | Data Subcategory: Aviation - Supplementary Climate Data |
| DS.tafst/ | Data subcategory: aviation forecast - TAF (Terminal Area Forecast) |
| DC.sfmar/ | Data category: surface data - sea |
| DS.dbuoy/ | Data subcategory: drifting buoy - DRIBU |
| DS.ships/ | Data subcategory: ship synoptic - SHIP |
| DC.sluan/ | Data category: single-level upper-air data other than satellite |
| DS.airep/ | Data subcategory: AIREP |
| DS.amdar/ | Data subcategory: AMDAR |
| DS.recco/ | Data subcategory: RECON |
| DS.sigmt/ | Data subcategory: SIGMET |
| DC.vsndn/ | Data category: vertical sounding other than satellite |
| DS.dropw/ | Data subcategory: DROP sonde |
| DS.prflr/ | Data subcategory: Profiler - BUFR codeform |
| DS.raobf/ | Data subcategory: Rawinsonde - fixed land (TEMP, PILOT) |
| DS.raobs/ | Data subcategory: Rawinsonde - ship (TEMP SHIP, PILOT SHIP) |
Delivery Details
Data is updated on the FTP server every five minutes with the latest information received from NWS communications sources. File names within each data subcategory directory have the format sn.nnnn where nnnn is a four-digit number ranging from 0000 to 0300. Files are written in sequence with the file sn.0000 following sn.0300. This scheme provides unique file names for at least the previous 24 hours of data receipt.
The first line of the file is the time when the file was last updated and consists of the abbreviated day of the week, abbreviated month name, day of month, hour, minute, second, time zone, and year. All remaining lines in the file have the form:
path [tab] name
where path is the data subcategory path, starting at the data root and name is the name of the most recently written file for that subcategory.
Data files are written only when data of that subcategory type is available.
Further questions or comments concerning data in SL.us008001 path may be directed to NWS.ISG@noaa.gov.